CN204719587U - A kind of stabilized voltage supply - Google Patents
A kind of stabilized voltage supply Download PDFInfo
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- CN204719587U CN204719587U CN201520435981.2U CN201520435981U CN204719587U CN 204719587 U CN204719587 U CN 204719587U CN 201520435981 U CN201520435981 U CN 201520435981U CN 204719587 U CN204719587 U CN 204719587U
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Abstract
The utility model discloses a kind of stabilized voltage supply, comprise transformer T, rectifier bridge Q1, diode D1, triode VT1, one-way SCR VR and metal-oxide-semiconductor VS, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end connects rectifier bridge Q1 pin 1 and electric capacity C2 respectively, the transformer T coil L2 other end connects diode D1 positive pole respectively and rectifier bridge Q1 pin 3, diode D1 negative pole connects ground connection diode D2 negative pole.The utility model stabilized voltage supply controls by using one-way SCR and metal-oxide-semiconductor to coordinate, power supply can be limited output current while voltage stabilizing, security is high, and not using any chip component, stability is high, adds peak voltage clamper that transformer T coil L2 can produce because of leakage inductance by diode D1 and diode D2 in addition to safety value, improve security, circuit structure is simple, and cost is low, is applicable to very much promoting the use of.
Description
Technical field
The utility model relates to a kind of power supply, specifically a kind of stabilized voltage supply.
Background technology
Along with the development of science and technology, how stabilized voltage supply, as the requisite ingredient of electric equipment, makes that the voltage regulation result of voltage stabilizing is good and volume is little, is the emphasis studied in the industry always, existing mu balanced circuit just controls the circuit of output terminal mostly in addition, does not but have good current limliting means.
Utility model content
The purpose of this utility model is to provide a kind of stabilized voltage supply with current-limiting protection, 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 stabilized voltage supply, comprises transformer T, rectifier bridge Q1, diode D1, triode VT1, one-way SCR VR and metal-oxide-semiconductor VS, described transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end connects rectifier bridge Q1 pin 1 and electric capacity C2 respectively, the transformer T coil L2 other end connects diode D1 positive pole and rectifier bridge Q1 pin 3 respectively, diode D1 negative pole connects ground connection diode D2 negative pole, and rectifier bridge Q1 pin 4 connects electric capacity C1 respectively, the A pole of one-way SCR VR, electric capacity C4, resistance R3 and electric capacity C5, the electric capacity C1 other end connects rectifier bridge Q1 pin 2 respectively, diode D6 positive pole, the D pole of electric capacity C3 and metal-oxide-semiconductor VS, diode D6 negative pole connects the electric capacity C2 other end and diode D5 positive pole respectively, and diode D5 negative pole connects the electric capacity C3 other end and resistance R1 respectively, and the resistance R1 other end connects the G pole of metal-oxide-semiconductor VS respectively, the K pole of one-way SCR VR and triode VT1 collector, triode VT1 base stage connects S pole and the resistance R2 of metal-oxide-semiconductor VS respectively, and the resistance R2 other end is connecting triode VT1 emitter respectively, potentiometer RW, the electric capacity C5 other end and output end vo, the potentiometer RW other end is the contact resistance R3 other end respectively, the G pole of the electric capacity C4 other end and one-way SCR VR.
As further program of the utility model: described diode D2 is voltage stabilizing diode.
As the utility model further scheme: described one-way SCR VR is TL431.
Compared with prior art, the beneficial effects of the utility model are: the utility model stabilized voltage supply controls by using one-way SCR and metal-oxide-semiconductor to coordinate, power supply can be limited output current while voltage stabilizing, security is high, and do not use any chip component, stability is high, add peak voltage clamper that transformer T coil L2 can produce because of leakage inductance by diode D1 and diode D2 in addition to safety value, improve security, circuit structure is simple, cost is low, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of stabilized voltage supply.
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 stabilized voltage supply, comprises transformer T, rectifier bridge Q1, diode D1, triode VT1, one-way SCR VR and metal-oxide-semiconductor VS, transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end connects rectifier bridge Q1 pin 1 and electric capacity C2 respectively, the transformer T coil L2 other end connects diode D1 positive pole and rectifier bridge Q1 pin 3 respectively, diode D1 negative pole connects ground connection diode D2 negative pole, and rectifier bridge Q1 pin 4 connects electric capacity C1 respectively, the A pole of one-way SCR VR, electric capacity C4, resistance R3 and electric capacity C5, the electric capacity C1 other end connects rectifier bridge Q1 pin 2 respectively, diode D6 positive pole, the D pole of electric capacity C3 and metal-oxide-semiconductor VS, diode D6 negative pole connects the electric capacity C2 other end and diode D5 positive pole respectively, and diode D5 negative pole connects the electric capacity C3 other end and resistance R1 respectively, and the resistance R1 other end connects the G pole of metal-oxide-semiconductor VS respectively, the K pole of one-way SCR VR and triode VT1 collector, triode VT1 base stage connects S pole and the resistance R2 of metal-oxide-semiconductor VS respectively, and the resistance R2 other end is connecting triode VT1 emitter respectively, potentiometer RW, the electric capacity C5 other end and output end vo, the potentiometer RW other end is the contact resistance R3 other end respectively, the G pole of the electric capacity C4 other end and one-way SCR VR.
Diode D2 is voltage stabilizing diode.
One-way SCR VR is TL431.
Principle of work of the present utility model is: 220V voltage is first through transformer T step-down, rectifier bridge Q1 rectification, electric capacity C1 filtering, in addition diode D5, diode D6, electric capacity C2, electric capacity C3 forms voltage-multiplying circuit, potentiometer RW, resistance R3 forms bleeder circuit, one-way SCR VR, resistance R1 forms sampling amplification circuit, triode VT1, resistance R2 forms current-limiting protection circuit, metal-oxide-semiconductor VS adjusts pipe and electric capacity C5 is output filter circuit etc., voltage stabilizing process is: when output end vo voltage reduces, f point current potential reduces, amplifying through one-way SCR VR inside makes e point voltage increase, after metal-oxide-semiconductor VS adjusts, b point current potential raises, otherwise when output end vo voltage increases, f point current potential raises, and e point current potential reduces, after metal-oxide-semiconductor VS adjusts, b point current potential reduces, thus makes output end vo voltage stabilization.Triode VT1 and resistance R2 forms current-limiting circuit, and when output current is greater than 6A, triode VT1 is in cut-off, within making output current be limited in 6A, thus reaches the object of current limliting.
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 instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a stabilized voltage supply, comprises transformer T, rectifier bridge Q1, diode D1, triode VT1, one-way SCR VR and metal-oxide-semiconductor VS, it is characterized in that, described transformer T coil L1 two ends connect 220V alternating current two ends respectively, transformer T coil L2 one end connects rectifier bridge Q1 pin 1 and electric capacity C2 respectively, the transformer T coil L2 other end connects diode D1 positive pole and rectifier bridge Q1 pin 3 respectively, diode D1 negative pole connects ground connection diode D2 negative pole, and rectifier bridge Q1 pin 4 connects electric capacity C1 respectively, the A pole of one-way SCR VR, electric capacity C4, resistance R3 and electric capacity C5, the electric capacity C1 other end connects rectifier bridge Q1 pin 2 respectively, diode D6 positive pole, the D pole of electric capacity C3 and metal-oxide-semiconductor VS, diode D6 negative pole connects the electric capacity C2 other end and diode D5 positive pole respectively, and diode D5 negative pole connects the electric capacity C3 other end and resistance R1 respectively, and the resistance R1 other end connects the G pole of metal-oxide-semiconductor VS respectively, the K pole of one-way SCR VR and triode VT1 collector, triode VT1 base stage connects S pole and the resistance R2 of metal-oxide-semiconductor VS respectively, and the resistance R2 other end is connecting triode VT1 emitter respectively, potentiometer RW, the electric capacity C5 other end and output end vo, the potentiometer RW other end is the contact resistance R3 other end respectively, the G pole of the electric capacity C4 other end and one-way SCR VR.
2. stabilized voltage supply according to claim 1, is characterized in that, described diode D2 is voltage stabilizing diode.
3. stabilized voltage supply according to claim 1, is characterized in that, described one-way SCR VR is TL431.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435981.2U CN204719587U (en) | 2015-06-24 | 2015-06-24 | A kind of stabilized voltage supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435981.2U CN204719587U (en) | 2015-06-24 | 2015-06-24 | A kind of stabilized voltage supply |
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| Publication Number | Publication Date |
|---|---|
| CN204719587U true CN204719587U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520435981.2U Expired - Fee Related CN204719587U (en) | 2015-06-24 | 2015-06-24 | A kind of stabilized voltage supply |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341039A (en) * | 2016-11-18 | 2017-01-18 | 广西大学 | Control system for electronic inverter |
| CN107203797A (en) * | 2017-06-16 | 2017-09-26 | 合肥讯邦网络科技有限公司 | A kind of Internet of Things intelligent communication control system |
| CN107757940A (en) * | 2017-10-31 | 2018-03-06 | 河南飞防兵科技有限公司 | A kind of UAV Intelligent image capturing system |
| CN110131458A (en) * | 2019-06-28 | 2019-08-16 | 郑州睿联智能科技有限公司 | A kind of valve controling circuit being adapted to multiple caliber |
| CN110890847A (en) * | 2018-09-11 | 2020-03-17 | 深圳市国王科技有限公司 | Energy-saving voltage stabilizing circuit |
-
2015
- 2015-06-24 CN CN201520435981.2U patent/CN204719587U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106341039A (en) * | 2016-11-18 | 2017-01-18 | 广西大学 | Control system for electronic inverter |
| CN107203797A (en) * | 2017-06-16 | 2017-09-26 | 合肥讯邦网络科技有限公司 | A kind of Internet of Things intelligent communication control system |
| CN107757940A (en) * | 2017-10-31 | 2018-03-06 | 河南飞防兵科技有限公司 | A kind of UAV Intelligent image capturing system |
| CN110890847A (en) * | 2018-09-11 | 2020-03-17 | 深圳市国王科技有限公司 | Energy-saving voltage stabilizing circuit |
| CN110890847B (en) * | 2018-09-11 | 2023-11-14 | 深圳市国王科技有限公司 | Energy-saving voltage stabilizing circuit |
| CN110131458A (en) * | 2019-06-28 | 2019-08-16 | 郑州睿联智能科技有限公司 | A kind of valve controling circuit being adapted to multiple caliber |
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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: 20151228 Address after: 510800 Guangdong city in Guangzhou Province, Xinhua Street, Tian Village economic cooperatives southeast Huadu District days Road No. 62 building room 708 Patentee after: Guangzhou Yingfan Electrical Technology Co., Ltd. Address before: The Western Zhou Dynasty in Xiangshan County in Zhejiang province 315700 Ningbo City Electrical Industrial Park Patentee before: Lv Yun |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |