CN205453497U - Convenient and practical's constant voltage power supply circuit - Google Patents
Convenient and practical's constant voltage power supply circuit Download PDFInfo
- Publication number
- CN205453497U CN205453497U CN201620048852.2U CN201620048852U CN205453497U CN 205453497 U CN205453497 U CN 205453497U CN 201620048852 U CN201620048852 U CN 201620048852U CN 205453497 U CN205453497 U CN 205453497U
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- resistance
- audion
- connects
- potentiometer
- power supply
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Abstract
The utility model discloses a convenient and practical's constant voltage power supply circuit, including resistance R7, potentiometre RP1, unidirectional thyristor Q1 and lamps and lanterns H, potentiometre RP1's a stiff end, potentiometre RP1's slip end and power VCC are connected to resistance R7's one end, resistance R7's other end connecting resistance R4, resistance R5, resistance R6, key switch K, electric capacity C1, potentiometre RP2's a stiff end, unidirectional thyristor Q1's positive pole, output voltage U1, triode V1's base and output voltage U1, the utility model discloses convenient and practical's constant voltage power supply circuit simple structure, components and parts are few, can distinguish regulated output voltage and output current, and have dual overflow with short -circuit protection's function, better for traditional protection circuit protection effect, consequently have the wide advantage of stable performance, convenient to use and application scope.
Description
Technical field
This utility model relates to a kind of power circuit, a kind of convenient and practical voltage-stabilized power supply circuit.
Background technology
Along with improving constantly of people's living standard, electronic equipment has become as a requisite part in life, the most various household electrical appliance are to the life of people, work brings great convenience, this kind of electronic installation has been desirable that a precision is higher, the voltage stabilizing adjustable DC power supply that electric current is bigger, the constant voltage dc source of existing market is of a great variety, its mid and low-end products are the most, although low-end product has the advantage of price relative to high-end product, but quality is the most as one wishes, although and high-end product reliable in quality, safety and stability, but price is high also allows people hang back, all there is function singleness in common regulated power supply, life-span is short, the defects such as debugging maintenance difficult, therefore need to be improved.
Utility model content
The purpose of this utility model is to provide the convenient and practical voltage-stabilized power supply circuit of a kind of simple in construction, stable performance, with the problem solving to propose in above-mentioned background technology.
nullFor achieving the above object，This utility model following technical scheme of offer: a kind of convenient and practical voltage-stabilized power supply circuit，Including resistance R7、Potentiometer RP1、Unidirectional thyristor Q1 and light fixture H，One end of described resistance R7 connects a fixing end of potentiometer RP1、The sliding end of potentiometer RP1 and power supply VCC，The other end of resistance R7 connects resistance R4、Resistance R5、Resistance R6、Key switch K、Electric capacity C1、The fixing end of of potentiometer RP2、The anode of unidirectional thyristor Q1、Output voltage U1、The base stage of audion V1 and output voltage U1，The emitter stage of another fixing end connecting triode V1 of potentiometer RP1，The colelctor electrode of audion V1 connects resistance R1 and the anode of diode D1，The other end of resistance R1 connects resistance R3、The emitter stage of audion V2、The colelctor electrode of audion V3、The colelctor electrode of audion V4、The colelctor electrode of audion V5 and light fixture H，The negative electrode of diode D1 connects the control pole of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects the other end of button K、Resistance R2、Another fixing end of potentiometer RP1、The anode of diode D2 and the other end of light fixture H，The base stage of the sliding end connecting triode V3 of potentiometer RP2，The other end of resistance R2 connects the other end and the base stage of audion V2 of resistance R3，The collector connection relay J of audion V2，The other end of relay J connects the other end of resistance R4，The emitter stage of audion V3 connects the other end and the base stage of audion V4 of resistance R5，The emitter stage of audion V4 connects the contact J-1 of relay J，The other end of the contact J-1 of relay J connects the other end and the base stage of audion V5 of resistance R6，The emitter stage of audion V5 connects the other end of electric capacity C1.
As preferred version of the present utility model: described relay J is normally opened contact relay.
Compared with prior art; the beneficial effects of the utility model are: the convenient and practical voltage-stabilized power supply circuit simple in construction of this utility model, components and parts are few; output voltage and output electric current can be regulated respectively; and there is the dual function crossing stream and short-circuit protection; for traditional protection circuit, protected effect is more preferable, therefore has stable performance, advantage easy to use and applied widely.
Accompanying drawing explanation
Fig. 1 is for convenience of the circuit diagram of practical voltage-stabilized power supply circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment; technical scheme in this utility model embodiment is clearly and completely described; obviously; described embodiment is only a part of embodiment of this utility model; rather than whole embodiments; based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，A kind of convenient and practical voltage-stabilized power supply circuit，Including resistance R7、Potentiometer RP1、Unidirectional thyristor Q1 and light fixture H，One end of described resistance R7 connects a fixing end of potentiometer RP1、The sliding end of potentiometer RP1 and power supply VCC，The other end of resistance R7 connects resistance R4、Resistance R5、Resistance R6、Key switch K、Electric capacity C1、The fixing end of of potentiometer RP2、The anode of unidirectional thyristor Q1、Output voltage U1、The base stage of audion V1 and output voltage U1，The emitter stage of another fixing end connecting triode V1 of potentiometer RP1，The colelctor electrode of audion V1 connects resistance R1 and the anode of diode D1，The other end of resistance R1 connects resistance R3、The emitter stage of audion V2、The colelctor electrode of audion V3、The colelctor electrode of audion V4、The colelctor electrode of audion V5 and light fixture H，The negative electrode of diode D1 connects the control pole of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects the other end of button K、Resistance R2、Another fixing end of potentiometer RP1、The anode of diode D2 and the other end of light fixture H，The base stage of the sliding end connecting triode V3 of potentiometer RP2，The other end of resistance R2 connects the other end and the base stage of audion V2 of resistance R3，The collector connection relay J of audion V2，The other end of relay J connects the other end of resistance R4，The emitter stage of audion V3 connects the other end and the base stage of audion V4 of resistance R5，The emitter stage of audion V4 connects the contact J-1 of relay J，The other end of the contact J-1 of relay J connects the other end and the base stage of audion V5 of resistance R6，The emitter stage of audion V5 connects the other end of electric capacity C1.
Relay J is normally opened contact relay.
Operation principle of the present utility model is: reference voltage power supply flows through the electric current of Zener diode D2 to be stablized by light fixture H; thus improve degree of stability; overload instruction is the most also used as by bulb; by adjusting potentiometer RP2; the output voltage of regulated power supply can be changed; and the output electric current loaded can be changed by regulator potentiometer RP1, circuit is also added into electronic protection circuit and electromagnetic protection circuit.
Electronic protection circuit is made up of audion V1 and unidirectional thyristor Q1 etc..When overload or short circuit, the pressure drop on detection resistance R7 increases, and audion V1 and unidirectional thyristor Q1 is toggled and turns on.The reference voltage power supply due to its short circuit, therefore audion V3, V4 cut-off, adjust pipe V5 base stage no-bias and end, reach the purpose of overcurrent protection.
After overload or short trouble eliminate, to power up to original state, only need to press reset button switch K, because after depresses button switch K, the short circuit of unidirectional thyristor Q1 anode-cathode, and control pole no-bias, therefore IGCT cut-off, introduce the electronic lock being made up of audion V1 in circuit, its objective is to reduce the output impedance of circuit.
Electromagnetic protection circuit is made up of audion V2 and relay J; when circuit has worked long hours in the case of maximum current value; if there is no electromagnetic protection; when load is slightly transshipped; although Electronic Protection action; but audion V5 is not completely switched off, big electric current continues through it, it is likely that burnt.
Having had electromagnetic protection, when load slightly overload or short circuit, it just can action rapidly.I.e. when unidirectional thyristor Q1 turns on, audion V2 base stage is added to the positive ends of Zener diode through resistance R2, and V2 turns on, relay J adhesive, and its normally opened contact J-1 closes, and the base stage adjusting pipe V5 is connected on positive ends, and V5 ends, and cuts off load circuit.Significantly more efficient protecting the circuit from is damaged.
Claims (2)
- null1. a convenient and practical voltage-stabilized power supply circuit，Including resistance R7、Potentiometer RP1、Unidirectional thyristor Q1 and light fixture H，It is characterized in that，One end of described resistance R7 connects a fixing end of potentiometer RP1、The sliding end of potentiometer RP1 and power supply VCC，The other end of resistance R7 connects resistance R4、Resistance R5、Resistance R6、Key switch K、Electric capacity C1、The fixing end of of potentiometer RP2、The anode of unidirectional thyristor Q1、Output voltage U1、The base stage of audion V1 and output voltage U1，The emitter stage of another fixing end connecting triode V1 of potentiometer RP1，The colelctor electrode of audion V1 connects resistance R1 and the anode of diode D1，The other end of resistance R1 connects resistance R3、The emitter stage of audion V2、The colelctor electrode of audion V3、The colelctor electrode of audion V4、The colelctor electrode of audion V5 and light fixture H，The negative electrode of diode D1 connects the control pole of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects the other end of button K、Resistance R2、Another fixing end of potentiometer RP1、The anode of diode D2 and the other end of light fixture H，The base stage of the sliding end connecting triode V3 of potentiometer RP2，The other end of resistance R2 connects the other end and the base stage of audion V2 of resistance R3，The collector connection relay J of audion V2，The other end of relay J connects the other end of resistance R4，The emitter stage of audion V3 connects the other end and the base stage of audion V4 of resistance R5，The emitter stage of audion V4 connects the contact J-1 of relay J，The other end of the contact J-1 of relay J connects the other end and the base stage of audion V5 of resistance R6，The emitter stage of audion V5 connects the other end of electric capacity C1.
- Convenient and practical voltage-stabilized power supply circuit the most according to claim 1, it is characterised in that described relay J is normally opened contact relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048852.2U CN205453497U (en) | 2016-01-19 | 2016-01-19 | Convenient and practical's constant voltage power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620048852.2U CN205453497U (en) | 2016-01-19 | 2016-01-19 | Convenient and practical's constant voltage power supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205453497U true CN205453497U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620048852.2U Expired - Fee Related CN205453497U (en) | 2016-01-19 | 2016-01-19 | Convenient and practical's constant voltage power supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205453497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107969047A (en) * | 2017-12-22 | 2018-04-27 | 深圳市晟腾企业管理有限公司 | A kind of outdoor construction energy-saving lighting power supply |
| CN108199583A (en) * | 2018-01-03 | 2018-06-22 | 广州爱易学智能信息科技有限公司 | Library management system |
-
2016
- 2016-01-19 CN CN201620048852.2U patent/CN205453497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107969047A (en) * | 2017-12-22 | 2018-04-27 | 深圳市晟腾企业管理有限公司 | A kind of outdoor construction energy-saving lighting power supply |
| CN108199583A (en) * | 2018-01-03 | 2018-06-22 | 广州爱易学智能信息科技有限公司 | Library management system |
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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: 20160810 Termination date: 20170119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |