CN104578743A - Power supply control circuit - Google Patents

Power supply control circuit Download PDF

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Publication number
CN104578743A
CN104578743A CN201310512562.XA CN201310512562A CN104578743A CN 104578743 A CN104578743 A CN 104578743A CN 201310512562 A CN201310512562 A CN 201310512562A CN 104578743 A CN104578743 A CN 104578743A
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CN
China
Prior art keywords
relay
switch
power
input
triode
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Granted
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CN201310512562.XA
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Chinese (zh)
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CN104578743B (en
Inventor
杨伸其
黄桂团
尹坤任
郭远久
戴亮
梅小红
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Midea Group Co Ltd
Guangdong Midea Consumer Electric Manufacturing Co Ltd
Guangdong Midea Life Electric Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Consumer Electric Manufacturing Co Ltd
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Priority to CN201310512562.XA priority Critical patent/CN104578743B/en
Publication of CN104578743A publication Critical patent/CN104578743A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

The invention discloses a power supply control circuit which comprises a first AC (Alternating Current) input end, a second AC input end, a switch block, a power supply conversion module and a control module, wherein the switch block comprises a trigger switch and a controllable switch; after being connected in parallel with the controllable switch, the trigger switch is connected in series with the first AC input end; the power supply conversion module is connected with the switch block and the second AC input end and is used for converting an input current into a direct current; the control module is connected with the power supply conversion module and the control end of the controllable switch; when the trigger switch is triggered, the power supply conversion module supplies power to the control module and the control module controls the controllable switch to be closed to switch on a power supply loop; and when equipment is in a standby state, the control module controls the controllable switch to be switched off so as to disconnect the power supply loop. According to the power supply control circuit disclosed by the invention, when the equipment is in the standby state, a power supply is switched off without being switched on and standby zero power consumption is realized, so that the aims of saving energy and protecting the environment are fulfilled.

Description

Power-supplying circuit
Technical field
The present invention relates to living electric apparatus field, particularly a kind of power-supplying circuit.
Background technology
At present, user is in the process using electric equipment such as soy bean milk making machine, be easy to occur plugging electricity and situation about not starting at once, or there is no timely power-off after soya-bean milk completes, now will consumption electric energy in vain, therefore, existing electric equipment such as soy bean milk making machine can not accomplish energy-conserving and environment-protective well.
Further, stand-by power consumption is an important indicator of all electrical equipment energy consumptions, and in prior art, living electric apparatus such as soy bean milk making machine cannot accomplish standby zero-power-consumption on the market, thus cannot energy savings well.
Summary of the invention
Object of the present invention is intended to solve the problems of the technologies described above at least to a certain extent.
For this reason, the present invention's object be propose a kind of power-supplying circuit for equipment, device standby or work complete a period of time enter standby unattended time, make power supply disconnect access failure, realize standby zero-power-consumption, thus reach the object of energy-conserving and environment-protective.
For achieving the above object, a kind of power-supplying circuit that embodiments of the invention propose, comprising: the first ac input end and the second ac input end; Switches set, described switches set comprises trigger switch and gate-controlled switch, is connected on described first ac input end after described trigger switch and described gate-controlled switch are connected in parallel; Power transfer module, described power transfer module is connected with described second ac input end with described switches set, and described power transfer module is used for the alternating current of input to be converted to direct current; Control module, described control module is connected with the control end of described power transfer module with described gate-controlled switch, wherein, when described trigger switch is triggered, described power transfer module powers to described control module, it is closed to connect current supply circuit that described control module controls described gate-controlled switch, and when device standby, described control module controls described gate-controlled switch and disconnects to disconnect described current supply circuit.
According to the power-supplying circuit of the embodiment of the present invention, the trigger switch of parallel connection and gate-controlled switch are connected on the first ac input end, and after switch triggering is triggered, control module controls gate-controlled switch and closes, current supply circuit is connected, at this moment trigger switch disconnects, and when device standby, control module controls gate-controlled switch and disconnects, current supply circuit is disconnected, power supply access failure, thus realize device standby zero-power, thus reach the object of energy-conserving and environment-protective.
Preferably, in one embodiment of the invention, described trigger switch can be button or optoelectronic switch.
Wherein, in one embodiment of the invention, when described trigger switch is described button, closed when described button is pressed, disconnect when unclamping.
Preferably, in one embodiment of the invention, described gate-controlled switch can be relay or controllable silicon.
Further, in one embodiment of the invention, when described gate-controlled switch is the first relay, switch in described first relay is in parallel with described trigger switch, one end of coil in described first relay is connected with described power transfer module, and the other end of the coil in described first relay is connected with described control module.
Wherein, in one embodiment of the invention, described control module comprises: the first diode, and the anode of described first diode is connected with the other end of the coil in described first relay, and the negative electrode of described first diode is connected with one end of the coil in described first relay; First triode, the collector electrode of described first triode is connected with the other end of the coil in described first relay, the grounded emitter of described first triode; Control chip, the power pin of described control chip is connected with described power transfer module, and first of described control chip controls pin and is connected with the base stage of described first triode; Second triode, the base stage of described second triode and second of described control chip controls pin and is connected, the grounded emitter of described second triode; Second relay, one end of coil in described second relay is connected with the collector electrode of described second triode, the other end of the coil in described second relay is connected with described power transfer module, one end of switch in described second relay is connected with described second ac input end, and the other end of the switch in described second relay is connected with load; Second diode, the anode of described second diode is connected with the collector electrode of described second triode, and the negative electrode of described second diode is connected with the other end of the coil in described second relay.
Further, in one embodiment of the invention, when described trigger switch is two-way button, first via button in described two-way button is in parallel with described gate-controlled switch, one end ground connection of the second road button in described two-way button, the other end of described second road button is connected with described control chip.
In one embodiment of the invention, described power transfer module comprises: transformer, and the input of described transformer is connected with described second ac input end with described switches set; Rectifier bridge, the input of described rectifier bridge is connected with the output of described transformer, and described rectifier bridge is used for carrying out rectification to generate Rectified alternating current to the alternating current that described transformer exports; First filter, described first filter is connected with the output of described rectifier bridge, and described first filter is used for carrying out filtering to generate the direct current of the first predeterminated voltage to described Rectified alternating current; Voltage conversion unit, the input of described voltage conversion unit is connected with described first filter, and described voltage conversion unit is used for the direct current direct current of described first predeterminated voltage being converted to the second predeterminated voltage.
Particularly, in one embodiment of the invention, described first predeterminated voltage can be 8 ~ 16V, and described second predeterminated voltage can be 3 ~ 6V.
In one embodiment of the invention, also comprise display module, described display module is connected with described control module.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the block diagram of power-supplying circuit according to an embodiment of the invention;
Fig. 2 is the circuit diagram of power-supplying circuit according to an embodiment of the invention; And
Fig. 3 is the circuit diagram of power-supplying circuit in accordance with another embodiment of the present invention.
Reference numeral:
First ac input end 100, second ac input end 200, switches set 300, power transfer module 400, control module 500, display module 600 and load 700, trigger switch 301, gate-controlled switch 302, rectifier bridge 401, first filter 402 and voltage conversion unit 403, first diode D1, second diode D2, first triode Q1, second triode Q2, control chip U1, first relay K 1, second relay K 2, first electrochemical capacitor EC1, second electrochemical capacitor EC2, first electric capacity C1, second electric capacity C2, voltage stabilizing chip U2, LED 1, transformer T1 and resistance R1.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The power-supplying circuit proposed according to the embodiment of the present invention is described with reference to the accompanying drawings.
As shown in Figure 1, according to the power-supplying circuit that the embodiment of the present invention proposes, the first ac input end 100, second ac input end 200, switches set 300, power transfer module 400 and control module 500 is comprised.
Wherein, switches set 300 comprises trigger switch 301 and gate-controlled switch 302, is connected on the first ac input end 100 after trigger switch 301 and gate-controlled switch 302 are connected in parallel.Power transfer module 400 is connected with the second ac input end 200 with switches set 300, and power transfer module 400 is for being converted to direct current by the alternating current of input.Control module 500 is connected with the control end of power transfer module 400 with gate-controlled switch 302, wherein, when trigger switch 301 is triggered, power transfer module 400 powers to control module 500, and it is closed to connect current supply circuit that control module 500 controls gate-controlled switch 302, and when device standby, control module 500 controls gate-controlled switch 302 and disconnects current supply circuit, thus disconnection power supply, make device standby power consumption be zero, energy savings.
In one embodiment of the invention, trigger switch 301 can be button or optoelectronic switch.Preferably, when trigger switch 301 is button, closed when button is pressed, disconnect when unclamping.Namely say, when have need to carry out work time, the i.e. trigger switch 301 that pushes button is triggered, power supply gives whole circuit supply, and control module 500 carries out work, and it is closed to control gate-controlled switch 302, now, unclamp button, power supply continues to whole circuit supply, until during device standby, control module 500 controls gate-controlled switch 302 and disconnects, the current supply circuit of off device, makes device standby power consumption be zero, energy-conserving and environment-protective.
In one embodiment of the invention, gate-controlled switch 302 can be relay or controllable silicon.Preferably, when gate-controlled switch is the first relay K 1, as shown in Figure 2, switch in first relay K 1 is in parallel with trigger switch 301, the one end of coil in first relay K 1 change with power transfer module 400 i.e. power transfer module 400 after the power end of the first predeterminated voltage such as 12V be connected, the other end of the coil in the first relay K 1 is connected with control module 500.
In one embodiment of the invention, as shown in Figure 2, control module 500 comprises: the first diode D1, the first triode Q1, control chip U1, the second triode Q2, the second relay K 2 and the second diode D2.
Wherein, the anode of the first diode D1 is connected with the other end of the coil in the first relay K 1, and the negative electrode of the first diode D1 is connected with one end of the coil in the first relay K 1.The collector electrode of the first triode Q1 is connected with the other end of the coil in the first relay K 1, the grounded emitter of the first triode Q1.The power pin 1 of control chip U1 change with power transfer module 400 i.e. power transfer module 400 after the second predeterminated voltage VCC hold and be connected, first of control chip U1 controls pin 3 directly or be connected by the base stage of resistance with the first triode Q1.The base stage of the second triode Q2 directly or control pin 6 by resistance with second of control chip U1 and be connected, the grounded emitter of the second triode Q2.One end of the coil of the second relay K 2 is connected with the collector electrode of the second triode Q2, the other end of the coil in the second relay K 2 change with power transfer module 400 i.e. power transfer module 400 after the power end of the first predeterminated voltage such as 12V be connected.One end of switch in second relay K 2 is connected with the second ac input end 200 such as live wire L, and the other end of the switch in the second relay K 2 is connected with load 700 such as heating wire.The anode of the second diode D2 is connected with the collector electrode of the second triode Q2, and the negative electrode of the second diode D2 is connected with the other end of the coil of K2 in the second relay.
In an embodiment of the present invention, when gate-controlled switch is the first relay K 1, when trigger switch 301 is button, when button is pressed, power transfer module 400 obtains alternating current by the first ac input end 100 and the second ac input end 200, and alternating current is converted to direct current to power to control module 500, wherein control chip U1 starts working, export high level signal to the first triode Q1, first triode Q1 conducting, thus the switch controlled in the first relay K 1 closes, connect power supply circuits.Now, unclamp button, because the switch in the first relay K 1 closes, circuit is work as usual, and circuit can start to perform corresponding program normally.Such as control chip U1 exports high level to the second triode Q2, the second triode Q2 conducting, thus the switch controlled in the second relay K 2 closes control load 700 carries out work.When work completes or unattended i.e. equipment needs are standby for a long time, control chip U1 is disconnected with the switch controlled in the first relay K 1 by output low level signal to the first triode Q1, the alternating current of input cannot access whole circuit, power supply access failure, now circuit does not produce any power consumption, realizes equipment zero stand-by power consumption.
It should be noted that, the said equipment can also be the household electrical appliance such as electronic kettle, juice extractor, blender, rice cooker, pressure cooker, magnetic stove, lampblack absorber, kitchen range, but is not limited to this.
In another embodiment of the present invention, as shown in Figure 3, when trigger switch 301 is two-way button, first via button a in two-way button is in parallel with gate-controlled switch 302, direct or the ground connection in series with a resistor in the one end of the second road button b in two-way button, the other end of the second road button b is directly or by being connected with control chip U1.Namely say, when trigger switch 301 is two-way button, trigger switch 301 is integrated in existing function button, like this, trigger switch 301 both as activating machine use, also can use as normal function button, and not needing increases extra switch to realize the function of zero-power.
That is, no matter trigger switch 301 is single channel button or two-way button, or the structure of similar single channel or two-way button, cut off the electricity supply when can realize device standby as long as in parallel with gate-controlled switch 302, realize device standby zero-power.
In one embodiment of the invention, as shown in Figure 2 or Figure 3, power transfer module 400 comprises: transformer T1, rectifier bridge 401, first filter 402 and voltage conversion unit 403.
Wherein, the input of transformer T1 is connected with the second ac input end 200 such as live wire L with switches set 300.The input 1,3 of rectifier bridge 401 is connected with the output of transformer T1, and rectifier bridge 401 carries out rectification to generate Rectified alternating current for the alternating current exported transformer T1.First filter 402 is connected with the output 2,4 of rectifier bridge 401, first filter 402 is for carrying out filtering to generate the direct current of the first predeterminated voltage such as 12V to Rectified alternating current, wherein, the first filter 402 is composed in parallel by the first electrochemical capacitor EC1 and the first electric capacity C1.The input Vin of voltage conversion unit 403 is connected with the first filter 402, voltage conversion unit 403 is for being converted to the power supply VCC of the direct current such as 3V of the second predeterminated voltage by the direct current of the first predeterminated voltage, wherein, voltage conversion unit 403 is made up of voltage stabilizing chip U2 and the second electrochemical capacitor EC2, the second electric capacity C2 be connected in parallel between the output end vo ut of voltage stabilizing chip U2 and ground GND.
That is, when trigger switch 301 is button, when gate-controlled switch is relay, when button is pressed, the alternating current of input accesses transformer T1 through trigger switch 301, the alternating current that transformer T1 exports carries out rectification to generate Rectified alternating current through rectifier bridge 401, first 402 pairs, filter Rectified alternating current carries out filtering to generate the direct current of the first predeterminated voltage such as 12V, the direct current of the first predeterminated voltage is converted to the direct current of the second predeterminated voltage such as 3V by voltage conversion unit 403, wherein, the direct current of the first predeterminated voltage is that relay is powered, the direct current of the second predeterminated voltage is powered to control chip U1.Namely say, after power transfer module 400 is connected, step-down and voltage stabilizing are carried out to the alternating current of input, supplies the voltage that other unit is stable.
Wherein, in one particular embodiment of the present invention, the first predeterminated voltage can be 8 ~ 16V, and the second predeterminated voltage can be 3 ~ 6V.
In one embodiment of the invention, as shown in Figure 2 or Figure 3, this power-supplying circuit also comprises display module 600.Wherein, display module 600 is connected with control module 500.More specifically, display module 600 comprises: LED 1 and resistance R1.Wherein, the other end of resistance R1 and the 3rd of control chip U1 the controls pin 7 and is connected, and one end of resistance R1 is connected with one end of LED 1, the other end ground connection of LED 1.Such as when trigger switch 301 is button, display module 600 processes for receiving push button signalling and delivering to control module 500, and display module 600 receives the drive singal driving interface display of control module 500 simultaneously.
According to the power-supplying circuit of the embodiment of the present invention, the trigger switch of parallel connection and gate-controlled switch are connected on the first ac input end, and after switch triggering is triggered, control module controls gate-controlled switch and closes, current supply circuit is connected, at this moment trigger switch disconnects, and when device standby, control module controls gate-controlled switch and disconnects, current supply circuit is disconnected, power supply access failure, thus realize device standby zero-power, thus reach the object of energy-conserving and environment-protective.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.

Claims (10)

1. a power-supplying circuit, is characterized in that, comprising:
First ac input end and the second ac input end;
Switches set, described switches set comprises trigger switch and gate-controlled switch, is connected on described first ac input end after described trigger switch and described gate-controlled switch are connected in parallel;
Power transfer module, described power transfer module is connected with described second ac input end with described switches set, and described power transfer module is used for the alternating current of input to be converted to direct current;
Control module, described control module is connected with the control end of described power transfer module with described gate-controlled switch, wherein, when described trigger switch is triggered, described power transfer module powers to described control module, it is closed to connect current supply circuit that described control module controls described gate-controlled switch, and when device standby, described control module controls described gate-controlled switch and disconnects to disconnect described current supply circuit.
2. power-supplying circuit as claimed in claim 1, it is characterized in that, described trigger switch is button or optoelectronic switch.
3. power-supplying circuit as claimed in claim 2, is characterized in that, when described trigger switch is described button, closed when described button is pressed, and disconnects when unclamping.
4. the power-supplying circuit according to any one of claim 1-3, is characterized in that, described gate-controlled switch is relay or controllable silicon.
5. power-supplying circuit as claimed in claim 4, it is characterized in that, when described gate-controlled switch is the first relay, switch in described first relay is in parallel with described trigger switch, one end of coil in described first relay is connected with described power transfer module, and the other end of the coil in described first relay is connected with described control module.
6. power-supplying circuit as claimed in claim 5, it is characterized in that, described control module comprises:
First diode, the anode of described first diode is connected with the other end of the coil in described first relay, and the negative electrode of described first diode is connected with one end of the coil in described first relay;
First triode, the collector electrode of described first triode is connected with the other end of the coil in described first relay, the grounded emitter of described first triode;
Control chip, the power pin of described control chip is connected with described power transfer module, and first of described control chip controls pin and is connected with the base stage of described first triode;
Second triode, the base stage of described second triode and second of described control chip controls pin and is connected, the grounded emitter of described second triode;
Second relay, one end of coil in described second relay is connected with the collector electrode of described second triode, the other end of the coil in described second relay is connected with described power transfer module, one end of switch in described second relay is connected with described second ac input end, and the other end of the switch in described second relay is connected with load;
Second diode, the anode of described second diode is connected with the collector electrode of described second triode, and the negative electrode of described second diode is connected with the other end of the coil in described second relay.
7. power-supplying circuit as claimed in claim 6, it is characterized in that, when described trigger switch is two-way button, first via button in described two-way button is in parallel with described gate-controlled switch, the direct ground connection in one end of the second road button in described two-way button, the other end of described second road button is connected with described control chip.
8. power-supplying circuit as claimed in claim 1, it is characterized in that, described power transfer module comprises:
Transformer, the input of described transformer is connected with described second ac input end with described switches set;
Rectifier bridge, the input of described rectifier bridge is connected with the output of described transformer, and described rectifier bridge is used for carrying out rectification to generate Rectified alternating current to the alternating current that described transformer exports;
First filter, described first filter is connected with the output of described rectifier bridge, and described first filter is used for carrying out filtering to generate the direct current of the first predeterminated voltage to described Rectified alternating current;
Voltage conversion unit, the input of described voltage conversion unit is connected with described first filter, and described voltage conversion unit is used for the direct current direct current of described first predeterminated voltage being converted to the second predeterminated voltage.
9. power-supplying circuit as claimed in claim 8, it is characterized in that, described first predeterminated voltage is 8 ~ 16V, and described second predeterminated voltage is 3 ~ 6V.
10. power-supplying circuit as claimed in claim 1, it is characterized in that, also comprise display module, described display module is connected with described control module.
CN201310512562.XA 2013-10-25 2013-10-25 Power-supplying circuit Active CN104578743B (en)

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CN105929741B (en) * 2016-05-31 2018-12-25 武汉烽火众智数字技术有限责任公司 A kind of zero standby power consumption radio alarming press key equipment
CN107358932A (en) * 2017-09-14 2017-11-17 京东方科技集团股份有限公司 A kind of power control circuit and method, display device
CN107358932B (en) * 2017-09-14 2019-10-29 京东方科技集团股份有限公司 A kind of power control circuit and method, display device
CN111525785A (en) * 2020-05-07 2020-08-11 冯玉明 Electronic appliance automatic power-off standby power supply circuit chip control circuit

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