CN204761325U - Automatic pressure regulating type power supply circuit - Google Patents
Automatic pressure regulating type power supply circuit Download PDFInfo
- Publication number
- CN204761325U CN204761325U CN201520473374.5U CN201520473374U CN204761325U CN 204761325 U CN204761325 U CN 204761325U CN 201520473374 U CN201520473374 U CN 201520473374U CN 204761325 U CN204761325 U CN 204761325U
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- diode
- triode
- resistance
- transformer
- winding
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Abstract
The utility model discloses an automatic pressure regulating type power supply circuit, including switch S1, relay J, triode V1 and transformer W, line voltage U1, switch S1's other end connection transformer W's winding N1, transformer W's winding N2, relay J's contact J -1's motionless end 3 and diode D2's positive pole, transformer W's winding N2's the other end connected load A and line voltage U1's the other end are connected to switch S1's one end. The utility model discloses automatic pressure regulating type power supply circuit can automatic switch -over transformer winding when the electric wire netting is under -voltage to reach the purpose of firm output, the undulant spike voltage who produces of commercial power can effectively be eliminated to the circuit simultaneously, has reduced the malfunction and the loss of circuit, consequently has simple structure, stable performance, convenient to use's advantage.
Description
Technical field
The utility model relates to a kind of power circuit, specifically a kind of automatic voltage regulating type power circuit.
Background technology
Along with the development of science and technology and the rise of mobile terminal, electric energy has become one of most important energy in people's life, and electronic installation is seen everywhere, and many electronic installations all require a power circuit.The power type of existing market is various; its mid and low-end products are especially many; although the relative high-end product of low-end product has the advantage of price; but quality is often as one wishes not to the utmost; major part power supply only has simple disconnection protective effect, function singleness, and easily because the peak voltage in electrical network produces erroneous judgement; not only affect normal productive life, and accelerate the loss of circuit.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, the automatic voltage regulating type power circuit of stable performance, 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 automatic voltage regulating type power circuit, comprises switch S 1, relay J, triode V1 and transformer W, one end of described switch S 1 connects line voltage U1, the winding N1 of the other end connection transformer W of switch S 1, the winding N2 of transformer W, the not moved end 3 of the contact J-1 of relay J and the anode of diode D2, the other end of the winding N2 of transformer W connects the other end of load A and line voltage U1, the other end of load A connects the moved end 1 of the contact J-1 of relay J, the other end of the winding N1 of the not moved end 2 connection transformer W of the contact J-1 of relay J, one end of the winding N3 of transformer W connects the anode of diode D1 and the negative electrode contact resistance R1 of transient voltage diode DW, diode D1, the collector electrode of electric capacity C1 and triode V1, the emitter of triode V1 connects electric capacity C2, resistance R3, resistance R4, the emitter of resistance R8 and triode V4, the other end of transient voltage diode DW connects the other end of electric capacity C1, the other end of electric capacity C2, electric capacity C3, resistance R6, a stiff end of potentiometer RP1, the anode of diode D3, the anode of diode D4, the negative electrode of diode D5, the negative electrode of diode D6, the other end of the winding N3 of relay J and transformer W, the other end of resistance R1 connects the negative electrode of diode D3 and the base stage of triode V1, the base stage of the other end connecting triode V2 of electric capacity C3, the negative electrode of diode D2, another stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end of collector electrode contact resistance R3 of triode V2 and the base stage of triode V3, the other end of emitter contact resistance R6 of triode V2 and the emitter of triode V3, the other end of the collector electrode contact resistance R4 of triode V3 and resistance R5, the base stage of the other end connecting triode V4 of resistance R5, the collector electrode contact resistance R7 of triode V4, the negative electrode of diode D4 and the other end of relay J, the other end of resistance R8 connects the anode of diode D6, and the other end of resistance R7 connects the anode of diode D5.
As preferred version of the present utility model: described diode D5 and diode D6 is light-emitting diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model automatic voltage regulating type power circuit can automatically switch when grid undervoltage Transformer Winding, thus reach the stable object exported, circuit effectively can eliminate the peak voltage that city's electro-mechanical wave produces simultaneously, decrease misoperation and the loss of circuit, therefore have that structure is simple, stable performance, advantage easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of automatic voltage regulating type power 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, a kind of automatic voltage regulating type power circuit, comprises switch S 1, relay J, triode V1 and transformer W, one end of described switch S 1 connects line voltage U1, the winding N1 of the other end connection transformer W of switch S 1, the winding N2 of transformer W, the not moved end 3 of the contact J-1 of relay J and the anode of diode D2, the other end of the winding N2 of transformer W connects the other end of load A and line voltage U1, the other end of load A connects the moved end 1 of the contact J-1 of relay J, the other end of the winding N1 of the not moved end 2 connection transformer W of the contact J-1 of relay J, one end of the winding N3 of transformer W connects the anode of diode D1 and the negative electrode contact resistance R1 of transient voltage diode DW, diode D1, the collector electrode of electric capacity C1 and triode V1, the emitter of triode V1 connects electric capacity C2, resistance R3, resistance R4, the emitter of resistance R8 and triode V4, the other end of transient voltage diode DW connects the other end of electric capacity C1, the other end of electric capacity C2, electric capacity C3, resistance R6, a stiff end of potentiometer RP1, the anode of diode D3, the anode of diode D4, the negative electrode of diode D5, the negative electrode of diode D6, the other end of the winding N3 of relay J and transformer W, the other end of resistance R1 connects the negative electrode of diode D3 and the base stage of triode V1, the base stage of the other end connecting triode V2 of electric capacity C3, the negative electrode of diode D2, another stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end of collector electrode contact resistance R3 of triode V2 and the base stage of triode V3, the other end of emitter contact resistance R6 of triode V2 and the emitter of triode V3, the other end of the collector electrode contact resistance R4 of triode V3 and resistance R5, the base stage of the other end connecting triode V4 of resistance R5, the collector electrode contact resistance R7 of triode V4, the negative electrode of diode D4 and the other end of relay J, the other end of resistance R8 connects the anode of diode D6, and the other end of resistance R7 connects the anode of diode D5.
Diode D5 and diode D6 is light-emitting diode.
Operation principle of the present utility model is: during use, closed electrical source switch S1, defeated people's alternating voltage U1 is after W step-down, D1 halfwave rectifier, Cl filtering and VS and V4 voltage stabilizing adjustment, for V2-V4 and J provides operating voltage, light-emitting diode D6 is lighted simultaneously, as the normal pilot light of voltage, the peak voltage that transient voltage diode DW produces for eliminating city's electro-mechanical wave, reduce the probability of circuit erroneous action, be added in alternating voltage on the N2 winding of transformer T also after D2 rectification, C3 filtering and RP1 dividing potential drop, produce sampling voltage in the base stage of V2.When defeated people's alternating voltage U1 is 190-2OOV, V2 ends, V3 and V4 conducting, and J be energized adhesive, and 1,2 terminations of its contact J-1 are led to, and defeated people's alternating voltage is output after about 220V through NI, N2 windings in series boosting of transformer W; D5 lights simultaneously.When defeated people's alternating voltage is increased to 2lOV, V2 conducting, makes V3 and V4 end, and J discharges, and its contact J-1 connects 1,3 ends, and defeated people's alternating voltage directly exports without boosting; Light-emitting diode D5 extinguishes simultaneously.
Claims (2)
1. an automatic voltage regulating type power circuit, comprises switch S 1, relay J, triode V1 and transformer W, is characterized in that, one end of described switch S 1 connects line voltage U1, the winding N1 of the other end connection transformer W of switch S 1, the winding N2 of transformer W, the not moved end 3 of the contact J-1 of relay J and the anode of diode D2, the other end of the winding N2 of transformer W connects the other end of load A and line voltage U1, the other end of load A connects the moved end 1 of the contact J-1 of relay J, the other end of the winding N1 of the not moved end 2 connection transformer W of the contact J-1 of relay J, one end of the winding N3 of transformer W connects the anode of diode D1 and the negative electrode contact resistance R1 of transient voltage diode DW, diode D1, the collector electrode of electric capacity C1 and triode V1, the emitter of triode V1 connects electric capacity C2, resistance R3, resistance R4, the emitter of resistance R8 and triode V4, the other end of transient voltage diode DW connects the other end of electric capacity C1, the other end of electric capacity C2, electric capacity C3, resistance R6, a stiff end of potentiometer RP1, the anode of diode D3, the anode of diode D4, the negative electrode of diode D5, the negative electrode of diode D6, the other end of the winding N3 of relay J and transformer W, the other end of resistance R1 connects the negative electrode of diode D3 and the base stage of triode V1, the base stage of the other end connecting triode V2 of electric capacity C3, the negative electrode of diode D2, another stiff end of potentiometer RP1 and the sliding end of potentiometer RP1, the other end of collector electrode contact resistance R3 of triode V2 and the base stage of triode V3, the other end of emitter contact resistance R6 of triode V2 and the emitter of triode V3, the other end of the collector electrode contact resistance R4 of triode V3 and resistance R5, the base stage of the other end connecting triode V4 of resistance R5, the collector electrode contact resistance R7 of triode V4, the negative electrode of diode D4 and the other end of relay J, the other end of resistance R8 connects the anode of diode D6, and the other end of resistance R7 connects the anode of diode D5.
2. a kind of automatic voltage regulating type power circuit according to claim 1, is characterized in that, described diode D5 is light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473374.5U CN204761325U (en) | 2015-07-04 | 2015-07-04 | Automatic pressure regulating type power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520473374.5U CN204761325U (en) | 2015-07-04 | 2015-07-04 | Automatic pressure regulating type power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761325U true CN204761325U (en) | 2015-11-11 |
Family
ID=54475993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520473374.5U Expired - Fee Related CN204761325U (en) | 2015-07-04 | 2015-07-04 | Automatic pressure regulating type power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383529A (en) * | 2016-10-28 | 2017-02-08 | 桂林大创科技有限公司 | Household air humidity intelligent regulator |
-
2015
- 2015-07-04 CN CN201520473374.5U patent/CN204761325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383529A (en) * | 2016-10-28 | 2017-02-08 | 桂林大创科技有限公司 | Household air humidity intelligent regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |