CN204697345U - A kind of centralized control electronic switching circuit - Google Patents
A kind of centralized control electronic switching circuit Download PDFInfo
- Publication number
- CN204697345U CN204697345U CN201520371296.8U CN201520371296U CN204697345U CN 204697345 U CN204697345 U CN 204697345U CN 201520371296 U CN201520371296 U CN 201520371296U CN 204697345 U CN204697345 U CN 204697345U
- Authority
- CN
- China
- Prior art keywords
- optocoupler
- circuit
- centralized control
- rectifier bridge
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a kind of centralized control electronic switching circuit.Solve existing centralized control electronic switch and connect other types switch time there is load lamp and can not turn off, the problem that can not normally use.Circuit comprises the optocoupler control circuit connected successively, controlled circuits for triggering, controllable silicon and rectification circuit, optocoupler control circuit comprises optocoupler, the negative pole of optocoupler forms centralized control end, the two ends of optocoupler are parallel with triode, transistor collector is connected with optocoupler positive pole, transistor emitter is connected with optocoupler negative pole, the zero line input of rectification circuit is connected to the collector electrode of triode by the first bleeder circuit, the live wire input of rectification circuit is connected to the base stage of triode by the second bleeder circuit, the base stage of triode is connected with centralized control end.To the utility model has the advantages that user and after the tool double control switch that picks, avoid the problem disconnecting collection control signal back loading lamp still Chang Liang, maintain load lamp and normally use.
Description
Technical field
The utility model relates to a kind of ON-OFF control circuit, particularly relates to a kind of centralized control electronic switching circuit preventing switch energy-saving load lamp to lose efficacy.
Background technology
The auto-controlled energy-saving switches such as existing infrared induction, acousto-optic control, people through or after sounding, automatically can light load lamp, can automatic distinguishing after time delay a period of time, thus reach the not only easy to use but also object of power and energy saving.Some place also requires when particular case simultaneously, and the load lamp that all automatic control switchs can be allowed to control by a collection control switch is in normal bright state, and after closing this collection control switch, all automatic control switchs return to normal operation state again.Existing a lot of similar products adopt as Fig. 2 circuit arrangement can realize this kind of requirement, but this circuit arrangement requirement similar-type products can realize.When user conveniently control, save cost or other reason and connect mechanical double control switch time, open collection control switch, namely centralized control end C inputs the alternating current with live wire input L homophase, the conducting of optocoupler U1 input circuit, by electrochemical capacitor C1 storage electricity and by diode D3 to the controlled circuit supply that sets out, controlled circuits for triggering 3 pin is made to be in high level, then controlled circuits for triggering 1 pin is also in high level, make controllable silicon SCR 1 conducting, load lamp L1 lights, as long as centralized control end C is in continuous power supply state, load lamp L1 is lit always.But after closure set control switch, due to the existence of load lamp L2, when the zero line input end be connected with load lamp L2 is in alternating current negative half period, through overcurrent R1 current limliting, after diode D2 rectification, flow through diode between rectifier bridge 3 pin and 2 pin, to flow into and through diode between rectifier bridge 4 pin and 1 pin from the controllable silicon SCR 1 of triggering and conducting again, loop is formed with live wire input, power to optocoupler U1 input circuit, to the controlled circuit supply that sets out, controlled circuits for triggering 3 pin is made to be in high level, make controllable silicon SCR constant conduction, even if centralized control end is stopped power supply, load lamp L1 continues to light and can not turn off, the normal object used can not be realized.
Summary of the invention
The utility model mainly solve existing centralized control electronic switch and connect other types switch time there is load lamp and can not turn off, the problem that can not normally use, provides a kind of centralized control electronic switching circuit preventing switch energy-saving load lamp to lose efficacy.
The utility model solves the technical scheme that its technical problem adopts: a kind of centralized control electronic switching circuit, comprise the optocoupler control circuit connected successively, controlled circuits for triggering, controllable silicon and rectification circuit, optocoupler control circuit comprises optocoupler, the negative pole of optocoupler forms centralized control end, it is characterized in that: the two ends of optocoupler are parallel with triode, transistor collector is connected with optocoupler positive pole, transistor emitter is connected with optocoupler negative pole, the zero line input of rectification circuit is connected to the collector electrode of triode by the first bleeder circuit, the live wire input of rectification circuit is connected to the base stage of triode by the second bleeder circuit, and the base stage of triode is connected with centralized control end.The utility model is user and after the tool double control switch that picks, and avoids the problem disconnecting collection control signal back loading lamp still Chang Liang, maintains the normal application target of load lamp.The utility model is after disconnection collection control signal, and suppress electric current by optocoupler by triode, thus centralized control circuit is ended, control controllable silicon and disconnect, rectification circuit is disconnected, load lamp extinguishes.
A kind of prioritization scheme of this programme, described first bleeder circuit comprises diode D2 and resistance R3, and diode D2 positive pole is connected with rectification circuit zero line input, and diode D2 negative pole contact resistance R3 one end, the resistance R3 other end is connected with transistor collector.
A kind of prioritization scheme of this programme, described second bleeder circuit comprises diode D3 and resistance R4, and diode D3 positive pole is connected with rectification circuit live wire input, and diode D3 negative pole contact resistance R4 one end, the resistance R4 other end is connected with transistor base.
A kind of prioritization scheme of this programme, the base stage of described triode is connected with centralized control end by after contact resistance R1.
A kind of prioritization scheme of this programme, described rectification circuit comprises load lamp L1, rectifier bridge, rectifier bridge comprises four connecting pins, rectifier bridge 1 pin is connected with zero line input, rectifier bridge 4 pin is connected with live wire input, rectifier bridge 2 pin is connected with 3 pin, described load lamp L1 is connected between rectifier bridge 1 pin and zero line input, first bleeder circuit is connected to rectifier bridge and is connected between rectifier bridge 1 pin and load lamp L1 on line, controllable silicon positive pole is connected with rectifier bridge 2 pin, and controllable silicon negative pole is connected with rectifier bridge 3 pin.
A kind of prioritization scheme of this programme, described controlled circuits for triggering comprise control input end, signal output part, power input and power output end, SCR control end is connected with signal output part, optocoupler control circuit is connected with control input end, power input is connected to controllable silicon positive pole, and power output end is connected to controllable silicon negative pole.Controlled circuits for triggering signal output part is according to whether being subject to foeign element triggering, under normal condition, signal output part is low level, when foeign element triggers, signal output part exports high level, synchronous signal output also controlled input controls, signal is had to input in control input end, then signal output part keeps exporting high level, and control input end no signal inputs, then signal output part is according to normal condition work.
A kind of prioritization scheme of this programme, described optocoupler control circuit also includes resistance R2, diode D4 and electrochemical capacitor C1, optocoupler collector electrode connects positive source, optocoupler emitter connects electrochemical capacitor C1 positive pole and diode D4 positive pole respectively, electrochemical capacitor C1 minus earth, diode D4 negative pole connects the control input end of controlled circuits for triggering, and resistance R2 is connected between the positive pole of optocoupler and negative pole.Be in negative half period at alternating current, and when centralized control end C has an input signal, the conducting of optocoupler control circuit, optocoupler control circuit there is signal input control input.
The utility model has the advantages that: increase the first bleeder circuit, the second bleeder circuit and triode, user and after the tool double control switch that picks, avoid the problem disconnecting collection control signal back loading lamp still Chang Liang, maintain load lamp and normally use.
Accompanying drawing explanation
Fig. 1 is a kind of electrical block diagram of the present utility model;
Fig. 2 is a kind of circuit structure diagram that in background technology, centralized control circuit generally adopts.
1-rectification circuit 2-controlled circuits for triggering 21-control input end 22-signal output part 23-power input 24-power output end 3-optocoupler control circuit 4-first bleeder circuit 5-second bleeder circuit.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described.
Embodiment:
A kind of centralized control electronic switching circuit of the present embodiment, as shown in Figure 1, comprises the optocoupler control circuit 3, controlled circuits for triggering 2, rectification circuit 1, the controllable silicon SCR 1 that connect successively.Optocoupler control circuit comprises optocoupler U1, the negative pole of optocoupler U1 forms centralized control end C, the two ends of optocoupler U1 are parallel with triode Q3, triode Q3 collector electrode is connected with optocoupler U1 positive pole, triode Q3 emitter is connected with optocoupler U1 negative pole, the zero line input of rectification circuit 1 is connected to the collector electrode of triode Q3 by the first bleeder circuit 4, the live wire input of rectification circuit 1 is connected to the base stage of triode by the second bleeder circuit 5, and the base stage of triode Q3 is connected with centralized control end C by after contact resistance R1.
Controlled circuits for triggering 2 comprise control input end 21, signal output part 22, power input 23 and power output end 24.
Rectification circuit comprises load lamp L1 and rectifier bridge, rectifier bridge comprises four connecting pins, rectifier bridge 1 pin is connected with zero line input, rectifier bridge 4 pin is connected with live wire input, rectifier bridge 2 pin is connected with 3 pin, and load lamp L1 is connected between rectifier bridge 1 pin and zero line input, and controllable silicon SCR 1 positive pole is connected with rectifier bridge 2 pin, controllable silicon SCR 1 negative pole is connected with rectifier bridge 3 pin, controllable silicon SCR 1 control end be connected to controlled go out the signal output part 22 of Power Generation Road 2.
First bleeder circuit 4 comprises diode D2 and resistance R3, and diode D2 positive pole is connected between rectifier bridge 1 pin and load lamp L1 on line, and diode D2 negative pole contact resistance R3 one end, the resistance R3 other end is connected with transistor collector.
Second bleeder circuit 5 comprises diode D3 and resistance R4, and diode D3 positive pole is connected with rectification circuit live wire input, and diode D3 negative pole contact resistance R4 one end, the resistance R4 other end is connected with transistor base.
Optocoupler control circuit 3 also includes resistance R2, diode D4 and electrochemical capacitor C1, optocoupler U1 collector electrode connects positive source, optocoupler U1 emitter connects electrochemical capacitor C1 positive pole and diode D4 positive pole respectively, electrochemical capacitor C1 minus earth, diode D4 negative pole connects the control input end 21 of controlled circuits for triggering 2, between the positive pole that resistance R2 is connected to optocoupler U1 and negative pole.
The present embodiment not and pick tool double control switch time, namely in Fig. 1 circuit, in the dotted line frame of the upper right corner, mechanical double control switch does not connect.When circuit is in triggered as normal state, if controlled circuits for triggering are not subject to the triggering of foeign element (pass through as people or sound), the signal output part 22 of controlled circuits for triggering is in low level, now controllable silicon SCR 1 is in cut-off state, and load lamp L1 does not have electric current to flow through and is in OFF state; If after the foeign element that is subject to controlled circuits for triggering triggers, the signal output part 22 of controlled circuits for triggering becomes high level from low level, controllable silicon SCR 1 triggering and conducting, electric current flows into from rectification circuit live wire input L through 3 pin of rectifier bridge and 2 pin, flowed out by controllable silicon SCR 1 again, and flow to load lamp L1 through 4 pin of rectifier bridge and 1 pin, finally arrive rectification circuit zero line input N, now load lamp L1 obtains electric lighting.Through after a period of time, the signal input part 22 of controlled circuits for triggering transfers low level to by high level, and now controllable silicon SCR 1 is in cut-off state again, and load lamp L1 dead electricity is extinguished.So just reach the object of intelligent automatic control, it is bright that people carrys out load lamp L1, and people walks load lamp L1 and goes out, convenient management.
When after the alternating current that centralized control end C accesses with rectification circuit live wire input L homophase, when alternating current is in negative half period, electric current is through rectification circuit zero line input N, after load lamp L1, diode D2, resistance R3, flow into the input circuit of photoelectrical coupler U1, then form loop with centralized control end C; The now output loop conducting of optocoupler U1, positive source VCC charges to electrochemical capacitor C1, and through diode D4, the control input end 21 of controlled circuits for triggering is made to be in high level, through conversion, the signal output part 22 of controlled circuits for triggering is also in high level, now controllable silicon SCR 1 triggering and conducting, and load lamp L1 is lit; As long as at this moment centralized control end C is in power supply state, load lamp L1 would not extinguish, and is in normal bright state.When alternating current is in positive half cycle, voltage is not had between the both positive and negative polarity of the input circuit of optocoupler U1, now the output loop of optocoupler U1 is in cut-off state, but change very fast between the positive-negative half-cycle due to alternating current, due to the energy storage effect of electrochemical capacitor C1, can ensure that alternating current is when positive half cycle, the signal output part of controlled circuits for triggering is still in high level, ensure that the normal bright state of load lamp L1.When after the plant-grid connection disconnecting centralized control end C, the output loop cut-off of optocoupler U1, the signal output part of controlled circuits for triggering transfers low level to by high level after quite short a period of time, and controllable silicon SCR 1 is ended, load lamp L1 dead electricity is extinguished, and now whole circuit is in normal operation state again.
And pick tool double control switch time, namely in Fig. 1 circuit, mechanical double control switch K is accessed in the upper right corner.When circuit is in triggered as normal state, similar above analysis, this circuit can normally work; When centralized control end C access with the alternating current of rectification circuit live wire input L homophase after, analyze with above, can the normal bright state of proof load lamp L1; When after the plant-grid connection disconnecting centralized control end C, the electric current on rectification circuit live wire input L mono-tunnel is by after diode D3, resistance R4 and resistance R1, through mechanical double control switch K, load lamp L2 flows into zero-power line end N, forms loop, and now the base stage of triode Q1 forms bias voltage; Another road electric current of rectification circuit live wire input L through 3 pin of rectifier bridge and 2 pin, the anode of controllable silicon SCR 1 and negative electrode, and from 4 pin of rectifier bridge and 1 pin, again from diode D2, resistance R3, flows through the collector and emitter of triode Q1, makes triode Q1 be in saturation conduction state.Because the voltage between collector and emitter during triode Q1 saturation conduction is less than 0.8V, and optocoupler U1 input circuit normal working voltage be 1.2V, therefore electric current only flows into the collector electrode of triode Q1 and can not flow into the input circuit of optocoupler U1, therefore optocoupler U1 is saturated the triode Q1 suppression of conducting and ends, make the signal output part of controlled circuits for triggering after a period of time, transfer low level to by high level, cause controllable silicon SCR 1 to be in cut-off state, load lamp L1 extinguishes.After this ensures that thering the plant-grid connection disconnecting centralized control end C, load lamp L1 also and then extinguishes, and centralized control abnormal phenomenon when there will not be centralized control end C to access mechanical double control switch K control load lamp L2.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as rectification circuit, controlled circuits for triggering, control input end, signal output part, power input herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. a centralized control electronic switching circuit, comprise connect successively optocoupler control circuit,
Controlled circuits for triggering, controllable silicon and rectification circuit, optocoupler control circuit comprises optocoupler, the negative pole of optocoupler forms centralized control end, it is characterized in that: the two ends of optocoupler are parallel with triode, transistor collector is connected with optocoupler positive pole, transistor emitter is connected with optocoupler negative pole, the zero line input of rectification circuit (1) is connected to the collector electrode of triode by the first bleeder circuit (4), the live wire input of rectification circuit is connected to the base stage of triode by the second bleeder circuit (5), and the base stage of triode is connected with centralized control end.
2. a kind of centralized control electronic switching circuit according to claim 1, is characterized in that
Described first bleeder circuit (4) comprises diode D2 and resistance R3, and diode D2 positive pole is connected with rectification circuit zero line input, and diode D2 negative pole contact resistance R3 one end, the resistance R3 other end is connected with transistor collector.
3. a kind of centralized control electronic switching circuit according to claim 1, is characterized in that
Described second bleeder circuit (5) comprises diode D3 and resistance R4, and diode D3 positive pole is connected with rectification circuit live wire input, and diode D3 negative pole contact resistance R4 one end, the resistance R4 other end is connected with transistor base.
4. a kind of centralized control electronic switching circuit according to claim 1 or 2 or 3, is characterized in that the base stage of described triode is by being connected with centralized control end after contact resistance R1.
5. a kind of centralized control electronic switching circuit according to claim 1 or 2 or 3, it is characterized in that described rectification circuit (1) comprises load lamp L1, rectifier bridge, rectifier bridge comprises four connecting pins, rectifier bridge 1 pin is connected with zero line input, rectifier bridge 4 pin is connected with live wire input, rectifier bridge 2 pin is connected with 3 pin, described load lamp L1 is connected between rectifier bridge 1 pin and zero line input, first bleeder circuit is connected to rectifier bridge and is connected between rectifier bridge 1 pin and load lamp L1 on line, controllable silicon positive pole is connected with rectifier bridge 2 pin, controllable silicon negative pole is connected with rectifier bridge 3 pin.
6. a kind of centralized control electronic switching circuit according to claim 1 or 2 or 3, it is characterized in that described controlled circuits for triggering (2) comprise control input end (21), signal output part (22), power input (23) and power output end (24), SCR control end is connected with signal output part, optocoupler control circuit (3) is connected with control input end, power input is connected to controllable silicon positive pole, and power output end is connected to controllable silicon negative pole.
7. a kind of centralized control electronic switching circuit according to claim 6, it is characterized in that described optocoupler control circuit (3) also includes resistance R2, diode D4 and electrochemical capacitor C1, optocoupler collector electrode connects positive source, optocoupler emitter connects electrochemical capacitor C1 positive pole and diode D4 positive pole respectively, electrochemical capacitor C1 minus earth, diode D4 negative pole connects the control input end (21) of controlled circuits for triggering (2), and resistance R2 is connected between the positive pole of optocoupler and negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371296.8U CN204697345U (en) | 2015-06-02 | 2015-06-02 | A kind of centralized control electronic switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520371296.8U CN204697345U (en) | 2015-06-02 | 2015-06-02 | A kind of centralized control electronic switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204697345U true CN204697345U (en) | 2015-10-07 |
Family
ID=54237591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520371296.8U Active CN204697345U (en) | 2015-06-02 | 2015-06-02 | A kind of centralized control electronic switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204697345U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849927A (en) * | 2017-02-18 | 2017-06-13 | 王立新 | Two-wire system electronic switch and fire-fighting illumination control circuit |
| CN111601424A (en) * | 2020-06-02 | 2020-08-28 | 上海安导电子科技有限公司 | Intelligent switch control management device and method suitable for street lamp |
| CN112165322A (en) * | 2020-09-30 | 2021-01-01 | 广东美的厨房电器制造有限公司 | Communication circuit and cooking utensil |
| CN112702812A (en) * | 2021-01-16 | 2021-04-23 | 正阳县合兴灯饰有限公司 | LED driving method and driving circuit |
| CN113676221A (en) * | 2021-08-23 | 2021-11-19 | 深圳市几度创想科技有限公司 | Decoding method of power line carrier |
-
2015
- 2015-06-02 CN CN201520371296.8U patent/CN204697345U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849927A (en) * | 2017-02-18 | 2017-06-13 | 王立新 | Two-wire system electronic switch and fire-fighting illumination control circuit |
| CN106849927B (en) * | 2017-02-18 | 2024-02-20 | 广东誉顺电器有限公司 | Two-wire electronic switch and fire-fighting lighting control circuit |
| CN111601424A (en) * | 2020-06-02 | 2020-08-28 | 上海安导电子科技有限公司 | Intelligent switch control management device and method suitable for street lamp |
| CN112165322A (en) * | 2020-09-30 | 2021-01-01 | 广东美的厨房电器制造有限公司 | Communication circuit and cooking utensil |
| CN112702812A (en) * | 2021-01-16 | 2021-04-23 | 正阳县合兴灯饰有限公司 | LED driving method and driving circuit |
| CN112702812B (en) * | 2021-01-16 | 2023-04-07 | 正阳县合兴灯饰有限公司 | LED driving method and driving circuit |
| CN113676221A (en) * | 2021-08-23 | 2021-11-19 | 深圳市几度创想科技有限公司 | Decoding method of power line carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204697345U (en) | A kind of centralized control electronic switching circuit | |
| CN202454840U (en) | Multipurpose delay power socket | |
| CN101867293B (en) | Batch type current consuming quasi-zero power consumption standby control circuit | |
| CN104868586A (en) | Automatic switching power supply circuit for double-way power supply | |
| CN204633464U (en) | Double loop power supply automatic switching power supply circuits | |
| CN107037848A (en) | A kind of intelligent domestic system based on Internet of Things | |
| CN206923111U (en) | A kind of single live wire total power touch switch circuit | |
| CN201383758Y (en) | Intermittent type electricity consumption quasi-zero power consumption standby control circuit | |
| CN204215965U (en) | A kind of drive circuit of magnetic latching relay | |
| CN106879147A (en) | A kind of single live wire total power touch switch circuit | |
| CN107205301A (en) | A kind of dual power supply LED power supply circuit | |
| CN204559952U (en) | A kind of for the intelligent switch controller in intelligent illuminating system | |
| CN106981784A (en) | A kind of energy-saving Zero-power-consumption standby Socket for computor circuit | |
| CN204559951U (en) | A kind of intelligent illuminating system | |
| CN103683264A (en) | Circuit for preventing reverse plug in of direct current power supply and lamp | |
| CN203378106U (en) | LED emergency illuminating device | |
| CN203287705U (en) | Control circuit of time relay | |
| CN103200735B (en) | Light-emitting diode (LED) actuator preventing LED from flickering | |
| CN102570200A (en) | Multi-purpose delayed power socket | |
| CN204597919U (en) | A kind of multipoint control switch | |
| CN204616179U (en) | The fiery power taking auxiliary circuit of a kind of novel list | |
| CN203968094U (en) | Energy-saving safe switch | |
| CN206865788U (en) | A kind of circuit of corridor light of energy saving | |
| CN108377026B (en) | Single-wire power-taking circuit based on wall switch | |
| CN105356871B (en) | Zero-power-consumption standby touches power down switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |