CN204244073U - A kind of controllable direct current power supply circuit - Google Patents
A kind of controllable direct current power supply circuit Download PDFInfo
- Publication number
- CN204244073U CN204244073U CN201420755975.0U CN201420755975U CN204244073U CN 204244073 U CN204244073 U CN 204244073U CN 201420755975 U CN201420755975 U CN 201420755975U CN 204244073 U CN204244073 U CN 204244073U
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- emitter
- collector electrode
- base stage
- 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
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model discloses a kind of controllable direct current power supply circuit, its key is: described circuit comprises the collector electrode of the triode Q2 be communicated with Input voltage terminal, the collector electrode of resistance R3 and triode Q1; The base stage of triode Q2 is by resistance R1 connection control signal end, and the emitter of triode Q1 is by electric capacity C1 ground connection, and the emitter of triode Q1 passes through the base stage of resistance R2 connecting triode Q3; The collector electrode of triode Q3 passes through the collector electrode of resistance R3 connecting triode Q1, the base stage of emitter connecting triode Q1 of triode Q3 and the collector electrode of triode Q4; The emitter of triode Q1 is connected output voltage terminal with the base stage of triode Q4 by voltage stabilizing didoe ZD1; The base stage of triode Q4 passes through the emitter of resistance R4 connecting triode Q4.The utility model Design and manufacture is with low cost; Unnecessary electrical source consumption can be avoided, and applied widely, there is the advantage that leakage current is little.
Description
Technical field
the utility model relates to a kind of controllable direct current power supply circuit.
Background technology
Current DC power supply integrated circuit is various in style, but majority is not controlled, just works once switch on power always.The special controllable direct current power supply integrated circuit of minority can realize controlled, but Design and manufacture cost is general higher, and can only be used for specific area; Therefore, its range of application is extensive not, is difficult to penetration and promotion.
Utility model content
The purpose of this utility model is to provide a kind of controllable direct current power supply circuit.
To achieve these goals, by the following technical solutions: a kind of controllable direct current power supply circuit, is characterized in that: described controllable direct current power supply circuit comprises the collector electrode of the collector electrode of the triode Q2 be communicated with successively with Input voltage terminal, one end of resistance R3 and triode Q1; The base stage of triode Q2 is connected with control signal end by resistance R1, and the emitter of triode Q1 is by electric capacity C1 ground connection, and the emitter of triode Q1 is also connected with the base stage of triode Q3 by resistance R2; The collector electrode of triode Q3 passes through the collector electrode of resistance R3 connecting triode Q1, the emitter base stage of connecting triode Q1 and the collector electrode of triode Q4 respectively of triode Q3; The emitter of triode Q1 connects output voltage terminal; The base stage of triode Q4 connects output voltage terminal by voltage stabilizing didoe ZD1, and the base stage of triode Q4 is also communicated with the emitter of triode Q4 and ground connection by resistance R4; Electric capacity C2 is connected with output voltage terminal with one end after electric capacity C3 parallel connection, other end ground connection.
The utility model principle is simple, and all adopt conventional device design, its Design and manufacture is with low cost; Can also control power module according to control signal, according to control signal powered-down, unnecessary electrical source consumption can be avoided unwanted time, enhance duration and the ability of DC power supply; And the utility model is applied widely, control signal applicatory comprises a lot of signal of motor, transducer, instrument transformer, igniter etc., only needs model and the resistance R3 of Modulating Power triode Q1 simultaneously, just can be suitable for the occasion of various power stage; In addition, circuit of the present utility model also has the little advantage of leakage current, and when not working, circuit leakage current is less than 10uA.Therefore, there is very strong practical value.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, a kind of controllable direct current power supply circuit, comprises the collector electrode of the collector electrode of the triode Q2 be communicated with successively with Input voltage terminal, one end of resistance R3 and triode Q1; The base stage of triode Q2 is connected with control signal end by resistance R1, and the emitter of triode Q1 is by electric capacity C1 ground connection, and the emitter of triode Q1 is also connected with the base stage of triode Q3 by resistance R2; The collector electrode of triode Q3 passes through the collector electrode of resistance R3 connecting triode Q1, the emitter base stage of connecting triode Q1 and the collector electrode of triode Q4 respectively of triode Q3; The emitter of triode Q1 connects output voltage terminal; The base stage of triode Q4 connects output voltage terminal by voltage stabilizing didoe ZD1, and the base stage of triode Q4 is also communicated with the emitter of triode Q4 and ground connection by resistance R4; Electric capacity C2 is connected with output voltage terminal with one end after electric capacity C3 parallel connection, other end ground connection.
The utility model principle is simple, and all adopt conventional device design, its Design and manufacture is with low cost; Can also control power module according to control signal, according to control signal powered-down, unnecessary electrical source consumption can be avoided unwanted time, enhance duration and the ability of DC power supply; And the utility model is applied widely, control signal applicatory comprises a lot of signal of motor, transducer, instrument transformer, igniter etc., only needs model and the resistance R3 of Modulating Power triode Q1 simultaneously, just can be suitable for the occasion of various power stage; In addition, circuit of the present utility model also has the little advantage of leakage current, and when not working, circuit leakage current is less than 10uA.Therefore, there is very strong practical value.
Claims (1)
1. a controllable direct current power supply circuit, is characterized in that: described controllable direct current power supply circuit comprises the collector electrode of the collector electrode of the triode Q2 be communicated with successively with Input voltage terminal, one end of resistance R3 and triode Q1; The base stage of triode Q2 is connected with control signal end by resistance R1, and the emitter of triode Q1 is by electric capacity C1 ground connection, and the emitter of triode Q1 is also connected with the base stage of triode Q3 by resistance R2; The collector electrode of triode Q3 passes through the collector electrode of resistance R3 connecting triode Q1, the emitter base stage of connecting triode Q1 and the collector electrode of triode Q4 respectively of triode Q3; The emitter of triode Q1 connects output voltage terminal; The base stage of triode Q4 connects output voltage terminal by voltage stabilizing didoe ZD1, and the base stage of triode Q4 is also communicated with the emitter of triode Q4 and ground connection by resistance R4; Electric capacity C2 is connected with output voltage terminal with one end after electric capacity C3 parallel connection, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755975.0U CN204244073U (en) | 2014-12-05 | 2014-12-05 | A kind of controllable direct current power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755975.0U CN204244073U (en) | 2014-12-05 | 2014-12-05 | A kind of controllable direct current power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204244073U true CN204244073U (en) | 2015-04-01 |
Family
ID=52773514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420755975.0U Active CN204244073U (en) | 2014-12-05 | 2014-12-05 | A kind of controllable direct current power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204244073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410274A (en) * | 2014-12-05 | 2015-03-11 | 重庆瑜欣平瑞电子有限公司 | Controlled direct-current power circuit |
-
2014
- 2014-12-05 CN CN201420755975.0U patent/CN204244073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410274A (en) * | 2014-12-05 | 2015-03-11 | 重庆瑜欣平瑞电子有限公司 | Controlled direct-current power circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204375154U (en) | A kind of infrared transmitting circuit | |
| CN204244073U (en) | A kind of controllable direct current power supply circuit | |
| CN204180331U (en) | A kind of protective circuit of LED power | |
| CN202996717U (en) | Relay drive circuit in resistance-capacitance voltage drop-down circuit | |
| CN205375223U (en) | The low voltage power supply control by temperature change circuit | |
| CN205039703U (en) | Intelligence step -down formula switching power supply | |
| CN204967620U (en) | Be used for IGBT driven power supply circuit | |
| CN203261314U (en) | Modulator circuit based on NAND gate integrated circuit | |
| CN104410274A (en) | Controlled direct-current power circuit | |
| CN205142003U (en) | DC -DC converter | |
| CN202870537U (en) | Power switch with self-protection and control functions | |
| CN203225708U (en) | Instrumentation amplifier circuit | |
| CN204795713U (en) | LED step -down voltage stabilizing circuit | |
| CN203180885U (en) | Optical control circuit based on decimal counter pulse frequency divider | |
| CN204030944U (en) | A kind of power initiation dummy load circuit | |
| CN204206185U (en) | Be applicable to the laser transmission radiating circuit of short distance information transmission | |
| CN203466727U (en) | Miniwatt voltage stabilizing source circuit | |
| CN202998036U (en) | One-button-long-pressing switching circuit | |
| CN202586291U (en) | Overload protection circuit | |
| CN102858065B (en) | Universal direct-current LED driving power source | |
| CN203230609U (en) | Efficient fan control circuit based on switch regulator | |
| CN206442282U (en) | Low-loss reduction voltage circuit | |
| CN207720132U (en) | A kind of WIFI module power shutdown circuit | |
| CN204559924U (en) | The LED drive device of impulse current can be absorbed | |
| CN205142004U (en) | DC -DC (direct current -direct current) converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401326 Chongqing Jiulongpo District West Peng Aluminum City Road No. 88 of No. 1 Patentee after: CHONGQING YUXIN PINRUI ELECTRONIC CO., LTD. Address before: 401326 Chongqing Jiulongpo District West Peng Aluminum City Road No. 88 of No. 1 Patentee before: Chongqing Yuxin Pingrui Electronic Co., Ltd. |