CN101957646A

CN101957646A - Computer power supply for quasi-zero-power consumption standby

Info

Publication number: CN101957646A
Application number: CN200910152158XA
Authority: CN
Inventors: 钱和革
Original assignee: Individual
Current assignee: Huan Desheng
Priority date: 2009-07-14
Filing date: 2009-07-14
Publication date: 2011-01-26
Anticipated expiration: 2029-07-14
Also published as: CN101957646B

Abstract

The invention discloses a computer power supply for quasi-zero-power consumption standby. The computer power supply comprises an ATX power supply, an alternating current output socket and a standby control circuit, wherein the standby control circuit comprises a storage capacitor, a relay control circuit and a voltage trigger circuit; the storage capacitor is connected between an SB wire and a ground wire of the power supply; the relay control circuit is connected in parallel with the storage capacitor; the output end of the trigger circuit is connected with the relay control circuit; a PS-ON wire of the power supply is also connected with the relay control circuit; the output end of a relay is connected in series in an alternating current input circuit of the ATX power supply after being connected in parallel with a button switch; and the alternating current output socket is connected in parallel with the ATX power supply. The computer power supply has the advantages that: when a computer is standby or shutdown, the ATX power supply and an alternating current circuit of peripheral equipment can be switched off automatically and the storage capacitor supplies power to a mainboard continuously, so that the standby power consumption of the power supply per se and the peripheral equipment of the computer is eliminated substantially; when the computer is booted, the alternating current circuit can be switched on automatically, which is convenient and saves energy; and the control circuit has the characteristics of simple structure, low cost and easy implementation.

Description

A kind of computer power of quasi-zero power consumption standby

Technical field

The invention belongs to the computer power field, relate in particular to the computer power of a kind of may command computer and peripheral equipment stand-by power consumption thereof.

Background technology

Computer is when standby or shutdown, most people do not pull out plug or close the custom of the switch of socket, if do not pull out plug or close the switch of socket, ATX computer power itself then, the mainboard of computer, display, printer, ADSL, equipment such as audio amplifier are all also in power consumption, the standby power consumption of each equipment is as follows after tested: the about 4W of ATX power supply itself, the not enough 0.7W of the mainboard of computer, the about 8W of display, the about 12W of printer, the about 4W of ADSL, audio amplifier 4W, effect by analyzing these parts or electricity consumption of equipment as can be seen, having only the power consumption of computer main board when computer standby or shutdown is effective power consumption, be used to keep keyboard and mouse to wake up and functions such as remote opening, and ATX power supply itself, display, printer, ADSL, the power consumption of audio amplifier all is invalid power consumption, therefore effective power consumption 0.7W that only has an appointment during the computer standby, above-mentioned power consumption is invalid power consumption entirely during shutdown, all invalid power consumptions add up and generally all surpass 25W, if the time of every average standby every day of computer and shutdown accumulative total is 16 hours, invalid power consumption only calculates by average 15W, then power consumption every day 0.24 is spent, about 88 degree of annual standby power consumption, more than 7,000 ten thousand computers in the whole nation, annual standby power consumption amount surpass 6,000,000,000 degree.

Under existing technical conditions, the standby energy consumption of computer is reduced to optimal situation should be: only keep effective power consumption, eliminate all invalid power consumptions, promptly only keep the standby power consumption of mainboard, have the power up function of waking up to guarantee it.

Application number provides a kind of computer standby zero power consumption control device for 200720131610.0 Chinese patent, can cut off the function of AC power when having realized shut down of computer, the purpose of computer and peripherals zero-power when reaching shutdown, its weak point is that this device makes computer lose idle function, after " standby " or the Close button with click shutdown interface, this device just cuts off alternating circuit, cause to use keyboard, mouse wakes up and the remote opening function, can only manually start shooting, make computer function disappearance, this device uses the phone-line-powered wiring that the makes computer more complicated that becomes in addition; Also have some to have the socket of teleswitch function on the market, also can cut off the electricity supply during shutdown, its weak point is complex structure, and cost is higher, and also there is power consumption in this device itself when standby.

Summary of the invention

In order to overcome the deficiency that prior art exists, the objective of the invention is to make computer when standby or shutdown, can cut off the alternating circuit of computer power itself and peripherals automatically, can also continue to main board power supply to guarantee that computer has keyboard, mouse wakes up and the remote opening function after cutting off alternating circuit, when start, can connect alternating circuit automatically again, thereby eliminate invalid stand-by power consumption, energy savings.

A kind of computer power of quasi-zero power consumption standby, comprise ATX power supply, reset button switch, exchange accessory power outlet and readiness control circuit, it is characterized in that: readiness control circuit comprises storage capacitor, control relay circuit and voltage triggering circuit, storage capacitor be connected the ATX power supply+5VSB power lead and ground wire between; Control relay circuit comprises relay and double control switch circuit, and relay input end and double control switch circuit series connection back are in parallel with storage capacitor; Voltage triggering circuit and storage capacitor parallel connection, the output terminal of trigger circuit is connected with a control end of double control switch circuit, and the PS-ON signal wire of ATX power supply is connected with another control end of double control switch circuit; Be connected in the ac input circuit of ATX power supply after the output terminal of relay and the reset button switch in parallel; It is in parallel with the ATX power supply to exchange accessory power outlet.

The computer power of a kind of quasi-zero power consumption standby of the present invention, its feature also is: described voltage triggering circuit comprises diode, the electric capacity and the voltage comparator circuit of reference voltage is provided, the anode of diode connects+the 5VSB power lead, the negative electrode of diode connects the electric capacity that reference voltage is provided, the other end ground connection of this electric capacity, the junction of diode and electric capacity is connected with the reverse input end of voltage comparator circuit; Voltage comparator circuit comprises voltage comparator, resistance R 1, resistance R 2, pull-up resistor R3, resistance R 4 and a capacitor C that is used to delay time 3, resistance R 1 and resistance R 2 series connection backs are in parallel with storage capacitor, the link of resistance R 1 and resistance R 2 is connected with the in-phase input end of voltage comparator, the output terminal of voltage comparator is connected with capacitor C 3, the other end ground connection of capacitor C 3, the output terminal of voltage comparator also are connected with a control end of double control switch circuit by resistance R 4.

The computer power of a kind of quasi-zero power consumption standby of the present invention, its feature also is: the comparator circuit of described voltage comparator for singly limitting comparer or hysteresis comparator or be made up of amplifier, if select non-open collector formula voltage comparator for use, then pull-up resistor R3 can omit.

The computer power of a kind of quasi-zero power consumption standby of the present invention, its feature also is: the positive-negative-positive triode that described double control switch circuit is two parallel connections is formed, the base stage of a triode is connected with the PS-ON signal wire of ATX power supply, and the base stage of another triode is connected with the output terminal of voltage comparator circuit.

The present invention is the improvement to existing ATX Switching Power Supply, after computer rigidly connects logical electric main, click pushbutton switch, the ATX power supply gets, + 5VSB output terminal output+5V direct current, storage capacitor is charged rapidly, reference capacitance also is recharged, because of diode in series on the reference capacitance has the dividing potential drop effect, so the voltage on the reference capacitance is lower than the voltage on the storage capacitor, behind the release button switch, the alternating circuit of ATX power supply is cut off, the no energy consumption of power supply itself, give the main board power supply of computer this moment by storage capacitor, if do not start shooting for a long time, the electric energy of storage capacitor is consumed, voltage reduces gradually, after the voltage between divider resistance R1 and the R2 is lower than voltage on the reference capacitance, the upset of voltage comparator output terminal, become low level by high level, trigger the conducting of positive-negative-positive triode, relay work, connect alternating circuit, the ATX power supply once more electric, storage capacitor charges once more, voltage gos up, after voltage is above the voltage on the reference capacitance, voltage comparator overturns once more, and output terminal becomes high level by low level, and delay capacitor obtains charging, the process of charging makes triode just can end after time-delay a period of time, guarantee that storage capacitor obtains enough duration of charging, triode disconnects by the output terminal that makes relay, has cut off alternating circuit once more, continue as main board power supply by storage capacitor, the energising that so can make the ATX energy supply periodic repeatedly is the storage capacitor charging, and storage capacitor is main board power supply continuously, and is very short because the ATX power supply exchanges the time of energising, thereby the power supply overwhelming majority time is in exchanges the state that disconnects, so the average power consumption of power supply is close to zero.

When booting computer, the PS-ON signal wire becomes low level, the positive-negative-positive triode conducting that triggering is attached thereto also is in the saturation conduction state always, on the storage capacitor electric energy make relay startup work, connect alternating circuit, the ATX power supply gets electric operate as normal, and the input current of relay changes by+5VSB power supply and continues to provide the computer operate as normal.

When computer needs standby or shutdown, after " standby " or the Close button with click shut down of computer interface, the PS-ON signal wire becomes high level, the triode that is attached thereto is ended, relay quits work, computer enters standby or off-mode, this moment, alternating circuit was cut off, and the ATX power supply quits work, and is that mainboard is powered continuously by storage capacitor, after electric quantity consumption voltage reduces, voltage comparator circuit triggers the double control switch circuit turn-on again and makes relay work, connects alternating circuit, is the storage capacitor charging, cut off alternating circuit again after having dashed electricity, so repeatedly, be main board power supply continuously by storage capacitor, both guaranteed that computer can normally use keyboard, mouse wakes the function with remote opening up, significantly reduced the conduction time of power supply, eliminated the stand-by power consumption of ATX power supply substantially.

Exchange the plug that accessory power outlet is used to connect porous socket, porous socket is used to connect the attaching plug of computer peripheral, comprise display, printer, ADSL, audio amplifier etc., because it is in parallel with the ATX power supply to exchange accessory power outlet, when computer standby or shutdown, the circuit that exchanges accessory power outlet also is simultaneously severed, and only of short duration connection is arranged during the storage capacitor charger, thereby has eliminated the stand-by power consumption of computer peripheral substantially.

Further improvement of the present invention: the normally closed switch of a relay of series connection in the supply line that exchanges accessory power outlet, the positive pole of relay control end is connected on the direct supply output line of computer power, such as redness+5V power lead or yellow+12V power lead, the minus earth of relay control end, this just can make computer when standby or shutdown, exchange accessory power outlet and be in dissengaged positions always, thoroughly eliminated the stand-by power consumption of computer peripheral.

The computer power of a kind of quasi-zero power consumption standby of the present invention, its feature also is: described relay all can be solid-state relay or electromagnetic relay or other any photoelectric coupling switch components and parts.

The present invention compared with prior art, advantage is: can cut off the alternating circuit of ATX power supply and peripherals automatically in computer standby or shutdown, thereby eliminate the stand-by power consumption of power supply itself and computer peripheral substantially, save electric energy greatly; When booting computer, can also connect alternating circuit automatically, both not reduce waking up and the remote opening function of computer, also not increase the step of people's normal running, not only energy-conservation but also convenient; This circuit structure is simple, and cost is extremely low, easy to implement, popularization.

Description of drawings

Fig. 1 is the circuit diagram of the embodiment of the invention 1;

Fig. 2 is the circuit diagram of the embodiment of the invention 2;

Fig. 3 is the rear view of outer casing of power supply of the present invention.

Embodiment

Embodiment 1: according to Fig. 1, in readiness control circuit, storage capacitor C2 be connected the ATX power supply+5VSB power lead and ground wire between; The input end of relay SSR and double control switch circuit series connection back are in parallel with storage capacitor C2; Voltage triggering circuit and storage capacitor C2 parallel connection, the output terminal of trigger circuit is connected with a control end 1 of double control switch circuit, and the PS-ON signal wire of ATX power supply is connected with another control end 2 of double control switch circuit; Voltage triggering circuit is made up of diode D1, capacitor C 1 and voltage comparator circuit, the anode of diode D1 connects+the 5VSB power lead, the negative electrode of diode D1 connects capacitor C 1, the other end ground connection of capacitor C 1, the junction of diode D1 and capacitor C 1 is connected with the reverse input end of voltage comparator A in the voltage comparator circuit; Voltage comparator circuit comprises voltage comparator A, resistance R 1, resistance R 2, resistance R 3, resistance R 4 and the capacitor C 3 that is used to delay time, resistance R 1 and resistance R 2 series connection backs are in parallel with storage capacitor C2, the link of resistance R 1 and resistance R 2 is connected with the in-phase input end of voltage comparator A, the output terminal of voltage comparator A is connected with capacitor C 3, the other end ground connection of capacitor C 3, resistance R 3 is connected between the output terminal of the positive pole of capacitor C 2 and voltage comparator A, and the output terminal of voltage comparator A also is connected with a control end 1 of double control switch circuit by resistance R 4; Above-mentioned double control switch circuit is made up of positive-negative-positive triode T1, the T2 of two parallel connections, the ground level of triode T1, T2 is respectively two control ends 1,2 of double control switch circuit, the base stage of triode T1 is connected with the output terminal of voltage comparator circuit, and the base stage of triode T2 is connected with the PS-ON signal wire of ATX power supply.Be connected in the ac input circuit of ATX power supply after the output terminal of relay SSR and reset button K switch 1 are in parallel; It is in parallel with the ATX power supply to exchange accessory power outlet 3.

In this embodiment, capacitor C 2 is selected the 60F super capacitor for use, diode D1 selects red light emitting diodes, its pressure drop is about 1.6V, can make capacitor C 1 remain the voltage of 3.4V, R1 gets 51K, R2 gets 200K, when standby or shutdown, whenever the voltage of capacitor C 2 drops to about 4.27V when following, voltage on the resistance R 2 just drops to below the 3.4V thereupon, be lower than the reference voltage that capacitor C 1 provides, the output terminal of comparer A is a low level by the high level upset, triode T1 conducting, solid-state relay SSR work, connect AC power, SB power lead output+5V direct current is super capacitor C2 charging, make the voltage fast rise of super capacitor C2, after its voltage surpasses 4.27V, the output terminal upset of comparer A is high level, but because capacitor C 3 chargings need a period of time, so the control end 1 of double control switch circuit can could raise by time-delay a period of time voltage gradually, triode T1 can prolong a period of time could be ended, solid-state relay SSR also can prolong a period of time and just can cut off AC power like this, thereby prolonged the duration of charging of super capacitor C2, make the voltage of super capacitor C2 can return to 5V, the time that whole charging process is about 20 seconds, during alternating circuit is cut off back+5VSB power supply no-output voltage, be main board power supply by super capacitor C2, to keep waking up of its keyboard and mouse, remote opening, functions such as timing start-up, electric current when mainboard standby or shutdown is about 0.14A, then the voltage of super capacitor C2 is about 310 seconds from the time that 5V drops to 4.27V and needs, super capacitor C2 charged once automatically in about so per 6 minutes, about 20 seconds of duration of charging, the working time of ATX power supply has only 6% of shutdown or standby T.T., thereby the stand-by power consumption of power supply itself has been reduced to original about 6%, in 94% time, the power consumption of power supply and computer peripheral device is zero, greatly reduces standby energy consumption.

Embodiment 2: as seen in Figure 2, embodiment 2 is with the difference of embodiment 1, the normally closed switch KJ of a relay J of series connection in the supply line that exchanges accessory power outlet 3, the positive pole of relay J control end is connected on the 12V direct supply output line of ATX power supply, the minus earth of relay J control end, the positive pole of electrical equipment J control end is succeeded in the plus earth of diode D2, negative electrode, and the circuit that diode D2 is constituted is the discharge loop of relay J.Present embodiment can make computer when standby or shutdown, exchanges accessory power outlet and is in dissengaged positions always, has thoroughly eliminated the stand-by power consumption of computer peripheral.

Fig. 3 is the rear view of outer casing of power supply of the present invention, exchange accessory power outlet 3 among the figure below interchange input plug 4, exchange the plug that accessory power outlet 3 is used to connect porous socket, porous socket is used to connect display, printer, ADSL, the attaching plug of computer peripherals such as audio amplifier, for peripherals provides AC power, the next door of input plug 4 is provided with a button switch K 1, need click button switch K 1 when after energized, starting shooting for the first time, because it is in parallel with the ATX power supply to exchange accessory power outlet, when computer standby or shutdown, solid-state relay SSR also cuts off the circuit that exchanges accessory power outlet when cutting off the ATX power supply, eliminated the stand-by power consumption of computer peripheral substantially.

Claims

1. the computer power of a quasi-zero power consumption standby, comprise ATX power supply, reset button switch (K1), exchange accessory power outlet (3) and readiness control circuit, it is characterized in that: readiness control circuit comprises storage capacitor (C2), control relay circuit and voltage triggering circuit, storage capacitor (C2) be connected the ATX power supply+5VSB power lead and ground wire between; Control relay circuit comprises relay SSR and double control switch circuit, and relay (SSR) input end and double control switch circuit series connection back are in parallel with storage capacitor (C2); Voltage triggering circuit and storage capacitor (C2) parallel connection, the output terminal of trigger circuit is connected with a control end (1) of double control switch circuit, and the PS-ON signal wire of ATX power supply is connected with another control end (2) of double control switch circuit; The output terminal of relay (SSR) be connected in the ac input circuit of ATX power supply after reset button switch (K1) is in parallel; It is in parallel with the ATX power supply to exchange accessory power outlet (3).

2. the computer power of a kind of quasi-zero power consumption standby according to claim 1, it is characterized in that: the normally closed switch (KJ) of a relay of series connection (J) in the supply line of described interchange accessory power outlet, the positive pole of relay (J) control end is connected on the direct supply output line of ATX power supply, the minus earth of relay (J) control end.

3. the computer power of a kind of quasi-zero power consumption standby according to claim 1, it is characterized in that: described voltage triggering circuit comprises diode (D1), electric capacity (C1) and voltage comparator circuit, the anode of diode (D1) connects+the 5VSB power lead, the negative electrode of diode (D1) connects electric capacity (C1), the other end ground connection of electric capacity (C1), the junction of diode (D1) and electric capacity (C1) is connected with the reverse input end of voltage comparator circuit.

4. the computer power of a kind of quasi-zero power consumption standby according to claim 3, it is characterized in that: described voltage comparator circuit comprises voltage comparator (A), resistance (R1), resistance (R2), resistance (R3), resistance (R4) and the electric capacity (C3) that is used to delay time, resistance (R1) and resistance (R2) series connection back are in parallel with storage capacitor (C2), the link of resistance (R1) and resistance (R2) is connected with the in-phase input end of voltage comparator (A), the output terminal of voltage comparator (A) is connected with electric capacity (C3), the other end ground connection of electric capacity (C3), resistance (R3) is connected between the output terminal of the positive pole of electric capacity (C2) and voltage comparator (A), and the output terminal of voltage comparator (A) also is connected with a control end 1 of double control switch circuit by resistance (R4).

5. according to the computer power of claim 1 or 4 described a kind of quasi-zero power consumption standbies, it is characterized in that: described double control switch circuit is made up of the positive-negative-positive triode (T1, T2) of two parallel connections, the ground level of triode (T1, T2) is respectively two control ends (1,2) of double control switch circuit, the base stage of triode (T1) and the output terminal of voltage comparator circuit are connected, and the base stage of triode (T2) is connected with the PS-ON signal wire of ATX power supply.

6. the computer power of a kind of quasi-zero power consumption standby according to claim 4 is characterized in that: the comparator circuit of described voltage comparator (A) for singly limitting comparer or hysteresis comparator or be made up of amplifier.

7. the computer power of a kind of quasi-zero power consumption standby according to claim 1 and 2, it is characterized in that: described relay (SSR, J) can be solid-state relay or electromagnetic relay or any photoelectric coupling switch components and parts.