CN201708706U - Two-path adjustable precise DC stabilized power supply - Google Patents
Two-path adjustable precise DC stabilized power supply Download PDFInfo
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- CN201708706U CN201708706U CN2010202411797U CN201020241179U CN201708706U CN 201708706 U CN201708706 U CN 201708706U CN 2010202411797 U CN2010202411797 U CN 2010202411797U CN 201020241179 U CN201020241179 U CN 201020241179U CN 201708706 U CN201708706 U CN 201708706U
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Abstract
The utility model relates to a two-path adjustable precise DC stabilized power supply. The DC stabilized power supply comprises a power transformer T1, diodes, triodes, resistors, capacitors, and the like, and is characterized in that one path of the output terminal of the power transformer is filtered by a bridge rectifier circuit D1 and the capacitor C1 to obtain unstabilized DC power supply, the positive pole of the unstabilized DC power supply is connected with the collector electrodes of the triodes Q1 and Q2; the collector electrode of the triode Q1 and the base electrode are mutually connected through the resistor R1 arranged therebetween; the emitting electrode of the triode Q1 and the base electrode of the triode Q2 are connected with each other; the emitting electrode of the triode Q2 serves as the positive pole of the DC stabilized power supply; a potentiometer W1 and the capacitor C5 are connected in parallel between the positive pole of the output terminal of the DC stabilized power supply and a public earth pole; the other path of the output terminal of the power output transformer is filtered by a bridge rectifier circuit D2 and the capacitor C2 to obtain unstabilized negative output DC power supply; the positive output terminal of the D1 is connected with the public earth pole of the stabilized power supply, and the negative output terminal of the D1 is connected with the collector electrodes of the triodes Q4 and Q5; the collector electrode of the triode Q4 and the base electrode are mutually connected through the resistor R3 arranged therebetween; the emitting electrode of the triode Q4 is connected with the base electrode of the triode Q3; and the emitting electrode of the triode Q3 is the negative pole of the DC stabilized power supply, so as to achieve positive and negative two-path output. The DC stabilized power supply can be used in circuit maintenance, electronic experiments, and other occasions.
Description
Technical field
The utility model relates to the adjustable D.C. regulated power supply of a kind of two-way, it be particularly related to a kind of from zero volt to setting continuously adjustable two-way precision DC stabilized voltage power supply between the maximum operating voltage.
Background technology
Existing series type direct current regulation source, because the voltage of voltage stabilizing didoe is limit, its output voltage generally is higher than the voltage stabilizing value of zener diode.Realize setting continuously adjustable precision DC voltage stabilizing output between the maximum output voltage from zero lying prostrate, must adopt accessory power supply, the pipe of counteracting voltage stabilizing didoe is pressed.But existing voltage stabilizing circuit, because components and parts and circuit power factor, voltage stability is low, is difficult to realize the accurate voltage stabilizing of two-way.
The utility model content
It is core parts that the purpose of this utility model is to provide the accurate integrated stable voltage circuit of a kind of employing, circuit structure is simple, output voltage can both can single channel be exported from zero volt to setting continuously adjustable two-way precision DC stabilized voltage power supply between the maximum output voltage, also can positive and negative symmetry output.
The purpose of this utility model can realize by following circuit.It comprises this two-way adjustable precision D.C. regulated power supply by power transformer T1, diode, triode, resistance, formations such as electric capacity, a road of power transformer T1 output, through bridge rectifier D1, obtain the DC power supply of not voltage stabilizing after capacitor C 1 filtering, the positive pole of the DC power supply of voltage stabilizing is not with triode Q1, the collector electrode of Q2 links to each other, connect resistance R 1 between the collector electrode of triode Q1 and the base stage, the emitter of triode Q1 links to each other with the base stage of triode Q2, the emitter of triode Q2 is the positive pole of D.C. regulated power supply, between the positive pole of D.C. regulated power supply output and public earth polar and be connected to potentiometer W1 and capacitor C 5; One end of resistance R 2 is connected on the collector electrode of triode Q1, the other end is connected on the negative pole of accurate integrated regulator Q 7, and the negative pole of Q7 extremely directly links to each other with control, and the positive pole of Q7 links to each other with power supply publicly, shunt capacitance C3 on the positive and negative polarities of Q7, the negative pole of Q7 links to each other with the negative pole of Q6; The negative pole of accurate integrated regulator Q3 links to each other with the base stage of Q1, and the positive pole of Q3 links to each other with the positive pole of Q8, and the center slide plate of the idiostatic device W1 of the controller of Q3 links to each other.
Obtain the negative output DC power supply of not voltage stabilizing after another road process bridge rectifier D2 of the output of power supply output transformer, capacitor C 2 filtering, the positive output end of D1 links to each other with stabilized voltage power supply publicly, negative output terminal links to each other with the collector electrode of triode Q4, Q5, connect resistance R 3 between the collector electrode of triode Q4 and the base stage, the emitter of triode Q4 links to each other with the base stage of triode Q5, and the emitter of triode Q5 is the negative pole of D.C. regulated power supply; Between the earth polar D.C. regulated power supply negative output terminal and public and be connected to potentiometer W2 and capacitor C 6; One end of resistance R 4 is connected on the collector electrode of triode Q4, the other end is connected on the positive pole of accurate integrated regulator Q8, and the negative pole of Q8 extremely directly links to each other with control, and the negative pole of Q8 links to each other with power supply publicly, shunt capacitance C4 on the positive and negative polarities of Q8, the positive pole of Q8 links to each other with the positive pole of Q3; The positive pole of accurate integrated regulator Q6 links to each other with the base stage of Q4, and the positive pole of Q6 links to each other with the positive pole of Q7, and the center slide plate of the extremely idiostatic device W2 of the control of Q6 links to each other.
In this circuit, the positive and negative two ends of direct current output are respectively the other side's accessory power supplys.By the voltage stabilizing of accurate integrated regulator, provide an absolute value identical, positive and negative opposite boost voltage, thus realized that stabilized voltage power supply lies prostrate continuously adjustable two-way output between the maximum operating voltage from zero.Owing to adopted accurate integrated regulator, circuit structure is simple, and precision of voltage regulation height is easy to realize the output of adjustable precision voltage stabilizing two-way, can be used for occasions such as maintenance circuit, electronic experiment.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
In circuit shown in Figure 1, it comprises this two-way adjustable precision D.C. regulated power supply by power transformer T1, diode, triode, resistance, formations such as electric capacity, a road of power transformer T1 output, through bridge rectifier D1, obtain the DC power supply of not voltage stabilizing after capacitor C 1 filtering, the positive pole of the DC power supply of voltage stabilizing is not with triode Q1, the collector electrode of Q2 links to each other, connect resistance R 1 between the collector electrode of triode Q1 and the base stage, the emitter of triode Q1 links to each other with the base stage of triode Q2, the emitter of triode Q2 is the positive pole of D.C. regulated power supply, between the positive pole of D.C. regulated power supply output and public earth polar and be connected to potentiometer W1 and capacitor C 5; One end of resistance R 2 is connected on the collector electrode of triode Q1, the other end is connected on the negative pole of accurate integrated regulator Q 7, and the negative pole of Q7 extremely directly links to each other with control, and the positive pole of Q7 links to each other with power supply publicly, shunt capacitance C3 on the positive and negative polarities of Q7, the negative pole of Q7 links to each other with the negative pole of Q6; The negative pole of accurate integrated regulator Q3 links to each other with the base stage of Q1, and the positive pole of Q3 links to each other with the positive pole of Q8, and the center slide plate of the idiostatic device W1 of the controller of Q3 links to each other.
Obtain the negative output DC power supply of not voltage stabilizing after another road process bridge rectifier D2 of the output of power supply output transformer, capacitor C 2 filtering, the positive output end of D1 links to each other with stabilized voltage power supply publicly, negative output terminal links to each other with the collector electrode of triode Q4, Q5, connect resistance R 3 between the collector electrode of triode Q4 and the base stage, the emitter of triode Q4 links to each other with the base stage of triode Q5, and the emitter of triode Q5 is the negative pole of D.C. regulated power supply; Between the earth polar D.C. regulated power supply negative output terminal and public and be connected to potentiometer W2 and capacitor C 6; One end of resistance R 4 is connected on the collector electrode of triode Q4, the other end is connected on the positive pole of accurate integrated regulator Q8, and the negative pole of Q8 extremely directly links to each other with control, and the negative pole of Q8 links to each other with power supply publicly, shunt capacitance C4 on the positive and negative polarities of Q8, the positive pole of Q8 links to each other with the positive pole of Q3; The positive pole of accurate integrated regulator Q6 links to each other with the base stage of Q4, and the positive pole of Q6 links to each other with the positive pole of Q7, and the center slide plate of the extremely idiostatic device W2 of the control of Q6 links to each other.
Circuit shown in Figure 1 can adopt following parameter: resistance R 1=R3=R2=R4=2K, potentiometer W1=W2=4.7k; Capacitor C 1=C2=1000uf, C3=C4=100uf, C5=C6=100uf; Triode and rectifier diode can be selected according to stabilized voltage power supply output current and voltage; Accurate integrated regulator Q3, Q6, Q7, Q8 select accurate integrated regulator TL431 for use.
Claims (1)
- A two-way adjustable precision D.C. regulated power supply it comprise by power transformer T1, diode, triode, resistance, formations such as electric capacity, it is characterized in that a road of power transformer T1 output, through bridge rectifier D1, obtain the DC power supply of not voltage stabilizing after capacitor C 1 filtering, the positive pole of the DC power supply of voltage stabilizing is not with triode Q1, the collector electrode of Q2 links to each other, connect resistance R 1 between the collector electrode of triode Q1 and the base stage, the emitter of triode Q1 links to each other with the base stage of triode Q2, the emitter of triode Q2 is the positive pole of D.C. regulated power supply, between the positive pole of D.C. regulated power supply output and public earth polar and be connected to potentiometer W1 and capacitor C 5; One end of resistance R 2 is connected on the collector electrode of triode Q1, the other end is connected on the negative pole of accurate integrated regulator Q7, and the negative pole of Q7 extremely directly links to each other with control, and the positive pole of Q7 links to each other with power supply publicly, shunt capacitance C3 on the positive and negative polarities of Q7, the negative pole of Q7 links to each other with the negative pole of Q6; The negative pole of accurate integrated regulator Q3 links to each other with the base stage of Q1, and the positive pole of Q3 links to each other with the positive pole of Q8, and the center slide plate of the idiostatic device W1 of the controller of Q3 links to each other; Obtain the negative output DC power supply of not voltage stabilizing after another road process bridge rectifier D2 of the output of power supply output transformer, capacitor C 2 filtering, the positive output end of D1 links to each other with stabilized voltage power supply publicly, negative output terminal links to each other with the collector electrode of triode Q4, Q5, connect resistance R 3 between the collector electrode of triode Q4 and the base stage, the emitter of triode Q4 links to each other with the base stage of triode Q5, and the emitter of triode Q5 is the negative pole of D.C. regulated power supply; Between the earth polar D.C. regulated power supply negative output terminal and public and be connected to potentiometer W2 and capacitor C 6; One end of resistance R 4 is connected on the collector electrode of triode Q4, the other end is connected on the positive pole of accurate integrated regulator Q8, and the negative pole of Q8 extremely directly links to each other with control, and the negative pole of Q8 links to each other with power supply publicly, shunt capacitance C4 on the positive and negative polarities of Q8, the positive pole of Q8 links to each other with the positive pole of Q3; The positive pole of accurate integrated regulator Q6 links to each other with the base stage of Q4, and the positive pole of Q6 links to each other with the positive pole of Q7, and the center slide plate of the extremely idiostatic device W2 of the control of Q6 links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202411797U CN201708706U (en) | 2010-06-29 | 2010-06-29 | Two-path adjustable precise DC stabilized power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202411797U CN201708706U (en) | 2010-06-29 | 2010-06-29 | Two-path adjustable precise DC stabilized power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708706U true CN201708706U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202411797U Expired - Fee Related CN201708706U (en) | 2010-06-29 | 2010-06-29 | Two-path adjustable precise DC stabilized power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201708706U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067365A1 (en) * | 2012-10-30 | 2014-05-08 | 广东易事特电源股份有限公司 | Series/parallel control circuit for double direct current power supplies |
| CN105468079A (en) * | 2015-12-30 | 2016-04-06 | 沈阳东软医疗系统有限公司 | Two-path symmetrical-output adjustable power source |
| CN106160523A (en) * | 2016-07-14 | 2016-11-23 | 成都市思卡利科技有限公司 | A kind of regulated power supply method of supplying power to using pi type filter to be filtered |
-
2010
- 2010-06-29 CN CN2010202411797U patent/CN201708706U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014067365A1 (en) * | 2012-10-30 | 2014-05-08 | 广东易事特电源股份有限公司 | Series/parallel control circuit for double direct current power supplies |
| CN105468079A (en) * | 2015-12-30 | 2016-04-06 | 沈阳东软医疗系统有限公司 | Two-path symmetrical-output adjustable power source |
| CN105468079B (en) * | 2015-12-30 | 2017-05-31 | 沈阳东软医疗系统有限公司 | A kind of double-pass symmetric exports regulated power supply |
| US10270340B2 (en) | 2015-12-30 | 2019-04-23 | Shenyang Neusoft Medical Systems Co., Ltd. | Two-path symmetrical-output adjustable power supply |
| CN106160523A (en) * | 2016-07-14 | 2016-11-23 | 成都市思卡利科技有限公司 | A kind of regulated power supply method of supplying power to using pi type filter to be filtered |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20110629 |