WO2011006296A1

WO2011006296A1 - Control circuit for eliminating standby power consumption of computer power source

Info

Publication number: WO2011006296A1
Application number: PCT/CN2009/072778
Authority: WO
Inventors: 霍为民; 眭海燕
Original assignee: Huo Weimin; Sui Haiyan
Priority date: 2009-07-15
Filing date: 2009-07-15
Publication date: 2011-01-20
Also published as: CN202795224U

Abstract

A control circuit for eliminating the standby power consumption of a computer power source includes: a control unit, a computer power source indicator connecting unit or/and an input current sensor of the computer power source, a computer on/off button connecting unit, an on/off unit of the computer power source, a power supply unit. The control circuit for eliminating the standby power consumption of the computer power source of this invention determines if the computer system is shut down through detecting the computer power source indicator or/and the input current value of the computer power source, and turns off the computer power source when the system is shut down; determines if the computer is needed to turn on through detecting the computer's on/off button under the state of shutdown, and turns on the computer's power source when it is needed to boot up, and sends a turning on signal to the computer on/off button port to boot up the system after the preheating of the power source is completed so as to realize eliminating the standby power consumption of the computer power source. The circuit only needs to maintain the operations of the circuits with low power consumption such as the control unit and so on, whose own power consumption is obvious lower than the limit of the computer power source's own power consumption such that effectively reduces the standby power consumption of the computer power source.

Description

Control circuit for eliminating standby power consumption of computer power supply

[1] Technical field

[2] The present invention relates to a power supply for a computer, and more particularly to a control circuit for eliminating standby power consumption of a computer power supply.

[3] Background Art

[4] The standby power consumption of the computer power supply refers to the power consumption of the computer power supply after the computer is turned off after the operating system is turned off, or the computer power input is not turned off. The power consumption of electricity. Eliminate the standby power consumption of computer power, save energy and protect the environment. The easiest way to eliminate the power consumption of the computer's power supply is to manually turn off its power input or turn off its input power, but because some computers do not have power input, or because the power input is installed on the back of the computer, and its input The power supply is also placed in an inaccessible location, which is not easy to do. Therefore, the existing way to reduce the standby power consumption of such electrical appliances is achieved by improving the power circuit design and reducing the power consumption of the device to reduce the basic power consumption of the computer power supply. However, to reduce the power consumption of the computer motherboard in the off state, it is extremely difficult to do because of the electrical characteristics of the central processing unit CPU and its peripheral circuits.

[5] Summary of the invention

[6] The present invention is directed to solving the above problems, and provides a method for performing real-time detection by whether a computer system enters a shutdown state and whether a downtime is required; and when the computer system enters a shutdown state, the computer power is turned off, and the computer system needs The control circuit that removes the computer power supply and transmits the down signal to the computer system to enable the system to eliminate the standby power consumption of the computer power supply. Since this circuit only needs to maintain low-power circuits such as control units, its own power consumption can be significantly lower than the standby power consumption of computer power supplies. In the actual test, the power consumption of this circuit is less than 20 mW, which can be reduced by up to 99% compared with the standby power consumption of the existing computer power supply of 2.5 to 8 watts, thus effectively reducing the standby power consumption of the computer power supply. .

[7] In order to achieve the above object, a control circuit for eliminating standby power consumption of a computer power supply is provided, which is characterized in that it comprises:

[8] a control unit consisting of a control chip and its peripheral circuits; and a computer power indicator connection unit connected to the control unit, the computer power indicator, and the computer power indicator port; and a computer幵 Shutdown button connection unit (which is connected with the control unit, computer 幵 shutdown button, computer 幵 shutdown button port; and a computer power supply ; unit; it is connected with the control unit, computer power; And a power supply unit that is connected to an external power supply to power the entire control circuit.

[9] The computer power indicator light connecting unit, which is a control unit for detecting the working state of the computer system; the computer power indicator light is continuously lit, the computer system is down; the computer power indicator light is blinking, the computer system is standby; the computer The power indicator is continuously turned off, the computer system is hibernating or shut down

[10] The computer power indicator light connecting unit, when the DC low voltage end of the control circuit and the computer DC The low-voltage end is common, the computer power indicator connection unit is a direct electrical connection; when the DC low-voltage end of the control circuit is not shared with the DC low-voltage end of the computer, the computer power indicator connection unit is used for isolating and transmitting signals. Circuit, capacitor circuit or mutual inductance circuit.

[11] The computer switch machine button connecting unit is used by the control unit to detect whether the computer switch button is pressed; when the computer is turned off, when the computer switch button is pressed, it is determined that the computer needs The power-on signal is turned on by the switch unit of the computer power supply; and the key-on signal of the computer switch-on button is transmitted to the computer switch-on button port through the computer switch-on button connection unit after the computer power is turned on and warmed up. To turn on the computer system

[12] The computer switch button connecting unit, when the DC low voltage end of the control circuit and the DC low voltage end of the computer are co-located, the computer switch machine button connecting unit is directly electrically connected; when the DC low voltage end of the control circuit is connected with the computer DC The low-voltage end is not common, and the computer switch-on button connection unit is a photoelectric coupling circuit, a capacitor circuit or a mutual inductance circuit for isolating and transmitting signals.

[13] The switching unit of the computer power supply is used to turn off the computer power after the computer system is turned off.

, Turn on the computer after you need to turn it on.

[14] The switching unit of the computer power supply passes through an external power input circuit that turns on or off the computer power supply, or a DC circuit that is rectified by turning on or off the computer power supply, or a DC circuit that is filtered by turning on or off the computer power supply. Or turning the computer power on or off by turning on or off the power supply circuit of the computer power control chip; the switching device used by the switching unit of the computer power source is a relay, a thyristor, a crystal switching device, or a one-way crystal switching device and a bridge Rectifier circuit.

[15] The switching unit of the computer power supply has an independent power supply circuit to provide a driving current for the switching device to be turned on, and the power supply circuit is also turned off when the switching device is turned off.

[16] In order to achieve the above object, a control circuit for eliminating standby power consumption of a computer power supply is provided, which is characterized in that it includes:

[17] a control unit consisting of a control chip and its peripheral circuits; and a computing power input current sensor connected to the control unit, the computer power supply; and a computer switch button connection unit, The control unit, the computer switch button, the computer switch button port are connected; and a computer power switch unit; the computer is connected to the control unit and the computer power supply; and the power supply unit is connected to the external power source. Power the entire control circuit.

[18] The computer power input current sensor is used by the control unit to detect the input current value of the computer power supply; the control unit monitors whether the computer power input current value is reduced to the system shutdown 吋 input current value through the computer power input current sensor. Within the scope, if yes, determine that the computer system is shut down. The computer power input current sensor is an AC transformer or resistor connected to the computer's power input loop.

[19] The computer switch machine button connecting unit, which is a control unit for detecting whether the computer switch button is pressed; when the computer is turned off, when the computer switch button is pressed, determining that the computer needs Turn on the power; the control unit will turn on the computer power through the switch unit of the computer power; and after the computer power is turned on and warmed up, the computer is connected through the computer switch button The button start signal of the switch button is transmitted to the computer switch button port to turn on the computer system

[20] The computer switch machine button connecting unit, when the DC low voltage end of the control circuit and the computer DC low voltage end are common, the computer switch machine button connecting unit is directly electrically connected; when the control circuit DC low voltage end and the computer DC The low-voltage end is not common, and the computer switch-on button connection unit is a photoelectric coupling circuit, a capacitor circuit or a mutual inductance circuit for isolating and transmitting signals.

[21] The computer power switch unit is used to turn off the computer power after the computer system is turned off.

, Turn on the computer after you need to turn it on.

[22] The switching unit of the computer power supply passes through an external power input circuit that turns on or off the computer power supply, or a DC circuit that is rectified by turning on or off the computer power supply, or a DC circuit that is filtered by turning on or off the computer power supply. Or turning the computer power on or off by turning on or off the power supply circuit of the computer power control chip; the switching device used by the switching unit of the computer power source is a relay, a thyristor, a crystal switching device, or a one-way crystal switching device and a bridge Rectifier circuit.

[23] The switching unit of the computer power supply has an independent power supply circuit to provide a driving current for the switching device to be turned on, and the power supply circuit is also turned off when the switching device is turned off.

[24] In order to achieve the above object, a control circuit for eliminating standby power consumption of a computer power supply is provided, which is characterized in that it includes:

[25] A control unit consisting of a control chip and its peripheral circuits; and a computer power indicator connection unit connected to the control unit, the computer power indicator, and the computer power indicator port; and a calculation a power input current sensor, which is connected to the control unit and the computer power supply; and a computer switch button connecting unit, which is connected with the control unit, the computer switch button, the computer switch button port; a switching unit of the computer power; it is connected to the control unit and the computer power; and a switching unit of the computer power; it is connected to the control unit and the computer power; and the power supply unit is connected to the external power supply , powering the entire control circuit.

[26] The computer power indicator light connecting unit, which is a control unit for detecting the working state of the computer system; the computer power indicator light is continuously lit, the computer system is turned on; the computer power indicator light is blinking, the computer system is standby; the computer power source The indicator light is continuously turned off, the computer system is hibernating or shut down.

[27] The computer power indicator light connecting unit, when the DC low voltage end of the control circuit is co-located with the DC low voltage end of the computer, the computer power indicator light connecting unit is directly electrically connected; when the DC low voltage end of the control circuit is connected with the computer DC The low-voltage end is not connected to the ground. The computer power indicator connection unit is a photoelectric coupling circuit, a capacitor circuit or a mutual inductance circuit for isolating and transmitting signals.

[28] The computer power input current sensor is used by the control unit to detect the input current value of the computer power supply; the control unit monitors whether the computer power input current value is reduced to the system shutdown 吋 input current value through the computer power input current sensor. Within the scope, if yes, determine that the computer system is shut down. The computer power input current sensor is an AC transformer or resistor connected to the computer power input circuit. [29] The computer switch machine button connecting unit, which is a control unit for detecting whether the computer switch button is pressed; when the computer is turned off, when the computer switch button is pressed, determining that the computer needs The power-on signal is turned on by the switch unit of the computer power supply; and the key-on signal of the computer switch-on button is transmitted to the computer switch-on button port through the computer switch-on button connection unit after the computer power is turned on and warmed up. To turn on the computer system

[30] The computer switch machine button connecting unit, when the DC low voltage end of the control circuit is co-located with the computer DC low voltage end, the computer switch machine button connecting unit is directly electrically connected; when the control circuit DC low voltage end and the computer DC The low-voltage end is not common, and the computer switch-on button connection unit is a photoelectric coupling circuit, a capacitor circuit or a mutual inductance circuit for isolating and transmitting signals.

[31] The computer power switch unit is used to turn off the computer power after the computer system is shut down

, after turning on the computer, you need to turn on the computer;

[32] The switching unit of the computer power supply passes through an external power input circuit that turns on or off the computer power supply, or a DC circuit that is rectified by turning on or off the computer power supply, or a DC circuit that is filtered by turning on or off the computer power supply. Or turning the computer power on or off by turning on or off the power supply circuit of the computer power control chip; the switching device used by the switching unit of the computer power source can be a relay, a thyristor, a crystal switching device, or a one-way crystal switching device and a bridge Rectifier circuit.

[33] The switching unit of the computer power supply has an independent power supply circuit to provide a driving current for the switching device to be turned on, and the power supply circuit is also turned off when the switching device is turned off.

[34] The control unit consists of the control chip and its peripheral circuits. Its function is to detect whether the computer power indicator is continuously off when the computer is in normal working condition, and to determine whether the computer system is turned off if it is continuously turned off; or to monitor its input through the computer power input current sensor. Whether the current value is reduced to the range of the system shutdown and input current value, if yes, it is determined that the computer system is turned off; when it is determined that the computer system is turned off, the computer power is turned off by the switch unit of the computer power supply. When the computer is in the off state, the switch button of the computer is used to detect whether the switch button is pressed. If pressed, it is determined that the computer system needs to be turned on, and the computer power is turned on by the switch unit of the computer power source, waiting for the computer power to complete. After the heat is turned on, the power-on signal is transmitted to the computer switch button port through the computer switch button connection unit to turn on the system.

[35] Computer power indicator connection unit, which is used by the control unit to detect the working state of the computer system.

The computer power indicator light is on continuously, the computer system is turned on; the computer power indicator blinks, the computer system is on standby; the computer power indicator is continuously turned off, and the computer system is hibernating or shutting down. When the DC low voltage end of the control circuit is co-located with the DC low voltage end of the computer, the computer power indicator connection unit is directly electrically connected. When the DC low voltage end of the control circuit and the DC low voltage end of the computer are not shared, the computer power indicator connection unit is a photoelectric coupling circuit, a capacitor circuit or an inductive mutual inductance circuit for isolating and transmitting signals.

[36] Calculate the power input current sensor, which is used by the control unit to detect the input current value of the computer power supply.

. The control unit monitors whether the computer power input current value is reduced to the system shutdown 吋 input current value through the computer power input current sensor, and if so, determines that the computer system is shut down. Computer current The sensor is an AC transformer or resistor connected to the computer's power input loop.

[37] The computer switch machine button connecting unit, which is a control unit for detecting whether the computer switch button is pressed; when the computer is turned on, when the computer switch button is pressed, it is determined that the computer needs to be turned on;吋The control unit will turn on the computer power through the switch unit of the computer power; and after the computer power is turned on and warmed up, the key switch signal of the computer switch machine button is transmitted to the computer switch machine button port through the computer switch button connection unit to turn on the computer. system. When the DC low voltage end of the control circuit is co-located with the DC low voltage end of the computer, the computer switch unit button connection unit is directly electrically connected. When the DC low voltage end of the control circuit and the DC low voltage end of the computer are not shared, the computer switch unit of the switch is a photoelectric coupling circuit, a capacitor circuit or an inductive mutual inductance circuit for isolating and transmitting signals.

[38] The switch unit of the computer power supply is used to turn off the computer power after the computer system is turned off, and turn on the computer power when the computer is turned on. The switching unit of the computer power supply can input current through an external power source that turns on or off the computer power supply; or rectifies the DC link current by a rectifier circuit that turns on or off the computer power supply; and filters the DC circuit by turning on or off the filter circuit of the computer power supply Current; or turn the computer's power on or off by turning the power of the computer's power control chip on or off. The switching device used in the switching unit of the computer power source may be a relay, a thyristor, a crystal switching device or a one-way crystal switching device and a bridge rectifier circuit.

[39] The contribution of the present invention is that it overcomes the drawback of the conventional method of reducing the power consumption of the computer power supply, which is difficult to effectively reduce the standby power consumption of the computer. By adding one to the original power supply, the power can be turned off after the computer system is turned off, and It replaces the low-power control circuit for standby operation; thus effectively reducing the standby power consumption of the computer power supply.

[40] BRIEF DESCRIPTION OF THE DRAWINGS

1 is a block diagram showing the structure of an implementation of the present invention.

2 is a block diagram showing the structure of an implementation of the present invention.

Figure 3 is a block diagram showing the structure of an implementation of the present invention.

4 is a circuit schematic diagram of an implementation of the present invention.

Figure 5 is a circuit schematic diagram of an implementation of the present invention.

6 is a schematic diagram of a typical computer power supply circuit of the present invention.

Figure 7 is a block diagram showing the structure of an implementation of the present invention.

[48] Specific implementation

[49] The control circuit for eliminating standby power consumption of a computer power supply of the present invention is for reducing power consumption of a computer power supply.

[2] As shown in FIG. 1, FIG. 2 and FIG. 3, when the computer is in the power-on state, the control unit 10 detects whether the computer power indicator light 61 is continuously turned off by the computer power indicator connection unit 20, and is in a continuously closed state. Then it can be determined that the computer system is in a shutdown state. The control unit 10 turns off the computer power supply ₉₀ through the switch unit _{40 of the} computer power source, thereby eliminating the computer power supply standby power consumption. When the computer is in the off state, the control unit 10 detects whether the computer switch button 7 is pressed by the computer switch button connecting unit 30, and determines that the computer needs to be turned on when the computer switch button 71 is pressed. Control order The unit 10 turns on the computer power source 90 through the switch unit 40 of the computer power source. After waiting for the computer power to be turned on, the computer switch power button connection unit 30 transmits a power-on signal to the computer switch button 72 to start the operating system.

[51] For computer power-on preheating, depending on the computer power supply for the specific application, each computer power supply has a relatively fixed preheating time, typically between 3 and 5 seconds. In addition, you can also detect the power of the computer ATX power supply.

Ready feet to determine if the computer's power supply has warmed up. Waiting for the computer power to be turned on before the computer is powered on, because the power supply to the computer is unstable after the computer power supply is not warmed up, and the computer has not entered a stable working state; if this is connected to the unit 30 through the computer switch button The computer power-on signal is transmitted to the computer switch button 72, and the computer system may not receive it properly and the computer system will not turn on.

[52] The detection of the turning on and off of the computer power indicator light 61 is realized by the photoelectric coupling device 21 connected in series between the computer power indicator light 61 and the computer power indicator port 62 as shown in FIG. 4; when the computer power source indicates When the lamp 61 is lit, the computer power indicator lamp 61 drives the current through the series-connected photocoupling device 21, and transmits a signal indicating that the computer power source indicator lamp 61 is illuminated to the control unit 10 via the photo-coupling device 21.

Or by a photoelectric coupling device connected in parallel between the computer power indicator light 61 and the computer power indicator port 62; when the computer power indicator light 61 is turned on, the photoelectric coupling device connected in parallel across the computer power indicator light 61 will power the computer The driving voltage signal of the indicator lamp 91 is turned on to the control unit 10. As shown in Figures 1 and 7, the computer power indicator light 61 is connected to the computer power indicator port 62, and the computer power indicator light 61 is directly illuminated by the computer. As shown in FIG. 2, the computer power indicator light unit 61 is not connected to the computer power indicator port 62, and the computer power indicator unit 20 is connected to the computer power indicator indicator 61 and the computer power indicator port 62, respectively; The computer power indicator light 61 is turned on by the computer power indicator connection unit 20 connected to the computer power indicator port 62, and the computer power indicator indicator 61 is illuminated by the control unit 10 through the computer power indicator connection unit 20.

[53] It is determined whether the computer system enters the shutdown state by detecting whether the computer power indicator 61 is continuously turned off, because the computer system is in normal operation, the power indicator indicator 61 is continuously lit; part of the computer is in the system standby mode, and the power is on. The indicator light 61 flashes alternately on and off. The operating system does not save the field data. If the computer power supply 90 is turned off, the data will be lost or the operating system will be damaged. Only when the power indicator indicator 61 is continuously turned off is the operating system. When the computer is turned off or in hibernation, the computer power supply 90 can be turned off.

[54] The detection of whether the computer switch button 71 is pressed can be detected by detecting the computer switch button

Whether the 71 circuit is conductive or not is implemented. When the computer system is turned off, the detection of whether the computer switch button 71 is pressed is performed when the computer power source 90 has been turned off by the switch unit 40 of the computer power source, and thus a power supply can be used as shown in FIG. The capacitor circuit 31 connected to both ends of the computer switch button 71 is realized. The capacitor circuit 31 is supplied with a pulse signal by the control unit 10. When the computer switch button 71 is pressed and the tantalum capacitor circuit 31 is turned on, the control unit 10 receives the return pulse signal, thereby Can be judged.

[55] The computer power-on signal transmission to the computer switch button port 72 is effected by a photocoupling device 32 in parallel with the computer switch button port 72 as shown in FIG. After transmitting the signal, the control unit 10 transmits a high level of the computer power-on signal to the photo-coupling device 32, and the photo-coupling device 32 generates a current in the circuit of the computer power-off button port 72, and the signal is transmitted.

[56] As shown in FIG. 1, the computer switch button 71 is connected to the computer switch button port 72.

[2] As shown in FIG. 2, FIG. 4, and FIG. 5, the computer switch button 71 is not connected to the computer switch button 72, and the computer switch button 71 is pressed to the control chip when the computer is turned on. 11. The control chip 11 transmits the button signal to the computer switch button port 72 via a photocoupler in parallel with the computer switch button 72.

[58] As shown in FIG. 3 and FIG. 5, the determination of whether the computer enters the shutdown state is achieved by the computer power input current sensor 80 detecting the computer power input current value. When the computer is turned on, when it is detected that the computer power input current value falls within the range of the computer system shutdown 吋 input current value, it is determined that the computer system is shut down; the control unit 10 turns off the computer power supply 90 through the switch unit 40 of the computer power source, thereby eliminating Computer power standby power consumption. When the computer is in the off state, the control unit 10 detects whether the computer switch button 71 is pressed by the computer switch button connecting unit 30, and when the computer switch button 71 is pressed, it can be determined that the computer needs to be turned on. The control unit 10 turns on the computer power source ₉₀ through the switch unit _{40 of the} computer power source. After waiting for the pre-stored computer power to be warmed up, the computer switch power button connection unit 30 transmits a power-on signal to the computer switch button 72 to notify the operating system to boot. Computer current sensor 80 is an AC transformer or resistor that is connected in the computer power input loop.

[59] As shown in FIG. 7, the computer power indicator connection unit 20 is used in the same manner as the computer power input current sensor 80; because some computers have the remote wake-up WOL_Wake on LAN function in the off state,

In this case, the NIC with remote wake-up WOL function requires the computer power supply 90 to continue to supply power while the computer is off, instead of turning off the computer power 90. In this case, it is necessary to use the computer power indicator connection unit 20 and the computer power input current sensor 80. Because the computer power indicator connection unit 20 can detect whether the computer is turned off, it cannot detect whether the network card with remote wake-up WOL function is activated. The computer power input current sensor 80 can determine whether the input current value of the computer power supply 90 is higher than the computer system shutdown 吋 input current value when the computer power indicator connection unit 20 detects that the computer is turned off. A network card with remote wake-up WOL function has been activated. In this state, the control unit 10 does not turn off the computer power supply 90 through the switch unit 40 of the computer power source, thereby ensuring that the remote wake-up WOL function is implemented.

[60] As shown in FIG. 6, the switch unit 40 of the computer power supply is controlled by the control unit 10 to switch the computer power supply 90, and is composed of a switching device and its driving circuit. The switch of the computer power supply 90 can be turned on or off the external power input circuit 91 of the computer power supply; or by turning on or off the DC circuit 92 rectified by the computer power supply; or by turning on or off the computer power supply filtered DC circuit 93; Or turn the calculation on or off by turning on or off the power supply loop 94 of the computer power control chip. Machine power supply 90.

[61] Switching unit for computer power supply 40 The switching device used can be a relay, a thyristor, a crystal switching device or a unidirectional crystal switching device and a bridge rectifier circuit.

[62] As shown in FIG. 4 and FIG. 5, in order to reduce the power consumption of the control circuit when the computer is in the off state, the switch unit 40 of the computer power supply may have an independent power supply circuit 41 to provide the drive device to open the drive. The current is also turned off when the switching device is turned off.

[63] Conventional devices can be used for the devices used in the various units described above.

[64] Although the present invention has been disclosed by the above embodiments, the scope of the present invention is not limited thereto.

The above components may be replaced by similar or equivalent elements known to those skilled in the art without departing from the inventive concept.

Claims

i. A control circuit for eliminating standby power consumption of a computer power supply, characterized in that it comprises: a control unit (10) consisting of a control chip (11) and its peripheral circuits;

a computer power indicator connection unit (20) connected to the control unit (10), the computer power indicator (61), and the computer power indicator port (62);

a computer switch button connecting unit (30), which is connected to the control unit (10), the computer switch button (71), and the computer switch button (72);

a computer power switch unit (40); it is connected to the control unit (10), computer power supply (90);

A power supply unit (50) that is connected to an external power supply (100) to power the entire control circuit.

2. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein said computer power indicator light connection unit (20) is a control unit (10) for detecting a computer system. Working state; computer power indicator is continuously lit, computer system is turned on

The computer power light is blinking, the computer system is on standby; the computer power light is continuously turned off, and the computer system is hibernating or shutting down.

3. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein said computer power indicator light connecting unit (20), when the DC low voltage end of the control circuit and the DC low voltage end of the computer Commonly, the computer power indicator connection unit (20) is a direct electrical connection; when the DC low voltage end of the control circuit is not shared with the DC low voltage end of the computer, the computer power indicator connection unit (20) is used for isolation and transmission. A photoelectric coupling circuit, a capacitive circuit or a mutual inductance circuit.

4. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein said computer switch button connection unit (30) is a control unit (10) for detecting a computer switch. Whether the machine button is pressed; When the computer is turned off, when the computer switch button is pressed, it is determined that the computer needs to be turned on; then the control unit (10) turns on the computer power through the switch unit (40) of the computer power source (90); and after the computer power supply (90) is turned on and warmed up, the key switch signal of the computer switch button (71) is transmitted to the computer switch button (72) through the computer switch button connecting unit (30), Turn on the computer system.

5. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein said computer switch button connecting unit (30), when the DC low voltage end of the control circuit and the DC low voltage end of the computer Commonly, the computer switch button connecting unit (30) is a direct electrical connection; when the DC low voltage end of the control circuit and the computer DC low voltage end are not shared, the computer switch button connecting unit (30) is used for isolation and transmission. A photoelectric coupling circuit, a capacitive circuit or a mutual inductance circuit.

6. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein the switching unit (40) of the computer power source is configured to turn off the computer power after the computer system is turned off (90). ), turn on the computer power (90) when you need to turn it on.

7. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein the switching unit (40) of the computer power source passes an external power input circuit that turns on or off the computer power source (91). ), or by turning on or off the DC circuit (92) rectified by the computer power supply, or by turning the DC circuit (93) after turning on or off the computer power supply, or by turning on or off the power supply circuit of the computer power control chip (94) To turn the computer power on or off (90); the switching device used in the switching unit (40) of the computer power supply is a relay, a thyristor, a crystal switching device or a unidirectional crystal switching device and a bridge rectifier circuit.

8. The control circuit for eliminating standby power consumption of a computer power supply according to claim 1, wherein the switching unit (40) of the computer power source has an independent power supply circuit to provide driving of the switching device to open 吋. The current is also turned off when the switching device is turned off.

9. A control circuit for eliminating standby power consumption of a computer power supply, characterized in that it comprises: a control unit (10) consisting of a control chip (11) and its peripheral circuits;

a computing power input current sensor (80) coupled to the control unit (10), computer power source (90);

10. The control circuit for eliminating standby power consumption of a computer power supply according to claim 9, wherein said computer power input current sensor (80) is a control unit (10) for detecting a computer power supply ( 90) The input current value; The control unit (10) monitors whether the computer power supply (90) input current value is reduced to the system shutdown 吋 input current value by the computer power input current sensor (80), and if so, determines that the computer system is shut down. The computer power input current sensor (80) is an AC transformer or resistor connected to the computer's power input loop.

11. The control circuit for eliminating standby power consumption of a computer power supply according to claim 9, wherein said computer switch button connection unit (30) is a control unit (10) for detecting a computer switch. Whether the machine button is pressed; When the computer is turned off, when the computer switch button is pressed, it is determined that the computer needs to be turned on; then the control unit (10) turns on the computer power through the switch unit (40) of the computer power source (90); and after the computer power supply (90) is turned on and warmed up, the key switch signal of the computer switch button (71) is transmitted to the computer switch button (72) through the computer switch button connecting unit (30), Turn on the computer system.

12. The control circuit for eliminating standby power consumption of a computer power supply according to claim 9, wherein said computer switching machine button connecting unit (30), when the DC low voltage end of the control circuit and the computer DC low voltage end Commonly, the computer switch button connecting unit (30) is a direct electrical connection; when the DC low voltage end of the control circuit and the computer DC low voltage end are not shared, the computer switch button connecting unit (30) is used for isolation and transmission. A photoelectric coupling circuit, a capacitive circuit or a mutual inductance circuit.

13. The control circuit for eliminating power consumption of a computer power supply according to claim 9, wherein the switching unit (40) of the computer power source is configured to turn off the power of the computer after the computer system is turned off (90). ), turn on the computer power (90) when you need to turn it on.

14. The control circuit for eliminating standby power consumption of a computer power supply according to claim 9, wherein the switching unit (40) of the computer power source passes an external power input circuit that turns on or off the computer power source (91). ), or by turning on or off the DC circuit (92) rectified by the computer power supply, or by turning the DC circuit (93) after turning on or off the computer power supply, or by turning on or off the power supply circuit of the computer power control chip (94) To turn the computer power on or off (90); the switching device used in the switching unit (40) of the computer power supply is a relay, a thyristor, a crystal switching device or a unidirectional crystal switching device and a bridge rectifier circuit.

15. The control circuit for eliminating standby power consumption of a computer power supply according to claim 9, wherein the switching unit (40) of the computer power source has an independent power supply circuit to provide driving of the switching device to open 吋. The current is also turned off when the switching device is turned off.

A control circuit for eliminating standby power consumption of a computer power supply, characterized in that it comprises a control unit (10) consisting of a control chip (11) and its peripheral circuits;

17. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein said computer power indicator light connection unit (20) is a control unit (10) for detecting a computer system. The working status is; the computer power indicator is continuously lit, the computer system is turned on; the computer power indicator is blinking, the computer system is on standby; the computer power indicator is continuously turned off, and the computer system is hibernating or shutting down.

18. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein said computer power indicator light connecting unit (20), when the DC low voltage end of the control circuit and the DC low voltage end of the computer Commonly, the computer power indicator connection unit (20) is a direct electrical connection; when the DC low voltage end of the control circuit is not shared with the DC low voltage end of the computer, the computer power indicator connection unit (20) is used for isolation and transmission. A photoelectric coupling circuit, a capacitive circuit or a mutual inductance circuit.

19. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein said computer power input current sensor (80) is a control unit (10) for detecting a computer power supply ( 90) The input current value; The control unit (10) monitors whether the computer power supply (90) input current value is reduced to the system shutdown 吋 input current value by the computer power input current sensor (80), and if so, determines that the computer system is shut down. The computer power input current sensor (80) is an AC transformer or resistor connected to the computer power input circuit.

20. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein said computer switch button connection unit (30) is a control unit (10) for detecting a computer switch. Whether the machine button is pressed; When the computer is turned off, when the computer switch button is pressed, it is determined that the computer needs to be turned on; then the control unit (10) turns on the computer power through the switch unit (40) of the computer power source (90); and after the computer power supply (90) is turned on and warmed up, the key switch signal of the computer switch button (71) is transmitted to the computer switch button (72) through the computer switch button connecting unit (30), Turn on the computer system.

21. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein said computer switch button connection unit (30), when the DC low voltage terminal of the control circuit and the DC low voltage terminal of the computer Commonly, the computer switch button connecting unit (30) is a direct electrical connection; when the DC low voltage end of the control circuit and the computer DC low voltage end are not shared, the computer switch button connecting unit (30) is used for isolation and transmission. A photoelectric coupling circuit, a capacitive circuit or a mutual inductance circuit.

22. The control circuit for eliminating power consumption of a computer power supply according to claim 16, wherein the switching unit (40) of the computer power source is configured to turn off the power of the computer after the computer system is turned off (90). ), after turning on the computer, turn on the computer (90);

23. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein the switching unit (40) of the computer power source passes an external power input circuit that turns on or off the computer power source (91). ), or by turning on or off the DC circuit (92) rectified by the computer power supply, or by turning the DC circuit (93) after turning on or off the computer power supply, or by turning on or off the power supply circuit of the computer power control chip (94) To enable or disable the computer power (90); the switching device used by the switching unit (40) of the computer power source can be a relay, a thyristor, a crystal switching device or a unidirectional crystal switching device and a bridge rectifier circuit.

24. The control circuit for eliminating standby power consumption of a computer power supply according to claim 16, wherein the switching unit (40) of the computer power source has an independent power supply circuit to provide driving of the switching device to open 吋. The current is also turned off when the switching device is turned off.