CN209419590U - A kind of super low-power consumption on/off circuit - Google Patents
A kind of super low-power consumption on/off circuit Download PDFInfo
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- CN209419590U CN209419590U CN201822129467.2U CN201822129467U CN209419590U CN 209419590 U CN209419590 U CN 209419590U CN 201822129467 U CN201822129467 U CN 201822129467U CN 209419590 U CN209419590 U CN 209419590U
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Abstract
The utility model relates to a kind of super low-power consumption on/off circuits, it includes single-chip microcontroller, battery is connected on the single-chip microcontroller, it is provided with control battery on the battery and single-chip microcontroller is powered and forms the key circuit of push button signalling, the key circuit is coupled with to receive push button signalling and export the first control circuit of first control signal, the first control circuit is coupled with to receive first control signal and export the second control circuit of second control signal, the second control circuit is coupled with to receive the outer ring circuit of second control signal, the key circuit is coupled with to detect whether push button signalling is the detection circuit for being effectively switched on and being formed and detect signal, the detection circuit is coupled to first control circuit to control first control circuit opening and closing.The utility model, which has, to be detected whether as accurate switching on and shutting down with the accurate power on/off of control circuit, to save the effect of electricity waste.
Description
Technical field
The utility model relates to the technical fields of switching circuit, more particularly, to a kind of super low-power consumption on/off circuit.
Background technique
With the development of science and technology, more and more household electrical appliances are using intelligent, so power consumption in electronic product at having to
The problem considered, power problems are especially prominent especially in the product being battery powered.Using touch-switch as pass
In the product of machine key, conventional way is under shutdown mode, and MCU closes all peripheral hardwares, and enters low-power consumption mode, with this
One " vacation shutdown " is done to reduce power consumption.And actually chip itself, the electronic component including other peripheries all can also produce
Raw certain power consumption.So for battery powered product, although shutdown, the electricity of battery is still for a long time
It can be allowed to dry.
Utility model content
The purpose of the utility model is to provide a kind of super low-power consumption on/off circuit, has and save circuit power consumption, reduce electricity
Measure the effect of waste.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of super low-power consumption on/off circuit, including single-chip microcontroller are connected with battery on the single-chip microcontroller, set on the battery
It is equipped with control battery and single-chip microcontroller is powered and forms the key circuit of push button signalling, the key circuit is coupled with to receive key
Signal and the first control circuit for exporting first control signal, the first control circuit are coupled with to receive first control signal
And the second control circuit of second control signal is exported, the second control circuit is coupled with to receive the outer of second control signal
Circuit is enclosed, the key circuit is coupled with to detect whether push button signalling is the detection electricity for being effectively switched on and being formed and detect signal
Road, the detection circuit are coupled to first control circuit to control first control circuit opening and closing.
By using above-mentioned technical proposal, when detection circuit detection key circuit is invalid booting, then detection circuit control
First control circuit processed is closed, so that second control circuit Control peripheral circuit powers off, if detection circuit is detected as effectively being switched on
When, detection circuit controls first control circuit starting, to make second control circuit Control peripheral circuit remain powered on, with accurate
Whether decision circuitry is with Control peripheral circuit on-off after being accurately switched on, to reduce the waste of peripheral circuit electricity.
The utility model is further arranged to: the key circuit includes: key switch, first diode and the 4th electricity
Resistance；Described key switch one end connection battery other end connects first diode, and the first diode other end is coupled to the
First control circuit is connected after four resistance.
By using above-mentioned technical proposal, after key switch closure, the electric current of battery output by the 4th resistance with current limliting,
Prevent electric current is excessively high from having damaged first control circuit, the setting of first diode prevents anti-phase to be connected, to keep battery electric
Stream is accurately opened and closed by key switch.
The utility model is further arranged to: the first control circuit includes: the first triode and the 6th resistance；Institute
The base stage for stating the first triode is coupled to the 4th resistance and is coupled to detection circuit；The collector of first triode is coupled to
The second control circuit；The emitter of first triode is grounded；Described 6th resistance one end is coupled to the first triode
The base stage other end be coupled to the emitter of the first triode.
By using above-mentioned technical proposal, is connected after the first triode accesses high level, then connects second control circuit
Enter high level, so that second control circuit opening and closing is controlled, so that control second control circuit opening and closing is simple.
The utility model is further arranged to: the second control circuit includes: the first metal-oxide-semiconductor and first resistor；Institute
The grid for stating the first metal-oxide-semiconductor is coupled to the collector of the first triode；The drain electrode of first metal-oxide-semiconductor is coupled to battery；It is described
The source electrode of first metal-oxide-semiconductor is coupled to peripheral circuit；Described first resistor one end is coupled to the drain electrode other end coupling of the first metal-oxide-semiconductor
In the grid of the first metal-oxide-semiconductor.
By using above-mentioned technical proposal, when the voltage between the gate-to-source of the first metal-oxide-semiconductor is zero, then the first metal-oxide-semiconductor is cut
Only, it so that peripheral circuit be made to disconnect, is opened after the grid of the first metal-oxide-semiconductor accesses high level, then controls battery to peripheral circuit
Power supply, to keep peripheral circuit power on/off accurate, simple.
The utility model is further arranged to: the detection circuit includes: detector, is coupled to the key circuit to examine
Survey whether key switch is closed and forms detection signal；Delay unit presets delay time and is coupled to the detector to connect
Receive detection signal and defeated time delayed signal；Third control unit is coupled to the third control unit to receive third control signal
And export third control signal.
By using above-mentioned technical proposal, detector is set and detects whether key switch is effectively to be switched on, when passing through delay
Between examine if effective booting then third control unit control first control circuit opening and closing, to make the opening and closing of first control circuit
Control is simple.
The utility model is further arranged to: the delay unit is 555 delay circuits.
By using above-mentioned technical proposal, delay unit is 555 delay circuits, on the one hand the 555 of 555 delay circuits use
Chip cost is low to be conducive to lower entire circuit production cost, and on the other hand 555 delay circuits are realized simple with operation.
The utility model is further arranged to: the third control unit includes: the second triode and the first relay；
The base stage of second triode is coupled to delay unit；The collector of second triode is coupled to the line of the first relay
Power supply is connected after circle；The normally opened contact of first relay is coupled to the current supply circuit of first control circuit；Described 2nd 3
The emitter of pole pipe is grounded.
By using above-mentioned technical proposal, be connected after the second triode access high level, then the coil of the first relay is logical
The normally opened contact closure of first relay after electricity, then first control circuit is passed through always high level, to make first control circuit
It is held on.
The utility model is further arranged to: the detector is microswitch, the microswitch be set to it is described by
At key switch.
By using above-mentioned technical proposal, detector be microswitch to detect whether key switch is closed, be conducive to by
Key switch detection is accurate.
In conclusion the advantageous effects of the utility model are as follows:
1. when detection circuit detection key circuit is invalid booting, then detection circuit control first control circuit is closed,
To which second control circuit Control peripheral circuit powers off, if detection circuit is detected as effectively being switched on, detection circuit control first
Whether control circuit starting, be accurate with accurate judgement circuit so that second control circuit Control peripheral circuit be made to remain powered on
With Control peripheral circuit on-off after booting, to reduce the waste of peripheral circuit electricity；
2. detector, which is arranged, detects whether key switch is effectively to be switched on, examined if effective booting then by delay time
Third control unit controls first control circuit opening and closing, so that it is simple to control the opening and closing of first control circuit.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model；
Fig. 2 is the circuit diagram of the utility model.
Appended drawing reference: 1, single-chip microcontroller；2, battery；3, key circuit；4, first control circuit；5, second control circuit；6,
Outer ring circuit；7, detection circuit；71, detector；72, delay unit；73, third control unit.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Figures 1 and 2, is a kind of super low-power consumption on/off circuit disclosed by the utility model, including single-chip microcontroller 1, list
It is coupled with battery 2 on piece machine 1, is powered by battery 2 to single-chip microcontroller 1, and be provided with control monolithic between single-chip microcontroller 1 and battery 2
Machine 1 and battery 2 are powered and form the key circuit 3 of push button signalling, and key circuit 3 is coupled with to receive push button signalling and export the
The first control circuit 4 of one control signal, first control circuit 4 are coupled with to receive first control signal and export the second control
The second control circuit 5 of signal is coupled with to receive the peripheral circuit of second control circuit 5, by pressing on second control circuit 5
To control the starting of first control circuit 4, first control circuit 4 is opened 3 output key signal of key circuit with controlling second control circuit 5
It is dynamic, so that 5 Control peripheral circuit of second control circuit is powered.Key circuit 3 is coupled with to detect whether push button signalling is effective
Booting and form the detection circuit 7 of detection signal, detection circuit 7 connect with first control circuit 4 and control first control it is electric
Road 4 opens and closes, and whether detect battery 2 to peripheral circuit by detection circuit 7 is effective starting-up signal, then if effective booting
It controls first control circuit 4 to start, so that first control circuit 4 causes no longer by the control of key circuit 3 to prevent vacation to be switched on
The electricity waste of battery 2.Detection circuit 7 includes: detector 71, delay unit 72 and third control unit 73,71 coupling of detector
It is connected to key circuit 3 and detect with the push button signalling for exporting key circuit 3 and judge whether it is effective starting-up signal and shape
At detection signal, detector 71 is microswitch in the present embodiment, and microswitch is set in key circuit 3, delay unit 72
It presets delay time and is coupled to detector 71 to receive detection signal and export time delayed signal, third control unit 73 is coupled to
Delay unit 72 is with reception delay signal and exports third control signal.What whether the detection key circuit 3 of detector 71 exported presses
Whether key signals are effective starting-up signal, to examine key circuit 3 are effective by the preset delay time of delay unit 72
When circuit, then third control unit 73 controls first control circuit 4 and keeps starting.
Key circuit 3 includes: key switch, first diode D1 and the 4th resistance R4, key switch one end connection electricity
2 other end of pond is connected with first diode D1, and the other end of first diode D1 is connect with the 4th resistance R4, and the 4th resistance R4 is another
One end connects first control circuit 4.First control circuit 4 includes: NPN the first triode Q1 and the 5th resistance R5, NPN first
The base stage of triode Q1 is coupled to the other end of the 4th resistance R4, and the collector of the first triode of NPN Q1 is coupled to the second control
Circuit 5, the transmitting ground connection of the first triode of NPN Q1, the base stage that the 5th one end resistance R5 connects the first triode of NPN Q1 are another
The emitter of end connection the first triode of NPN Q1.Second control circuit 5 includes the first metal-oxide-semiconductor and first resistor R1, and first
Metal-oxide-semiconductor is P-channel metal-oxide-semiconductor, and the grid of the first metal-oxide-semiconductor is coupled to the collector of the first triode of NPN Q1, the leakage of the first metal-oxide-semiconductor
Pole is coupled to battery 2, and the source electrode of the first metal-oxide-semiconductor is coupled to peripheral circuit, and detector 71 is that microswitch is set to key switch
On to detect whether key switch is closed, delay unit 72 be 555 delay circuits, and the connection relationship of 555 delay circuits as scheme
Shown in 2, when microswitch is pressed, then it represents that key switch closure, so being effective open state, at this time microswitch
The detection signal for high level is issued, so that 555 chips are powered, 555 delay circuits are started to work, if in set delay
Interior microswitch is not pressed always, then the output of 555 delay circuits is the time delayed signal of high level, if in set delay
Microswitch disconnects between in time, then it represents that invalid open state, when microswitch is pressed, microswitch sending at this time is
Low level detection signal, so that 555 chips stop working.Third control unit 73 includes NPN third transistor Q3 and the
The base stage of one relay KM1, NPN third transistor Q3 is coupled to the output end of 555 delay circuits, NPN third transistor Q3's
Collector connects power supply after being coupled to the coil of the first relay KM1, and the normally opened contact of the first relay KM1 is coupled to NPN
The base stage current supply circuit of one triode Q1, the emitter ground connection of NPN third transistor Q3, when 555 delay circuits export high level
Afterwards, it is connected after the base stage access high level of NPN third transistor Q3, then the normally opened contact closure of the first relay KM1 is with by NPN
First triode Q1 accesses high level conducting, then the first triode of NPN Q1 is not controlled by case switch, then the first metal-oxide-semiconductor
Grid voltage drags down, and the first metal-oxide-semiconductor is opened, so that battery 2 is powered to peripheral circuit, to reduce the wave of electricity caused by dummy switch
Take.
The implementation principle of the present embodiment are as follows: when the access single-chip microcontroller 1 for the first time of battery 2, due to the first triode of NPN Q1's
Base voltage input is zero to cut-off, while the grid-source voltage of the first metal-oxide-semiconductor is also 0, then the first metal-oxide-semiconductor disconnects, to make
Battery 2 and peripheral circuit are all the states disconnected, then are off-mode.Key switch is closed after pressing the button switch, simultaneously
Microswitch starts 555 delay circuits, is connected after the base stage access high level of the first triode of NPN Q1 at this time, the first metal-oxide-semiconductor
Grid drag down after the first metal-oxide-semiconductor open, then battery 2 give peripheral circuit power supply.In the preset delay time of 555 delay circuits
Interior, if jogging switches measurement is invalid starting-up signal, 555 delay circuits stop working while peripheral circuit is restored to initially
State, if jogging switches measurement is to be effectively switched on, then 555 delay circuits export high level by after delay time.Then NPN
It is connected after third transistor Q3 access high level, the normally opened contact of the first relay KM1 closure, then the first triode of NPN Q1
Base stage accesses always high level conducting, then the first metal-oxide-semiconductor also maintains on state, even if after key switch disconnects, peripheral circuit
Also it keeps working normally, so that whether accurate judgement is accurate open state to reduce the waste of electricity.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of super low-power consumption on/off circuit, including single-chip microcontroller (1), it is connected with battery (2) on the single-chip microcontroller (1), it is special
Sign is, control battery (2) is provided on the battery (2) and single-chip microcontroller (1) is powered and forms the key circuit of push button signalling
(3), the key circuit (3) is coupled with to receive push button signalling and export the first control circuit (4) of first control signal, institute
First control circuit (4) is stated to be coupled with to receive first control signal and export the second control circuit (5) of second control signal,
The second control circuit (5) is coupled with to receive the outer ring circuit (6) of second control signal, key circuit (3) coupling
There is detection circuit (7) coupling to detect whether push button signalling is the detection circuit (7) for being effectively switched on and being formed and detect signal
In first control circuit (4) to control first control circuit (4) opening and closing.
2. a kind of super low-power consumption on/off circuit according to claim 1, which is characterized in that key circuit (3) packet
It includes: key switch, first diode and the 4th resistance；
Key switch one end connection battery (2) other end connects first diode, the first diode other end coupling
First control circuit (4) are connected after the 4th resistance.
3. a kind of super low-power consumption on/off circuit according to claim 2, which is characterized in that the first control circuit
It (4) include: the first triode and the 6th resistance；
The base stage of first triode is coupled to the 4th resistance and is coupled to detection circuit (7)；
The collector of first triode is coupled to the second control circuit (5)；
The emitter of first triode is grounded；
The base stage other end that described 6th resistance one end is coupled to the first triode is coupled to the emitter of the first triode.
4. a kind of super low-power consumption on/off circuit according to claim 1, which is characterized in that the second control circuit
It (5) include: the first metal-oxide-semiconductor and first resistor；
The grid of first metal-oxide-semiconductor is coupled to the collector of the first triode；
The drain electrode of first metal-oxide-semiconductor is coupled to battery (2)；
The source electrode of first metal-oxide-semiconductor is coupled to peripheral circuit；
The drain electrode other end that described first resistor one end is coupled to the first metal-oxide-semiconductor is coupled to the grid of the first metal-oxide-semiconductor.
5. a kind of super low-power consumption on/off circuit according to claim 1, which is characterized in that detection circuit (7) packet
Include: whether detector (71) is coupled to the key circuit (3) and is closed with to detect key switch and forms detection signal；
Delay unit (72) presets delay time and is coupled to the detector (71) to receive detection signal and defeated time delayed signal
Third control unit (73) is coupled to the third control unit (73) to receive third control signal and export third control
Signal processed.
6. a kind of super low-power consumption on/off circuit according to claim 5, which is characterized in that the delay unit (72) is
555 delay circuits.
7. a kind of super low-power consumption on/off circuit according to claim 6, which is characterized in that the third control unit
It (73) include: the second triode and the first relay；
The base stage of second triode is coupled to delay unit (72)；
The collector of second triode connects power supply after being coupled to the coil of the first relay；
The normally opened contact of first relay is coupled to the current supply circuit of first control circuit (4)；
The emitter of second triode is grounded.
8. a kind of super low-power consumption on/off circuit according to claim 7, which is characterized in that the detector (71) is micro-
Dynamic switch, the microswitch are set at the key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822129467.2U CN209419590U (en) | 2018-12-18 | 2018-12-18 | A kind of super low-power consumption on/off circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822129467.2U CN209419590U (en) | 2018-12-18 | 2018-12-18 | A kind of super low-power consumption on/off circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209419590U true CN209419590U (en) | 2019-09-20 |
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ID=67938695
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822129467.2U Active CN209419590U (en) | 2018-12-18 | 2018-12-18 | A kind of super low-power consumption on/off circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645601A (en) * | 2019-10-28 | 2020-01-03 | 珠海格力电器股份有限公司 | Key detection device of gas stove and gas stove |
| CN112486072A (en) * | 2020-12-02 | 2021-03-12 | 郑州嘉晨电器有限公司 | Low-power-consumption starting circuit |
| CN113225062A (en) * | 2021-04-30 | 2021-08-06 | 上海磐启微电子有限公司 | Low-cost single key switching on and switching off circuit |
-
2018
- 2018-12-18 CN CN201822129467.2U patent/CN209419590U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645601A (en) * | 2019-10-28 | 2020-01-03 | 珠海格力电器股份有限公司 | Key detection device of gas stove and gas stove |
| CN112486072A (en) * | 2020-12-02 | 2021-03-12 | 郑州嘉晨电器有限公司 | Low-power-consumption starting circuit |
| CN112486072B (en) * | 2020-12-02 | 2022-02-25 | 河南嘉晨智能控制股份有限公司 | Low-power-consumption starting circuit |
| CN113225062A (en) * | 2021-04-30 | 2021-08-06 | 上海磐启微电子有限公司 | Low-cost single key switching on and switching off circuit |
| CN113225062B (en) * | 2021-04-30 | 2023-07-11 | 上海磐启微电子有限公司 | Low-cost single-button switch circuit |
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