A question about the power supply to a computer monitor??

Hello. The configuration you're going to change to must be used to play games, as you can see from your graphics card** much higher than the CPU. Playing the game doesn't have to be as practical, unless you're trying to play Gears of War and Command & Conquer 3 with some of the game effects and smooth.

It is recommended to lower the configuration a little and save money to buy a monitor.

By the way, I want to tell you one thing, HD3870 is such a good graphics card, it must not have a VGA interface, generally high-end graphics cards use dual DVI output, even if you solve the power supply problem, your monitor still can't be used on your new host. Although there is a DVI dedicated VGA converter head, but the effect after conversion... Don't dare to compliment.,With such a good host.,And the picture is a shrunken picture after conversion.。。。

Can you accept it? Contrary to your original intention of matching a powerful host.

And now there is no theory that CRT is better than liquid crystal, and now liquid crystal has long been completely free of dragging. By the way, don't buy AOC, if you buy AOC monitors, it's better for you to just throw the money into the river.

It's okay if you don't work with large files, but if you want to use large 3D, it's a bit of a stretch.

The built-in power supply of the monitor is that there is a power supply inside the display, that is, the power supply such as an external transformer regulator is loaded inside the display, usually 220W.

Additional knowledge of the display.

The display refresh rate is the number of times a picture is repeated per second, measured in hertz. The average human eye has little flicker at a refresh rate above 75 Hz, and no flicker at all above 85 Hz. The refresh rate of a normal color TV is only 50 Hz, and the minimum refresh rate that a computer can output to a monitor is currently 60 Hz.

It is recommended to use a refresh rate of 85 Hz or 75 Hz. Because when the display is in the limit state, it is easy to cause the aging of circuit components and cause damage. So don't set the refresh rate at the highest limit of the display, it should be slightly lower than its maximum refresh rate.

Hello:——1,There are two forms of power supply for the display: one is powered by an external adapter, and the other is with its own power supply, which can work normally by directly entering the 220 V AC power supply.

Earlier CRT CRT CRT monitors had a built-in power supply. In order to reduce the thickness and heat generated by the display, some liquid crystal displays now put the power supply outside, which is the external power display. But there are also many power supplies for displays, which are installed in the body of the monitor, which is the built-in power supply of the display.

The number "W" on the display nameplate is the power consumption of the display. It's easy to tell the difference between internal and external power supplies: the built-in power display is AC 220 V input, while the external power supply input is a power adapter plug.

It is the built-in power supply [rectification] inside the display itself, and the 220V mains AC is directly entered; No more power adapters!

What brand of monitor will have a built-in power supply? Never heard of it!

The host power supply can power the display, but it is not recommended.

The host has an socket (in fact, it is a power supply) to supply power to the display, in order to synchronize the power supply of the display when it is turned off and turned on, mainly because it is easy to use and has no other functions. This socket also transmits 220V power supply, which is the mains power. You can change the power cord of a monitor and plug it directly into 220V, so there is no need to bring a power box.

The power supply voltage of the LCD tube: depending on the specific model, the voltage is definitely not the same, there is no way to say the specific, the voltage of the LCD tube is generally about 1000-3000 volts; The starting voltage of the lamp is above 1000V, and the voltage is maintained between 600-800 after stabilization, and the voltage is of course AC; The lamp itself is high-pressure co-feeding. Depending on the size, the voltage amplitude is also different, generally in the range of several thousand volts.

The DC voltage for the high-voltage circuit is generally 12V and 5V, and there are a few of them; There are many kinds of displays, and in terms of display mode, there are also CRT picture tube displays, liquid crystal monitors, and so on. Even the power supply voltage of the display produced by the same manufacturer is not the same, so there is no specific manufacturer and model, and it is difficult to tell how many volts the power supply voltage of the display is. Generally, the output voltage of the main power supply of CRT display is 110-130V, and there are voltages such as 12V and 25V.

Most of the power supply output voltages of LCD monitors are 12V, 24V, etc. In the liquid crystal display, there are three high-voltage parts: the 220V mains part.

22V mains is AC voltage, which is the most used by us in daily life. 300V DC high voltage after 220V rectification filtering. In order to meet the needs of the operating conditions of the back LCD lamp, the output voltage is about 1000V DC after passing through the booster plate.

The DC high voltage of about 1000V is an instantaneous voltage, and the voltage will gradually drop back to about 600V when the LCD lamp is lit normally. The high-voltage board or driver board that interfaces the 6-wire interface is universal. The first and second are 12 volts.

The third line is the control (switch screen) line, which is on when there is 5 volts of electricity and off when there is no electricity. The fourth line is to adjust the brightness of the screen (light). The fifth is connected to the sixth ground wire, but 12 volts of negative electricity is used.

Generally, it is 3 wires, with 1 and 6 wires 12 volts, and 3 wires to control electricity. The switch screen has a little better, 4 lines with brightness, and the display manufacturer does not save materials in a better way. The LCD is a small backlit tube lit by a high-voltage plate, which consumes electricity and generates heat.

LED is a group of 3 LED lamp beads that are constantly lit, which is power-saving and durable, and has a little less radiation. The power supply that needs to be supplied by an external adapter is generally 12V, and the DC-DC circuit on the driver board converts the voltage required by each part of the driver board, and the power supply with the built-in power board is generally 5V.

CRT display: the power supply voltage is usually fixed 220V AC or 110V AC - usually not made into a wide voltage adaptation range type internal circuit supply voltage is usually divided into 12V, 5V, 110V, 180V multiple groups, focusing and accelerating voltages are about 7000V and 25KV respectively. The power supply voltage of LCD display is usually 100-240V AC wide voltage range adapter (or internal power converter), the voltage is usually 12V and then converted to obtain 12V, 5V main voltage, LCD high-voltage part is 400-1600V voltage, low-voltage part can be directly measured, high-voltage part should be measured with special equipment.

CCF backlight, high frequency and high voltage, starting voltage 1500 1800V, working voltage 600 backlight, DC low voltage and high current.

Depending on the specific model, the voltage is definitely not the same, there is no way to say the specific, the LCD tube voltage is generally about 1000-3000 volts, if it exceeds the display withstand voltage, it will burn off. If you have to connect it, it is recommended to use a current-limiting resistor or add a fuse that is close to the maximum current of the display (converted to the power consumption of the display) to ensure the safety point. It depends on the power supply voltage range of the monitor, if the display works between 5-12V, you can directly use 12V.

The working voltage of the monitor is 5V, and the display will be burned out if you use the 12V power supply directly. The working voltage of the monitor is 5V, and the display will be burned out if you use the 12V power supply directly.

Rely on the interface on the motherboard to supply power to the backlight board.

1: The graphics card is responsible for sending the displayed information to the screen, and the screen line is the channel for information;

2: The backlight board is responsible for converting the direct current sent by the motherboard into alternating current, so as to use the AC high voltage to light up the backlight tube and provide the backlight. The principle is the same as that of a fluorescent tube for daily use, and the backlight plate is equivalent to the rectifier of the fluorescent lamp, but of course there is more than that.

3: The screen can be directly displayed on the screen after receiving the information signal sent by the graphics card, and the backlight will light up the entire background to provide a light source and shine into our eyes, so as to see the information.

4: There are some backlight boards that take the working mode of sending the backlight first and then sending the information signal, and there are some just the opposite, which is to send the information signal first and then send the backlight, the former is the so-called screen flash "fault", because it first sends the backlight and then sends the information, resulting in the white light flashing first, and then seeing the information, which causes the screen to flash, in fact, this is not a fault, this is a normal phenomenon, if the time gap between the signal and the backlight is controlled very short, this flickering will not be felt. In the latter way, the information is already displayed on the screen at the same time as the backlight is sent, and as soon as there is a backlight, the information can be seen immediately, so it feels like there is no flicker.

The first is that after the graphics card on the motherboard is working properly, a signal will be sent to turn on and off the power supply to the display. The notebook motherboard and display circuit are connected by screen cables, which contain power supply cables, signal cables, ground wires, etc.

The power supply of the notebook is at the motherboard, and the motherboard and the monitor are powered by the connection cable in the center of the roller, thank you!

Panasonic Corporation has introduced the unique switch controller LM3485, which is used in power management of displays, notebook computers, and information devices. It enables equipment with a wide range of pressure drops to be adjusted without compensation. Its easy-to-use hysteresis pulse frequency modulation rectification topology provides efficient voltage drop conversion over a wide range of loads.

This won't have much of an impact, as long as the source is a 220V power supply.

Today's displays are powered by independent connections, with 220 volts of power.

Old-fashioned power supplies will have interfaces that output power to the display, one input and one output.

Connecting to this is the same as connecting directly to a separate socket and does not cause instability.

Some power supplies have output ports, you can bring a monitor, since there is an output power supply, this design has little impact on the display.

As long as the power supply can afford it, there is no impact on the display.

Computer monitor discharge refers to the release of static electricity or electrical charges from the monitor, which usually results in a brief black screen of the computer monitor and, in the most severe cases, may cause the monitor to not function properly. So, what causes a computer monitor to discharge?

1.Dry Environment: If your environment is very dry (not lower than 30% humidity) sailing, there is a risk that the monitor will discharge. This is because dry air can lead to the generation of static electricity.

2.Poor monitor heat dissipation: Overheated displays can also lead to static electricity. If you use your computer for a long time and don't pay attention to the heat dissipation of your monitor, the static electricity generated on your monitor will also increase.

3.Static build-up: Static electricity build-up can also be caused by the constant contact of your hands or body with the monitor while using it. When you move away from the monitor, the static electricity that builds up is quickly released.

4.Cleaning of the monitor: If there is a large amount of dust and fine particles on the monitor, it may also cause the monitor to discharge. This is because friction between dust and particulate matter can also lead to the generation of static electricity.

5.Computer system failure: In the event of a computer system failure, it may also cause the monitor to discharge. This is usually due to a system failure that causes the CPU to overheat or other hardware failures, causing the display to also generate static electricity.

In short, to avoid the discharge of the monitor, you can do the following: maintain the humidity of the environment, ensure that the heat dissipation of the monitor is good, clean the monitor regularly, avoid direct contact with the monitor when using the computer, and avoid computer system failures as much as possible.

Generally speaking, the power supply of the display is not connected to the main unit, which will increase the burden on the power supply, so it is generally coming.

It is said that the display is powered separately

You see, your problem is that you haven't removed the power supply!

In fact, the host power supply is not to supply power to the display, there are two plug-ins on the computer power supply, one is the power input, the other is the output, the actual internal is to divide the input 220V electricity into two ways, one is connected to the output port, one way through the switching power supply transformer - to supply power to the internal components of the host, so even if the display is connected to the host, the power after the power treatment can not be supplied to the display!

As for the second question,The current host + LCD + speakers are basically around 300, but if it's a flat monitor,It's definitely more than 300,The specific configuration is related to the configuration of different computers,The power of different configurations is different!

First question:

There are two ways to power the display:

1. Separate power supply.

2. Power supply through the host.

So you're all right, different machines have different ways of supplying power.

Second question:

1. When the display is powered by the host, the monitor and the host are connected in parallel, so the power of the host will not be increased.

2. The audio is all active audio, that is to say, the audio has its own power amplifier, so it will not increase the power of the host.

Finally, the host monitor speaker will not exceed 300W