CN201155474Y - Fan temperature control speed governing module - Google Patents
Fan temperature control speed governing module Download PDFInfo
- Publication number
- CN201155474Y CN201155474Y CNU2008200220209U CN200820022020U CN201155474Y CN 201155474 Y CN201155474 Y CN 201155474Y CN U2008200220209 U CNU2008200220209 U CN U2008200220209U CN 200820022020 U CN200820022020 U CN 200820022020U CN 201155474 Y CN201155474 Y CN 201155474Y
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- Prior art keywords
- fan
- control circuit
- temperature
- error amplifier
- connects
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- Expired - Fee Related
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- 230000005669 field effect Effects 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 7
- 230000005855 radiation Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Control Of Temperature (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model provides a temperature-controlled speed governing module for a fan. The temperature-controlled speed governing module is connected in series with a fan drive circuit, and consists of a temperature sensor, an error amplifier, a triode and a wave filter. The electric signal wire of the temperature sensor is connected with the input end of the error amplifier, and the output end of the error amplifier is connected with the signal input end of a control circuit. The control circuit is connected with a power supply through a power wire; and the signal output end of the control circuit is connected with the wave filter, the output end of which is connected with output end of the fan. The temperature-controlled speed governing module for a fan is designed reasonably and used conveniently, and fit for the automatic control of a CPU fan and a casing fan, thereby having high value of promotion and application.
Description
1, technical field
The utility model relates to a kind of radiating fan for computer of automatic speed regulation, specifically a kind of fan temperature regulate speed module.
2, background technique
Along with the computer level of integration is more and more higher, the heating of each accessory is also increasing.For the stable work of computer security, the radiation fan in the computer seems very important.
What the interior use of computer heat radiation system at present was maximum is cpu fan and case fan.Present cpu frequency is very high, and heating value is very big, so cpu fan is the indispensable accessory of CPU heat radiation.Each accessory of computer also needs case fan that these hot airs are in time discharged after by sink heat being discharged to air, takes away heat, the cool air of the outside of inspiration simultaneously.
Cpu fan and case fan all are to use+the 12V power supply, three-way power line, because the difference of computer operation condition, the heat that each accessory distributes can change along with the change of computer operation condition.But present use fan all has only a kind of revolution, can't can't reach the saving power consumption according to the suitable revolution of temperature regulation of heating accessory, reduces the purpose of noise.
3, summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of temperature regulate speed module at three-way radiation fan in the computer is provided, and how much regulates the revolution of fan according to the heat that accessory distributes, thereby reaches the saving power consumption, reduces the purpose of noise.
The technical solution of the utility model realizes in the following manner, with the variable signal of temperature transducer through amplifying, behind the rectifying and wave-filtering, driving radiation fan, thereby reach purpose by temperature variation control control fan revolution.This fan temperature regulate speed module is serially connected in the fan drive circuit, is made up of temperature transducer, error amplifier, triode and wave filter.The electrical signal line of temperature transducer connects the input end of error amplifier, the output terminal of error amplifier connects the signal input part of control circuit, control circuit connects power supply by power line, and the signal output part of control circuit connects wave filter, and the output terminal of wave filter connects the output terminal of fan.
The control circuit of said fans temperature regulate speed module is the control circuit that adopts triode or metal-oxide-semiconductor field effect transistor.Described temperature transducer is the thermistor of negative temperature coefficient, and the power supply of described control circuit is+the 12V power supply.
The utility model has the advantages that:
1, simple in structure, easy to use, only need in former radiation fan drive circuit, to be connected in series this fan temperature regulate speed module and get final product.
2, regulate the fan revolution automatically, save unnecessary power consumption, prolong fan working life.
4, description of drawings
Accompanying drawing 1 is the high-level schematic functional block diagram of fan temperature regulate speed module.
5, embodiment
Below in conjunction with accompanying drawing fan temperature regulate speed module of the present utility model is done following detailed description the in detail.
As shown in Figure 1, fan temperature regulate speed module of the present utility model is serially connected in the fan drive circuit, is made up of temperature transducer, error amplifier, triode and wave filter.The electrical signal line of temperature transducer connects the input end of error amplifier, the output terminal of error amplifier connects the signal input part of control circuit, control circuit connects power supply by power line, and the signal output part of control circuit connects wave filter, and the output terminal of wave filter connects the output terminal of fan.
The control circuit of fan temperature regulate speed module is the control circuit that adopts triode or metal-oxide-semiconductor field effect transistor.For transistor control circuit, the output terminal of error amplifier is by the base stage of circuit connection triode, and power supply connects the emitter of triode, and the collector electrode of triode connects wave filter.For the control circuit of metal-oxide-semiconductor field effect transistor, the output terminal of error amplifier is by the grid of circuit connection metal-oxide-semiconductor field effect transistor, and the source electrode of metal-oxide-semiconductor field effect transistor connects power supply by power line, and the drain electrode of metal-oxide-semiconductor field effect transistor connects wave filter.The power supply of control circuit is+the 12V power supply.
Above-mentioned temperature transducer adopts NTC, i.e. the thermistor of negative temperature coefficient, and " focus " variation of temperature can cause the respective change of resistance.Error amplifier further converts the NTC change in resistance variation of voltage signal to, thus the magnifying state of control triode.The control function by utilizing temperature transducer and the enlarging function of triode, thereby the size of regulating the fan power supply voltage.The output terminal of wave filter connects the input end of fan, makes the input voltage of radiation fan more stable.
Except that the disclosed technological points of this specification, all the other all are industry professional workforce's known technology.
Fan temperature regulate speed reasonable module design of the present utility model, easy to use, thereby, have good value for applications.
Claims (4)
1, fan temperature regulate speed module, it is characterized in that this temperature regulate speed module is serially connected in the fan drive circuit, form by temperature transducer, error amplifier, control circuit and wave filter, the electrical signal line of temperature transducer connects the input end of error amplifier, the output terminal of error amplifier connects the signal input part of control circuit, control circuit connects power supply by power line, and the signal output part of control circuit connects wave filter, and the output terminal of wave filter connects the output terminal of fan.
2, fan temperature regulate speed module according to claim 1, the control circuit that it is characterized in that this fan temperature regulate speed module are to adopt the control circuit of triode or metal-oxide-semiconductor field effect transistor.
3, fan temperature regulate speed module according to claim 1 and 2 is characterized in that described temperature transducer is the thermistor of negative temperature coefficient.
4, fan temperature regulate speed module according to claim 1 and 2 is characterized in that described power supply is+the 12V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200220209U CN201155474Y (en) | 2008-01-03 | 2008-01-03 | Fan temperature control speed governing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200220209U CN201155474Y (en) | 2008-01-03 | 2008-01-03 | Fan temperature control speed governing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155474Y true CN201155474Y (en) | 2008-11-26 |
Family
ID=40103258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200220209U Expired - Fee Related CN201155474Y (en) | 2008-01-03 | 2008-01-03 | Fan temperature control speed governing module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155474Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985946A (en) * | 2010-10-22 | 2011-03-16 | 北京星网锐捷网络技术有限公司 | Fan speed-regulation control circuit as well as control method and electronic device thereof |
-
2008
- 2008-01-03 CN CNU2008200220209U patent/CN201155474Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985946A (en) * | 2010-10-22 | 2011-03-16 | 北京星网锐捷网络技术有限公司 | Fan speed-regulation control circuit as well as control method and electronic device thereof |
| CN101985946B (en) * | 2010-10-22 | 2014-10-29 | 北京星网锐捷网络技术有限公司 | Fan speed-regulation control circuit as well as control method and electronic device thereof |
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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: 20081126 Termination date: 20110103 |