KR101633297B1 - Power supply apparatus and method for reducing standby power of electronic device - Google Patents

Abstract

The present invention relates to power supply apparatus and method for reducing standby power of an electronic device, capable of reducing consumption of the standby power to a zero state level, in which the standby power consumed through a main board is remarkably decreased in a main power off state of the corresponding electronic device because the supply of the standby power to the main board is auto-switched into a shutting state according to a preset condition based on an operation state signal transmitted in real-time from the main board of the electronic device such as a computer, and an output current value of the standby power outputted to the main board. The power supply apparatus for reducing the standby power of the electronic device according to the present invention includes a standby power control unit which transmits a preset first signal to the main board after controlling a standby power shutting unit to a standby power supplying state with respect to the main board of the electronic device as an on-signal is input thereto from a power switch for turning on/off the electronic device, allows main power to be supplied to the main board from a main power source unit of the electronic device according to a preset second signal of the main board depending on the first signal, and controls the standby power shutting unit to a standby power shut state with respect to the main board when an off signal of the power switch is received in a state that the second signal is received. In addition, the standby power control unit determines a sleep mode state of the electronic device according to a current value detected from a current sensor detecting an output current value of a standby power source unit in order to control the standby power shutting unit to the standby power shut state with respect to the main board when the mode is not the sleep mode and continuously determine the sleep mode state of the electronic device when the mode is the sleep mode.

Description

Technical Field [0001] The present invention relates to a power supply apparatus and method for reducing standby power of an electronic device,

The present invention relates to an apparatus and method for automatically switching a standby power supply to a main board to a cutoff state according to a predetermined condition based on an operation state signal transmitted from a main board of an electronic device such as a computer in real time and an output current value of a standby power output to the main board And a standby power consumed by the main board is reduced in a main power off state of the electronic device so that the standby power consumption can be reduced to a zero state level. .

Generally, an electronic device such as a computer using power consumes standby power at a time when it does not operate and waits. This standby power is much smaller than the main power provided when the electronic device (hereinafter referred to as " computer ") is turned on, but its consumption increases in proportion to the standby time. Power consumption is wasted.

Therefore, various studies have been made to reduce power consumption by reducing the standby power consumption of a computer, and the applicant of the present invention has made a study of the present invention.

Korean Registered Patent No. 10-1419516 (published on Apr. 14, 2014), " apparatus and method for managing power savings of a computer system " Korean Patent No. 10-0376131 (published on Mar. 15, 2003), " Standby power saving power supply device and control method thereof "

The embodiments of the present invention are based on an operation state signal transmitted in real time from a main board of an electronic device such as a computer and an output current value of a standby power outputted to the main board, So that the standby power consumed by the main board in the main power off state of the electronic device is reduced so that the consumption of the standby power can be lowered to a zero state level. Apparatus and method.

In addition, the embodiment of the present invention can be implemented by turning on / off the power of the display panel in the electronic device including the main body and the display panel, such as a computer and a monitor, Power consumption of the electronic device can be prevented by preventing power consumption of the electronic device from being turned off.

In addition, embodiments of the present invention provide a power supply apparatus and method for reducing standby power of an electronic device that can prevent a power unit overheating phenomenon of an electronic device including a main board such as a computer through an automatic cooling function.

The power supply device for reducing the standby power of the electronic device according to the embodiment of the present invention includes an standby power supply unit for generating a standby power supply to be supplied to the main board of the electronic device, A standby power cut-off unit for shutting off or supplying the standby power supplied from the standby power unit to the main board, and a power source for turning on / off the electronic device, And a controller for controlling the standby power interruption unit to the standby power supply state for the main board according to the on signal of the power switch, and transmitting a first signal preset in the main board, Main power is supplied to the main board from the main power unit of the electronic device according to a second predetermined signal The control unit controls the standby power interruption unit to turn off standby power to the main board when receiving the off signal of the power switch in the reception state of the second signal, And a standby power control unit for controlling the standby power cutoff unit to the standby power cutoff state for the main board if the device is not in the sleep mode or continuing to determine whether the electronic device is in the sleep mode if the device is in the sleep mode have.
Also, the standby power control unit transmits a PWR_ON SIG (LOW) signal to the main board as the first signal, and a main power is supplied from the main power unit to the main board when the PS_ON SIG (LOW) , And may use the PS_ON SIG (LOW) signal as the second signal as a base signal for on / off judgment of the main power unit.

delete

The display device may further include a display panel for displaying information to be processed, and the standby power controller may include a driving power source for supplying power to the display panel when receiving the second signal from the main board, Or the like.

A temperature sensor for sensing the temperature of the power unit when the power unit includes the standby power unit and the main power unit and includes at least one of the current sensor, the standby power interruption unit, and the standby power control unit; Wherein the standby power control unit includes a cooling circuit for lowering the temperature of the power supply unit when the temperature value sensed by the temperature sensing sensor in the off state of the main power supply unit rises above a predetermined threshold temperature, When the temperature detected by the temperature sensor is lowered below the critical temperature, the power supply to the cooling circuit of the standby power supply unit is stopped, and then the on-signal of the power supply switch It is possible to return to the standby state.

Further, a power supply method for reducing standby power of an electronic device according to an embodiment of the present invention includes the steps of: inputting an ON signal of a power switch to a standby power control unit; Controlling a state in which the standby power is supplied to the main board of the electronic device; transmitting a first signal preset in the main board in the standby power control unit; A step of causing the standby power control unit to supply a main power of the main power unit to the main board in response to the reception of the second signal by the standby power control unit; And an operation state signal of the main board, The method comprising the steps of: receiving an output current signal of a standby power supply in real time; determining whether the electronic device is in a sleep mode through a signal of the current sensor in the standby power control unit; Controlling the standby power interruption unit to a standby power off state of the standby power unit for the main board when the operation status signal corresponds to the second signal and the electronic device is not in the sleep mode; And waiting for the ON signal input of the power switch from the control unit.

According to an embodiment of the present invention, based on an operation state signal transmitted in real time from a main board of an electronic device such as a computer and an output current value of a standby power output to the main board, So that the standby power consumed by the main board in the main power off state of the electronic device is reduced and the standby power consumption can be reduced to the zero state level.

In addition, since the power on / off of the display panel in the electronic device including the main body and the display panel, such as a computer and a monitor, is interlocked with the main body as a reference, the power due to not turning off the power switch of the display panel in the off state of the main body Consumption can be prevented.

Also, overheating phenomenon of a power source of an electronic device including a main board such as a computer can be prevented by an automatic cooling function.

1 is a block diagram illustrating a power supply for standby power reduction of an electronic device according to an embodiment of the present invention;
2 to 7 are views showing a live-action image of a main part in a power supply for standby power reduction of the electronic device according to the embodiment of Fig. 1
8 to 10 are block diagrams showing examples in which some configurations are added in a power supply for standby power reduction of an electronic device according to an embodiment of the present invention.
11 is a flowchart showing a power supply method for standby power reduction of an electronic device according to an embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It is also to be understood that the position or arrangement of the individual components within each described embodiment may be varied without departing from the spirit and scope of the present invention.

The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which the claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

Whenever an element is referred to as " including " an element throughout the description, it is to be understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. In addition, "... "... Module " or the like means a unit for processing at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

A power supply and a method for reducing standby power of a computer according to an embodiment of the present invention will be described with reference to FIGS.

In the following description, a power supply apparatus and method for reducing standby power of an electronic device according to an embodiment of the present invention is applied to a computer, but the present invention is not limited thereto, And the electronic device in which standby power is supplied to the electronic device can be applied to the present invention.

First, a power supply for reducing standby power of an electronic device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10. FIG.

1 is a block diagram illustrating a power supply for standby power reduction of an electronic device according to an embodiment of the present invention. 2 to 7 are views showing a live-action image of a main part in a power supply for standby power reduction of the electronic device according to the embodiment of FIG.

As shown in the figure, a power supply apparatus for reducing standby power of an electronic device according to an embodiment of the present invention includes an standby power supply unit 10, a current sensor 20, a standby power shutdown unit 30, a power switch 40, , And a standby power control unit 50. [

The standby power supply unit 10 functions to generate a standby power supply to be supplied to the main board 110 of the computer 100. The standby power supply unit 10 generates standby power of +5 V to be supplied to the main board 110 of the computer 100. [

The current sensor 20 is connected to a standby power output terminal of the standby power supply unit 10 and senses an output current value of the standby power supply unit 10. [ A signal of the output current value of the standby power supply unit 10 sensed by the current sensor 20 is provided to the standby power control unit 50.

The standby power interruption unit 30 functions to shut off or supply standby power from the standby power source unit 10 to the main board 110. [

The power switch 40 is a switch for turning on / off the computer 100, that is, turning on / off the computer 100 through the operation of the power switch 40. In this embodiment, the power switch 40 is a push switch that is exposed to the outside of the main body of the computer 100. However, the present invention is not limited thereto, and the power switch may be configured to receive a remote control signal Various types of switches may be used within a range that satisfies a condition for generating a signal for on / off of the computer 100, such as a form.

The standby power control unit 50 controls the standby power shutdown unit 30 to the standby power supply state for the main board 110 of the computer 100 according to the ON signal of the power switch 40, The main power supply unit 60 of the computer 100 transmits a first predetermined signal to the main board 110 of the computer 100 according to a predetermined second signal of the main board 110 of the computer 100 according to the first signal transmission, So that main power is supplied from the main board 110 to the main board 110.

The standby power control unit 50 controls the standby power supply unit 10 in response to the OFF signal of the power switch 40 in the second signal reception state from the computer main board 110 to the standby power off state .

The standby power control unit determines whether the computer 100 is in the sleep mode according to the current value sensed by the current sensor 20 in the second signal reception state from the computer main board 110, The shutdown unit controls the standby power supply to the main board of the computer, and if the computer is in the sleep mode, continues to determine whether the computer 100 is in the sleep mode.

In this embodiment, the standby power control unit 50 transmits a PWR_ON SIG (LOW) signal to the main board 110 of the computer as a first signal, and a PS_ON SIG (low) signal as a second signal from the main board 110 of the computer 100 (LOW) signal from the main power supply unit 60 to the main board 110 when the main power unit 60 receives the LOW signal and the PS_ON SIG Signal, but the present invention is not limited thereto.

The standby power control unit 50 detects in real time whether or not the corresponding computer 100 is in the sleep mode based on a signal transmitted from the main board 110 of the computer 100, The output current value of the standby power supply unit 10 supplied to the board 110 is provided in real time through the current sensor 20. [ In this process, the standby power control unit 50 determines whether the signal transmitted from the main board 110 of the computer 100 is a predetermined second signal, PS_ON SIG (LOW) based on the present embodiment, If the output current value of the standby power supply unit 10 provided in the computer 100 of the standby power supply unit 100 corresponds to the current value of the computer 100 that is not the sleep mode of the computer 100, Off state for the main board 110 of the main body 100 of the apparatus.

That is, in a state where the main power unit 60 of the computer 100 is off, an operation state signal transmitted from the main board 110 of the computer 100 in real time and an output current of the standby power output to the main board 110 The supply of standby power to the main board 110 is automatically switched to the cutoff state according to a predetermined condition based on the value of the main power supply 60. Therefore, when the main power supply 60 of the computer 100 is turned off, The standby power consumption can be reduced to such a level that the consumption of the standby power can be said to be zero.

When the standby power control unit 50 receives a signal from the power switch 40 of the computer 100 in a state where the consumption of standby power through the main board 110 of the computer 100 is zero, The control unit 50 controls the standby power interruption unit 30 to the standby power supply state for the mainboard 110 of the computer 100 and then transmits the standby power to the mainboard 110 of the computer 100, And transmits the set first signal. Accordingly, the main board 110 of the computer 100 transmits a second predetermined signal according to the first signal transmission from the standby power control unit 50, the PS_ON SIG (LOW) And the standby power control unit 50 receives the PS_ON SIG (LOW) signal from the main board 110 of the computer 100 and transmits the PS_ON SIG (LOW) signal from the main power unit 60 of the computer 100 to the main board 110 ) To be supplied with main power.

Meanwhile, the standby power control unit 50 receives a predetermined second signal from the main board 110 of the computer 100, that is, PS_ON SIG (LOW) based on the present embodiment, from the power switch 40 Off signal is received, the standby power interruption unit 30 is operated in a standby power off state with respect to the main board 110 of the computer 100. [ That is, when the main power unit 110 of the computer 100 is turned off, the standby power consumed by the main board 110 of the computer 100 is reduced and the consumption of the standby power is zero . ≪ / RTI > When the power is switched from the power switch 60 of the computer 100 to the standby power control unit 50 in a state where the consumption of standby power through the main board 110 of the computer 100 is zero, The main power source of the main power unit 60 is supplied to the main board 110 of the computer 100 while standby power is supplied to the main board 110 of the computer 100 through a series of processes described in the paragraph of the paragraph [

2 to 7, FIG. 2 illustrates an example in which the standby power supply unit 10 and the main power supply unit 60 are implemented on a PCB in a power supply unit for reducing standby power of the computer according to the embodiment of FIG. FIG. 3 shows an example in which the standby power controller 50 is implemented on a PCB in a power supply for reducing standby power of the computer according to the embodiment of FIG. 1 as a real image. 4 and 5 are actual images of a power supply device for reducing standby power of a computer according to the embodiment of FIG. 1, in which a current sensor 20 and a standby power shutoff unit 30 are implemented on a PCB. 6 and 7 show the output terminal of the PWR_ON SIG and the signal input terminal from the power switch 40 in the standby power control unit 50 according to FIG. 3 as a real image.

8 to 10, examples in which some configurations are added to a power supply for standby power reduction of an electronic device according to an embodiment of the present invention will be described.

8 to 10 are block diagrams showing examples in which some configurations are added in a power supply for standby power reduction of an electronic device according to an embodiment of the present invention.

Referring to FIG. 8, FIG. 8 illustrates a configuration in which a rectifier is further included in a power supply for standby power reduction of the electronic device according to the embodiment of FIG.

The rectifying unit 90 functions to convert external AC power supplied to the computer 100 into DC power.

The standby power supply unit 10 and the main power supply unit 60 are connected in parallel to the output terminal of the rectifying unit 90.

That is, this embodiment is a form in which the configuration of the power supply for standby power reduction of the electronic device according to the embodiment of FIG. 1 is applied to the power supply configuration of a general computer, But the present invention is not limited to the embodiment of FIG.

9, a power supply for standby power reduction of an electronic device according to the embodiment of FIG. 1 includes a display panel for displaying information to be processed, and a standby power control unit 50 When receiving a predetermined second signal from the main board of the electronic device in accordance with the transmission of the predetermined first signal to the main board of the electronic device, the driving power is supplied to the display panel through the display panel power supply unit 200 to be.

1, the standby power controller 50 controls the main board 110 of the computer 100 according to the transmission of the signal from the power switch 40, (SIG (LOW) signal of the reference in the present embodiment), thereby receiving a preset second signal (PS_ON SIG (LOW) signal of the present embodiment) from the main board 110 of the computer 100 Allow power to be supplied.

Since power on / off of the computer and the monitor can be interlocked with each other on the basis of the computer through the above-described configuration, power consumption due to not turning off the power switch of the monitor in the off state of the computer can be prevented.

10, the power supply for standby power reduction of the electronic device according to the embodiment of FIG. 1 further includes a temperature sensing sensor and a cooling circuit.

A configuration including at least one of the current sensor 20, the standby power interruption unit 30, and the standby power control unit 50 including the standby power supply unit 10 and the main power supply unit 60 is referred to as a power supply unit .

The temperature sensing sensor 70 senses the temperature of the power supply unit and provides a sensed temperature value to the standby power control unit in real time.

The cooling circuit 80 operates under the control of the standby power control unit 50 to lower the temperature of the power supply unit.

The standby power control unit 50 controls the standby power supply unit 10 to supply power to the cooling circuit 80 when the temperature detected by the temperature detection sensor 70 in the off state of the main power supply unit 60 rises above a predetermined threshold temperature, To lower the elevated temperature of the power supply unit to a normal value. That is, when the temperature sensed by the temperature sensor 70 is lowered below the critical temperature, the standby power controller stops power supply to the cooling circuit 80 of the standby power supply 10, On signal is restored.

The overheating phenomenon of the power supply unit can be prevented through the automatic cooling function by the temperature sensor 70, the standby power control unit 50, and the cooling circuit 80 through the above-described configuration.

Next, a power supply method for standby power reduction of an electronic device according to an embodiment of the present invention will be described with reference to FIG.

11 is a flowchart illustrating a power supply method for reducing standby power of an electronic device according to an embodiment of the present invention.

Prior to the description, in the power supply method for standby power reduction of the electronic device according to the present embodiment, the power supply for standby power reduction of the electronic device is in accordance with the embodiment of Fig. 1, It is noted that the reference numeral for the power supply for standby power reduction is as shown in Fig.

As shown in the figure, in step S110, the ON signal of the power switch 40 is input to the standby power control unit 50. [

The standby power control unit 50 controls the standby power interruption unit 30 such that the standby power of the standby power source unit 10 is supplied to the main board 110 of the computer 100 in step S120.

In step S130, the standby power control unit 50 transmits a predetermined first signal to the main board 110 of the computer. 1, the standby power control unit 50 transmits a PWR_ON SIG (LOW) signal to the main board 110 of the computer 100.

In step S140, the main board 110 of the computer 100 transmits a predetermined second signal to the standby power controller 50 according to the reception of the first signal. 1, a PS_ON SIG (LOW) signal is transmitted to the standby power controller 50 according to the transmission of the PWR_ON SIG (LOW) signal of the standby power controller 50 in the main board 110 of the computer 100 send.

In step S150, the main power source of the main power unit 60 is turned on in response to the reception of the second signal, that is, the PS_ON SIG (LOW) signal, from the main board 110 of the computer 100 in the standby power control unit 50, To be supplied to the main board 110 of the main body 100.

In step S160, an operation state signal of the main board 110 from the standby power control unit 50 and an output of the standby power from the standby power unit 10 detected through the current sensor 20 to the main board 110 Current signal in real time and determines whether the computer 100 is in the sleep mode through the signal of the current sensor 20. [

In step S170, the standby power control unit 50 determines whether the operation state signal of the main board 110 corresponds to the second signal, that is, the PS_ON SIG (LOW) signal.

If it is determined in step S180 that the operation state signal of the main board 110 is the second signal, that is, the PS_ON SIG (LOW) signal as a result of the execution of step S170 in the standby power control unit 50, ) Is in the sleep mode.

If it is determined in step S190 that the computer 100 is in the sleep mode as a result of the execution of step S180 in the standby power control unit 50, the standby power interruption unit 30 may be connected to the standby power source unit 10 ) To the standby power-off state.

In step S200, the standby power control unit 50 waits for the ON signal input of the power switch 40. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described above, and all of the equivalents or equivalents of the claims, as well as the claims, will be included in the scope of the present invention.

10: Standby power section 20: Current sensor
30: Standby power shutoff unit 40: Power switch
50: standby power control unit 60: main power supply unit
70: Temperature sensor 80: Cooling circuit
90: rectification part 100: computer
110: main board 120: display panel power section

Claims (5)

An idle power source 10 for generating a standby power source to be supplied to the main board 110 of the electronic device 100;
A current sensor 20 connected to a standby power output terminal of the standby power supply unit 10 to sense an output current value of the standby power supply unit 10;
A standby power interruption unit 30 for shutting off or supplying standby power from the standby power source unit 10 to the main board 110;
A power switch 40 for turning on / off the electronic device 100;
The main power switch 40 is controlled to be in the standby power supply state for the main board 110 according to the ON signal of the power switch 40 and then a PWR_ON SIG (LOW) signal is transmitted to the main board 110 And main power is supplied to the main board 110 from the main power unit 60 of the electronic device 100 according to the PS_ON SIG (LOW) signal of the main board 110 according to the PWR_ON SIG (LOW) signal , When the OFF signal of the power switch 40 is received in the state of receiving the PS_ON SIG (LOW) signal, the standby power interruption unit is controlled to be in the standby power off state for the main board, It is determined whether the electronic device 100 is in the sleep mode according to the current value. If the sleep mode is not selected, the standby power interruption unit is controlled to be in the standby power off state for the main board. And continue to determine whether the lip mode, comprising: a standby power controller 50 that the PS_ON SIG (LOW) based on a signal for the ON / OFF judgment of the main power source 60, a signal,
The electronic device 100 is a form including a monitor for displaying information to be processed,
The standby power controller 50 causes driving power to be supplied to the monitor when receiving the PS_ON SIG (LOW) signal from the main board 110 according to the transmission of the PWR_ON SIG (LOW) signal. Power supply for standby power reduction of the device. delete delete The method according to claim 1,
A configuration including the standby power supply unit 10 and the main power supply unit 60 and including at least one of the current sensor 20, the standby power shutdown unit 30 and the standby power control unit 50 is defined as a power supply unit. when doing,
A temperature sensing sensor 70 for sensing the temperature of the power supply unit and a cooling circuit 80 for lowering the temperature of the power supply unit,
The standby power controller 50 controls the standby power controller 10 to operate the standby power controller 10 when the temperature detected by the temperature sensor 70 in the off state of the main power unit 60 rises above a predetermined threshold temperature, The power supply to the cooling circuit 80 of the standby power supply unit 10 is stopped when the temperature sensed by the temperature sensor 70 is lowered below the critical temperature by operating the cooling circuit 80, The standby state of the power switch (40) is restored to a state of waiting for the ON signal of the power switch (40). The ON signal of the power switch 40 is input to the standby power control unit 50;
Controlling the standby power interruption unit 30 in the standby power control unit 50 such that standby power of the standby power source unit 10 is supplied to the main board 110 of the electronic device 100;
Transmitting a PWR_ON SIG (LOW) signal to the main board 110 from the standby power control unit 50;
Transmitting a PS_ON SIG (LOW) signal to the standby power controller 50 upon receiving the PWR_ON SIG (LOW) signal from the main board 110;
Causing the standby power controller 50 to supply a main power of the main power unit 60 to the main board 110 upon receipt of the PS_ON SIG (LOW) signal;
An operation state signal of the main board 110 from the standby power control unit 50 and an output current signal of the standby power supplied to the main board 110 from the standby power unit 10 sensed through the current sensor 20 In real time;
Determining whether the electronic device 100 is in a sleep mode through the signal of the current sensor 20 in the standby power controller 50;
When the operation state signal of the main board 110 corresponds to the PS_ON SIG (LOW) signal in the standby power control unit 50 and the electronic device 100 is not in the sleep mode, 30) to a standby power-off state of the standby power source unit (10) with respect to the main board (110);
And waiting for the ON signal input of the power switch 40 from the standby power control unit 50,
The standby power for the monitor of the electronic device 100 is also shut off when the standby power interruption unit 30 is controlled to be in the standby power off state for the main board 110 in the standby power control unit 50 And allowing driving power to be supplied to the monitor of the electronic device 100 upon receiving the PS_ON SIG (LOW) signal from the main board 110 in response to the transmission of the PWR_ON SIG (LOW) signal A power supply method for reducing standby power of an electronic device.

Images