CN103457461B - A kind of direct current regulation circuit - Google Patents
A kind of direct current regulation circuit Download PDFInfo
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- CN103457461B CN103457461B CN201310407694.6A CN201310407694A CN103457461B CN 103457461 B CN103457461 B CN 103457461B CN 201310407694 A CN201310407694 A CN 201310407694A CN 103457461 B CN103457461 B CN 103457461B
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- triode
- diode
- resistance
- direct current
- base stage
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Abstract
The invention discloses a kind of direct current regulation circuit, this circuit comprises triode, diode, resistance and electric capacity; The present invention utilizes the characteristic of diode and electric capacity to make output voltage stability high, fluctuate little, and temperature coefficient is little, and temperature stability is good, and noise is low, and circuit structure is simple, is applicable in the power supply of low-voltage.
Description
Technical field
The present invention relates to a kind of voltage stabilizing circuit, particularly a kind of direct current regulation circuit.
Background technology
In electronic system, ac grid voltage is often needed to be converted to galvanic current pressure, in order to ensure that output voltage does not produce fluctuation by the change of line voltage, load and temperature, usual employing access voltage stabilizing circuit, but voltage regulation result is poor, causes there is a large amount of fluctuation in output voltage, affect subsequent conditioning circuit to run, its general circuit is complicated, and power consumption is large, is not easy in small-power electric power system.
Therefore need a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
Goal of the invention: for above-mentioned prior art Problems existing and deficiency, the object of this invention is to provide a kind of direct current regulation circuit, its voltage stability is high, and noise is low.
Technical scheme: the technical solution used in the present invention is a kind of direct current regulation circuit, this circuit comprises triode, diode, resistance and electric capacity, the base stage of the first triode is connected with the negative pole of the 3rd diode by the first resistance, the positive pole access positive voltage of the 3rd diode, the collector electrode of the first triode is connected with the base stage of the 3rd triode by the 4th diode, the emitter of the first triode is connected with the emitter of the second triode, and all by the 3rd grounding through resistance, the collector electrode of the second triode is by the second resistance access positive voltage, its base stage passes through the series connection ground connection of the 5th resistance and the 6th resistance, one end of 4th resistance is connected with the base stage of the second triode, its other end is connected with the negative pole of the 4th diode, the grounded emitter of the 3rd triode.
Preferably, the base stage of the first triode is connected with the positive pole of the first diode, and the negative pole of the first diode is connected with the negative pole of the second diode, the plus earth of the second diode.
Preferably, the collector electrode of the first triode is connected with the positive pole of the 4th diode.
Preferably, the two ends of the first resistance are parallel with the first electric capacity.
Preferably, also comprise the 3rd electric capacity, one end of the 3rd electric capacity is connected with the base stage of the second triode, other end ground connection.
Beneficial effect: compared with prior art, its advantage is that the present invention utilizes the characteristic of diode and electric capacity to make output voltage stability high, fluctuates little in the present invention, and temperature coefficient is little, temperature stability is good, and noise is low, circuit structure is simple, is applicable in the power supply of low-voltage.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention includes triode, diode, resistance and electric capacity, the base stage of described first triode (Q1) is connected with the negative pole of the 3rd diode (D3) by the first resistance (R1), the base stage of the first triode (Q1) is connected with the positive pole of the first diode (D1), the negative pole of described first diode (D1) is connected with the negative pole of the second diode (D2), the plus earth of described second diode (D2), the positive pole access positive voltage of described 3rd diode (D3), the collector electrode of described first triode (Q1) is connected with the base stage of the 3rd triode (Q3) by the 4th diode (D4), the collector electrode of the first triode (Q1) is connected with the positive pole of the 4th diode (D4), the emitter of the first triode (Q1) is connected with the emitter of the second triode (Q2), and all by the 3rd resistance (R3) ground connection, the collector electrode of described second triode (Q2) accesses positive voltage by the second resistance (R2), its base stage passes through the series connection ground connection of the 5th resistance (R5) and the 6th resistance (R6), one end of 4th resistance (R4) is connected with the base stage of the second triode (Q2), its other end is connected with the negative pole of the 4th diode (D4), the grounded emitter of described 3rd triode (Q3).The two ends of the first resistance (R1) are parallel with the first electric capacity (C1), also comprise the 3rd electric capacity (C3), and one end of described 3rd electric capacity (C3) is connected with the base stage of the second triode (Q2), other end ground connection.
Circuit of the present invention utilizes the characteristic of diode and electric capacity, makes output voltage stability high, fluctuate little, and temperature coefficient is little, and temperature stability is good, and noise is low, and structure is simple, is applicable in the power supply of low-voltage.
Claims (5)
1. a direct current regulation circuit, it is characterized in that: comprise triode, diode, resistance and electric capacity, described triode comprises the first triode (Q1), second triode (Q2) and the 3rd triode (Q3), the base stage of described first triode (Q1) is connected with the negative pole of the 3rd diode (D3) by the first resistance (R1), the positive pole access positive voltage of described 3rd diode (D3), the collector electrode of described first triode (Q1) is connected with the base stage of the 3rd triode (Q3) by the 4th diode (D4), the emitter of the first triode (Q1) is connected with the emitter of the second triode (Q2), and all by the 3rd resistance (R3) ground connection, the collector electrode of described second triode (Q2) accesses positive voltage by the second resistance (R2), its base stage passes through the series connection ground connection of the 5th resistance (R5) and the 6th resistance (R6), one end of 4th resistance (R4) is connected with the base stage of the second triode (Q2), its other end is connected with the negative pole of the 4th diode (D4), the grounded emitter of described 3rd triode (Q3).
2. a kind of direct current regulation circuit according to claim 1, it is characterized in that: the base stage of described first triode (Q1) is connected with the positive pole of the first diode (D1), the negative pole of described first diode (D1) is connected with the negative pole of the second diode (D2), the plus earth of described second diode (D2).
3. a kind of direct current regulation circuit according to claim 1, is characterized in that: the collector electrode of described first triode (Q1) is connected with the positive pole of the 4th diode (D4).
4. a kind of direct current regulation circuit according to claim 1, is characterized in that: the two ends of described first resistance (R1) are parallel with the first electric capacity (C1).
5. a kind of direct current regulation circuit according to claim 1, is characterized in that: also comprise the 3rd electric capacity (C3), and one end of described 3rd electric capacity (C3) is connected with the base stage of the second triode (Q2), other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407694.6A CN103457461B (en) | 2013-09-10 | 2013-09-10 | A kind of direct current regulation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407694.6A CN103457461B (en) | 2013-09-10 | 2013-09-10 | A kind of direct current regulation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103457461A CN103457461A (en) | 2013-12-18 |
| CN103457461B true CN103457461B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310407694.6A Expired - Fee Related CN103457461B (en) | 2013-09-10 | 2013-09-10 | A kind of direct current regulation circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN103457461B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2498637Y (en) * | 2001-07-13 | 2002-07-03 | 福建省轮船总公司通信导航技术服务分公司 | Self set-up voltage stable electric source with overcurrent and overvoltage protector |
| CN1461100A (en) * | 2003-06-11 | 2003-12-10 | 何岳明 | Low-voltage D.C. power supply circuit |
| CN201191807Y (en) * | 2008-05-16 | 2009-02-04 | 北京恒尔康科技有限公司 | Electric power circuit special for brushless motor controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63211007A (en) * | 1987-02-27 | 1988-09-01 | Furukawa Electric Co Ltd:The | Constant voltage power circuit |
-
2013
- 2013-09-10 CN CN201310407694.6A patent/CN103457461B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2498637Y (en) * | 2001-07-13 | 2002-07-03 | 福建省轮船总公司通信导航技术服务分公司 | Self set-up voltage stable electric source with overcurrent and overvoltage protector |
| CN1461100A (en) * | 2003-06-11 | 2003-12-10 | 何岳明 | Low-voltage D.C. power supply circuit |
| CN201191807Y (en) * | 2008-05-16 | 2009-02-04 | 北京恒尔康科技有限公司 | Electric power circuit special for brushless motor controller |
Non-Patent Citations (1)
| Title |
|---|
| 一种效率高性能好的稳压电源;吕贤望;《红外与激光技术》;19830131;第25-28页 * |
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| CN103457461A (en) | 2013-12-18 |
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Effective date of registration: 20151210 Address after: 2 building, No. 3, Feng Feng Road, Zhenjiang, Suzhou, Jiangsu Applicant after: Kunshan Longshida Electronic Material Co.,Ltd. Address before: Suzhou City, Jiangsu Province, Kunshan City Zhang Pu Feng Zhenjiang Road No. 3 room 2 Applicant before: Kunshan Xinjinfu Precision Electronics Co., Ltd. |
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Granted publication date: 20160120 Termination date: 20160910 |
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