CN110890839A - Voltage regulating circuit based on silicon controlled rectifier - Google Patents
Voltage regulating circuit based on silicon controlled rectifier Download PDFInfo
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- CN110890839A CN110890839A CN201811058347.6A CN201811058347A CN110890839A CN 110890839 A CN110890839 A CN 110890839A CN 201811058347 A CN201811058347 A CN 201811058347A CN 110890839 A CN110890839 A CN 110890839A
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- resistor
- controlled rectifier
- silicon controlled
- transistor
- triode
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 18
- 239000010703 silicon Substances 0.000 title claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 10
- 230000033228 biological regulation Effects 0.000 claims description 10
- 230000010287 polarization Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a voltage regulating circuit based on a silicon controlled rectifier, which comprises a resistor R1, a diode D1, a one-way silicon controlled rectifier VT1, a triode VT2, a triode VT3 and a triode VT4, wherein the other end of the resistor R1 is respectively connected with a resistor R8 and a grounding resistor R2, the other end of the resistor R8 is connected with a G pole of the one-way silicon controlled rectifier VT1, a K pole of the one-way silicon controlled rectifier VT1 is respectively connected with the negative pole of a grounding diode D1 and the other end of a resistor R3, an A pole of the one-way silicon controlled rectifier VT1 is respectively connected with the other end of a resistor R7, a resistor R4 and a resistor R5, the other end of the resistor R4 is respectively connected with an emitter of the triode VT3, a base of the triode VT4 and a resistor. The invention provides a voltage regulating circuit based on silicon controlled rectifier, which can independently output different voltages from two different output ends according to different input voltage values.
Description
Technical Field
The invention relates to a voltage regulating circuit, in particular to a voltage regulating circuit based on silicon controlled rectifier.
Background
The switching power supply is a power supply which utilizes the modern power electronic technology to control the on-off time ratio of a switching tube and maintain stable output voltage, generally comprises a pulse width modulation control singlechip and an MOSFET, and the switching power supply technology is continuously innovated along with the development and innovation of the power electronic technology. At present, a switching power supply is widely applied to almost all electronic equipment with the characteristics of small size, light weight and high efficiency, and is an indispensable power supply mode for the rapid development of the current electronic information industry.
Disclosure of Invention
The present invention is directed to a voltage regulator circuit based on silicon controlled rectifier to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a voltage regulating circuit based on controllable silicon comprises a resistor R1, a diode D1, a unidirectional controllable silicon VT1 and a triode VT2, the other end of the resistor R1 is respectively connected with a resistor R8 and a grounding resistor R2, the other end of the resistor R8 is connected with a G pole of a one-way thyristor VT1, a K pole of the one-way thyristor VT1 is respectively connected with a negative pole of a grounding diode D1 and the other end of the resistor R3, an A pole of the one-way thyristor VT1 is respectively connected with the other end of a resistor R7, a resistor R4 and a resistor R4, the other end of the resistor R4 is respectively connected with an emitter of the triode VT4, a base of the triode VT4 and a resistor R4, the other end of the resistor R4 is respectively connected with an emitter of the triode VT4 and the negative pole of the grounding diode D4, a base of the triode VT4 is connected with the other end of the resistor R4, a collector of the triode VT4 is connected with the base of the triode.
As a further scheme of the invention: the diode D1 and the diode D2 are both zener diodes.
As a further scheme of the invention: the voltage of the power supply Vi is 14V or 18V.
As a still further scheme of the invention: the unidirectional thyristor VT1 is TL 431.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a voltage regulating circuit based on silicon controlled rectifier, which can independently output different voltages from two different output ends according to different input voltage values, has wide application range and has great market application prospect.
Drawings
Fig. 1 is a circuit diagram of a thyristor-based voltage regulation circuit.
Fig. 2 is a circuit diagram of a second embodiment of a thyristor-based voltage regulation circuit.
Fig. 3 is a pin diagram of a unidirectional thyristor in a thyristor-based voltage regulation circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1, in the present embodiment, a voltage regulation circuit based on a thyristor includes a resistor R1, a diode D1, a unidirectional thyristor VT1, a transistor VT2, a transistor VT3, and a transistor VT4, wherein the other end of the resistor R1 is connected to a resistor R1 and a ground resistor R1 respectively, the other end of the resistor R1 is connected to a G electrode of the unidirectional thyristor VT1, a K electrode of the unidirectional thyristor VT1 is connected to a negative electrode of the ground diode D1 and the other end of the resistor R1 respectively, an a electrode of the unidirectional thyristor VT1 is connected to the other end of the resistor R1, a resistor R1 and a resistor R1, the other end of the resistor R1 is connected to an emitter of the transistor VT1, a base of the transistor VT1 and the resistor R1, the base of the transistor VT1 is connected to the other end of the transistor VT1, a collector of the transistor VT1 is connected to a base of the transistor VT1, and a collector of the transistor VT 36, the collector of the triode VT4 is connected with the output end V2; the diode D1 and the diode D2 are both zener diodes. The unidirectional thyristor VT1 is TL 431.
Referring to fig. 1, the present invention can output different voltages from V1 and V2 according to the difference in voltage of the power Vi.
When a 14V power supply Vi is applied to the circuit, the average voltage of R1 and R2 is divided, the G pole voltage of VT1 is about 7V, the K pole of VT1 is stabilized at 7.5V by D1, so VT1 is cut off, the A pole of VT1 is at high level 14V, the A pole is added to the base of VT4 through R4, VT4 is cut off, the horizontal polarization tuner is not powered and does not work, meanwhile, the A pole 14V high level of VT1 is added to the base of VT2 through R5, the emitter of VT2 is stabilized at about 9.1V by D2, so VT2 is turned on, the collector of VT2 and the base of VT3 become low level, VT3 is turned on, and voltage is output from V1 through VT 3.
When a 18V power supply Vi is added to the circuit, the G pole of VT1 is changed to about 9V after average voltage division by R1 and R2, the emitter is still 7.5V, then VT1 is turned on, the A pole of VT1 is changed to about 7.5V, the low level is added to the base of VT2 by R5, the emitter is still 9.1V, so VT2 is cut off, VT3 is cut off, the vertical polarization tuner is powered off and stops working, meanwhile, the low level of 7.5V of the A pole of VT1 is added to the base of VT4 by R4, VT4 is turned on, and voltage is output from V2.
Example 2: referring to fig. 2, embodiment 2 of the present invention includes a resistor R1, a diode D1, a transistor VT1, and a transistor VT1, where another end of the resistor R1 is respectively connected to the resistor R1 and the ground resistor R1, another end of the resistor R1 is connected to a base of the transistor VT1, an emitter of the transistor VT1 is respectively connected to a negative electrode of the ground diode D1 and another end of the resistor R1, a collector of the transistor VT1 is respectively connected to another end of the resistor R1, the resistor R1 and a resistor R1, another end of the resistor R1 is respectively connected to a cathode of the transistor VT1 and a cathode of the ground diode D1, a base of the transistor VT1 is connected to another end of the resistor R1, a collector of the transistor VT1 is connected to a base of the transistor VT1, a collector of the transistor VT1 is connected to an output terminal V1, and a collector of the; the diode D1 and the diode D2 are both zener diodes.
The invention can output different voltages from V1 and V2 according to the voltage difference of the power supply Vi.
When a 14V power supply Vi is applied to the circuit, the average voltage division of R1 and R2 causes the VT1 base voltage to be about 7V, the VT1 emitter is stabilized at 7.5V by D1, so VT1 is cut off, the VT1 collector is at high level about 14V, the VT4 is added to the VT4 base, VT4 is cut off, the horizontal polarization tuner is not powered and operated, meanwhile, the VT1 collector 14V high level is added to the VT2 base by R5, the VT2 emitter is stabilized at about 9.1V by D2, so VT2 is turned on, the VT2 collector and the VT3 base become low level, the VT3 is turned on, and the voltage is output from V1 by VT 3.
When 18V power Vi is applied to the circuit, the VT1 base is changed to about 9V after average voltage division by R1 and R2, the emitter is still 7.5V, then VT1 is turned on, VT1 collector is changed to about 7.5V low level, and is applied to VT2 base by R5, and its emitter is still 9.1V, so VT2 is cut off, VT3 is cut off, the vertical polarization tuner is cut off, at the same time, the 7.5V low level of VT1 collector is applied to VT4 base by R4, VT4 is turned on, and voltage is output from V2
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A voltage regulating circuit based on silicon controlled rectifier comprises a resistor R1, a diode D1, a unidirectional silicon controlled rectifier VT1, a triode VT2, a triode VT3 and a triode VT4, wherein one end of the resistor R1 is respectively connected with a power supply Vi, a resistor R3, a resistor R7 and an emitter of the triode VT4, the voltage regulating circuit is characterized in that the other end of the resistor R1 is respectively connected with a resistor R8 and a grounding resistor R2, the other end of the resistor R8 is connected with a G pole of the unidirectional silicon controlled rectifier VT1, a K pole of the unidirectional silicon controlled rectifier VT1 is respectively connected with a negative pole of a grounding diode D1 and the other end of the resistor R3, an A pole of the unidirectional silicon controlled rectifier VT1 is respectively connected with the other end of a resistor R7, a resistor R4 and a resistor R5, and the other end of the resistor.
2. The thyristor-based voltage regulation circuit of claim 1, wherein the other end of the resistor R6 is connected to the emitter of a transistor VT2 and the negative electrode of a grounding diode D2, respectively, and the base of the transistor VT2 is connected to the other end of the resistor R5.
3. The thyristor-based voltage regulation circuit of claim 1, wherein the collector of the transistor VT2 is connected to the base of the transistor VT3, the collector of the transistor VT3 is connected to the output terminal V1, and the collector of the transistor VT4 is connected to the output terminal V2.
4. The thyristor-based voltage regulation circuit of claim 1, wherein the diode D1 is a zener diode.
5. The thyristor-based voltage regulation circuit of claim 1, wherein the diode D2 is a zener diode.
6. The thyristor-based voltage regulation circuit of claim 1, wherein the unidirectional thyristor VT1 is implemented as TL 431.
7. The thyristor-based voltage regulation circuit of claim 1, wherein the supply Vi voltage is 14V or 18V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811058347.6A CN110890839B (en) | 2018-09-11 | 2018-09-11 | Voltage regulating circuit based on silicon controlled rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811058347.6A CN110890839B (en) | 2018-09-11 | 2018-09-11 | Voltage regulating circuit based on silicon controlled rectifier |
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| Publication Number | Publication Date |
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| CN110890839A true CN110890839A (en) | 2020-03-17 |
| CN110890839B CN110890839B (en) | 2023-12-26 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539631A (en) * | 1994-06-16 | 1996-07-23 | Ion Systems Incorporated | Converter circuits using a silicon controlled rectifier |
| US20100321000A1 (en) * | 2009-06-19 | 2010-12-23 | Samsung Electro-Mechanics Co., Ltd. | Ac detection circuit for power supply |
| CN205336602U (en) * | 2016-01-31 | 2016-06-22 | 吴明秋 | But many LED lamp dimmer circuit |
| CN206283249U (en) * | 2016-12-30 | 2017-06-27 | 国网浙江省电力公司电力科学研究院 | A kind of current-limiting circuit and the electric energy meter comprising the current-limiting circuit |
-
2018
- 2018-09-11 CN CN201811058347.6A patent/CN110890839B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5539631A (en) * | 1994-06-16 | 1996-07-23 | Ion Systems Incorporated | Converter circuits using a silicon controlled rectifier |
| US20100321000A1 (en) * | 2009-06-19 | 2010-12-23 | Samsung Electro-Mechanics Co., Ltd. | Ac detection circuit for power supply |
| CN205336602U (en) * | 2016-01-31 | 2016-06-22 | 吴明秋 | But many LED lamp dimmer circuit |
| CN206283249U (en) * | 2016-12-30 | 2017-06-27 | 国网浙江省电力公司电力科学研究院 | A kind of current-limiting circuit and the electric energy meter comprising the current-limiting circuit |
Non-Patent Citations (2)
| Title |
|---|
| 彭春文;袁克峰;蒋伯华;董清波;张建;胡竞;: "基于TL431的线性精密稳压电源的设计和应用", 电子世界, no. 19 * |
| 程银珠: "一种宽输入范围的开关式稳压电源", 连云港职业技术学院学报, vol. 6, no. 03, pages 39 * |
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| CN110890839B (en) | 2023-12-26 |
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