CN104639139B - A kind of on-off circuit of zero-power in the standby state - Google Patents
A kind of on-off circuit of zero-power in the standby state Download PDFInfo
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- CN104639139B CN104639139B CN201310563523.2A CN201310563523A CN104639139B CN 104639139 B CN104639139 B CN 104639139B CN 201310563523 A CN201310563523 A CN 201310563523A CN 104639139 B CN104639139 B CN 104639139B
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Abstract
The invention discloses a kind of on-off circuit of zero-power in the standby state, the first triode and the second triode including positive-negative-positive, 3rd triode of NPN type and the 4th triode, the input of main power source is connected with the first transistor emitter, the 4th resistance is connected between main power source input and the first transistor base, first transistor collector connects the second transistor emitter, and the 8th resistance is connected between the colelctor electrode of the first triode and the base stage of the second triode；The colelctor electrode of first triode is also connected with the power input of microcontroller, and the starting switch connection of microcontroller signal input part diode and Switching Power Supply, signal input part is also connected by second resistance with main power source input；Base stage of the signal output part of microcontroller respectively with the 3rd triode and the 4th triode is connected, the colelctor electrode of 3rd triode is connected with the base stage of the first triode, the colelctor electrode connection starting switch of 3rd triode, the colelctor electrode of the 4th triode are connected with the base stage of the second triode.
Description
Technical field
The present invention relates to a kind of on-off circuit, more particularly to a kind of on-off circuit of zero-power in the standby state.
Background technology
In some electric equipments, in order to which operation does not save electric energy in equipment, the main power source to equipment is generally required
Switch is extracted manually, to cause equipment not consume electric energy in the standby state, reduces potential safety hazard, still, once need
When reactivating equipment, also need manually opened or plug main power plugs.Unnecessary trouble is caused, and equipment can be caused
Service life reduce.Therefore, passed through in practical application and carry out the automatic main power source for being turned off and on equipment frequently with on-off circuit, but
Real zero-power is not implemented in existing on-off circuit.
Authorization Notice No. is：CN201918935U utility model patent and the invention of Application No. 201010271222.9
Patent application discloses a kind of standby zero power consumption switch control system, and it has following drawback, is not real zero-power.When
The capacitance size of electric capacity, determine can with system cut-off how long can also normal work, capacitance is bigger can hold time it is more long,
But capacitance is bigger, electric capacity volume itself is bigger, is unfavorable for the use such as device miniaturization and handheld device.Second, the capacitance of electric capacity
Elapse over time, capacitance can decay, and so this circuit time is more long, and functional reliability does not ensure.Third, work relies on
Carry out work in wherein charging capacitor, if first use or for a long time without using electric capacity is unable to work without electricity, circuit
Make, it is necessary to charged using another button for electric capacity, it is cumbersome.
And the application for a patent for invention of Application No. 201110062826.7 discloses a kind of Zero consumption standby circuit, and it is non-real
The zero-power of positive meaning because infrared receiver and decoded portion be need always powered operation in standby mode, infrared receiver and
Decoded portion inherently electrical source consumption source.
The content of the invention
It is an object of the invention to provide a kind of easy to operate, the switch of the real zero-power of electric equipment in the standby state
Circuit.
To realize the purpose, present invention employs following technical scheme：A kind of switch of zero-power in the standby state
Circuit, including the first triode, the second triode, the 3rd triode, the 4th triode, first triode and the two or three pole
To manage as PNP type triode, the 3rd triode and the 4th triode are NPN type triode,
The input of main power source is connected with the emitter stage of the first triode, in main power source input and the base of the first triode
Interpolar has been connected with the 4th resistance of bias, and the colelctor electrode of the first triode connects the emitter stage of the second triode, the
The 8th resistance of bias, the current collection of the second triode have been connected between the base stage of the colelctor electrode of one triode and the second triode
Output end of the pole as on-off circuit；
The colelctor electrode of first triode is also connected with the power input of microcontroller, and the signal input part of microcontroller leads to
The starting switch for crossing the first diode and Switching Power Supply connects, the other end ground connection of starting switch, the signal input of microcontroller
End is also connected by second resistance with main power source input, and the resistance of the second resistance is more than the 4th resistance；
Base stage of the signal output part of microcontroller respectively with the 3rd triode and the 4th triode is connected, the 3rd triode
Colelctor electrode be connected with the base stage of the first triode, the colelctor electrode of the 3rd triode also connects opening for ground connection by the second diode
Dynamic switch, the grounded emitter of the 3rd triode；
The colelctor electrode of 4th triode is connected with the base stage of the second triode, the grounded emitter of the 4th triode.
Preferably, the emitter stage and the colelctor electrode of the 8th resistance and the first triode of second triode disconnect directly
It is connected to the input of main power source.
Further, it is connected with 3rd resistor between the base stage and microcontroller output signal of the 3rd triode, the one or three
The 6th small electricity of one to the four resistance is connected between the colelctor electrode and the second diode of the base stage of pole pipe and the 3rd triode
Resistance, connection fiveth resistance bigger than 3rd resistor resistance between the base stage and ground of the 3rd triode, the base stage of the 4th triode and
Be connected with the 7th resistance between microcontroller output signal, the base stage of the 4th triode be directly connected to it is bigger than the 7th resistance
The 9th resistance, smaller than the 8th resistance the tenth electricity is connected between the colelctor electrode of the 4th triode and the base stage of the second triode
Resistance.
Preferably, second triode is replaced with into relay, the control coil of the relay is connected to first
Between the colelctor electrode of the colelctor electrode of triode and the 4th triode, the switch of relay control coil control is connected to main power source
Between input and the output end of on-off circuit, further, between the base stage and microcontroller output signal of the 3rd triode
It is connected with 3rd resistor, one to the is connected between the colelctor electrode and the second diode of the base stage of the first triode and the 3rd triode
The 6th small resistance of four resistances, connection fiveth electricity bigger than 3rd resistor resistance between the base stage and ground of the 3rd triode
Resistance, is connected with the 7th resistance between the base stage and microcontroller output signal of the 4th triode, the base stage and ground of the 4th triode are straight
Nineth resistance bigger than the 7th resistance is connect in succession.
Preferably, the starting switch is touch-switch, metal dome switch, thin film switch, water-proof type thin film switch.
Further, second triode can be replaced FET or photoelectrical coupler.
Present invention contrast prior art has the following advantages:1. need not be long-term use of reliable and stable by electric capacity charging work.
It 2. a whole set of circuit selection volume is very small, can be miniaturized, be advantageous to the fixing fabric structure of equipment.3. use first without filling
Electricity, it is simple to operate without multiple buttons, individual palpation key operation.4. a whole set of circuit includes control circuit, in off position when,
Do not power, do not work, real zero-power, meet energy-conserving and environment-protective spirit.5. the shift knob operating current pole of a set on-off circuit
It is small, the various switching devices such as touch-switch, metal dome switch, thin film switch can be used, the volume and outward appearance for facilitating product need
Ask, can more make water-proof type thin film switch etc. and apply in special dimension.6. applying in the handheld device using battery, contract significantly
Small size and extension battery.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one；
Fig. 2 is the structural representation of the embodiment of the present invention two；
Fig. 3 is the structural representation of the embodiment of the present invention three；
Fig. 4 is the attachment structure schematic diagram of microcontroller in the embodiment of the present invention.
Embodiment
Referring now to accompanying drawing, the present invention is further described.
Embodiment one：
As Figure 1 and Figure 4, a kind of on-off circuit of zero-power in the standby state, including the first triode Q1, second
Triode Q2, the 3rd triode Q3, the 4th triode Q4, the first triode Q1 and the second triode Q2 are the pole of positive-negative-positive three
Pipe, the 3rd triode Q3 and the 4th triode Q4 are NPN type triode,
The input VCC IN of main power source are connected with the first triode Q1 emitter stage, in main power source input and the one or three
The 4th resistance R4 of bias is connected between pole pipe Q1 base stage, the first triode Q1 colelctor electrode connects the second triode
Q2 emitter stage, the 8th electricity of bias is connected between the first triode Q1 colelctor electrode and the second triode Q2 base stage
Output end of resistance R8, the second triode Q2 colelctor electrode as on-off circuit；
First triode Q1 colelctor electrode is connected with microcontroller U1 power input U1VCC, microcontroller U1 letter
Number input KEY IN pass through the touch-switch S1 connections of the first diode D24 and on-off circuit, the touch-switch S1 other end
Ground connection, microcontroller U1 signal input part KEY IN are also connected by second resistance R2 with main power source input VCC IN, institute
The resistance for stating second resistance R2 is more than the 4th resistance R4；
Microcontroller U1 signal output part KEY OUT base stage phases with the 3rd triode Q3 and the 4th triode Q4 respectively
Even, the 3rd triode Q3 colelctor electrode is connected with the first triode Q1 base stage, and the 3rd triode Q3 colelctor electrode is also by the
The touch-switch S1 of two diode D25 connections ground connection, the 3rd triode Q3 grounded emitter；
4th triode Q4 colelctor electrode is connected with the second triode Q2 base stage, and the 4th triode Q4 emitter stage connects
Ground.
3rd resistor R3 is connected between the 3rd triode Q3 base stage and microcontroller U1 output signal KEY OUT, the
One to the four resistance R4 resistances are connected between one triode Q1 base stage and the 3rd triode Q3 colelctor electrode and the second diode
The connection fiveth resistance R5 bigger than 3rd resistor R3 resistances between the 6th small resistance R6, the 3rd triode Q3 base stage and ground,
The 7th resistance R7, the 4th triode Q4 are connected between 4th triode Q4 base stage and microcontroller U1 output signal KEY OUT
Base stage with ground be directly connected to than the 7th resistance R7 resistances greatly the 9th resistance R9, the 4th triode Q4 colelctor electrode and the two or three
The tenth resistance R10 smaller than the 8th resistance R8 resistances is connected between pole pipe Q2 base stage.
Microcontroller U1 power input U1VCC is held by first resistor R1 and microcontroller U1 reset (Reset)
Mouth link, first resistor R1 also pass through the first electric capacity C1 and are grounded；Power input U1VCC is also grounded by the 3rd electric capacity C3, gently
Touch switch S1 and the first diode D24 and the second diode D25 connection end are grounded by the second electric capacity C2, on-off circuit output
End VCC OUT are grounded by the 4th electric capacity C4.
Metal dome switch, thin film switch, water-proof type thin film switch are may be replaced by as the preferred touch-switch S1
Deng switch.
Preferably, the first triode Q1 and the second triode Q2 models S8550, the 3rd triode Q3 and the four or three pole
Pipe Q4 models MMBT9103, the first diode D24 and the second diode D25 model IN4148；First resistor R1 resistance
It is worth for 15K, second resistance R2 resistance is 330K, and 3rd resistor R3 resistance is 1K, and the 4th resistance R4 resistance is 62K,
Five resistance R5 resistance is 330K, and the 6th resistance R6 resistance is 1K, and the 7th resistance R7 resistance is 1K, the 8th resistance R8 resistance
It is worth for 62K, the 9th resistance R9 resistance is 330K, and the tenth resistance R10 resistance is 1K；First electric capacity C1, the second electric capacity C2,
Three electric capacity C3, the 4th electric capacity C4 capacitance are 0.01 μ F, microcontroller U1 model 69P21 single-chip microcomputer.
The operation principle flow of the present embodiment is as follows：
1. working as main power source input VCC IN input powers, at this moment the first triode Q1 base stage is drawn by the 4th resistance R4
A height of high level, the first triode Q1 are cut-off state, and microcontroller U1 power input U1VCC does not have voltage, microcontroller
Device U1 does not work, and microcontroller U1 signal input part KEY IN and model output end KEY OUT is low level, the two or three pole
Pipe Q2, the 3rd triode Q3, the 4th triode Q4 is cut-off state, and now switching circuitry output VCC OUT do not have voltage,
Off state is presented in a whole set of circuit.
2. during touch-switch S1 down states, the first triode Q1 base stage passes through the 6th resistance R6, the second diode
D25, touch-switch S1 are connected to ground, and the first triode Q1 base stages are low level, and the first triode Q1, which becomes, turns to conducting state, micro-control
Device U1 processed power input U1VCC and input voltage, microcontroller U1 start normally to start work, start the time in millisecond
Level, after microcontroller U1 normally starts, high level state is persistently exported in signal output part KEY OUT terminal mouths, now the 3rd 3
Pole pipe Q3, the 4th triode Q4 base stage are high level, and the 3rd triode Q3, the 4th triode Q4 are turned on, the 3rd triode Q3
It is low level that conducting can be drawn to the first triode Q1 base stages, and the 4th triode Q4 conductings can be drawn to be low to the second triode Q2 base stages
Level, microcontroller U1 power input U1VCC and the output end VCC OUT terminals of on-off circuit all with main power source input
VCC IN are turned on, and a whole set of circuit turn-on enters normal operating conditions.
3. when touch-switch S1 releasing orientations, microcontroller U1 is in normal operating conditions, so its signal output part KEY
High level is persistently presented in OUT terminal, continues to the first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th triode
Q4 conducting state, after touch-switch S1 unclamps, conducting state, microcontroller U1 power input is presented in a whole set of circuit
The output end VCC OUT terminals of U1VCC and on-off circuit have normal working voltage
4. under normally state, when pressing touch-switch S1, first normal operating conditions again, microcontroller U1 meetings one
Its signal input part KEY IN port levels, normally working condition are directly scanned, because second resistance R2 is pulled up, signal input
High level state is persistently presented in end KEY IN, and now microcontroller U1 does not do any action, continues to its signal output part KEY
The high level output of OUT terminal mouth, a whole set of circuit turn-on, normal work.When touch-switch S1 is pressed, pass through the first diode
D24, signal input part KEY IN port levels become low level state, and after single-chip microcomputer detects this change, it is defeated to change signal
It is low level to go out to hold KEY OUT terminal mouths state, and now the second triode Q2, the 3rd triode Q3, the 4th triode Q4, which are presented, cuts
Only state, power-off at switching circuitry output VCC OUT, the first triode Q1 is because switch is to press conducting state, base
Extremely low level, the first triode Q1 are still turned on, and continue as microcontroller U1 power supplies, and single-chip microcomputer is still working on.Pine
After opening touch-switch S1, it is high level that the first triode Q1 base stages are drawn by the 4th resistance R4, and the first triode Q1, which is converted to, to be cut
Only state, power supply are thoroughly closed.
In the 4th step, when it is down state that microcontroller U1, which detects touch-switch S1, detection time can be adjusted,
Such as：Switch can be set to press to shut down immediately, can also set and detect that switch continues to shut down according to 4 seconds, the unused time can
Arbitrarily to set, can effectively prevent switch by by mistake by probability.
Embodiment two：
The difference of the present embodiment and embodiment one is mainly by the emitter stage and the 8th resistance R8 of the second triode Q2
Disconnect and be connected directly between on the input VCC IN of main power source with the first triode Q1 colelctor electrode, other with embodiment one by one
Cause, the present embodiment by the output end VCC OUT positions to take power of on-off circuit by skipping the first triode Q1, directly from main power source
Input VCC IN at power taking, if high current operating circuit can use this circuit, it can reduce circuit as far as possible
On current loss.
Embodiment three：
The present embodiment and the difference of above-mentioned two embodiment are mainly that the second triode Q2 is replaced with into relay,
The control coil of the relay is connected between the first triode Q1 colelctor electrode and the 4th triode Q4 colelctor electrode, relay
Device control coil control switch K1 be connected to main power source input VCC IN and on-off circuit output end VCC OUT it
Between, other are consistent with above-described embodiment.The present embodiment uses a kind of circuit of the relay as system power taking, can extend use
In the field such as industrial high current or high voltage.
Preferably, second triode may be replaced by other controlled electrons such as FET or photoelectrical coupler
Element, it is all well known to the skilled artisan in the art that it, which controls connected mode,.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (8)
- A kind of 1. on-off circuit of zero-power in the standby state, it is characterised in that：Including the first triode, the second triode, 3rd triode, the 4th triode, first triode and the second triode are PNP type triode, the 3rd triode and Four triodes are NPN type triode,The input of main power source is connected with the emitter stage of the first triode, between the base stage of main power source input and the first triode The 4th resistance of bias is connected with, the colelctor electrode of the first triode connects the emitter stage of the second triode, the one or three The 8th resistance of bias is connected between the base stage of the colelctor electrode of pole pipe and the second triode, the colelctor electrode of the second triode is made For the output end of on-off circuit；The colelctor electrode of first triode is also connected with the power input of microcontroller, and the signal input part of microcontroller passes through The starting switch of one diode and on-off circuit connects, and the other end ground connection of starting switch, the signal input part of microcontroller is also It is connected by second resistance with main power source input, the resistance of the second resistance is more than the 4th resistance；Base stage of the signal output part of microcontroller respectively with the 3rd triode and the 4th triode is connected, the collection of the 3rd triode Electrode is connected with the base stage of the first triode, and the colelctor electrode of the 3rd triode also connects the startup being grounded by the second diode and opened Close, the grounded emitter of the 3rd triode；The colelctor electrode of 4th triode is connected with the base stage of the second triode, the grounded emitter of the 4th triode.
- 2. the on-off circuit of zero-power in the standby state according to claim 1, it is characterised in that：Two or three pole The emitter stage of pipe and the colelctor electrode of the 8th resistance and the first triode disconnect the input for being connected directly between main power source.
- 3. the on-off circuit of zero-power in the standby state according to claim 2, it is characterised in that：By the described 2nd 3 Pole pipe replaces with relay, and the control coil of the relay is connected to the colelctor electrode of the first triode and the collection of the 4th triode Between electrode, the switch of relay control coil control is connected between the input of main power source and the output end of on-off circuit.
- 4. the on-off circuit of zero-power in the standby state according to claim 1 or 2, it is characterised in that：Described second Triode can be replaced FET or photoelectrical coupler.
- 5. the on-off circuit of zero-power in the standby state according to claim 1 or 2, it is characterised in that：The startup Switch as touch-switch, metal dome switch, thin film switch, water-proof type thin film switch.
- 6. the on-off circuit of zero-power in the standby state according to claim 3, it is characterised in that：The starting switch For touch-switch, metal dome switch, thin film switch, water-proof type thin film switch.
- 7. the on-off circuit of zero-power in the standby state according to claim 5, it is characterised in that：In the 3rd triode Base stage and microcontroller output signal between be connected with 3rd resistor, the base stage of the first triode and the colelctor electrode of the 3rd triode And second be connected with the 6th small resistance of one to the four resistance between diode, connected between the base stage and ground of the 3rd triode The 5th big resistance than 3rd resistor resistance, the 7th electricity is connected between the base stage and microcontroller output signal of the 4th triode Resistance, the base stage of the 4th triode with ground be directly connected to than the 7th resistance greatly the 9th resistance, the colelctor electrode of the 4th triode Tenth resistance smaller than the 8th resistance is connected between the base stage of the second triode.
- 8. the on-off circuit of zero-power in the standby state according to claim 6, it is characterised in that：In the 3rd triode Base stage and microcontroller output signal between be connected with 3rd resistor, the base stage of the first triode and the colelctor electrode of the 3rd triode And second be connected with the 6th small resistance of one to the four resistance between diode, connected between the base stage and ground of the 3rd triode The 5th big resistance than 3rd resistor resistance, the 7th electricity is connected between the base stage and microcontroller output signal of the 4th triode Resistance, the base stage of the 4th triode with ground be directly connected to than the 7th resistance greatly the 9th resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563523.2A CN104639139B (en) | 2013-11-14 | A kind of on-off circuit of zero-power in the standby state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563523.2A CN104639139B (en) | 2013-11-14 | A kind of on-off circuit of zero-power in the standby state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104639139A CN104639139A (en) | 2015-05-20 |
| CN104639139B true CN104639139B (en) | 2018-02-09 |
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| CN101426114A (en) * | 2008-12-05 | 2009-05-06 | 深圳创维－Rgb电子有限公司 | Zero power consumption standby television set and implementing method thereof |
| CN201918935U (en) * | 2010-09-02 | 2011-08-03 | 常州市凯迪电器有限公司 | Zero power consumption standby switch control device |
| CN102183899A (en) * | 2011-03-16 | 2011-09-14 | 深圳雅图数字视频技术有限公司 | Zero power consumption standby circuit |
| WO2012028016A1 (en) * | 2010-09-02 | 2012-03-08 | 常州市凯迪电器有限公司 | Switch control system with zero power consumption in standby state |
| CN102890855A (en) * | 2011-11-29 | 2013-01-23 | 刘硕 | Remote control receiving control method without alternating-current standby power consumption and remote control receiving circuit without alternating-current standby power consumption |
| CN102998987A (en) * | 2012-08-20 | 2013-03-27 | 昆山万维通建筑系统科技有限公司 | Switching circuit free of standby power consumption |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101426114A (en) * | 2008-12-05 | 2009-05-06 | 深圳创维－Rgb电子有限公司 | Zero power consumption standby television set and implementing method thereof |
| CN201918935U (en) * | 2010-09-02 | 2011-08-03 | 常州市凯迪电器有限公司 | Zero power consumption standby switch control device |
| WO2012028016A1 (en) * | 2010-09-02 | 2012-03-08 | 常州市凯迪电器有限公司 | Switch control system with zero power consumption in standby state |
| CN102183899A (en) * | 2011-03-16 | 2011-09-14 | 深圳雅图数字视频技术有限公司 | Zero power consumption standby circuit |
| CN102890855A (en) * | 2011-11-29 | 2013-01-23 | 刘硕 | Remote control receiving control method without alternating-current standby power consumption and remote control receiving circuit without alternating-current standby power consumption |
| CN102998987A (en) * | 2012-08-20 | 2013-03-27 | 昆山万维通建筑系统科技有限公司 | Switching circuit free of standby power consumption |
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