CN204835933U - Intelligence switch constant voltage power supply circuit - Google Patents
Intelligence switch constant voltage power supply circuit Download PDFInfo
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- CN204835933U CN204835933U CN201520588849.5U CN201520588849U CN204835933U CN 204835933 U CN204835933 U CN 204835933U CN 201520588849 U CN201520588849 U CN 201520588849U CN 204835933 U CN204835933 U CN 204835933U
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Abstract
The utility model discloses an intelligence switch constant voltage power supply circuit, including rectifier bridge Q, electric capacity C1, resistance R1, double base diode VT1, triode VT2 and transformer T, 220V alternating current both ends are connected respectively with rectifier bridge Q pin 3 to rectifier bridge Q pin 1, 2 difference connecting resistance R1 of rectifier bridge Q pin, resistance R6, electric capacity C7 and transformer T primary, the resistance R1 other end is connecting resistance R2 respectively, potentiometre RP, potentiometre RP gleitbretter, electric capacity C2 and resistance R4, the first base of double base diode VT1 is connected to the resistance R4 other end, electric capacity C3 and resistance R3 are connected respectively to the double base diode VT1 projecting pole. The utility model discloses intelligence switch constant voltage power supply circuit does not adopt any chip control, and the interference killing feature is strong, and stability is high, and circuit structure is simple in addition, and is with low costs, small, especially adapted using widely.
Description
Technical field
The utility model relates to a kind of power circuit, specifically a kind of intelligent switch voltage-stabilized power supply circuit.
Background technology
Along with popularizing of present electric equipment, bring revolutionary change to industrial and agricultural production, Defence business, science and technology, accelerate the development of society, people have stepped into Electrification Age, also make the quality of life of people obtain significantly to improve, also more and more be unable to do without these electric equipments.Stabilized voltage power supply is as the requisite part of electric equipment, and the voltage stabilizing chip that uses controls more now in the industry, but adopts chip controls to there is the problem that antijamming capability is strong, volume is large, cost is high.
Utility model content
The purpose of this utility model is to provide a kind of volume little intelligent switch voltage-stabilized power supply circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of intelligent switch voltage-stabilized power supply circuit, comprises rectifier bridge Q, electric capacity C1, resistance R1, double base diode VT1, triode VT2 and transformer T, described rectifier bridge Q pin 1 is connected 220V alternating current two ends respectively with rectifier bridge Q pin 3, and rectifier bridge Q pin 2 is contact resistance R1 respectively, resistance R6, electric capacity C7 and transformer T primary coil, the resistance R1 other end is contact resistance R2 respectively, potentiometer RP, potentiometer RP slide plate, electric capacity C2 and resistance R4, the resistance R4 other end connects double base diode VT1 first base stage, double base diode VT1 emitter connects electric capacity C3 and resistance R3 respectively, the resistance R3 other end connects the potentiometer RP other end, double base diode VT1 second base stage is contact resistance R5 and electric capacity C4 respectively, electric capacity C4 other end connecting triode VT2 base stage, triode VT2 collector electrode is the contact resistance R6 other end respectively, the electric capacity C7 other end, triode VT3 collector electrode and triode VT4 base stage, the triode VT4 collector electrode connection transformer T primary coil other end, triode VT4 emitter is connecting triode VT3 base stage respectively, resistance R7 and electric capacity C5, described rectifier bridge Q pin 4 connects the electric capacity C1 other end respectively, the resistance R2 other end, the electric capacity C2 other end, the electric capacity C3 other end, the resistance R5 other end, triode VT2 emitter, triode VT3 emitter, the resistance R7 other end and the electric capacity C5 other end, described transformer T secondary coil one end connects electric capacity C6 and output end vo one end respectively, the transformer T secondary coil other end connects diode VD5 positive pole, and diode VD5 negative pole connects the electric capacity C6 other end and the output end vo other end respectively.
As the utility model further scheme: described double base diode VT1 adopts BT33.
Compared with prior art, the beneficial effects of the utility model are: the utility model intelligent switch voltage-stabilized power supply circuit does not adopt any chip controls, and antijamming capability is strong, stability is high, and circuit structure is simple in addition, and cost is low, volume is little, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of intelligent switch voltage-stabilized power supply circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of intelligent switch voltage-stabilized power supply circuit, comprises rectifier bridge Q, electric capacity C1, resistance R1, double base diode VT1, triode VT2 and transformer T, rectifier bridge Q pin 1 is connected 220V alternating current two ends respectively with rectifier bridge Q pin 3, and rectifier bridge Q pin 2 is contact resistance R1 respectively, resistance R6, electric capacity C7 and transformer T primary coil, the resistance R1 other end is contact resistance R2 respectively, potentiometer RP, potentiometer RP slide plate, electric capacity C2 and resistance R4, the resistance R4 other end connects double base diode VT1 first base stage, double base diode VT1 emitter connects electric capacity C3 and resistance R3 respectively, the resistance R3 other end connects the potentiometer RP other end, double base diode VT1 second base stage is contact resistance R5 and electric capacity C4 respectively, electric capacity C4 other end connecting triode VT2 base stage, triode VT2 collector electrode is the contact resistance R6 other end respectively, the electric capacity C7 other end, triode VT3 collector electrode and triode VT4 base stage, the triode VT4 collector electrode connection transformer T primary coil other end, triode VT4 emitter is connecting triode VT3 base stage respectively, resistance R7 and electric capacity C5, rectifier bridge Q pin 4 connects the electric capacity C1 other end respectively, the resistance R2 other end, the electric capacity C2 other end, the electric capacity C3 other end, the resistance R5 other end, triode VT2 emitter, triode VT3 emitter, the resistance R7 other end and the electric capacity C5 other end, transformer T secondary coil one end connects electric capacity C6 and output end vo one end respectively, the transformer T secondary coil T other end connects diode VD5 positive pole, and diode VD5 negative pole connects the electric capacity C6 other end and the output end vo other end respectively.
Double base diode VT1 adopts BT33.
Operation principle of the present utility model is: please participate in Fig. 1, and VT1 is switching tube; VT2, VT3 are for promoting pipe; VT4 is emitter follower, the astatic multivibrator that oscillating circuit is made up of VT1, VT6, C2, C3, R3, R4 etc., and VT2, VT3 form emitter-base bandgap grading coupled differential amplifier and amplify use as error.VT2 is decided to the size of C3 charging current from the flip-flop transition by the end of conducting by VT1, larger by the electric current of VT1, then the deadline of VT2 is longer, and in like manner, VT3 is decided to C5 charging current from the flip-flop transition by the end of conducting by VT4.The electric current of VT4 is larger, VT3 is shorter for deadline, when output end vo voltage declines because of certain reason, the VT2 pipe collector electric current of differential amplifier reduces, and the collector current of VT3 pipe increases, the ON time of VT4 is shortened, deadline lengthens, and cause the ON time of VT4 elongated, deadline shortens, output end vo voltage is gone up, maintains the stable of output end vo voltage.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. an intelligent switch voltage-stabilized power supply circuit, comprises rectifier bridge Q, electric capacity C1, resistance R1, double base diode VT1, triode VT2 and transformer T, is characterized in that, described rectifier bridge Q pin 1 is connected 220V alternating current two ends respectively with rectifier bridge Q pin 3, and rectifier bridge Q pin 2 is contact resistance R1 respectively, resistance R6, electric capacity C7 and transformer T primary coil, the resistance R1 other end is contact resistance R2 respectively, potentiometer RP, potentiometer RP slide plate, electric capacity C2 and resistance R4, the resistance R4 other end connects double base diode VT1 first base stage, double base diode VT1 emitter connects electric capacity C3 and resistance R3 respectively, the resistance R3 other end connects the potentiometer RP other end, double base diode VT1 second base stage is contact resistance R5 and electric capacity C4 respectively, electric capacity C4 other end connecting triode VT2 base stage, triode VT2 collector electrode is the contact resistance R6 other end respectively, the electric capacity C7 other end, triode VT3 collector electrode and triode VT4 base stage, the triode VT4 collector electrode connection transformer T primary coil other end, triode VT4 emitter is connecting triode VT3 base stage respectively, resistance R7 and electric capacity C5, described rectifier bridge Q pin 4 connects the electric capacity C1 other end respectively, the resistance R2 other end, the electric capacity C2 other end, the electric capacity C3 other end, the resistance R5 other end, triode VT2 emitter, triode VT3 emitter, the resistance R7 other end and the electric capacity C5 other end, described transformer T secondary coil one end connects electric capacity C6 and output end vo one end respectively, the transformer T secondary coil other end connects diode VD5 positive pole, and diode VD5 negative pole connects the electric capacity C6 other end and the output end vo other end respectively.
2. a kind of intelligent switch voltage-stabilized power supply circuit according to claim 1, is characterized in that, described double base diode VT1 adopts BT33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588849.5U CN204835933U (en) | 2015-08-06 | 2015-08-06 | Intelligence switch constant voltage power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588849.5U CN204835933U (en) | 2015-08-06 | 2015-08-06 | Intelligence switch constant voltage power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204835933U true CN204835933U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588849.5U Expired - Fee Related CN204835933U (en) | 2015-08-06 | 2015-08-06 | Intelligence switch constant voltage power supply circuit |
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| CN (1) | CN204835933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121247A (en) * | 2018-08-22 | 2019-01-01 | 无锡照明股份有限公司 | A kind of wisdom Street lamps control management system |
-
2015
- 2015-08-06 CN CN201520588849.5U patent/CN204835933U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121247A (en) * | 2018-08-22 | 2019-01-01 | 无锡照明股份有限公司 | A kind of wisdom Street lamps control management system |
| CN109121247B (en) * | 2018-08-22 | 2020-12-22 | 无锡照明股份有限公司 | Wisdom street lamp control management system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160815 Address after: 342500 Ruijin City, Jiangxi Province, Taiwan entrepreneurs Park Patentee after: Jiangxi Mingwei Electronics Co., Ltd. Address before: 100176 Beijing City, Daxing District Beijing economic and Technological Development Zone Ronghua Road No. 5 Building No. 1 hospital 10 layer 1014 Patentee before: BEIJING KEHUITONG WISDOM TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20170806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |