CN203894665U - Power supply temperature compensating circuit for portable main station - Google Patents
Power supply temperature compensating circuit for portable main station Download PDFInfo
- Publication number
- CN203894665U CN203894665U CN201420184196.XU CN201420184196U CN203894665U CN 203894665 U CN203894665 U CN 203894665U CN 201420184196 U CN201420184196 U CN 201420184196U CN 203894665 U CN203894665 U CN 203894665U
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- CN
- China
- Prior art keywords
- power supply
- triode
- portable main
- supply temperature
- compensator
- 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.)
- Expired - Lifetime
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- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Control Of Voltage And Current In General (AREA)
Abstract
The utility model discloses a power supply temperature compensating circuit for a portable main station. The power supply temperature compensating circuit comprises a triode T, a thermo-compensator Rt and a capacitor C, wherein the thermo-compensator Rt and the capacitor C control the base electrode current of the triode T to compensate temperature influence on the power supply. The power supply temperature compensating circuit ensures the power supply stability of the tasks of a portable main station system, and is high in efficiency and low in cost.
Description
Technical field
The utility model belongs to electronic circuit field, relates in particular to a kind of power supply temperature-compensation circuit of portable main website.
Background technology
In the design of portable main station system, employing be that LVPS is guaranteed low-power consumption and processing speed.
In actual field environment, because temperature variation bridge is frequent, if the large coupling of power source change is bad, can cause that larger signal disturbs, reduce system performance, when serious, can cause system crash.
In this case, must in system, add hardware temperature compensation circuit, keep circuit matching state, thus holding circuit characteristic.
Summary of the invention
The purpose of this utility model is to provide a kind of power supply temperature-compensation circuit of portable main website, and the power supply of realizing portable main station system task is stable, has efficiency high, the advantage that cost is low.
The technical scheme that realizes above-mentioned purpose is: a kind of power supply temperature-compensation circuit of portable main website, comprising: triode T, thermo-compensator Rt and capacitor C, wherein:
The collector of described triode T connects one end of power supply input Vcc and described thermo-compensator Rt, the base stage of described triode T connects the other end of described thermo-compensator Rt and one end of described capacitor C, the other end ground connection of described capacitor C, the emitter of described triode T connects power supply output Out.
Owing to having adopted the power supply temperature-compensation circuit of a kind of portable main website of the present utility model, by thermo-compensator Rt and capacitor C control the base current of triode T, compensate the impact of temperature on power supply, the power supply of having realized portable main station system task is stable, there is efficiency high, the advantage that cost is low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Please refer to Fig. 1, in figure, provided a kind of power supply temperature-compensation circuit of portable main website, comprising: triode T, thermo-compensator Rt and capacitor C, wherein:
The collector of triode T connects one end of power supply input Vcc and thermo-compensator Rt, and the base stage of triode T connects the other end of thermo-compensator Rt and one end of capacitor C, the other end ground connection of capacitor C, and the emitter of triode T connects power supply output Out.
Principle of work of the present utility model is: application positive temperature coefficient resistor forms negative-feedback circuit, and a kind of power supply temperature-compensation circuit of portable main website is provided, and the power supply of having realized portable main station system task is stable, has efficiency high, the advantage that cost is low.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations example to the utility model according to the above description.Thereby some details in embodiment should not form restriction of the present utility model, the utility model by the scope defining using appended claims as protection domain of the present utility model.
Claims (1)
1.
?a power supply temperature-compensation circuit for portable main website, is characterized in that, comprising: triode T, thermo-compensator Rt and capacitor C, wherein:
The collector of described triode T connects one end of power supply input Vcc and described thermo-compensator Rt, the base stage of described triode T connects the other end of described thermo-compensator Rt and one end of described capacitor C, the other end ground connection of described capacitor C, the emitter of described triode T connects power supply output Out; By the base current of thermo-compensator Rt and capacitor C control triode T, realize power supply temperature compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184196.XU CN203894665U (en) | 2014-04-16 | 2014-04-16 | Power supply temperature compensating circuit for portable main station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420184196.XU CN203894665U (en) | 2014-04-16 | 2014-04-16 | Power supply temperature compensating circuit for portable main station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203894665U true CN203894665U (en) | 2014-10-22 |
Family
ID=51721042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420184196.XU Expired - Lifetime CN203894665U (en) | 2014-04-16 | 2014-04-16 | Power supply temperature compensating circuit for portable main station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203894665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471483A (en) * | 2019-08-13 | 2019-11-19 | 安徽科技学院 | A kind of high-precision voltage stabilizing circuit of adjustable output |
-
2014
- 2014-04-16 CN CN201420184196.XU patent/CN203894665U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471483A (en) * | 2019-08-13 | 2019-11-19 | 安徽科技学院 | A kind of high-precision voltage stabilizing circuit of adjustable output |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |