CN210776362U - Power supply zero-power-consumption control circuit and electronic equipment - Google Patents
Power supply zero-power-consumption control circuit and electronic equipment Download PDFInfo
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- CN210776362U CN210776362U CN201922001635.4U CN201922001635U CN210776362U CN 210776362 U CN210776362 U CN 210776362U CN 201922001635 U CN201922001635 U CN 201922001635U CN 210776362 U CN210776362 U CN 210776362U
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Abstract
The utility model relates to a power zero-power consumption control circuit and electronic equipment. The input end of a voltage division circuit in the power supply zero power consumption control circuit is connected with the anode of a power supply battery, the first output end of the voltage division circuit is grounded through a key switch, and the first output end of the voltage division circuit is grounded through a first switch circuit and a second switch circuit which are connected in series; the second output end of the voltage division circuit is connected with the first input end of the linear voltage stabilizing circuit, the second input end of the linear voltage stabilizing circuit is connected with the anode of the power supply battery, and the output end of the linear voltage stabilizing circuit is respectively connected with the input end of the first switch circuit and the input end of the voltage reduction circuit. The utility model can effectively avoid the invalid power consumption of the battery, save resources and use cost, protect the service life of the battery and reduce the pollution of the waste battery to the environment; meanwhile, the functions of startup and shutdown and mode switching are completed by one key switch, so that the manufacturing cost can be effectively reduced, and the use of a user is more convenient.
Description
Technical Field
The utility model relates to a power field, more specifically say, relate to a power zero-power consumption control circuit and electronic equipment.
Background
The battery obtains extensive use as main power supply system on many consumer, if the consumer does not cut off the circuit that links to each other with the battery in the shutdown state, then can produce invalid consumption, accelerate the power consumptive of battery, further causes great use cost and wasting of resources to greatly reduced battery's life, simultaneously old and useless battery is handled improper and can aggravate the pollution to the environment. The above problems exist in the prior art because the power-off state of the electric equipment does not cut off the circuit connected with the battery.
The power management circuit of the electric equipment taking the battery as the power supply system mostly takes the slide switch and the ship-shaped switch as the power switch and the mode change-over switch, which greatly increases the manufacturing cost; or a plurality of keys are used for switching the circuit mode, thereby realizing the corresponding function; but each key has a single function, which complicates the use process of the user.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a power zero-power consumption control circuit and electronic equipment are provided.
The utility model provides a technical embodiment that its technical problem adopted is: the power supply zero-power-consumption control circuit is constructed and comprises a key switch, a processor, a linear voltage stabilizing circuit, a voltage reducing circuit, a voltage dividing circuit, a first switch circuit, a second switch circuit and a third switch circuit;
the input end of the voltage division circuit is connected with the anode of a power supply battery, the first output end of the voltage division circuit is grounded through the key switch, and the first output end of the voltage division circuit is grounded through the first switch circuit and the second switch circuit which are connected in series; the second output end of the voltage division circuit is connected with the first input end of the linear voltage stabilizing circuit, the second input end of the linear voltage stabilizing circuit is connected with the anode of the power supply battery, and the output end of the linear voltage stabilizing circuit is respectively connected with the input end of the first switch circuit and the input end of the voltage reduction circuit;
the output end of the voltage reduction circuit is connected with the power supply end of the processor, and the output end of the voltage reduction circuit is connected with the connection point of the key switch and the first output end of the voltage division circuit through the third switch circuit; the output end of the third switch circuit is connected with the detection pin of the processor, the first output end of the processor is connected with the input end of the second switch circuit, and the second output end of the processor is connected with the load.
Further, in the power supply zero power consumption control circuit of the present invention, the voltage dividing circuit includes a voltage dividing resistor R1 and a voltage dividing resistor R3;
the positive pole of power supply battery is connected to divider resistance R1's first end, divider resistance R1's second end is connected divider resistance R3's first end, divider resistance R3's second end is passed through key switch ground connection, resistance R1 with resistance R3's tie point is voltage divider circuit's second output.
Further, in the power zero power consumption control circuit of the present invention, the linear voltage regulator circuit includes a transistor Q1, a MOS transistor Q2, a resistor R2, a capacitor C1, a capacitor C2, and a zener diode D1;
the collector of the triode Q1 is connected with the anode of the power supply battery; the emitter of the transistor Q1 is respectively connected with the input end of the first switch circuit and the input end of the voltage reduction circuit, and the emitter of the transistor Q1 is grounded through the capacitor C1; the base electrode of the triode Q1 is connected with the negative electrode of the voltage stabilizing diode D1, and the positive electrode of the voltage stabilizing diode D1 is grounded; the base electrode of the triode Q1 is connected with the drain electrode of the MOS tube Q2 through the resistor R2, and the drain electrode of the MOS tube Q2 is grounded through the capacitor C2; the grid electrode of the MOS transistor Q2 is connected with the connection point of the voltage dividing resistor R1 and the voltage dividing resistor R3, and the source electrode of the MOS transistor Q2 is connected with the anode of the power supply battery.
Further, in the power zero power consumption control circuit of the present invention, the first switch circuit includes a transistor Q3, a voltage dividing resistor R4, and a voltage dividing resistor R5;
the collector of the triode Q3 is connected with the first output end of the voltage division circuit, the base of the triode Q3 is connected with the output end of the linear voltage stabilizing circuit through the voltage division resistor R4, and the base of the triode Q3 is grounded through the voltage division resistor R5; and the emitter of the triode Q3 is connected with the second switching circuit.
Furthermore, the power supply zero power consumption control circuit of the present invention further comprises a diode D2 and a diode D3;
the first output end of the voltage division circuit is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the collector of the triode Q3; the first output end of the voltage division circuit is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the key switch.
Further, in the power zero power consumption control circuit of the present invention, the second switch circuit includes a transistor Q5, a divider resistor R8, and a divider resistor R10;
the collector of the triode Q5 is connected with the emitter of the triode Q3, the base of the triode Q5 is grounded through the voltage-dividing resistor R10, and the base of the triode Q5 is connected with the first output end of the processor through the voltage-dividing resistor R8; the emitter of the transistor Q5 is grounded.
Further, in the power zero power consumption control circuit of the present invention, the third switch circuit includes a transistor Q4, a divider resistor R6, and a divider resistor R7;
the emitter of the triode Q4 is connected with the output end of the voltage reduction circuit, the base of the triode Q4 is connected with the output end of the voltage reduction circuit through a voltage division resistor R6, and the base of the triode Q4 is connected with the connection point of the key switch and the first output end of the voltage division circuit through a voltage division resistor R7; the collector of the triode Q4 is connected with the detection pin of the processor.
Furthermore, the power supply zero power consumption control circuit of the present invention further comprises a resistor R9 and a diode D4;
the collector of the triode Q4 is grounded through the resistor R9; the base of the triode Q4 is connected with the anode of the diode D4 through the resistor R7, and the cathode of the diode D4 is connected with the connection point of the key switch and the first output end of the voltage division circuit.
Further, power zero-power control circuit in, the treater is STM32F030 singlechip.
Additionally, the utility model provides an electronic equipment, electronic equipment includes power supply battery, electronic equipment still includes as above-mentioned power zero power consumption control circuit, power zero power consumption control circuit connects power supply battery.
Implement the utility model discloses a power zero-power consumption control circuit and electronic equipment has following beneficial effect: the utility model can effectively avoid the invalid power consumption of the battery, save resources and use cost, protect the service life of the battery and reduce the pollution of the waste battery to the environment; meanwhile, the functions of startup and shutdown and mode switching are completed by one key switch, so that the manufacturing cost can be effectively reduced, and the use of a user is more convenient.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of a power supply zero power consumption control circuit according to an embodiment;
FIG. 2 is a circuit diagram of a zero power consumption control circuit of a power supply according to an embodiment;
fig. 3 is a flowchart illustrating an operation of a power supply zero power consumption control circuit according to an embodiment.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Examples
Referring to fig. 1, the power supply zero power consumption control circuit of this embodiment includes a key switch, a processor, a linear voltage stabilizing circuit, a voltage dropping circuit, a voltage dividing circuit, a first switch circuit, a second switch circuit, and a third switch circuit, where an input end of the voltage dividing circuit is connected to an anode of a power supply battery, a first output end of the voltage dividing circuit is grounded through the key switch, and a first output end of the voltage dividing circuit is grounded through the first switch circuit and the second switch circuit connected in series; the second output end of the voltage division circuit is connected with the first input end of the linear voltage stabilizing circuit, the second input end of the linear voltage stabilizing circuit is connected with the anode of the power supply battery, and the output end of the linear voltage stabilizing circuit is respectively connected with the input end of the first switch circuit and the input end of the voltage reduction circuit; the output end of the voltage reduction circuit is connected with the power supply end of the processor, and the output end of the voltage reduction circuit is connected with the connection point of the key switch and the first output end of the voltage division circuit through a third switch circuit; the output end of the third switch circuit is connected with the detection pin of the processor, the first output end of the processor is connected with the input end of the second switch circuit, and the second output end of the processor is connected with the load.
The embodiment can effectively avoid the invalid power consumption of the battery, save resources and use cost, protect the service life of the battery and reduce the pollution of the waste battery to the environment; meanwhile, the functions of startup and shutdown and mode switching are completed by one key switch, so that the manufacturing cost can be effectively reduced, and the use of a user is more convenient.
Examples
Referring to fig. 2, on the basis of the above embodiment, the voltage dividing circuit in the power supply zero power consumption control circuit of the present embodiment includes a voltage dividing resistor R1 and a voltage dividing resistor R3; the first end of divider resistance R1 connects the anodal of power supply battery, and the first end of divider resistance R3 is connected to the second end of divider resistance R1, and the second end of divider resistance R3 passes through key switch ground connection, and the tie point of resistance R1 and resistance R3 is bleeder circuit's second output.
Optionally, in the zero power consumption control circuit of the present embodiment, the linear voltage regulator circuit includes a transistor Q1, a MOS transistor Q2, a resistor R2, a capacitor C1, a capacitor C2, and a zener diode D1; the collector of the triode Q1 is connected with the anode of the power supply battery; the emitter of the triode Q1 is respectively connected with the input end of the first switching circuit and the input end of the voltage reduction circuit, and the emitter of the triode Q1 is grounded through a capacitor C1; the base electrode of the triode Q1 is connected with the negative electrode of the voltage stabilizing diode D1, and the positive electrode of the voltage stabilizing diode D1 is grounded; the base electrode of the triode Q1 is connected with the drain electrode of the MOS tube Q2 through a resistor R2, and the drain electrode of the MOS tube Q2 is grounded through a capacitor C2; the gate of the MOS transistor Q2 is connected to the connection point of the voltage dividing resistor R1 and the voltage dividing resistor R3, and the source of the MOS transistor Q2 is connected to the positive electrode of the power supply battery.
Alternatively, in the power supply zero power consumption control circuit of the present embodiment, the first switch circuit includes a transistor Q3, a voltage-dividing resistor R4, and a voltage-dividing resistor R5; the collector of the triode Q3 is connected with the first output end of the voltage division circuit, the base of the triode Q3 is connected with the output end of the linear voltage stabilizing circuit through a voltage division resistor R4, and the base of the triode Q3 is grounded through a voltage division resistor R5; the emitter of the transistor Q3 is connected to the second switching circuit.
Optionally, in the power supply zero power consumption control circuit of the present embodiment, a diode D2 and a diode D3 are further included; the first output end of the voltage division circuit is connected with the anode of a diode D2, and the cathode of a diode D2 is connected with the collector of a triode Q3; the first output end of the voltage division circuit is connected with the anode of a diode D3, and the cathode of a diode D3 is connected with a key switch.
Alternatively, in the power zero power consumption control circuit of the present embodiment, the second switch circuit includes a transistor Q5, a voltage-dividing resistor R8, and a voltage-dividing resistor R10; the collector of the triode Q5 is connected with the emitter of the triode Q3, the base of the triode Q5 is grounded through a divider resistor R10, and the base of the triode Q5 is connected with the first output end of the processor through a divider resistor R8; the emitter of transistor Q5 is connected to ground.
Alternatively, in the zero power consumption control circuit of the present embodiment, the third switching circuit includes a transistor Q4, a voltage-dividing resistor R6, and a voltage-dividing resistor R7; an emitter of the triode Q4 is connected with the output end of the voltage reduction circuit, a base of the triode Q4 is connected with the output end of the voltage reduction circuit through a voltage division resistor R6, and a base of the triode Q4 is connected with a connection point of the key switch and the first output end of the voltage division circuit through a voltage division resistor R7; the collector of transistor Q4 is connected to the sense pin of the processor.
Optionally, in the power supply zero power consumption control circuit of the present embodiment, a resistor R9 and a diode D4 are further included; the collector of the triode Q4 is grounded through a resistor R9; the base of the triode Q4 is connected with the anode of the diode D4 through the resistor R7, and the cathode of the diode D4 is connected with the connection point of the key switch and the first output end of the voltage division circuit.
Alternatively, in the power supply zero power consumption control circuit of the embodiment, the processor is an STM32F030 single chip microcomputer.
The embodiment can effectively avoid the invalid power consumption of the battery, save resources and use cost, protect the service life of the battery and reduce the pollution of the waste battery to the environment; meanwhile, the functions of startup and shutdown and mode switching are completed by one key switch, so that the manufacturing cost can be effectively reduced, and the use of a user is more convenient.
Examples
As shown in fig. 1, fig. 2, and fig. 3, the operation process of the power zero-power control circuit and the electronic device of the present embodiment will be described in detail.
Firstly, a starting process:
as shown in fig. 2, when the key switch SW1 is pressed for the first time, the positive electrode of the battery, the resistor R1, the resistor R3, the diode D3 and the key switch SW1 form a loop with the ground, and the MOS transistor Q2 is turned on under the partial pressure action of the resistor R1 and the resistor R3; the linear voltage stabilizing circuit further composed of a triode Q1, a MOS tube Q2, a resistor R2, a capacitor C1, a capacitor C2 and a zener diode D1 starts to work and outputs through an emitter of the triode Q1. The output of the linear voltage stabilizer is divided into two paths, one path is supplied to the voltage reduction unit, and the other path forms a loop with the ground through a resistor R4 and a resistor R5; the transistor Q3 is turned on by the voltage division of the resistor R4 and the resistor R5, that is, the first switch circuit is turned on. The output of the voltage reduction unit is divided into two paths, one path supplies power to the singlechip, and the other path supplies power to the third switch circuit. The resistor R6, the resistor R7, the diode D4 and the key switch SW1 of the third switch circuit form a loop with the ground. Further, the transistor Q4 is turned on, i.e., the third switching circuit is turned on. When the third switch circuit is turned on, the collector of the transistor Q4 changes from low to high. As shown in fig. 3, the detection pin of the single chip detects the collector level change of Q4; when the detection pin of the single chip microcomputer detects that the collector of the triode Q4 is at a high level, the first output end of the single chip microcomputer outputs the high level to enable the triode Q5 of the second switching circuit to be conducted. At this time, the triodes Q3 and Q5 are conducted, namely the first switch circuit and the second switch circuit are both conducted; furthermore, the first switch circuit and the second switch circuit are connected in series and form a self-locking structure with the key switch. When the key switch SW1 is reset, a loop formed by the battery anode and the resistor R1, the resistor R3, the diode D3 and the key switch SW1 and the ground is disconnected, and the loop is replaced by the battery anode and the resistor R1, the resistor R3, the diode D2, the triode Q3, the triode Q5 and the ground loop, so that the continuous operation of the circuit is ensured; meanwhile, the output of the voltage reduction circuit is disconnected with a loop formed by the resistor R6, the resistor R7, the diode D4 and the key switch SW1 and the ground, the triode Q4 is further cut off, namely the third switch circuit is disconnected, and the collector of the triode Q4 is restored to the low level from the high level. As shown in fig. 3, after the detection pin of the single chip detects a low level, the booting process is ended; and further, a second output end of the singlechip controls the load to complete corresponding functions, and a detection pin of the singlechip is configured into an input capture mode for detecting the closing time of the key switch and completing mode switching and shutdown of the load according to the closing time of the key.
II, mode switching process:
as shown in fig. 1 and 2, after the electric device is powered on and operated, when the push switch SW1 is pressed again, the third switch circuit is turned on, and further, the collector of the transistor Q4 changes from low level to high level; when the push switch SW1 is reset, the third switch circuit is turned off, and the collector of the transistor Q4 is turned from high to low. Further, the pressing and resetting of the key switch SW1 forms a high level with a certain time width at the collector of the transistor Q4; at this time, the singlechip detects that the pin captures the duration time of the high level of the collector of the triode Q4, namely the key switch closing time. As shown in fig. 3, further when the duration of the high level is captured as a short time, the functional circuit of the single chip microcomputer control enters the next set mode, the mode type is set by the program of the single chip microcomputer, and the switching is cyclic; when the high level duration is captured as a long time, the circuit enters a shutdown state.
Example (c): setting a short time of 500MS and a long time of 2S in the program; further when the single chip microcomputer detects that the on-time of the key switch is less than 500MS, the single chip microcomputer controls the functional circuit to maintain the current mode; when the single chip microcomputer detects that the on-time of the key switch is between 500MS and 2S, the single chip microcomputer controls the functional circuit to enter a set next mode; and when the single chip microcomputer detects that the on-time of the key switch is more than 2S, the single chip microcomputer controls the second switch circuit to enter a shutdown state.
Thirdly, shutdown process:
as shown in fig. 3, when the duration of the high level captured by the detection pin of the single chip microcomputer is long, the circuit enters a power-off state; at this time, the first output end of the singlechip outputs low level, and a triode Q5 of the second switching circuit is cut off, namely the second switching circuit is turned off; the anode of the battery is disconnected with the resistor R1, the resistor R3, the diode D2, the triode Q3 and the triode Q5, the MOS tube Q2 of the voltage division circuit is further disconnected, the linear voltage stabilizer stops outputting, and the whole machine is shut down.
After the power-off, the circuit has no loop, and the peripheral circuit does not consume the electric energy of the battery except the electric leakage of the battery, so that zero power consumption can be realized. When the electric equipment is started or runs, when the battery power is insufficient, the output voltage of the E pole of the triode Q1 is reduced, so that the voltage division of a rear-end resistor R4 and a resistor R5 is reduced, the triode Q3 is cut off, and the first switching circuit is turned off; the battery anode is disconnected with the resistor R1, the resistor R3, the diode D2, the triode Q3 and the triode Q5 and a ground loop, the MOS tube Q2 of the voltage division circuit is further disconnected, the linear voltage stabilizer stops outputting, and then the linear voltage stabilizer is quickly shut down; the battery can be effectively prevented from being over-discharged, and the service life of the battery is protected.
This embodiment uses a key switch to accomplish the on-off and mode switching function, and when the consumer was in the shutdown state, can break off the connection of consumer and battery effectively to avoid the invalid consumption of battery, further reach shutdown zero-power consumption purpose. The battery pack not only can effectively reduce the manufacturing cost and enable the use of users to be more convenient, but also saves the battery resources and the use cost, protects the service life of the battery and reduces the pollution of waste batteries to the environment.
Examples
The electronic equipment of the embodiment comprises a power supply battery, and further comprises the power supply zero-power control circuit, wherein the power supply zero-power control circuit is connected with the power supply battery.
The embodiment can effectively avoid the invalid power consumption of the battery, save resources and use cost, protect the service life of the battery and reduce the pollution of the waste battery to the environment; meanwhile, the functions of startup and shutdown and mode switching are completed by one key switch, so that the manufacturing cost can be effectively reduced, and the use of a user is more convenient.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.
Claims (10)
1. A power supply zero power consumption control circuit is characterized by comprising a key switch, a processor, a linear voltage stabilizing circuit, a voltage reducing circuit, a voltage dividing circuit, a first switch circuit, a second switch circuit and a third switch circuit;
the input end of the voltage division circuit is connected with the anode of a power supply battery, the first output end of the voltage division circuit is grounded through the key switch, and the first output end of the voltage division circuit is grounded through the first switch circuit and the second switch circuit which are connected in series; the second output end of the voltage division circuit is connected with the first input end of the linear voltage stabilizing circuit, the second input end of the linear voltage stabilizing circuit is connected with the anode of the power supply battery, and the output end of the linear voltage stabilizing circuit is respectively connected with the input end of the first switch circuit and the input end of the voltage reduction circuit;
the output end of the voltage reduction circuit is connected with the power supply end of the processor, and the output end of the voltage reduction circuit is connected with the connection point of the key switch and the first output end of the voltage division circuit through the third switch circuit; the output end of the third switch circuit is connected with the detection pin of the processor, the first output end of the processor is connected with the input end of the second switch circuit, and the second output end of the processor is connected with the load.
2. The power supply zero-power-consumption control circuit as claimed in claim 1, wherein the voltage dividing circuit comprises a voltage dividing resistor R1 and a voltage dividing resistor R3;
the positive pole of power supply battery is connected to divider resistance R1's first end, divider resistance R1's second end is connected divider resistance R3's first end, divider resistance R3's second end is passed through key switch ground connection, resistance R1 with resistance R3's tie point is voltage divider circuit's second output.
3. The power supply zero-power-consumption control circuit of claim 2, wherein the linear voltage regulation circuit comprises a transistor Q1, a MOS transistor Q2, a resistor R2, a capacitor C1, a capacitor C2 and a Zener diode D1;
the collector of the triode Q1 is connected with the anode of the power supply battery; the emitter of the transistor Q1 is respectively connected with the input end of the first switch circuit and the input end of the voltage reduction circuit, and the emitter of the transistor Q1 is grounded through the capacitor C1; the base electrode of the triode Q1 is connected with the negative electrode of the voltage stabilizing diode D1, and the positive electrode of the voltage stabilizing diode D1 is grounded; the base electrode of the triode Q1 is connected with the drain electrode of the MOS tube Q2 through the resistor R2, and the drain electrode of the MOS tube Q2 is grounded through the capacitor C2; the grid electrode of the MOS transistor Q2 is connected with the connection point of the voltage dividing resistor R1 and the voltage dividing resistor R3, and the source electrode of the MOS transistor Q2 is connected with the anode of the power supply battery.
4. The power supply zero power consumption control circuit according to any one of claims 1-3, wherein the first switch circuit comprises a transistor Q3, a voltage dividing resistor R4, a voltage dividing resistor R5;
the collector of the triode Q3 is connected with the first output end of the voltage division circuit, the base of the triode Q3 is connected with the output end of the linear voltage stabilizing circuit through the voltage division resistor R4, and the base of the triode Q3 is grounded through the voltage division resistor R5; and the emitter of the triode Q3 is connected with the second switching circuit.
5. The power supply zero power consumption control circuit of claim 4, further comprising a diode D2 and a diode D3;
the first output end of the voltage division circuit is connected with the anode of the diode D2, and the cathode of the diode D2 is connected with the collector of the triode Q3; the first output end of the voltage division circuit is connected with the anode of the diode D3, and the cathode of the diode D3 is connected with the key switch.
6. The power supply zero-power-consumption control circuit as claimed in claim 4, wherein the second switch circuit comprises a transistor Q5, a voltage-dividing resistor R8, a voltage-dividing resistor R10;
the collector of the triode Q5 is connected with the emitter of the triode Q3, the base of the triode Q5 is grounded through the voltage-dividing resistor R10, and the base of the triode Q5 is connected with the first output end of the processor through the voltage-dividing resistor R8; the emitter of the transistor Q5 is grounded.
7. The power supply zero-power-consumption control circuit as claimed in any one of claims 1-3, wherein the third switch circuit comprises a transistor Q4, a voltage-dividing resistor R6, a voltage-dividing resistor R7;
the emitter of the triode Q4 is connected with the output end of the voltage reduction circuit, the base of the triode Q4 is connected with the output end of the voltage reduction circuit through a voltage division resistor R6, and the base of the triode Q4 is connected with the connection point of the key switch and the first output end of the voltage division circuit through a voltage division resistor R7; the collector of the triode Q4 is connected with the detection pin of the processor.
8. The power supply zero power consumption control circuit of claim 7, further comprising a resistor R9 and a diode D4;
the collector of the triode Q4 is grounded through the resistor R9; the base of the triode Q4 is connected with the anode of the diode D4 through the resistor R7, and the cathode of the diode D4 is connected with the connection point of the key switch and the first output end of the voltage division circuit.
9. The power supply zero-power-consumption control circuit as claimed in claim 1, wherein the processor is an STM32F030 single chip microcomputer.
10. An electronic device comprising a power supply battery, wherein the electronic device further comprises the power supply zero power consumption control circuit according to any one of claims 1-9, and the power supply zero power consumption control circuit is connected with the power supply battery.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922001635.4U CN210776362U (en) | 2019-11-19 | 2019-11-19 | Power supply zero-power-consumption control circuit and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922001635.4U CN210776362U (en) | 2019-11-19 | 2019-11-19 | Power supply zero-power-consumption control circuit and electronic equipment |
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| CN210776362U true CN210776362U (en) | 2020-06-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113282159A (en) * | 2021-07-22 | 2021-08-20 | 深圳市视晶无线技术有限公司 | Switch control system for zero current standby of embedded controller |
| CN115453925A (en) * | 2022-08-01 | 2022-12-09 | 深圳市立创普电源技术有限公司 | A control circuit and electronic device with zero shutdown power consumption |
-
2019
- 2019-11-19 CN CN201922001635.4U patent/CN210776362U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113282159A (en) * | 2021-07-22 | 2021-08-20 | 深圳市视晶无线技术有限公司 | Switch control system for zero current standby of embedded controller |
| CN115453925A (en) * | 2022-08-01 | 2022-12-09 | 深圳市立创普电源技术有限公司 | A control circuit and electronic device with zero shutdown power consumption |
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