CN206099781U - Automatic pressure regulating formula constant voltage power supply circuit - Google Patents
Automatic pressure regulating formula constant voltage power supply circuit Download PDFInfo
- Publication number
- CN206099781U CN206099781U CN201621079992.2U CN201621079992U CN206099781U CN 206099781 U CN206099781 U CN 206099781U CN 201621079992 U CN201621079992 U CN 201621079992U CN 206099781 U CN206099781 U CN 206099781U
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- triode
- relay
- resistance
- power supply
- supply circuit
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Abstract
The utility model discloses an automatic pressure regulating formula constant voltage power supply circuit, including resistance R2, relay K1, relay K2, polyphase transformer T and triode V2, relay K1's contact K1 1 move end connecting resistance R1 and 220V alternating current, potentiometre RP1 and triode V1's base is connected to resistance R1's the other end, the other end of potentiometre RP1's other end connection electric capacity C1, electric capacity C2, potentiometre RP2, relay K1, relay K2, polyphase transformer T's 1 foot, load P and 220V alternating current. The utility model discloses automatic pressure regulating formula constant voltage power supply circuit adopts the polyphase transformer to combine two sets of voltage testing and two relays to realize the regulation to the voltage of electric wire netting to effective regulated output voltage reaches and ensures that the load does not receive purpose under -voltage, that the excessive pressure is damaged.
Description
Technical field
The utility model is related to a kind of voltage-stabilized power supply, specifically a kind of automatic pressure-regulating type voltage-stabilized power supply circuit.
Background technology
With the continuous improvement of people's living standard, electronic equipment has become a requisite part in life, especially
It is various household electrical appliance give people life, work bring great convenience, this kind of electronic installation has required an essence
Higher, stable performance the power supply of degree.The power type of existing market is various, and its mid and low-end products is especially more, although low-end product
With respect to the advantage that high-end product has price, but quality often complies with one's wishes not to the utmost, common voltage-stabilized power supply exist single function,
The undesirable problem of protected effect, for example：Application number：201620124438.5 disclosed adjustable voltage-stabilized source, it can only
The power supply of disconnecting consumers when running into over-pressed or under-voltage, although the purpose of protection load can be reached, but again resulted in negative
Carry power-off, it is impossible to work, cannot thus be applicable to the electrical equipment of continuous work, therefore it is needed to be improved.
Utility model content
The purpose of this utility model is to provide a kind of simple structure, automatic pressure-regulating type voltage-stabilized power supply electricity easy to use
Road, to solve the problems, such as above-mentioned background technology in propose.
For achieving the above object, the utility model provides following technical scheme：
A kind of automatic pressure-regulating type voltage-stabilized power supply circuit, including resistance R2, relay K1, relay K2, polyphase transformer T and
The moved end connection resistance R1 and 220V alternating current of triode V2, the contact K1-1 of the relay K1, the other end of resistance R1 connects
Connect the base stage of potentiometer RP1 and triode V1, the other end connection electric capacity C1 of potentiometer RP1, electric capacity C2, potentiometer RP2, relay
Device K1, relay K2,1 pin of polyphase transformer T, the other end of load P and 220V alternating currents, the colelctor electrode connection of triode V1
Resistance R2 and resistance R3, resistance R2 the other end connection resistance R4, resistance R5, the emitter stage of triode V2, triode V4 send out
The negative electrode of emitter-base bandgap grading and diode D1, the base stage of the other end connecting triode V2 of resistance R3, the colelctor electrode connection electricity of triode V2
Hold the other end of C1 and the other end of relay K1, the anode of diode D1 connects the pin 2 of polyphase transformer T, polyphase transformer T
Pin 3 connection relay K1 contact K1-1 not moved end 2, the not moved end 1 of the contact K1-1 of relay K1 connects many phase-change pressures
Not moved end 1 of the pin 5 of device T and the contact K2-1 of relay K2, the pin 4 of polyphase transformer T connects the contact K2-1 of relay K2
Not moved end 2, resistance R4 the other end connection potentiometer RP2 the other end and triode V3 base stage, the current collection of triode V3
Pole connects resistance R5 and resistance R6, the base stage of the other end connecting triode V4 of resistance R6, the colelctor electrode connection electricity of triode V4
Hold the other end of C2 and the other end of relay K2.
As preferred version of the present utility model：The triode V1 and triode V3 are NPN type triode, triode
V2 and triode V4 are PNP type triode.
As preferred version of the present utility model：Model IN4001 of the diode D1.
Compared with prior art, the beneficial effects of the utility model are：The utility model automatic pressure-regulating type voltage-stabilized power supply electricity
Road realizes the regulation of the voltage to electrical network using polyphase transformer with reference to two groups of voltage detection modules and two relays, so as to
Effective regulated output voltage, reaching guarantees to load not by the purpose of under-voltage, over-pressed damage.
Description of the drawings
Fig. 1 is the circuit diagram of automatic pressure-regulating type voltage-stabilized power supply circuit.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1, a kind of automatic pressure-regulating type voltage-stabilized power supply circuit, including it is resistance R2, relay K1, relay K2, many
Phase transformer T and triode V2, the moved end connection resistance R1 and 220V alternating current of the contact K1-1 of the relay K1, resistance R1
The other end connect potentiometer RP1 and triode V1 base stage, potentiometer RP1 the other end connection electric capacity C1, electric capacity C2, current potential
Device RP2, relay K1, relay K2,1 pin of polyphase transformer T, the other end of load P and 220V alternating currents, triode V1's
Colelctor electrode connect resistance R2 and resistance R3, resistance R2 the other end connection resistance R4, resistance R5, the emitter stage of triode V2, three
The emitter stage of pole pipe V4 and the negative electrode of diode D1, the base stage of the other end connecting triode V2 of resistance R3, the collection of triode V2
The other end of electrode connection electric capacity C1 and the other end of relay K1, the anode of diode D1 connects the pin 2 of polyphase transformer T,
Not moved end 2 of the contact K1-1 of the connection relay K1 of pin 3 of polyphase transformer T, the not moved end 1 of the contact K1-1 of relay K1 connects
Meet not moved end 1 of the pin 5 of polyphase transformer T and the contact K2-1 of relay K2, the connection relay K2 of pin 4 of polyphase transformer T
Contact K2-1 not moved end 2, resistance R4 the other end connection potentiometer RP2 the other end and triode V3 base stage, three poles
The colelctor electrode connection resistance R5 and resistance R6 of pipe V3, the base stage of the other end connecting triode V4 of resistance R6, the collection of triode V4
The other end of electrode connection electric capacity C2 and the other end of relay K2.
Triode V1 and triode V3 are NPN type triode, and triode V2 and triode V4 are PNP type triode.
Model IN4001 of diode D1.
Operation principle of the present utility model is：220V line voltages access the 3rd pin for meeting transformer T after circuit first.
Resistance R1 and potentiometer RP1 constitutes one group of voltage detection module, VI, V2 composition control circuit, by adjusting RP1, thus it is possible to vary
Start to control a little.
When line voltage be less than 220V when, through voltage detection module undertension so that triode V1 conducting, now
V2 is also switched off, therefore K1 is failure to actuate, and the contact K1-1 of K1 connects not moved end 2, makes transformer T-shaped into opening pressure type.Output voltage is not
More than 220V, K2 contacts K2-1 connects not moved end 1, the as pin of transformer the 5th；If above 220V, K2 contacts K2-1 is connected not
Moved end 2, the as pin of transformer the 4th.
When line voltage is higher than 220V, be enough to turn on triode V1 through the voltage of voltage detection module, control K1
Adhesive, is connected to the pin of transformer the 5th, forms buck.As output end voltage exceedes setting value, then by the voltage of R4 controlling of sampling
So that V3 and V4 conductings, relay K2 adhesives, K2 contacts K2-1 connects not moved end 2, as the pin of transformer the 4th, reaches step-down
Purpose.
Claims (3)
1. a kind of automatic pressure-regulating type voltage-stabilized power supply circuit, including resistance R2, relay K1, relay K2, polyphase transformer T and three
Pole pipe V2, it is characterised in that the moved end connection resistance R1 and 220V alternating current of the contact K1-1 of the relay K1, resistance R1's
The other end connects the base stage of potentiometer RP1 and triode V1, the other end connection electric capacity C1 of potentiometer RP1, electric capacity C2, potentiometer
RP2, relay K1, relay K2,1 pin of polyphase transformer T, the other end of load P and 220V alternating currents, the collection of triode V1
Electrode connects resistance R2 and resistance R3, the other end connection resistance R4 of resistance R2, resistance R5, the emitter stage of triode V2, three poles
The emitter stage of pipe V4 and the negative electrode of diode D1, the base stage of the other end connecting triode V2 of resistance R3, the current collection of triode V2
The other end of pole connection electric capacity C1 and the other end of relay K1, the anode of diode D1 connects the pin 2 of polyphase transformer T, many
Not moved end 2 of the contact K1-1 of the connection relay K1 of pin 3 of phase transformer T, the not moved end 1 of the contact K1-1 of relay K1 connects
Not moved end 1 of the pin 5 of polyphase transformer T and the contact K2-1 of relay K2, the connection relay K2's of pin 4 of polyphase transformer T
Not moved end 2 of contact K2-1, the other end and the base stage of triode V3 of the other end connection potentiometer RP2 of resistance R4, triode
The colelctor electrode connection resistance R5 and resistance R6 of V3, the base stage of the other end connecting triode V4 of resistance R6, the current collection of triode V4
The other end of pole connection electric capacity C2 and the other end of relay K2.
2. a kind of automatic pressure-regulating type voltage-stabilized power supply circuit according to claim 1, it is characterised in that the triode V1 and
Triode V3 is NPN type triode, and triode V2 and triode V4 are PNP type triode.
3. a kind of automatic pressure-regulating type voltage-stabilized power supply circuit according to claim 1, it is characterised in that the diode D1's
Model IN4001.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079992.2U CN206099781U (en) | 2016-09-26 | 2016-09-26 | Automatic pressure regulating formula constant voltage power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079992.2U CN206099781U (en) | 2016-09-26 | 2016-09-26 | Automatic pressure regulating formula constant voltage power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099781U true CN206099781U (en) | 2017-04-12 |
Family
ID=58479751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079992.2U Expired - Fee Related CN206099781U (en) | 2016-09-26 | 2016-09-26 | Automatic pressure regulating formula constant voltage power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482906A (en) * | 2017-07-24 | 2017-12-15 | 邹彦双 | Air purifier over-and under-voltage protection circuit |
| CN109511024A (en) * | 2018-12-06 | 2019-03-22 | 广州荣锋电子科技有限公司 | Microphone |
-
2016
- 2016-09-26 CN CN201621079992.2U patent/CN206099781U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482906A (en) * | 2017-07-24 | 2017-12-15 | 邹彦双 | Air purifier over-and under-voltage protection circuit |
| CN107482906B (en) * | 2017-07-24 | 2018-12-28 | 宁夏锐盛明杰知识产权咨询有限公司 | Air purifier over-and under-voltage protects circuit |
| CN109511024A (en) * | 2018-12-06 | 2019-03-22 | 广州荣锋电子科技有限公司 | Microphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20170926 |