CN107171552A - Serial regulating circuit - Google Patents
Serial regulating circuit Download PDFInfo
- Publication number
- CN107171552A CN107171552A CN201710519842.1A CN201710519842A CN107171552A CN 107171552 A CN107171552 A CN 107171552A CN 201710519842 A CN201710519842 A CN 201710519842A CN 107171552 A CN107171552 A CN 107171552A
- Authority
- CN
- China
- Prior art keywords
- voltage
- difference amplifier
- input
- regulating circuit
- adjustment pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- 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
Abstract
The invention discloses a kind of serial regulating circuit, including adjustment pipe, difference amplifier, sampling resistor and the load being connected between input voltage Vi and output voltage Vo；Connection adjustment pipe between input voltage Vi and the output voltage Vo of output end, output end is connected with load, sampling resistor carries out the sampled voltage Vf after sampling partial pressure to the voltage of load as the input all the way of difference amplifier, and another road input of difference amplifier is default reference voltage Vr；The output end feedback control adjustment pipe of difference amplifier.The serial regulating circuit of the present invention, circuit connection is simple, and cost is low；Output voltage is set to remain stable by negative feedback loop, voltage regulation result is good, small power consumption.
Description
Technical field
The present invention relates to a kind of serial regulating circuit, belong to field of circuit technology.
Background technology
Existing serial regulating circuit is a lot, but respectively has advantage and disadvantage, often in order to reach more preferable voltage regulation result needs
Using extremely complex circuit, it is bigger that complicated circuit causes power consumption again.
The content of the invention
The technical problems to be solved by the invention are to overcome the defect of prior art there is provided a kind of serial regulating circuit, surely
Press effect good, small power consumption.
In order to solve the above technical problems, the present invention provides a kind of serial regulating circuit, it is characterized in that, including it is connected to input
Adjustment pipe, difference amplifier, sampling resistor and load between voltage Vi and output voltage Vo；
Connection adjustment pipe between input voltage Vi and the output voltage Vo of output end, output end is connected with load, sampling resistor pair
The voltage of load carries out the sampled voltage Vf after sampling partial pressure as the input all the way of difference amplifier, difference amplifier it is another
Road input is default reference voltage Vr；The output end feedback control adjustment pipe of difference amplifier.
Adjustment pipe uses triode.
The colelctor electrode of input voltage Vi input adjustment pipes, the emitter stage of adjustment pipe is output as output voltage Vo.
Sampling resistor includes being connected on the first resistor and second resistance at load two ends, first resistor and second resistance partial pressure
Sampled voltage Vf afterwards as difference amplifier input all the way.
The output end feedback link of difference amplifier to the base stage for adjusting pipe is inputted.
A voltage amplification and DC level shift circuit are also connected between the base stage of difference amplifier and adjustment pipe.
The beneficial effect that the present invention is reached：
The serial regulating circuit of the present invention, circuit connection is simple, and cost is low；Output voltage is remained by negative feedback loop
Stable, voltage regulation result is good, small power consumption.
Brief description of the drawings
Fig. 1 is serial regulating circuit figure.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, the serial regulating circuit of the present invention includes being connected between input voltage Vi and output voltage Vo
Adjust pipe, difference amplifier, sampling resistor R1, R2 and load RL.
Connection adjustment pipe V1 between input voltage Vi and output voltage Vo, wherein, input voltage Vi input adjustment pipes V1's
Colelctor electrode, adjustment pipe V1 emitter stage is output as output voltage Vo.Output end is connected with load RL, and load RL two ends are in series with
Sampled voltage Vf after sampling resistor R1, R2, sampling resistor R1, R2 partial pressure is as the input all the way of difference amplifier, and difference puts
Another road input of big device is default reference voltage Vr.The output end of difference amplifier is connected to adjustment pipe V1 base stage.
Sampled voltage Vf with reference voltage Vr by difference amplifier be compared after output signal as adjustment pipe V1
Base stage is inputted, and constitutes a negative-feedback circuit.When loading RL changes, adjusted by negative feedback loop so that output voltage Vo is kept
It is stable.
Adjustment pipe V1 uses triode.
A voltage amplification and DC level displacement electricity can also be connected between difference amplifier and adjustment pipe V1 base stage
Road.Voltage amplification and DC level shift circuit using the existing circuit that can realize voltage amplification and DC level displacement i.e.
Can.
The same input voltage of circuit power consumption of the present invention, the difference of output voltage have relation, and pressure difference is bigger, and power consumption is bigger, therefore
Power consumption can be reduced by adjusting pressure difference.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and deformation can also be made, these improve and deformed
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of serial regulating circuit, it is characterized in that, including be connected between input voltage Vi and output voltage Vo adjustment pipe,
Difference amplifier, sampling resistor and load；
Connection adjustment pipe between input voltage Vi and the output voltage Vo of output end, output end is connected with load, sampling resistor pair
The voltage of load carries out the sampled voltage Vf after sampling partial pressure as the input all the way of difference amplifier, difference amplifier it is another
Road input is default reference voltage Vr；The output end feedback control adjustment pipe of difference amplifier.
2. serial regulating circuit according to claim 1, it is characterized in that, adjustment pipe uses triode.
3. serial regulating circuit according to claim 2, it is characterized in that, the colelctor electrode of input voltage Vi input adjustment pipes,
The emitter stage of adjustment pipe is output as output voltage Vo.
4. serial regulating circuit according to claim 2, it is characterized in that, sampling resistor includes being connected on the of load two ends
Sampled voltage Vf after one resistance and second resistance, first resistor and second resistance partial pressure is used as the defeated all the way of difference amplifier
Enter.
5. serial regulating circuit according to claim 2, it is characterized in that, the output end feedback link of difference amplifier is extremely adjusted
The base stage input of homogeneous tube.
6. serial regulating circuit according to claim 2, it is characterized in that, between the base stage of difference amplifier and adjustment pipe
It is also connected with a voltage amplification and DC level shift circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519842.1A CN107171552A (en) | 2017-06-30 | 2017-06-30 | Serial regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519842.1A CN107171552A (en) | 2017-06-30 | 2017-06-30 | Serial regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171552A true CN107171552A (en) | 2017-09-15 |
Family
ID=59827277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710519842.1A Withdrawn CN107171552A (en) | 2017-06-30 | 2017-06-30 | Serial regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107171552A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505973A (en) * | 2017-10-10 | 2017-12-22 | 南京冉思电子科技有限公司 | A kind of GaN chips TGA2216 SM adjustable reduction voltage circuit |
-
2017
- 2017-06-30 CN CN201710519842.1A patent/CN107171552A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505973A (en) * | 2017-10-10 | 2017-12-22 | 南京冉思电子科技有限公司 | A kind of GaN chips TGA2216 SM adjustable reduction voltage circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170915 |
|
| WW01 | Invention patent application withdrawn after publication |