CN107102670A - A kind of generating positive and negative voltage out-put supply module with voltage stabilizing function - Google Patents
A kind of generating positive and negative voltage out-put supply module with voltage stabilizing function Download PDFInfo
- Publication number
- CN107102670A CN107102670A CN201710269357.3A CN201710269357A CN107102670A CN 107102670 A CN107102670 A CN 107102670A CN 201710269357 A CN201710269357 A CN 201710269357A CN 107102670 A CN107102670 A CN 107102670A
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- Prior art keywords
- generating positive
- negative voltage
- voltage
- negative
- positive
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 17
- 230000009977 dual effect Effects 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
Abstract
The technical problem solved required for of the invention is to realize a kind of generating positive and negative voltage out-put supply module with voltage stabilizing function, including input bleeder circuit, operation amplifier mu balanced circuit, generating positive and negative voltage control output circuit.Power supply Vin realizes input buck functionality by resistance, amplifier input in the same direction is accessed by symmetrical series resistance bleeder circuit again, amplified according to dual operational amplifier LM358 working characteristics voltage stabilizing, dual power supply working environment is changed by single supply, symmetrical expression bipolarity generating positive and negative voltage is realized by output capacitor in the same direction filtering.Ensure the precision of voltage regulation as far as possible under the premise of ensureing that voltage can be separated into two groups of symmetrical generating positive and negative voltages.Simultaneity factor is simple in construction, inexpensive, the positive and negative dual output of dc source single ended input, solves the problem of most applications need the device that positive-negative power is powered.
Description
Technical field
The present invention relates to a kind of field of power supplies, more particularly to a kind of generating positive and negative voltage output power supply circuit with voltage stabilizing function
Field.
Background technology
Extensively, current positive-negative power is exported positive and negative out-put supply module application using single ended input both-end, output ripple electricity
Pressure is high, disturb larger, it is impossible to apply and ripple is being disturbed in sensitive equipment, and volume is relatively large, delivery efficiency is low, work(
Consumption is larger.
Operational amplifier is generally used in our life, with stronger common mode inhibition capacity, and high gain, defeated
Enter that impedance is low, thus using it as the link of amplification can make all technical of voltage-stabilized power supply be greatly improved.It is logical
Cross the improvement to circuit, it is possible to achieve single supply is powered operational amplifier voltage stabilizing generating positive and negative voltage output circuit.
The content of the invention
The technical problem to be solved in the invention is to realize that generating positive and negative voltage is exported a kind of can realize with voltage stabilizing function
Circuit arrangement, according to bleeder circuit and integrated operational amplifier circuit realize high voltage input under the positive and negative out-put supply mould of low pressure
Block.
The technical problem to be solved in the present invention is achieved through the following technical solutions：
A kind of generating positive and negative voltage out-put supply module with voltage stabilizing function of the present invention includes：Bleeder circuit is inputted, operation amplifier is steady
Volt circuit, generating positive and negative voltage control output circuit.
Described input bleeder circuit is made up of electric capacity C1 and resistance R1, R2, R3, R4, R5, R6.Electric capacity C1, R1, R2 group
Into circuit realiration high input voltage is carried out to be depressurized to the DC voltage value that can be distributed symmetrically, then be made up of R3, R4, R5, R6
Series resistance bleeder circuit realize voltage controllable processing.
Described operation amplifier mu balanced circuit uses LM358 dual operational amplifiers, for realizing the voltage stabilizing to circuit
Effect and internal frequency compensation, dual power supply is converted to by single supply.
Described generating positive and negative voltage control output circuit is made up of electric capacity C3, C4 and output port, for by after voltage stabilizing just
Bear symmetrical direct voltage output.
Described C3, C4 is all decoupling capacitance, and electric capacity C1, C2 of load operation amplifier in-phase output end serve suppression
Interference and the effect of filtering.
To achieve the above object, the technical solution adopted by the present invention is a kind of generating positive and negative voltage output electricity with voltage stabilizing function
Source module.Power supply Vin pass through R1, R2 constitute series resistance partial pressure optimized integration buck functionality, then by R3, R4, R5,
R6 constitutes symmetrical series resistance divider access operational amplifier input in the same direction.Operational amplifier is connected in voltage follow in itself
The form of device, it can be seen from operational amplifier work characteristics, the current potential between operational amplifier output terminal and dividing point is strictly equal,
The output end of operational amplifier is made into grounding, thus amplifier input direct-current be just correspondingly separated into two groups it is symmetrical
Positive-negative power, is all provided with symmetrical bias circuit construction, this just makes its output end for power amplification class device, inside it
DC potential is approximately the half of input direct voltage.
The present invention has the following advantages compared with conventional power source module：
1) high input voltage can be made effectively to be depressured to realize that symmetrical voltage is distributed；
2) single channel input generating positive and negative voltage output dc source is realized, solving most applications such as photodetector needs positive negative electricity
The problem of source power supply device；
3) the output precision of voltage regulation is high；
4) whole circuit small volume, convenient and swift, reliability are high；
5) component is few needed for, and overall cost is relatively low.
Brief description of the drawings
Fig. 1 is a kind of system block diagram of the generating positive and negative voltage out-put supply module with voltage stabilizing function.
Embodiment
The technical problem solved required for of the invention is to realize a kind of generating positive and negative voltage out-put supply mould with voltage stabilizing function
Block.Including input bleeder circuit, operation amplifier mu balanced circuit, generating positive and negative voltage control output circuit can be separated into guarantee voltage
Ensure the precision of voltage regulation as far as possible under two groups of symmetrical positive-negative powers, simultaneity factor is simple in construction, realize low cost.
Understand that the module includes the series connection voltage reduction module being made up of electric capacity C1 and resistance R1, R2 referring to Fig. 1, by resistance
The divider of R3, R4, R5, R6 and electric capacity C2 compositions makes tight into dual operational amplifier LM358 voltage and the current potential of dividing point
Lattice are equal, and dividing point is connected with operational amplifier LN1 (+), resistance R1, R2 dividing point and the Vcc ports of operational amplifier
It is connected, the Out access generating positive and negative voltage control output circuits of operational amplifier, while the output end of operational amplifier is made at ground connection
Dc source is separated into symmetrical generating positive and negative voltage after reason, partial pressure, suppresses to disturb and filters by electric capacity C3, C4, by positive negative output
Port exports DC voltage respectively.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (4)
1. a kind of generating positive and negative voltage out-put supply module with voltage stabilizing function, it is characterised in that：
Including input bleeder circuit, operation amplifier mu balanced circuit, generating positive and negative voltage control output circuit.
2. a kind of generating positive and negative voltage out-put supply module with voltage stabilizing function according to claim 1, it is characterised in that：
Described input bleeder circuit is made up of electric capacity C1, C2 and resistance R1, R2, R3, R4, R5, R6, resistance R1, R2 string
Connection is even in parallel with electric capacity C1, and resistance R3, R4, R5, R6, which are together in series, is linked into resistance R1 and R2 dividing point, electric capacity C2 and electricity
Hinder R5, R6 in parallel；The series resistance partial pressure optimized integration buck functionality of R1, R2 composition, then be made up of symmetrically R3, R4, R5, R6
Series resistance divider access operational amplifier input in the same direction.
3. a kind of generating positive and negative voltage out-put supply module with voltage stabilizing function according to claim 1, it is characterised in that：
Described operation amplifier mu balanced circuit uses LM358 dual operational amplifiers, the input in the same direction of operational amplifier
LN（+）It is connected with R4, R5 dividing point, the Vcc of operational amplifier is linked into R1, R2 dividing point, the output of operational amplifier
End Out is connected with GND and and is connected to LN（-）On, the Vee and Vin- and Vout- of operational amplifier are connected so that output end with
Current potential is strictly equal between dividing point.
4. a kind of generating positive and negative voltage out-put supply module with voltage stabilizing function according to claim 1, it is characterised in that：
Described generating positive and negative voltage control output circuit is made up of electric capacity C3 and C4, and electric capacity C3, C4 are together in series, and two ends connect defeated respectively
Go out and hold Vout+ and Vout-, electric capacity C3, C4 intermediate point meet GND, realize the filtering to exporting generating positive and negative voltage, suppress interference letter
Number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269357.3A CN107102670A (en) | 2017-04-24 | 2017-04-24 | A kind of generating positive and negative voltage out-put supply module with voltage stabilizing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269357.3A CN107102670A (en) | 2017-04-24 | 2017-04-24 | A kind of generating positive and negative voltage out-put supply module with voltage stabilizing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107102670A true CN107102670A (en) | 2017-08-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710269357.3A Pending CN107102670A (en) | 2017-04-24 | 2017-04-24 | A kind of generating positive and negative voltage out-put supply module with voltage stabilizing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107102670A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844156A (en) * | 2017-10-26 | 2018-03-27 | 广州金升阳科技有限公司 | Bleeder circuit and its application |
| CN107918435A (en) * | 2017-12-28 | 2018-04-17 | 苏州广林达电子科技有限公司 | Booster circuit |
| CN109947167A (en) * | 2019-03-14 | 2019-06-28 | 上海奥令科电子科技有限公司 | A kind of negative pressure linear voltage regulator |
| CN112152571A (en) * | 2020-09-29 | 2020-12-29 | 中国船舶重工集团公司第七二四研究所 | Circuit for supplying power to bipolar operational amplifier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841704A (en) * | 2012-11-23 | 2014-06-04 | 海洋王（东莞）照明科技有限公司 | Led lamp control circuit |
| CN204180362U (en) * | 2014-11-17 | 2015-02-25 | 深圳市林润实业有限公司 | A kind of control circuit of solar flashing light |
-
2017
- 2017-04-24 CN CN201710269357.3A patent/CN107102670A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841704A (en) * | 2012-11-23 | 2014-06-04 | 海洋王（东莞）照明科技有限公司 | Led lamp control circuit |
| CN204180362U (en) * | 2014-11-17 | 2015-02-25 | 深圳市林润实业有限公司 | A kind of control circuit of solar flashing light |
Non-Patent Citations (1)
| Title |
|---|
| 曹文;: "单电源供电回路中获得正负电源的特殊方法" * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844156A (en) * | 2017-10-26 | 2018-03-27 | 广州金升阳科技有限公司 | Bleeder circuit and its application |
| CN107918435A (en) * | 2017-12-28 | 2018-04-17 | 苏州广林达电子科技有限公司 | Booster circuit |
| CN109947167A (en) * | 2019-03-14 | 2019-06-28 | 上海奥令科电子科技有限公司 | A kind of negative pressure linear voltage regulator |
| CN109947167B (en) * | 2019-03-14 | 2020-10-20 | 上海奥令科电子科技有限公司 | Negative pressure linear voltage stabilizer |
| CN112152571A (en) * | 2020-09-29 | 2020-12-29 | 中国船舶重工集团公司第七二四研究所 | Circuit for supplying power to bipolar operational amplifier |
| CN112152571B (en) * | 2020-09-29 | 2024-04-30 | 中国船舶集团有限公司第七二四研究所 | Circuit for supplying power to bipolar operational amplifier |
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Application publication date: 20170829 |