CN104639139A - Zero-power-consumption switching circuit - Google Patents
Zero-power-consumption switching circuit Download PDFInfo
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- CN104639139A CN104639139A CN201310563523.2A CN201310563523A CN104639139A CN 104639139 A CN104639139 A CN 104639139A CN 201310563523 A CN201310563523 A CN 201310563523A CN 104639139 A CN104639139 A CN 104639139A
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Abstract
The invention discloses a zero-power-consumption switching circuit comprising a PNP type first triode, a PNP type second triode, an NPN type third triode and an NPN type fourth triode. The input end of a main power supply is connected with the emitter of the first triode, a fourth resistor is connected between the input end of the main power supply and the base of the first triode, the collector of the first triode is connected with the emitter of the second triode, and an eighth resistor is connected between the collector of the first triode and the base of the second triode; the collector of the first triode is connected with the power input end of a microcontroller, a diode of the signal input end of the microcontroller is connected with a starting switch of a switching power supply, and the signal input end is further connected with the input end of the main power supply through a second resistor; the signal output end of the microcontroller is respectively connected with the bases of the third triode and the fourth triode, the collector of the third triode is connected with the base of the first triode, the collector of the third triode is connected with the starting switch, and the collector of the fourth triode is connected with the base of the second triode.
Description
Technical field
The present invention relates to a kind of switching circuit, particularly relate to a kind of zero-power switching circuit.
Background technology
In some electric equipments, in order to equipment not operation save electric energy, often need manually to extract the main power switch of equipment, electric energy is not consumed in the standby state to make equipment, reduce potential safety hazard, but, once when needing to reactivate equipment, also need manually opened or plug main power plugs.Cause unnecessary trouble, and can make reduce the useful life of equipment.Therefore, often adopt switching circuit automatically to close the main power source with starting device in practical application, but the unrealized real zero-power of existing switching circuit.
Authorization Notice No. is: the utility model patent of CN201918935U and application number be 201010271222.9 application for a patent for invention disclose a kind of standby zero power consumption switch control system, there is following drawback in it, is not real zero-power.One is the capacitance size of electric capacity, determines and can how long can also normally work by system cut-off, capacitance is larger can hold time more of a specified duration, but capacitance is larger, the volume of electric capacity own is larger, is unfavorable for the use such as device miniaturization and handheld device.Two be the capacitance of electric capacity along with passage of time, capacitance can decay, and this like this circuit time is more of a specified duration, and functional reliability does not ensure.Three is that work depends on wherein charging capacitor and carrys out work, and use if first or do not use for a long time, electric capacity does not have electricity, and circuit can not work, and another one button must be used to come for capacitor charging, complex operation.
And the application for a patent for invention that application number is 201110062826.7 discloses a kind of Zero consumption standby circuit, and the zero-power of really meaning, because infrared receiver and decoded portion need always that powered operation is at standby mode, infrared receiver and decoded portion be electrical source consumption source inherently.
Summary of the invention
The object of the present invention is to provide a kind of easy and simple to handle, the switching circuit of the real zero-power of electric equipment in the standby state.
For realizing this object, present invention employs following technical scheme: a kind of zero-power switching circuit, comprise the first triode, the second triode, the 3rd triode, the 4th triode, described first triode and the second triode are PNP type triode, 3rd triode and the 4th triode are NPN type triode
The input of main power source is connected with the emitter of the first triode, the 4th resistance of bias has been connected with between the base stage of main power source input and the first triode, the collector electrode of the first triode connects the emitter of the second triode, between the collector electrode of the first triode and the base stage of the second triode, be connected the 8th resistance of bias, the collector electrode of the second triode is as the output of switching circuit;
The collector electrode of the first triode is also connected with the power input of microcontroller, the signal input part of microcontroller is connected with the starting switch of Switching Power Supply by the first diode, the other end ground connection of starting switch, the signal input part of microcontroller is also connected with main power source input by the second resistance, and the resistance of described second resistance is greater than the 4th resistance;
The signal output part of microcontroller is connected with the base stage of the 3rd triode with the 4th triode respectively, the collector electrode of the 3rd triode is connected with the base stage of the first triode, the collector electrode of the 3rd triode also connects the starting switch of ground connection, the grounded emitter of the 3rd triode by the second diode;
The collector electrode of the 4th triode is connected with the base stage of the second triode, the grounded emitter of the 4th triode.
As preferably, the emitter of described second triode and the collector electrode of the 8th resistance and the first triode disconnect the input being connected directly between main power source.
Further, the 3rd resistance is connected with between the base stage and microcontroller output signal of the 3rd triode, the base stage of the first triode and be connected with the 6th little resistance of one to the four resistance between the collector electrode of the 3rd triode and the second diode, the base stage of the 3rd triode be connected five resistance larger than the 3rd resistance between ground, the 7th resistance is connected with between the base stage of the 4th triode and microcontroller output signal, base stage and the ground of the 4th triode are directly connected nine resistance larger than the 7th resistance, ten resistance less than the 8th resistance is connected between the collector electrode of the 4th triode with the base stage of the second triode.
As preferably, described second triode is replaced with relay, the control coil of described relay is connected between the collector electrode of the first triode and the collector electrode of the 4th triode, the switch that relay control coil controls is connected between the input of main power source and the output of switching circuit, further, the 3rd resistance is connected with between the base stage and microcontroller output signal of the 3rd triode, the base stage of the first triode and be connected with the 6th little resistance of one to the four resistance between the collector electrode of the 3rd triode and the second diode, the base stage of the 3rd triode be connected five resistance larger than the 3rd resistance between ground, the 7th resistance is connected with between the base stage of the 4th triode and microcontroller output signal, base stage and the ground of the 4th triode are directly connected nine resistance larger than the 7th resistance.
As preferably, described starting switch is touch-switch, the young sheet switch of pot, thin film switch, water-proof type thin film switch.
Further, described second triode can be replaced field effect transistor or photoelectrical coupler.
The present invention contrasts prior art and has the following advantages: 1. without the need to relying on capacitor charging work, Long-Time Service is reliable and stable.2. a whole set of circuit selection volume is very little, can be microminiaturized, is conducive to the fixing fabric structure of equipment.3. use also without the need to charging first, without the need to multiple button, single-button operates, simple to operation.4. a whole set of circuit comprises control circuit, time in off position, does not power, does not work, and real zero-power meets energy-conserving and environment-protective spirit.5. the shift knob operating current of this cover switching circuit is minimum, can use the various switching devices such as the young sheet switch of touch-switch, pot, thin film switch, facilitate volume and the outward appearance demand of product, more can make water-proof type thin film switch etc. and be applied in special dimension.6. be applied in the handheld device using battery, greatly reduced volume and prolongation battery.
Accompanying drawing explanation
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 syndeton schematic diagram of microcontroller in the embodiment of the present invention.
Embodiment
Referring now to accompanying drawing, further describe the present invention.
Embodiment one:
As Figure 1 and Figure 4, a kind of zero-power switching circuit, comprise the first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th triode Q4, described first triode Q1 and the second triode Q2 is PNP type triode, 3rd triode Q3 and the 4th triode Q4 is NPN type triode
The input VCC IN of main power source is connected with the emitter of the first triode Q1, the 4th resistance R4 of bias has been connected with between the base stage of main power source input and the first triode Q1, the collector electrode of the first triode Q1 connects the emitter of the second triode Q2, between the collector electrode of the first triode Q1 and the base stage of the second triode Q2, be connected the 8th resistance R8 of bias, the collector electrode of the second triode Q2 is as the output of switching circuit;
The collector electrode of the first triode Q1 is connected with the power input U1VCC of microcontroller U1, the signal input part KEY IN of microcontroller U1 is connected with the touch-switch S1 of switching circuit by the first diode D24, the other end ground connection of touch-switch S1, the signal input part KEY IN of microcontroller U1 is also connected with main power source input VCC IN by the second resistance R2, and the resistance of described second resistance R2 is greater than the 4th resistance R4;
The signal output part KEY OUT of microcontroller U1 is connected with the base stage of the 4th triode Q4 with the 3rd triode Q3 respectively, the collector electrode of the 3rd triode Q3 is connected with the base stage of the first triode Q1, the collector electrode of the 3rd triode Q3 also connects the touch-switch S1 of ground connection, the grounded emitter of the 3rd triode Q3 by the second diode D25;
The collector electrode of the 4th triode Q4 is connected with the base stage of the second triode Q2, the grounded emitter of the 4th triode Q4.
The 3rd resistance R3 is connected with between the base stage and microcontroller U1 output signal KEY OUT of the 3rd triode Q3, the base stage of the first triode Q1 and be connected with the 6th little resistance R6 of one to the four resistance R4 resistance between the collector electrode of the 3rd triode Q3 and the second diode, the base stage of the 3rd triode Q3 be connected the five resistance R5 larger than the 3rd resistance R3 resistance between ground, the base stage of the 4th triode Q4 and microcontroller U1 output signal between KEY OUT and are connected with the 7th resistance R7, base stage and the ground of the 4th triode Q4 are directly connected the nine resistance R9 larger than the 7th resistance R7 resistance, the collector electrode of the 4th triode Q4 is connected the ten resistance R10 less than the 8th resistance R8 resistance with between the base stage of the second triode Q2.
The power input U1VCC of microcontroller U1 passes through reset (Reset) port link of the first resistance R1 and microcontroller U1, and the first resistance R1 is also by the first electric capacity C1 ground connection; Power input U1VCC is also by the 3rd electric capacity C3 ground connection, and the link of touch-switch S1 and the first diode D24 and the second diode D25 is by the second electric capacity C2 ground connection, and switching circuitry output VCC OUT is by the 4th electric capacity C4 ground connection.
The switches such as the young sheet switch of pot, thin film switch, water-proof type thin film switch can also be replaced with as preferred described touch-switch S1.
As preferably, the first triode Q1 and the second triode Q2 model are S8550, the 3rd triode Q3 and the 4th triode Q4 model are MMBT9103, and the model of the first diode D24 and the second diode D25 is IN4148; The resistance of the first resistance R1 is 15K, the resistance of the second resistance R2 is 330K, the resistance of the 3rd resistance R3 is 1K, the resistance of the 4th resistance R4 is 62K, and the resistance of the 5th resistance R5 is 330K, and the resistance of the 6th resistance R6 is 1K, the resistance of the 7th resistance R7 is 1K, the resistance of the 8th resistance R8 is 62K, and the resistance of the 9th resistance R9 is 330K, and the resistance of the tenth resistance R10 is 1K; The capacitance of the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4 is 0.01 μ F, and the model of microcontroller U1 is the single-chip microcomputer of 69P21.
The operation principle flow process of the present embodiment is as follows:
1. when main power source input VCC IN input power, at this moment the base stage of the first triode Q1 is drawn high as high level by the 4th resistance R4, first triode Q1 is cut-off state, the power input U1VCC of microcontroller U1 does not have voltage, microcontroller U1 does not work, signal input part KEY IN and the model output KEY OUT of microcontroller U1 are low level, second triode Q2,3rd triode Q3,4th triode Q4 is cut-off state, now switching circuitry output VCC OUT does not have voltage, and a whole set of circuit presents off state.
2. during touch-switch S1 down state, the base stage of the first triode Q1 is by the 6th resistance R6, second diode D25, touch-switch S1 receives ground, first triode Q1 base stage is low level, first triode Q1 is changed to conducting state, the power input U1VCC of microcontroller U1 and input voltage, microcontroller U1 starts normally to start work, start-up time is at Millisecond, after microcontroller U1 normally starts, continue to export high level state at signal output part KEY OUT port, now the 3rd triode Q3, the base stage of the 4th triode Q4 is high level, 3rd triode Q3, 4th triode Q4 conducting, 3rd triode Q3 conducting can be drawn as low level to the first triode Q1 base stage, 4th triode Q4 conducting can be drawn as low level to the second triode Q2 base stage, the output VCC OUT of the power input U1VCC of microcontroller U1 and switching circuit hold all with main power source input VCC IN conducting, a whole set of circuit turn-on enters normal operating conditions.
3. when touch-switch S1 releasing orientation, microcontroller U1 is in normal operating conditions, so its signal output part KEY OUT supports to continue present high level, continue the conducting state of maintenance first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th triode Q4, after touch-switch S1 unclamps, a whole set of circuit presents conducting state, and the power input U1VCC of microcontroller U1 and the output VCC OUT end of switching circuit have normal working voltage
4. under normally state, again press touch-switch S1, first, during normal operating conditions, microcontroller U1 can scan its signal input part KEY IN port level always, normally operating state, because the second resistance R2 pull-up, signal input part KEY IN continues to present high level state, and now microcontroller U1 does not do any action, continues the high level output maintaining its signal output part KEY OUT port, a whole set of circuit turn-on, normally works.When touch-switch S1 presses, by the first diode D24, signal input part KEY IN port level becomes low level state, after microprocessor detect to this change, changing signal output part KEY OUT port status is low level, now the second triode Q2, the 3rd triode Q3, the 4th triode Q4 present cut-off state, switching circuitry output VCC OUT place power-off, first triode Q1 is because conducting state pressed by switch, base stage is low level, first triode Q1 still conducting, continue as microcontroller U1 and power, single-chip microcomputer is still working on.After unclamping touch-switch S1, the first triode Q1 base stage is drawn as high level by the 4th resistance R4, and the first triode Q1 is converted to cut-off state, and power supply is thoroughly closed.
In the 4th step, when microcontroller U1 detects that touch-switch S1 is down state, detection time can be adjusted, such as: switch can be set and press and shut down immediately, also can arrange and detect that switch continues according to shutdown in 4 seconds, unused time can be arranged arbitrarily, can effectively prevent switch by by mistake by probability.
Embodiment two:
The difference of the present embodiment and embodiment one is mainly the emitter of described second triode Q2 and the collector electrode of the 8th resistance R8 and the first triode Q1 to disconnect and is connected directly between on the input VCC IN of main power source, other are consistent with embodiment one, the present embodiment is by skipping the first triode Q1 by the output VCC OUT position to take power of switching circuit, directly from the input VCC IN power taking of main power source, if big current operating circuit can use this circuit, it can reduce the current loss on circuit as far as possible.
Embodiment three:
The difference of the present embodiment and above-mentioned two embodiments is mainly, described second triode Q2 is replaced with relay, the control coil of described relay is connected between the collector electrode of the first triode Q1 and the collector electrode of the 4th triode Q4, the K switch 1 that relay control coil controls is connected between the input VCCIN of main power source and the output VCC OUT of switching circuit, and other are consistent with above-described embodiment.The present embodiment uses relay as a kind of circuit of system power taking, can expand fields such as being used in industrial big current or high voltage.
As preferably, described second triode can also replace with other controlled electron elements such as field effect transistor or photoelectrical coupler, and its control connection mode is all known by those skilled in the art.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within claims of the present invention.
Claims (8)
1. a zero-power switching circuit, it is characterized in that: comprise the first triode, the second triode, the 3rd triode, the 4th triode, described first triode and the second triode are PNP type triode, and the 3rd triode and the 4th triode are NPN type triode
The input of main power source is connected with the emitter of the first triode, the 4th resistance of bias has been connected with between the base stage of main power source input and the first triode, the collector electrode of the first triode connects the emitter of the second triode, between the collector electrode of the first triode and the base stage of the second triode, be connected the 8th resistance of bias, the collector electrode of the second triode is as the output of switching circuit;
The collector electrode of the first triode is also connected with the power input of microcontroller, the signal input part of microcontroller is connected with the starting switch of switching circuit by the first diode, the other end ground connection of starting switch, the signal input part of microcontroller is also connected with main power source input by the second resistance, and the resistance of described second resistance is greater than the 4th resistance;
The signal output part of microcontroller is connected with the base stage of the 3rd triode with the 4th triode respectively, the collector electrode of the 3rd triode is connected with the base stage of the first triode, the collector electrode of the 3rd triode also connects the starting switch of ground connection, the grounded emitter of the 3rd triode by the second diode;
The collector electrode of the 4th triode is connected with the base stage of the second triode, the grounded emitter of the 4th triode.
2. zero-power switching circuit according to claim 1, is characterized in that: the emitter of described second triode and the collector electrode of the 8th resistance and the first triode disconnect the input being connected directly between main power source.
3. zero-power switching circuit according to claim 2, it is characterized in that: described second triode is replaced with relay, the control coil of described relay is connected between the collector electrode of the first triode and the collector electrode of the 4th triode, and the switch that relay control coil controls is connected between the input of main power source and the output of switching circuit.
4. zero-power switching circuit according to claim 1 and 2, is characterized in that: described second triode can be replaced field effect transistor or photoelectrical coupler.
5. zero-power switching circuit according to claim 1 and 2, is characterized in that: described starting switch is touch-switch, the young sheet switch of pot, thin film switch, water-proof type thin film switch.
6. zero-power switching circuit according to claim 3, is characterized in that: described starting switch is touch-switch, the young sheet switch of pot, thin film switch, water-proof type thin film switch.
7. zero-power switching circuit according to claim 5, it is characterized in that: between the base stage and microcontroller output signal of the 3rd triode, be connected with the 3rd resistance, the base stage of the first triode and be connected with the 6th little resistance of one to the four resistance between the collector electrode of the 3rd triode and the second diode, the base stage of the 3rd triode be connected five resistance larger than the 3rd resistance between ground, the 7th resistance is connected with between the base stage of the 4th triode and microcontroller output signal, base stage and the ground of the 4th triode are directly connected nine resistance larger than the 7th resistance, ten resistance less than the 8th resistance is connected between the collector electrode of the 4th triode with the base stage of the second triode.
8. zero-power switching circuit according to claim 6, it is characterized in that: between the base stage and microcontroller output signal of the 3rd triode, be connected with the 3rd resistance, the base stage of the first triode and be connected with the 6th little resistance of one to the four resistance between the collector electrode of the 3rd triode and the second diode, the base stage of the 3rd triode be connected five resistance larger than the 3rd resistance between ground, the 7th resistance is connected with between the base stage of the 4th triode and microcontroller output signal, base stage and the ground of the 4th triode are directly connected nine resistance larger than the 7th 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 true CN104639139A (en) | 2015-05-20 |
| CN104639139B CN104639139B (en) | 2018-02-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911904A (en) * | 2016-04-11 | 2016-08-31 | 深圳市泰科汉泽精密电子有限公司 | Touch switch device circuit, control circuit and control method |
| CN106452402A (en) * | 2015-08-04 | 2017-02-22 | 厦门雅迅网络股份有限公司 | Method for opening and closing device power supply through button |
| CN107678336A (en) * | 2017-09-27 | 2018-02-09 | 厦门芯阳科技股份有限公司 | A kind of power supply zero power consumption circuit |
| CN107769761A (en) * | 2017-11-14 | 2018-03-06 | 深圳市银星智能科技股份有限公司 | Low power consumption switch control circuit and mobile robot |
| CN116088362A (en) * | 2022-11-01 | 2023-05-09 | 深圳市谷粒科技有限公司 | Device micro-power consumption intelligent control device, method, system and medium |
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 |
| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452402A (en) * | 2015-08-04 | 2017-02-22 | 厦门雅迅网络股份有限公司 | Method for opening and closing device power supply through button |
| CN106452402B (en) * | 2015-08-04 | 2021-08-13 | 厦门雅迅网络股份有限公司 | Method for turning on and off power supply of equipment by key |
| CN105911904A (en) * | 2016-04-11 | 2016-08-31 | 深圳市泰科汉泽精密电子有限公司 | Touch switch device circuit, control circuit and control method |
| CN107678336A (en) * | 2017-09-27 | 2018-02-09 | 厦门芯阳科技股份有限公司 | A kind of power supply zero power consumption circuit |
| CN107769761A (en) * | 2017-11-14 | 2018-03-06 | 深圳市银星智能科技股份有限公司 | Low power consumption switch control circuit and mobile robot |
| CN107769761B (en) * | 2017-11-14 | 2024-03-26 | 深圳银星智能集团股份有限公司 | Low-power-consumption switch control circuit and mobile robot |
| CN116088362A (en) * | 2022-11-01 | 2023-05-09 | 深圳市谷粒科技有限公司 | Device micro-power consumption intelligent control device, method, system and medium |
| CN116088362B (en) * | 2022-11-01 | 2023-09-01 | 深圳市谷粒科技有限公司 | Device micro-power consumption intelligent control device, method, system and medium |
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