Electronics

HDMI CEC Mode (consumer electronics control) is a distinct HDMI feature facilitating single remote control for all HDMI joined systems. CEC lets the devices take command over each other without involving the user.

In this article, we shall learn the basics of HDMI CEC Mode and its core concepts. HDMI CEC helps the HDMI devices to communicate with the TV back and forth. Many TVs and peripheral devices have CEC on them. This feature makes all the things work together neatly. But often, we see it being disabled in our machine. 

What is HDMI CEC Mode?

CEC and ARC are the most vital functions of an HDMI device. CEC has been a path-breaking technology for the interconnection between all HDMI-connected components. It avoids the hassle of multiple remote controls.

In the current era, a TV is not always sufficient to cater to the needs of viewers. Most of the time, a Bluray player or a soundbox or some other devices are plugged in with HDMI on TV for a better AV experience. HDMI CEC Mode is that all-in-one tool that allows the devices to connect and control each other.

What are CEC settings?

CEC settings on TV play an essential role in making the whole AV set-up more straightforward. It is like a behind the scene tool for communication between the connected devices with the help of HDMI.

HDMI CEC prevents the user from handling numerous remotes for different functions. Through this feature, the entire TV kit works as one. If we use a soundbar or a Bluray player, we don’t need to switch it off separately. Just by pressing the power off button on the TV remote will turn off all the systems. 

Read more on…..HDMI CEC Vs. ARC: In Depth Comparative Analysis And Facts

HDMI CEC Mode- FAQs

Do I want HDMI-CEC on or off?

Many times in our devices, we see HDMI CEC Mode is turned off by default. While there is a debate on whether we should turn CEC on or not, it is a fact that CEC makes total working much more effortless.

We know, CEC works like a universal remote for the TV and other systems connected to it through HDMI. We can control our soundbar or Xbox with the TV remote and vice-versa. CEC does help to make tasks seamless, but it is disabled as sometimes the auto power or system priority settings on CEC can create problems.

Do all HDMI cables support HDMI-CEC?

As CEC is just a particular mode in the TV or the HDMI device, it does not depend upon the cable we are using. Though CEC exists in almost all HDMI devices, it is not a compulsion to install CEC in TVs.

We can check if our TV is CEC compatible or not. We should select Settings and then System to enable the option “HDMI Device Link.” We can browse through the same place or search on the web for “HDMI-CEC” to know if the device has HDMI-CEC and the enabling process if it is not disabled by default.

Can HDMI-CEC turn off TV?

HDMI CEC Mode can perform a lot of tasks and has attributes like one-touch play and record, preset transfer, system audio control, remote control pass through, device menu control, etc. But it can not turn off the TV. 

If we keep the HDMI CEC Mode enabled in our TV set, we can turn on the TV and peripheral devices through the TV remote only. Tv is the most crucial component of the CEC setup. If we turn off any of the devices, most likely, the TV will not turn off. That is why CEC mode comes in a disabled state by default.

What can HDMI CEC do?

HDMI CEC Mode offers a wide range of functions like one-touch play, remote control pass through, system audio control, Timer programming, system standby, etc. Here are some details about these functions-

One-touch play: Any media device can turn on the TV and automatically switch the input port.

Remote control pass through: We can pass through the remote control commands to the other devices.

System Audio Control: Any suitable remote control can operate the volume of the receiver or amplifier.

How do I connect to HDMI CEC?

The CEC option is available in the main menu of the TV. Users can navigate through the given options to find the brand-specific CEC using the TV remote or do a web search as “HDMI CEC” to find it out.

For TV sets, we can find the HDMI CEC Mode in general settings or somewhere similar. The table below contains a guide to some manufacturer’s CEC settings:

Brand	CEC Name	Instructions
Samsung	Anynet+	Home > settings > general > External Device  Manager > Anynet+ (HDMI-CEC)
LG	Simplink	Home > settings > general > Simplink
Sony	BraviaSync	Home > external input > HDMI Set-up > Control for HDMI > Toggle on
Philips	Easylink	Home > Setup > TV settings > Installation > Preferences > EasyLink > Toggle on
Hitachi	HDMI-CEC	Home > Settings > System > Inputs > CEC
Vizio	CEC	Menu > System > CEC > Enable
Sharp	Aquos link	Menu > System Options > Aquos Link Setup > Aquos Link Control > turn on
Toshiba	Regza link	Menu > Options > HDMI CEC Control Setup > HDMI CEC Control > turn on all options
Roku	1 Touch play	Home button > Settings > System > Control other devices (CEC) > check both “System audio control” and “1-touch play”
Panasonic	Viera link	Menu > Setup > HDMI control > CEC > Toggle on

Do all TVs have CEC?

All modern-day TVs have the HDMI CEC Mode in them. While the CEC wiring is compulsory in all TVs, most of the TVs come with CEC mode disabled. However, we can turn the HDMI CEC Mode on at any time.

Here is a table with the CEC names for some well-known brands-

Brand Name	CEC Name	Brand Name	CEC Name
Samsung	Anynet+	Pioneer	Kuro Link
LG	SimpLink	Philips	EasyLink
Sharp	Aquos Link	Onkyo	RIHD (Remote Interactive over HDMI)
Sony	BRAVIA Sync	Roku	1 touch play
Vizio	CEC	Toshiba	CE-Link and Regza Link
AOC	E-link	ITT	T-Link
Hitachi	HDMI-CEC	Panasonic	HDAVI Control, EZ-Sync, or VIERA Link
Insignia	(INlink)	Mitsubishi	NetCommand for HDMI

How do I turn off HDMI CEC?

Completely disabling CEC on the TV will prevent the audio from being transmitted via HDMI to other devices. Every brand has a separate name for HDMI CEC. So, the enabling or disabling process slightly varies.

We can follow some simple steps to turn CEC off. These are the general steps and can vary from one brand’s CEC to another.

• ‌At first, go to the Menu on TV.
• ‌Navigate through the options and select Settings.
• Navigate further to down and select the CEC setting.
• ‌Click on CEC and disable it by selecting Off.

How do I find CEC on my TV?

Every TV has a separate name and process for the set-up of HDMI CEC. Users need to browse the menu, follow the instructions and go through the available options to find the CEC mode on their own devices.

It sometimes becomes hard to find the HDMI CEC Mode on the TV as each TV manufacturer has a different name for CEC. The table containing the names is given above. There are some brands other than the table that name their HDMI CEC Mode as the proper name. We should refer to the TV manual to know the name correctly.

What is CEC receiver?

We have already learned the utilities of HDMI CEC. We can sync any receiver with the TV using CEC. Suppose, if we connect a receiver with our HDMI TV, we won’t need a separate remote to operate the receiver.

We can connect TV or AV receivers through CEC in HDMI. Some of them support ARC as well. For example- Onkyo TX-L50 is a tiny and space saving receiver that comes with Dolby true HD, airplay, Bluetooth, etc.

What is CEC passthrough?

A vital aspect of the HDMI CEC is the pass through. “Pass through” is that part of CEC that establishes the mutual control between the devices. CEC pass through is also called “remote control pass through.” 

When we press the pause, play, or arrow keys on the remote control of the receiver, CEC sends those commands to the HDMI input device that is active at that point. For example, we can use the TV remote for controlling some specific functions of other devices that are connected to the TV using HDMI.

This article has discussed the various points why do we use AC instead of DC in multiple applications or appliances used in homes and industries.

Let’s discuss different application why do we use AC instead of DC as:

• Alternative current (AC) can be a step-down or step-up very easily by using various methods such as transformer to required value while losing minimum energy during conversion, as transformer works efficiently with AC power supply.

• Alternating current (AC) is used in industry for transmission in the generation of electricity as generation of alternating current is much cheaper and easier than that of a DC voltage. For Higher voltages and AC has much better efficiency in DC during transmission. 

• The devices that convert electrical energy into any mechanical energy use Alternative Current as a power supply, as when energy conversion is easier with AC as loss during conversion is lower the DC power conversion.

• Generally, for all types of operations in transformer, transformer use of AC supply is the main power supply. Where DC supply does not work properly with transformer as DC cannot easily generate an alternating magnetic field. The fundamental requirement for the operation of the transformer needs a change in the magnetic field, which induces the voltage in the second coil.

• High-voltage AC is relatively more efficient than DC for sending electricity over a significant distance. High Voltage generation in AC is relatively more accessible than that in DC.

• A Single-phase AC power supply is used in the home. In contrast, a three-phase AC power supply is used for commercial and steel facilities to accommodate high-voltage load better, for easy generation, transmission, and less maintenance requirement.

• An AC induction motor is easy to use, whereas a DC induction motor for proper working requires an additional commutator brush and switches.

• Arc generated in an AC circuit can be easily extinguished or can be self-extinguished, given that an AC has two zero-crossing points in its every complete cycle. In contrast, Arc generated in DC is much stronger and cannot be self-extinguished as DC does not have any zero-crossing.

• The AC generator is more efficient than the DC generator. Due to various losses in DC generators such as eddy current loss, mechanical loss, sparking, copper loss, and hysteresis loss, DC generator efficiency reduces. An AC generator does not require a commutator; maintaining an AC generator is much easier than that of a DC generator. The AC generator is very easily able to generate high voltage relative to the DC generator.

• Adding switches in the AC circuit is relatively more accessible than that of the DC circuit. When the AC circuit is switched off, a voltage Spark is generated inside the switch, which gets self-extinguished as AC has two zero-crossing points in its complete circle. Wherever in DC, both current and voltage are constant when switched off in DC circuit, the voltage is generated inside the switch stays for longer than that of AC if an Arc stays for longer in the circuit switch contacts making it burnt, pitted, overeating or premature switch failure.

• Three-Phase AC supply is used because with a three-phase supply, the electrical power is more consistent, which allows the machine to run more efficiently, and the device becomes more durable

• Three-phase AC energy system is used in various industries which use has high power demand three-phase AC system is used because power delivering through three-phase AC system is constant, can be used for more efficient use of materials, the installation cost is lower, the size of equipment reduces with the use of three-phase power supply etc

• In the household, the three-phase connection is not required as the power consumption is not as high as industries, but if there are a lot of heavy appliances used in a house, then a three-phase connection may be installed as a requirement

• Single-phase AC connection is generally used in residential appliances as single-phase AC is more efficient up to 1000 watts, design costs less, and the design is simple, the large array of application use of single-phase AC supply.

• Three-Phase power supply is used in mobile towers, data centres, aircraft, power grids, ship boards, etc. it is as well as many electronic loads that need more than 1000 watts of power for operation

• The three-phase power supply is used in power-hungry and high-density data centres. In high-density data centres, a more powerful computing system is being used and is packed in a small area. Some racks hold several servers that can draw 20 to 30 KW of power, so constant power and efficiency matter; that’s why a three-phase AC supply is used. By using a three-phase AC supply in the high-density data centre, losses can be minimised as well as load balancing across power is more straightforward, which results in optimum utilisation of power supply.

• AC drivers are widely in use in process industries to increase the efficiency of each piece of equipment. AC drivers control the speed of the electric motor as a requirement which reduces the overall energy consumption by 30 to 40%. In contrast, AC drivers in the industry used to regulate and control types of equipment such as conveyors, fans, machine spindles, etc.

• The cable size of the AC power supply is somewhat lighter relative to the DC power supply cable for the same rating.

• Electrosurgery uses the characteristics of a high-frequency alternating current for the removal or destruction of tissue. In this procedure, the high oscillating current is used to heat the tissue; the degree of destruction depends on the frequency of oscillation and the power of the supply current.

• Because of the two advantages of AC over DC on generation and transmission, alternate marine power (AMP) uses AC for operation.

• A general air conditioner uses AC over DC; some Air Conditioner uses DC for operations, but that DC AIr conditioner has low power applications. Air Conditioners require AC because of their high power consumption applications.

• The motor, which uses AC as a power supply, requires lower startup power and has better control over starting current and acceleration can be customised into various speed and torque requirements and ac Motors are more durable than DC Motors.

• In alternating, current can be easily converted to direct current by using a rectifier, filter, diode, etc. The conversion from DC to AC can be done by a complicated circuit of an inverter that costs much more than that of AC to DC Converter.

This article enlightens upon the question Is DVI Better Than HDMI or not. Digital Visual Interface is shortly called DVI. DVI cables came into the market before the high-definition media interface or HDMI. 

Both HDMI and DVI have some pros and cons. They look different, function differently, and allow different outputs. But in the broader view, HDMI supports audio along with video, has a better data rate, is more available, and is compatible with more devices; all of these make HDMI a more suitable option. 

Parameters	HDMI	DVI
Time of foundation	HDMI was designed in 2002.	DVI was designed in 1999.
Size	HDMI is bigger than DVI.	The DVI plug is much smaller in size.
StructureThe HDMI cable has a thin gap surrounded by 19 pins.	DVI plug has 24 small pins, sometimes with three different rows and one big pin.
Data rate	HDMI 2.1 supports 42.6 gbit/s	DVI supports 9.9 gbit/s.
Resolution	Supported resolution is Upto 8k	Maximum resolution is 3840*2400
Refresh rate	Maximum supported refresh rate is up to 120 Hz.	Maximum supported refresh rate is 60 Hz.
Audio compatibility	It supports audio transmission.	Audio transmission isn’t supported by DVI.

What is DVI and its types? Explain in detail.

Digital Visual Interface, commonly known as DVI, is a platform that transmits video signals. We cannot get audio through the DVI cable. DVI consists of three types- DVI-A, DVI-D, and DVI-i. 

DVI-A or DVI Analog is the oldest version. It can only transfer analog video signals. DVI-D is the most used out of all DVI types. Here, D stands for digital (transmits digital signals). We can classify it in single and dual-link. DVI-i and DVI-D are almost the same, but it allows analog and digital signals both.

Is DVI Better Than HDMI– FAQS

Is DVI or HDMI better for gaming?

HDMI is the best option after DisplayPort when it comes to HD gaming. DVI doesn’t allow audio transmission, which HDMI does, and it is not a viable choice in high resolution and refresh rate. 

In 1080p or even 1440p and 4K gaming, both DVI and HDMI work fine (without the audio part). But if we think about refresh rates, HDMI is the preferred one. While dual-link DVI can still work at a 60 Hz refresh rate, we have to use HDMI for 144 Hz or more refresh rates. For 4k, DVI doesn’t work over 30 Hz.

Is DVI or HDMI better for PC?

Out of DVI and HDMI, it is better to opt for an HDMI cable. Most of the devices are HDMI compatible, and even HDMI is their default connector. Moreover, it can carry both audio and video over just a single cable. 

While experts recommend HDMI for PC, using already existing DVI won’t be an issue. We certainly get better quality A/V from the latest HDMI standards, but the difference is noticeable in large monitors. So, for basic display, DVI works fine. If we want audio, using HDMI will help us reduce the number of cables.

Does HDMI or DVI have a better picture?

In terms of picture quality, both DVI and HDMI are at par. The picture quality depends upon the monitor. If the monitor can’t show higher resolutions or color schemes, it doesn’t matter whether we use HDMI or DVI.

DVI supports 8-bit RGB colors, while through HDMI, we can display up to 12-bit different color spaces. Also, HDMI is capable of handling 8k resolutions at 120 Hz, where the maximum possible resolution for HDMI is 3840*2400 at 30 Hz. So HDMI appears better than DVI in some specific cases.

Is DVI better than DisplayPort?

Between various A/V devices, DisplayPort is the most preferred of all. Be it a resolution, cable need, or audio compatibility, DisplayPort is a better choice than DVI. So, for many reasons, DisplayPort is finer.

If we have proper systems, we can stream up to 8k video through the latest versions of DisplayPort. DVI dual-link can not even reach up to 4k resolution. Also, the biggest drawback for DVI is the lack of audio transmission. On the other hand, we can run multiple monitors through one cable in DisplayPort.

Do DVI to HDMI adapters work?

HDMI standards are mostly backward compatible. So we can utilize DVI to HDMI adapters in case we have a system with only DVI. But we need to make a separate audio channel as DVI does not support it.

The DVI-D port on the adapter has one big pin and 24 small pins on one side, and an HDMI port on the other side. We need to connect the DVI side of the adapter to the computer and then connect an HDMI cable on the opposite side. Now, we can join the HDMI cable to any compatible device and make things work.

Read more on….How Does A HDMI Arc Adapter Work: What, How and In depth Facts

Can you connect DVI to HDMI?

DVI to HDMI adapters come in handy if we want to connect DVI and HDMI. The cable allows us to join the DVI output with the TV’s HDMI input. Following are the steps to do this task-

1. Turn the display and the TV off.

2. Connect the DVI end of the adapter to the DVI output and the HDMI end to the HDMI port on the TV.

3. Connect a separate audio cable for sound and turn on the display.

4. Follow the instruction manual of the TV to set the HDMI, and the job is done.

Can I go from DVI to DisplayPort?

DVI to DisplayPort connection is possible. There are different DVI to DisplayPort adapters available in the market that help to connect a secondary monitor with a DVI port on the computer. 

The source device, with the help of DisplayPort specifications, can generate a DVI signal of DVI type. So we can use an adapter/ Displayport to DVI cable with a monitor having DVI input. But, the reverse is not supported, i.e., we can not use the DVI output of a video card to the DisplayPort input of a monitor.

Electricity has two forms: alternating current AC and direct current DC, so there is always a comparison between AC or DC, Tesla has supported AC where Edison has supported the DC mode of electricity.

Although alternating current AC is comparatively more used than that of DC, this article will discuss where do we use AC or DC in different aspects.

Uses of Alternating Current:

Alternating Current (AC) has its benefits as well as drawbacks. There are different applications where AC is used over DC as per the requirement of operation.

Let’s discuss where do we use ac or dc, The following is where the AC power supply is used :

• Alternating current is generally used in industry for transmission and generation of electricity as the generation of alternating current (AC) is much easier than that of Direct Current (DC) for high voltages, as AC has better efficiency than DC.
• DC loses more power to heat relative to AC which causes a higher risk of producing fire, burning appliances, high-cost maintenance and complicated conversion between high voltage and low current to low voltage and high current in DC using Transformers, so in place of DC most industry prefers AC.
• In the household, there are many appliances that convert electrical energy into mechanical energy that devices use AC power supply such as dishwasher, refrigerator, washing machine, etc.
• The AC motor (uses AC as power supply) depends on the reversing magnetic field produced by alternating current. The DC motor requires brushes to make electrical contact with the moving coil. In contrast, an AC motor does not require it, which makes AC to operate AC motors easily.
• Generally, all kind of transformer uses AC supply as DC supply does not work with transformers. The DC Transformer is there but designing that kind of transformer is complicated than a regular transformer.
• AC induction motors are used for large-sized industrial Servo Motors, which often require variable frequency drives to allow control of their speed.
• High Voltage AC is more efficient than DC for sending electricity over a considerable distance; that is why high voltages from power plants are supplied to the home, which can be easily converted to required voltage or current by using a transformer.
• An induction motor or heater uses AC as supply; if DC supply is used in induction motor, commutator and brush will be required as extra part in motor, which will wear out very easily the motor. The need for the replacement of the brush or commutator will be very much frequent. Using the AC in the induction motor makes the overall cost less, the motor will last longer. Maintenance will not be required as a DC induction motor. As for induction heating, the heat is generated by Eddy current, which requires an alternating current eddy current that is not present in DC.
• The air conditioner uses AC as a supply instead of DC, and there is some air conditioner that uses DC, but that air conditioner has Limited power applications. Although the Air conditioner uses DC, the main supply is always an AC supply. The inverter of the Air conditioner converts the AC to DC then uses it.
• For home and residential applications, only a single-phase AC power supply is used. A three-phase AC supply is used as 3 phase supply for commercial and industrial facilities to accommodate high loads better. A single-phase AC supply is used when loads are lighting or heating, and a three-phase AC supply is used for large machines for electric motors.
• The power factor of 3 phase AC motors is high, which means they require less voltage for the load. The motor that uses a three-phase can start with only a power supply. It can even reverse its direction if needed, whereas the motor that uses a single-phase AC cannot start itself; they require an external power supply or device for starting it.
• Use of AC Motors is preferred for Air Conditioning compressor, power drives, hydraulic and irrigation pump etc.
• The airline industry uses AC as the main electrical power supply over DC supply. If needed, the AC will be converted to DC using a transformer rectifier unit for the airline. The engine-driven alternator supplies containers powered to AC essentials by an AC bus, where some large turboprops have both AC or DC generators.
• 3 phase synchronous motor is used for application which needs operating at constant speed such as air compressor motor-generator Rolling Mills paper and cement industry etc
• Single-phase synchronous motor is used in clocks teleprinters and every kind of timing device, recording instrument, sound recording and reproducing instrument.

Use of Direct Current:

Direct current also has its benefits as well as drawbacks. There are different applications where DC is used over AC because of its efficiency or the specific operation’s requirement.

Here are the following where DC supply is used :

• Different devices or appliances (mainly digital electronic appliances) at home use DC as a supply, such as a microwave oven, computer, phone, etc.
• DC has better transmission than AC due to laser losses in AC
• DC is mainly used with appliances that use batteries. Every charger adaptor used in our houses is a converter from AC to DC, such as phone chargers, flashlight chargers, televisions, computers, hybrid or electric verticals, etc.
• DC is generally used for long-distance transmission. As the transmission of AC power is very much Limited to short or medium range distance maximum distance, AC power cover is 800 km approximately.
• High voltage DC has better transmission than AC due to laser losses in AC.
• For local generation DC is much better than that of AC as conversion between AC to DC is expensive.
• Both rechargeable and non-rechargeable types of battery supplies are always DC rechargeable battery need DC for recharge.
• Currents generated from solar panels are the DC units of solar panels; an inverter is used to enable DC to AC conversion.
• Where stable speed torque or operation is required, the steady energy flow of DC is used for operation off Motors.
• DC motor is used for steel mill rolling equipment, paper machine, etc.
• Series DC motors are used for heavy-duty applications such as electric locomotives, lifts, cranes, Steel Rolling Mills etc.
• DC shunt motor is used for operating appliances or devices at constant speed such as vacuum cleaners, woodworking machines, conveyors, elevators, grinders, shafts, small printing presses etc.

In the AC system, voltage and current change their polarity and magnitude at a specific interval of time; the AC system is widely used because of its advantages.

This article will discuss the Ac circuit vs DC circuit, the advantages of AC over DC, etc.

Why is AC used over DC?

The use of DC is very much limited to some devices; for more significant scale generation, distribution, transmission, etc., AC is adopted. AC has been in use for ages.

Advantages of AC over DC:ong>

ACDCAC can be stepped down or stepped up easily using the various methods or by using Transformer as Transformer works for AC properly. Ac can be easily scaled to the desired level with very low energy loss.	DC cannot be stepped down or Step Up easily as the Transformer does not work appropriately with DC.
AC generation costs less than that of DC generation	Generation of DC is costlier than that of AC generation
AC can be converted easily into DC using a rectifier, filter, etc.	DC to AC converter is complicated.
AC devices or the motor which uses AC as a power source are economical, robust, and durable.	DC devices or instrument which uses DC as a power supply are costlier and less durable.
The maintenance cost of AC equipment or device is very much cost-effective	Maintenance of DC equipment or devices can cost much more than that of AC devices or types of equipment.
At high voltages, AC can be generated.	Due to commutation difficulty is a DC cannot be generated at high voltages.
Switchgear is simple for AC circuits.	Switchgear is complicated for DC. It required additional measures to work properly.
AC Transmission and distribution are economical as well as loss in AC power due to transmission is relatively lesser than that of DC transmission.	DC Transmission and distribution are costlier as well as loss in DC power due to transmission is relatively more than that of AC.
AC generator has high efficiency.	The DC generator is less efficient than that of an AC generator.
AC does not have to face much of electrolytic corrosion	DC has more Electrolytic corrosion
Arc generated in AC is lower in strength and can be self-extinguished as AC has zero crossing in its cycle.	Arc generated in DC is much stronger and cannot be self-extinguished as DC does not have any zero-crossing.
The AC Induction motor  is easy to use or maintain	The DC Induction motor, for proper working, requires a commutator, brushes, and switches.

Other Differences between AC and DC are:

AC Circuit vs DC Circuit:

AC	DC
An AC circuit current its direction (or polarity) and its magnitude periodically.	DC circuit current flows only in one direction; only magnitude can vary polarity of voltage, or current does not change with time.
AC signal has a specific frequency	DC does not have any specific frequency to define it.
The amplitude of the AC signal changes continuously.	The amplitude of DC can change, but polarity remains fixed.
AC cannot be used to directly for electroplating, electrolytic or electrochemical process	DC can be used directly for electroplating electrolytic or electrochemical process
AC Motor’s speed cannot be controlled easily	DC Motor’s speed can be controlled easily

Disadvantages of AC:

DC Circuit Breaker vs AC Circuit Breaker

A circuit breaker is a switching device designed to protect any circuit or device from getting damaged. Ac and dc circuit breakers are both used in the different electric circuits.

DC Circuit Breaker	AC Circuit Breaker
The DC circuit breaker uses a thermal protection principle where the overloaded current is slightly larger than that of the standard current for the highly overloaded magnetic protection principle.	The AC circuit breaker uses magnetic protection and thermal protection principles.
DC circuit breakers can be used to protect the main circuit or a single load that uses a DC source.	AC circuit breaker is used with a circuit or device that uses an AC source for power.
As in the DC circuit, the voltage is continuous, and the arc is constant, so it is difficult to disconnect from the circuit.	The AC circuit breaker easily gets disconnected from the circuit.
Extinguishing the arc is relatively poorer than the AC circuit breaker as DC does not have a zero-crossing point.	Extinguishing the arc is easy with an AC circuit breaker as ac has a zero-crossing point with every complete cycle.
The extinguishing device is mainly magnetic blowing type	The Arc extinguishing device is mainly grid type
AC circuit breaker cannot be used in place of DC circuit breaker	DC circuit breaker cannot be used in place of AC circuit breaker as AC voltage or current may have a different effect on the DC circuit breaker
DC circuit breaker needs extra Arc extinguishing measures as DC cannot be self-extinguished. DC needs to be extended, and additional mechanisms such as DC Arc can only be extinguished by cooling or mechanical introduction.	In AC Arc, interruption is easy as voltage and currents are not in steady-state, so the AC circuit arc is weaker than the DC circuit arc, so no additional measures are required.

This article shows an overall comparison between HDMI CEC vs ARC. CEC is the “Consumer Electronics Control,” a feature of HDMI that uses a single remote controller to control the HDMI cable connected devices.

We have learned already that HDMI ARC (Audio Return Channel) is also a particular function of HDMI. It is a port in the systems that allow high quality audio transmission. Both HDMI Arc and HDMI CEC use a single cable but for different purposes. Just like the name, HDMI CEC caters to the control of electronic devices.

What is CEC in HDMI?

As mentioned above, HDMI CEC is the abbreviation of Consumer Electronics Control. HDMI controlling devices are commonly known as CEC. A wide range of professional and consumer AV devices support this function.

Different electronic brands have given various names to CEC. For the brand Sony, it is “BraviaSync,”; for Philips, it is “Easylink,” for Samsung, “Anynet+, LG-“Simplink,” etc. All of these components work similarly, but one is not compatible with the other. HDMI CEC allows HDMI AV devices to communicate with each other.

What is the utility of CEC?

When we have to deal with multiple HDMI AV systems and manage them with an individual remote control, we can use the CEC feature. Besides passing video or audio, CEC helps all the devices to interconnect.

HDMI CEC establishes a back and forth connection between the TV and its HDMI joined peripherals. While the TV can control those devices, the devices also get some control over the TV. For example, we can control a gaming console through the TV remote. Similarly, the other systems can also change any TV input. 

Explain the differences between HDMI ARC and HDMI CEC.

Following are the major differences between HDMI CEC and HDMI Arc-

Parameter	HDMI Arc	HDMI CEC
Purpose	We use HDMI Arc or Audio Return Channel for better audio experience.	HDMI CEC eases the mutual control procedure between a device and its HDMI connected systems.
Method of usage	HDMI Arc is a special port in the primary device. We can connect the soundbar or speaker with it so that the main device sends the audio back to the soundbar or speaker and provides good quality sound.	If HDMI CEC is enabled in a component, it can control the devices connected to its HDMI port and vice-versa. Different brands have different methods to enable their CEC function.

Read more on…HDMI Vs HDMI Arc: Exhaustive Comparison and Detailed Facts and FAQs

HDMI CEC vs ARC- FAQs

Is HDMI ARC the same as HDMI CEC?

HDMI Arc and HDMI CEC are two separate entities. Arc is an enhanced function of HDMI technology. On the other hand, CEC or consumer electronics control is a single remote control for operating all HDMI systems. 

HDMI Arc ( Audio Return Channel ) is a specific port in HDMI TVs or other equipment that feeds the digital audio stream back to the soundbar. Thus we can play audio through an external sound system. CEC is a channel that controls input, power on and off, volume, play, pause, etc., in HDMI devices combined.

Does eARC need CEC?

HDMI eArc or enhanced Arc is an even better version of Arc technology. The latest 2.1 standard HDMI has the eArc function implemented in it. HDMI eArc provides greater speed and bandwidth for the best audio.

HDMI eArc relies on CEC to automate remote control commands. The HDMI eARC only supports the discovery and set-up of eArc link, lip-sync, etc., operations. HDMI eArc was made to skip volume control commands which CEC performs for better usability. So, to use an eArc device, we must enable CEC as it is part of Arc discovery. 

How can I set up HDMI Arc and CEC?

All the TV instruction manuals come with the setup process of CEC. We can use the TV remote and browse through the options to enable the CEC mode. Some TVs are by default set in CEC until we manually change them.

Every brand has a specific way to set the CEC function up. So we can not generalize the method. We can take the example of Samsung ( Anynet+) CEC here. Go to the Home screen through the remote, then to settings and select the “Anynet+” to turn it on. Finally, connect and turn on an HDMI device through a cable.  

Do all HDMI TVs need CEC?

CEC is a prevalent feature of TVs and other peripheral equipment. It allows two-way communication between the TV and the other devices connected to the TV’s HDMI port without the need for universal control.

CEC wiring is a must in modern TV sets , but optionally we can skip using it. There are many functions like one-touch play, one-touch record, routing control, deck control, system audio control etc. that can be done through CEC in TV. Though CEC can ease the usage, it is usually disabled by default. 

Does HDMI cable matter for CEC?

Consumer Electronics Control or CEC in HDMI equipment facilitates one stop control for all HDMI connected devices. It is just a special command that is independent of the HDMI cable.

CEC feature was first introduced in HDMI 1.0 and later updated in 1.3 standards. The CEC feature in HDMI is just used for the controlling purpose. It is implemented with TV remote settings. It has nothing to do with the cable. Any general HDMI cable works fine for CEC.

The transformer is an appliance that conveys electrical energy from one electrically isolated circuit to other electrically isolated circuit by way of a magnetic field medium without change in the frequency.

This article will discuss the different transformer examples in details.

Transformer Example as follows:

Instrument Transformer

An instrument transformer is a special transformer designed with high accuracy to measure, isolate or transform high-level current or voltage applications in a power system.

The primary winding (or coil) of the instrument transformer is directly linked to the high voltage or high current circuit, whereas the secondary winding (or coil) of the instrument transformer is linked to the instrument or meter.

Instrument Transformers can be classified into two types:

Potential transformer

A potential transformer is a type of instrumentation transformer designed to measure high voltage in a power system while using a standard low range voltmeter.

The primary winding (or coil) of the potential (or voltage) transformer has greater number of turns than that of the secondary winding (or coil), where the secondary winding is linked to a voltmeter. In potential transformer magnetic core with shell-type construction is used for better accuracy.

Application:

• Used to operate protective devices and relays.
• Used in synchronizing generators or devices with grid.
• Used while protecting feeders.
• Used in long power line carrier communication circuits.

Current Transformer

The Current Transformer is an example of a transformer designed to measure a high current in the power system, which can convert the primary current into the required secondary current.

In the current transformer, the primary winding has less number of turns than that of the secondary winding, whereas the wire used in the primary winding is is heavy wire. In contrast, the wire used in the secondary winding is a very fine (or thin) wire.

A low range of ammeter is connected in the secondary winding where the can be treated as short circuit because the internal resistance of the ammeter is negligible relative to the resistance of the secondary winding resulting current transformer is prepared for short circuit condition. Current Transformers secondary winding should not be left open because it can lose its calibration.

Application

• A current transformer is used for isolation between the measuring instrument and the high voltage power circuits, which ensures the operator’s safety with proper operation.
• A current transformer is used to measure current, which is very accurate within a specific current range.

Auto Transformer

Auto transformer is an example of a transformer that is predominantly used in applications where low voltage is required.

An auto transformer is a transformer that contains only one winding common to both primary and secondary circuits of the transformer.

Advantages of the auto transformer (over two separate winding transformers):

• Less amount of conductor and core material is required for construction
• Ohmic loss is reduced
• An auto transformer has powerful efficiency than two-winding transformers for the exact value of the input.
• The lower value of leakage impedance
• An auto transformer is low-priced relative to two winding transformers.

The main disadvantage of an auto transformer is that, unlike two separate winding transformers, here in an auto transformer, direct physical contact between the primary and the secondary circuit is there, which causes to Lost in electrical isolation between two sides. If electrical isolation is not required in the application, then the auto transformer is inexpensive to tie nearly equal voltages together. 

Applications:

Audio frequency Transformer

In the audio frequency span of 20 to 20000 Hz, a tiny iron core transformer is used, which is known as an Audio-frequency transformer.

Audio frequency Transformers can be used for communication, measurement, and control. It can be used in isolation, such as the output speaker being isolated from the input amplifier; in such a case, the primary and secondary winding ratio is 1:1.

 Audio frequency transformer is mainly used for 

• Impedance Matching.
• To step up or step down the voltage in the amplifier to obtain the required voltage gain.
• To increase or decrease the load impedance.

This device can be used as a bidirectional device, such as primary winding can be output winding and input winding, similarly the secondary winding can be operate as input or output winding.

An audio frequency transformer’s complete audio frequency range can be divided into three-part low-frequency, immediate, and high-frequency ranges.

Pulse Transformer

A pulse transformer is a transformer that operates with pulse form of voltage and current this type of transformer is commonly used in digital communication, radar, television, thyristor systems, etc.

The input of the pulse transformer is discontinuous or discrete in nature, where the pulse width can vary. An essential requirement of the transformer is that the input pulse to the primary circuit, after being transferred to the secondary circuit, can be reproduced accurately.

The Transformer analysis in Pulse transformer is carried out by dividing its solution into three parts. The first part gives the response for the front edge of the pulse, the second part gives the response for the flat top of the pulse, and the third part provides a reaction after the termination of the pulse.

The size of the pulse transformer is minimal. As primary and secondary winding have comparatively few turns resulting leakage inductance is minimum.

Rotary Transformer

The rotary transformer is the same as a two separate winding Transformer accept the geometry.

Rotatory Transformer is used to couple electrical signals between primary and secondary winding, which rotates concerning each other with negligible changes in electrical characteristics.

There can be three basic configurations of rotatory transformer: concentric cylindrical Axis configuration, face-to-face or pot core configuration, and the LT core configuration.

Parametric Transformer

Parametric Transformer was first described by Wanlass, et al. in 1968.

The parametric transformer is a special type of transformer that transfers power from primary to secondary without using mutual inductance coupling but by variation of the parameter in its magnetic circuit.

Linear variable differential transformer (LVDT)

The linear variable differential transformer is a class of transformer which is used for measuring position and displacement of an object under observation.

The linear variable differential transformer (LVDT) is an electromechanical instrument that responds to the linear motion (of an object) or position and convert it into a corresponding electrical signal.

Linear Variable Differential Transformer (LVDT) embodied of three coils, one primary coil and two secondary coils. The number of turns in both secondary coils is identical, and both secondary coils are connected in such a way that the output is the difference of voltage between two secondary coils.

LVDT (Linear Variable Differential Transformer) is known also as linear variable displacement transformer or differential transformer.

Rotary variable differential transformer (RVDT)

The rotary variable differential transformer (RVDT) is a class of transformer which responds on angular displacement or rotatory motion of an object under observation.

RVDT is similar to LVDT apart from the geometry design. The output of the RVDT is AC current equivalent (or relative) to the angular displacement of the object under observation.

RVDT has one primary coil and two secondary coils same as LVDT. The number of turns in both secondary coils of RVDT is identical. Both secondary coils are linked in such a way that the resulting voltage is the difference in voltage between both secondary coil’s voltage. But the geometric shape of RDVT Cam.

In this article, we’ll get to know How Does A HDMI Arc Adapter Work and the subsequent concepts. An HDMI Arc adapter is an interface between the Arc enabled devices and the devices that don’t support HDMI. 

Sometimes, we have two systems, out of which one does not support HDMI Arc. In that case, we need a third device that connects both the devices. These are called HDMI Arc adapters or audio extractors. The adapters arrange a conversion from HDMI input to RCA, coaxial cable, headphone jack, etc.

What are the necessary conditions of using an HDMI Arc adapter?

HDMI Arc adapters are multipurpose components that can convert one input to multiple outputs. But these adapters don’t work in every situation. Following are the constraints of using an HDMI Arc adapter-

• The soundbar or speakers of the TV supports only the optical(Toslink) port. In this case, we must choose an HDMI Arc adapter with optical output.
• The cable box also lacks the ports that the TV doesn’t have. Here, we don’t have any other option without the HDMI Arc adapter.
• The TV does not have an RCA connector. Then we need an HDMI Arc adapter or extractor with a 3.5 m.m. jack. 

What are some disadvantages of the HDMI Arc adapter?

While HDMI Arc adapters are cost-effective, easy to use, and cater to many functions, they have very few downsides as well. The primary issue is the sound quality that might not be as good as proper Arc connection. The other problems are-

• Mostly, HDMI Arc adapters are automatic but cheaper ones come with a manual switch. So, we need to flip the switch to operate the machine.
• Some HDMI Arc adapters have only one or two ports. We should never opt for those adapters without the optical and 3.5 m.m. jack.
• HDMI arc adapters need external power. Therefore, we have to use some extra cables.

How Does A HDMI Arc Adapter Work- FAQs

What does an HDMI ARC adapter do?

The HDMI Arc adapter basically adds a set of output audio ports onto the TV set. We can use this adapter with TV streaming devices, Blu-ray, Cable boxes, gaming consoles, etc. 

An HDMI Arc adapter can be handy when we want to use older sound systems with new HDMI components. Of course, the old systems can’t produce as good audio as the new ones. But it is good enough. This way, we can keep recycling electronic devices and avoid the hassle of buying new things every time.

How do I use an HDMI ARC adapter?

We are taking an example of the Avantree HDMI audio extractor here. Only the Toslink (optical) port on the adapter can work in this mode. Below mentioned steps are the ways of using the HDMI Arc adapter-

• Connect the converter to the power source.
• Take an HDMI cable and plug one end to the converter’s Arc port and the other end to the system’s Arc port. 
• Plug the external speaker into the Toslink output port on the adapter. 
• Click the Arc button. If the Arc indicator light turns green, then the job’s done.

Can I use HDMI ARC as a regular HDMI?

Seldom, our TV sets are labeled with “ARC” on the top of the HDMI port. ARC is an improved technology, and it refers to “Audio Return Channel.”. Arc helps in simplifying the system by sending the audio back to the TV.

All the HDMI cables can be utilized backward, i.e., we can use non-Arc ports. All HDMI cables are the same and perform similar functions. So if we plug in a generic HDMI cable to an HDMI Arc port, it will behave as regular HDMI. HDMI cables are all-in-one components that can switch in between standard HDMI and HDMI Arc.

Read more on…HDMI vs HDMI Arc: Exhaustive Comparison And Detailed Facts And FAQs

How do I know if my HDMI cable is ARC?

The cable is the same for regular HDMI or HDMI Arc. It is the ports that differ. If the HDMI port on the TV or the soundbar is marked with the “Arc” word printed on it, then we can identify the cable as an Arc cable. From 2009, most of the TVs have Arc port.

HDMI cables are just a specific type of wire. They don’t have any version or particular function such as Arc. Arc refers to the ports on the systems. HDMI cables come with standards such as 1.4, 2.0, or 2.1, etc. No cable is mainly designed for the “Arc” feature. We need to check if the TV port or the soundbar port is Arc enabled.

In this article, we are drawing a comparison of the regular HDMI vs HDMI Arc. HDMI Arc is the improved version of the generic HDMI cables that comes with additional features.

The key difference that separates HDMI and HDMI Arc is the transmission mode. HDMI cable only caters to video transmission while the HDMI Arc provides high quality audio transmission, similar to the working of an additional soundbar. Arc technology doesn’t require any new cable, it can be implemented upon any compatible HDMI.

What is HDMI? Explain

HDMI is abbreviated as “High Definition Media Interface”. It is one of the most preferred HD signal interfaces for transmitting both HD audio and video over just a single cable in commercial and home entertainment market.

We are able to connect a lot of devices such as TV, DVD, Bluray, Xbox, playstation and many more into our television through HDMI. In short, more and more AV devices can be connected through a simple effective HDMI cable. Even the corporate world is also moving towards HDMI for presentations, education, digital signage etc.

What is HDMI Arc? Explain

Often in new generation smart TVs, we can see a HDMI port written as “Arc”. This ARC is the abbreviation of Audio Return Channel. It is a newly launched protocol for HDMI devices. 

ARC accomplishes dual-way transmission of audio data via a single HDMI cable. The most important function of HDMI ARC is, it can send signals both upstream and downstream. Suppose, you want to watch the HD content of the OTT platforms on your smart TV. You can set up the TV and the soundbar with a single arc cable.

Draw a comparison between HDMI and HDMI Arc

Following are the major differences between regular HDMI and HDMI Arc-

Parameter	HDMI	HDMI Arc
Mode of Transmission	It is suitable for videos.	It is best suited for audio and video
Connectivity	It cannot feed the audio back to the origin.	It can work like a two-way audio transmitter cable.
Cable requirement	Regular HDMI set-up requires more than one cable for overall connection.	HDMI Arc cable is a single multipurpose cable that can pair with soundbar also.
Cost	The cost of HDMI is average.	HDMI Arc is very costly due to its improved features.

Read more about D flip flop Types

HDMI Vs HDMI Arc-FAQs

Is HDMI and HDMI ARC the same?

HDMI is the cable whereas Arc is a port or adapter. Both of the technologies require a HDMI cable in the first place. The Arc port is differently designed.

Nowadays, most of the HDMI cables are Arc-enabled. “High speed” printed HDMI cables generally support Arc function. If the HDMI port is labelled as “Arc” then we can identify it. If we connect a non-arc HDMI cable in Arc port, it acts as generic HDMI. 

Are all HDMI ports HDMI ARC?

Recently, all the HDMI ports come with Arc compatibility. But, we must read the user guide thoroughly to know if a particular device is Arc-enabled or not.

The use of HDMI Arc minimizes the need of using an extra optical cable for transmitting audio downstream. All HDMI ports are not Arc supported. We should also keep in mind that we cannot use any external device to convert regular HDMI to HDMI Arc. 

Do I need HDMI ARC for soundbar?

HDMI Arc is a very useful tool for making a home theatre like audio system using only one cable. The TV and the soundbar both must contain Arc compatible HDMI jack.

Through the HDMI arc soundbar, we can adjust the volume with our TV remote itself. For this set-up, we connect one end of the HDMI Arc cable to the TV port and the other end to the port of the soundbar. Thus we can establish the connection. While HDMI Arc is not a compulsory feature for the soundbar, it improves the sound quality.

Does HDMI ARC sound better?

HDMI Arc is regarded as the best option for high quality audio. Though optical cables provide satisfactory sound, HDMI Arc can be an even better choice for quality and minimized cable connection.

Still now most of the TVs use optical cables for sound transmission. But, if we want to hear top notch sound, we can use HDMI Arc. Also, some technologies like Dolby Digital Plus, DTS HD, True HD etc. don’t support optical cable. Only Arc can cater to the purpose. HDMI Arc supports every possible virtual audio format and sounds better than all.

Can The HDMI ARC Output On My TV Be Used As Normal HDMI?

We can definitely use HDMI Arc output on the TV as a generic HDMI. By connecting a simple HDMI cable into the Arc jack, we can make it function like the regular HDMI.

Sometimes any of the TV or the soundbar isn’t HDMI Arc enabled. In that case, we cannot get an Arc connection. In that case, if we connect normal HDMI cable in the Arc port, though it cannot provide high quality arc-like audio, it can yield regular sound. But we can not get an Arc facility with normal HDMI.

VGA and HDMI are both display interfaces. Nowadays, HDMI is widely in use, where VGA is used in limited applications as VGA is the oldest display interface. 

This article will discuss the comparison between VGA vs HDMI in a detailed manner.

VGA HDMI Comparison:

VGA is the oldest display interface, and HDMI is one of the latest display interfaces, so lets compare these two technologies:

HDMI vs VGA quality

HDMI can transfer eight channels of uncompressed or compressed digital audio simultaneously

The quality of HDMI is better than that of VGA because HDMI uses an uncompressed or compressed digital signal. In contrast, VGA uses an analog signal, which creates a significant difference in quality.

Since HDMI uses an uncompressed connection, HDMI is independent of the various digital standards used by individual devices. It can carry high-quality multi-channel audio data and can carry all standard videos. HDMI is capable of carrying control and Status information in both directions, and as modern devices use digital signals, HDMI is easily compatible with them. HDMI allows managing pixel by pixel the native resolution of the screen with whatever the source devices.

VGA vs HDMI gaming

High-resolution and high refresh rates, all frame rates are required for a quality gaming experience for modern gaming.

The standard VGA is limited to 640 X 480 resolution and refresh rate of 60 Hz, which is not very much suitable with modern gaming standards. In contrast, the maximum resolution HDMI can attain 8K with a 120 Hz refresh rate which is very much ideal for every modern gaming experience.

Although the cables do not limit the refresh rate or resolution, they can be restricted by the source or connectors used. As HDMI is comfortable with digital devices, it is preferred over VGA because VGA Uses an analog interface which seems outdated nowadays. Only limited devices use an analog signal, so if it is not necessary to use VGA, always go for HDMI for gaming.

VGA vs HDMI resolution

HDMI was introduced in 2002 to improve existing connectivity standards by creating more miniature and better connectors which can summon tenuously transmit digital video and audio signals.

The standard VGA 640 X 480 resolution with 60 Hz refresh rate, whereas with a different version of HDMI, it can go up to 8K resolution with 240 refresh rate.

VGA’s maximum resolution can attend up to 2048 X 1536, but VGA does not prefer HDMI for high-resolution.

VGA vs HDMI cable

Resolution and refresh rates are not limited to the cable but are determined by the source or device.

The quality of HDMI cables is much better than that of VGA cables, as VGA requires separate cables for audio and video, where HDMI can transfer audio and video simultaneously. HDMI cable is capable of up to 8 compressed or uncompressed digital audio channels, along with Consumer Electronic Control (CEC). 

The data in the VGA signal is analogous, so loss in data or interference in this type of signal is easy. With an increase in the length of the wire, the quality of the signal decreases. VGA Analogue data signal is also prone to noise and interference. HDMI uses transmission minimized differential signaling (TMPS), which can convert A picture automatically into the most appropriate format such as 16:9 or 4:3.

HDMI cable has16 wires that are wrapped in a single cable and carry a bandwidth of 5gbps. HDMI carries high-quality multi-channel audio data and can carry all standard formate of video. HDMI has three different channels for communication such as Display Data Channel (DDC), Transition-minimized differential signaling (TMDS) and Consumer Electronics Control (CEC).

Does VGA to HDMI reduce quality

VGA to HDMI converter is more expensive than the price of the VGA cable.

As the signal in VGA is analog and signal in HDMI Digital, when the conversion of the signal takes place, some loss of Signal quality happens, which can also introduce noise in the Signal.

During the conversion from VGA to HDMI, the analog signal is converted into a digital signal (using analog to digital converter), and running the VGA signal directly into an HDMI connector can cause damage. The connector as an analog signal has a higher voltage level, so a scaler or converter is required, which will take the VGA analog signal and audio signal to convert them into a digital signal (using digital to analog converter), which can be sent out to HDMI cable for connection.

Why does VGA to HDMI not work

Convert the signal between VGA and HDMI using a converter chip, where the converter chip is either designed to convert a VGA signal to HDMI or HDMI signal to VGA signal.

VGA to HDMI converter is not working causes can be:

• The problem with the connector or port.
• The malfunctioning signal from VGA to HDMI.
• Check the power supply of the converter as VGA to HDMI converter requires external power for processing.
• Check connection or lose connections.
• Bad quality display can be caused by incorrect interference with the cable or faulty connector.
• Restart the device after connecting as VGA is required to restart for better compatibility with the device.
• New cables can be covered with a plastic cap so remove the plastic cap before using it.

Can VGA do 1080p 144Hz

Nowadays, only the older version of devices uses VGA port; otherwise, the newer ones use DisplayPort or HDMI.

VGA is not recommended for 1080p 144Hz, as it can adequately work till 1080p with a 60 Hz refresh rate, when the refresh rate increases beyond 60 Hz resolution decreases.

Original VGA cable can have a maximum resolution of 640 X 480 with a refresh rate of 60Hz; nowadays, 1080p is possible with VGA. The maximum resolution of VGA can be limited by signal source refresh rate also depends upon the signal source and display different modern connectors can easily achieve 1080p with 144 Hz.

Is HDMI better than VGA for 1080p

HDMI carries a digital signal where VGA has an analog signal that causes a significant difference between both the signals.

HDMI is recommended over for 1080p as VGA carries analog signal where HDMI carries digital in VGA at 1080p refresh rate is limited to 75 Hz at most, whereas with different versions of HDMI 240hz frequency rate can be achieved with 1080p resolution.

Standard VGA has a maximum resolution of up to 640 X 480, but with the latest technology, it is capable of 1080p. Still, the resolution and frequency rate can be limited due to the signal source or display.

Is HDMI sharper than VGA

Currently, HDMI is used with most devices as devices are compatible with digital signals, where is the use of VGA is very much limited.

HDMI has sharp images or videos, then VGA for higher resolution.

HDMI uses a digital interface that is able to carry video and audio 17 easily as HDMI uses digital signal which has many advantages over analog signal practically the difference in image quality is unnoticeable between HDMI and VGA. As VGA uses an analog signal, which can decrease image quality during transmission or conversion of the signal, noise or interference may occur incorrect translation of level may happen, as the length increases, the quality of signal decreases. The difference in quality VGA and HDMI is noticeable for higher resolution.

Can a VGA cable affect screen resolution

Connectors have 15 pins for VGA cable and VGA cables require separate cables for video and audio transmission. The source and quality of the cable can control the resolution of VGA.

Analog signal is not much immune to external noise, flickering, interference, etc. And with an increase in the distance, the quality of the signal degraded, which affects the overall resolution. Using a better quality VGA cable with a covering minimum length as possible may reduce noise and interference.

Do I need both VGA and HDMI?

VGA uses analog interference, whereas HDMI uses digital interference.

Display devices cannot use VGA and HDMI simultaneously, but display devices can change or switch between the cables if required.

Generally, VGA and HDMI are not required simultaneously. VGA is the oldest interface with display. The devices which still use the VGA port are very much limited, where the HDMI port is widely in use.

How can I increase my VGA resolution?

The standard VGA resolution is very much limited; it doesn’t support high-definition images or video.

HDMI to VGA converter or adaptor can be used to get better resolution from the source for a better and sharper image or video for VGA connector.

HDMI uses digital signal and can carry both audio and video conversion of HDMI to VGA converter will not improve the quality of the original signal, but for better transmission HDMI cable can be used instead of VGA cables. If Required but with HDMI converter will be needed, which will increase the overall expenditure.

Do monitors need a VGA cable

VGA is the oldest display interface, introduced by IBM in 1987.

Only an older version of monitors or devices have a VGA connector so the VGA cable can only be used for only older monitors or devices.

As VGA cable is much more intensive than other cables, it can be used when the budget is limited but not recommended with converters as the converter is more expensive than that of the VGA cable. If any device has an HDMI port, use an HDMI cable. If any device has a VGA port, then only use a VGA cable because using a converter also reduces the quality of the signal and using a converter increases the overall expenditure.

Does VGA to HDMI adapter work

HDMI adapter is used to convert the analog VGA signal into a digital HDMI signal.

If all the connections are correctly connected to the eye doctor and from the adapter, then the adaptor should work properly if their adapter is not faulty.

Does VGA affect gaming

VGA uses separate cables for audio and video. It cannot transfer video and audio simultaneously through a single cable.

The slandered version of VGA is limited to 640 X 480 resolution with a 60 Hz refresh rate, which is not suitable for modern gaming standards. With many different versions of VGA, it can extend up to 1080p with a 60 Hz to 75 HZ refresh rate, which can limit the use of VGA in gaming.

VGA can affect the quality and can get interference, on lower quality of VGA cables and the image quality also may get affected. Several devices that produce or use analog signals had different refresh rates with different resolutions, the processor of the device must be able to process it as VGA cable does not limit the resolution or reference rate these are mainly limited by the source, but with higher refresh rate then limit can degrade the image quality.

Does VGA cause lag

More components or converters are connected in the path of the signal, and more lag is added to the signal as every component causes some degree of delay.

VGA has a relatively lower leg than HDMI because the VGA signal does not apply post-processing on the input.