CN203230609U - Efficient fan control circuit based on switch regulator - Google Patents
Efficient fan control circuit based on switch regulator Download PDFInfo
- Publication number
- CN203230609U CN203230609U CN 201320203847 CN201320203847U CN203230609U CN 203230609 U CN203230609 U CN 203230609U CN 201320203847 CN201320203847 CN 201320203847 CN 201320203847 U CN201320203847 U CN 201320203847U CN 203230609 U CN203230609 U CN 203230609U
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- Prior art keywords
- resistor
- capacitor
- switch regulator
- fan
- switching regulaor
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Abstract
The utility model discloses an efficient fan control circuit based on a switch regulator. The efficient fan control circuit comprises a direct-current power supply, a first switch regulator, a second switch regulator, a CPU, a diode, a fan, a first capacitor, a second capacitor, a third capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor and a fifth resistor. The utility model provides a computer fan monitoring circuit, a mainboard of a computer can be prevented from burning caused by heating, and the fan control circuit has the advantages of simple circuit structure, stable performance and convenience in mounting and regulating.
Description
Technical field
The utility model relates to a kind of fan control circuitry, relates in particular to a kind of high efficiency fan control circuitry based on switching regulaor.
Background technique
Along with the raising of people's living standard, computer has been applied in all trades and professions, and owing to start for a long time, the computer fan heat radiation was lost efficacy, and the mainboard of computer generates heat, thereby burns out the circuit board of collector electrode, is unfavorable for the manufacturing efficiency of all trades and professions.
The model utility content
The purpose of this utility model provides a kind of high efficiency fan control circuitry based on switching regulaor with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises DC electrical source, first switching regulaor, the second switch regulator, CPU, diode, fan, first capacitor, second capacitor, the 3rd capacitor, first resistor, second resistor, the 3rd resistor, the 4th resistor and the 5th resistor, the cathode output end of described DC electrical source respectively with first end of described first capacitor, first end of described first resistor, the electrode input end of described second switch regulator connects, second end of described first capacitor respectively with first end of described second capacitor, the negative input of described second switch regulator, the positive pole of described first diode, first end of described the 4th resistor, first end of described the 3rd capacitor, first end of described fan and the cathode output end of described DC electrical source are connected, second end of described first resistor is connected with the high-triggering end of described second switch regulator and the low triggering end of described second switch regulator respectively, the discharge end of described second switch regulator is connected with the negative pole of described first diode and first end of described second resistor respectively, second end of described second resistor respectively with first end of described the 3rd resistor, second end of described the 3rd capacitor and second end of described fan are connected, second end of described the 3rd resistor respectively with the signal output part of described first switching regulaor, second end of described the 4th resistor is connected with first end of described the 5th resistor, second end of described the 5th resistor is connected with the electrode input end of described first switching regulaor, the cathode output end of described first switching regulaor is connected with the electrode input end of described CPU, the cathode output end of described first switching regulaor is connected with the electrode input end of described CPU, and the control end of described first switching regulaor is connected with the control end of described fan.
The beneficial effects of the utility model are:
The utility model provides a kind of computer fan observation circuit, can prevent that computer from burning out the mainboard of computer owing to heating; The utlity model has that circuit structure is simple, stable performance and Installation and Debugging advantage easily.
Description of drawings
Fig. 1 is the circuit diagram of the high efficiency fan control circuitry based on switching regulaor described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises DC electrical source, the first switching regulaor U1, second switch regulator U2, CPU, diode VD1, fan, the first capacitor C1, the second capacitor C2, the 3rd capacitor C3, the first resistor R1, the second resistor R2, the 3rd resistor R3, the 4th resistor R4 and the 5th resistor R5, the cathode output end of DC electrical source respectively with first end of the first capacitor C1, first end of the first resistor R1, the electrode input end of second switch regulator U2 connects, second end of the first capacitor C1 respectively with first end of the second capacitor C2, the negative input of second switch regulator U2, the positive pole of the first diode VD1, first end of the 4th resistor R4, first end of the 3rd capacitor C3, first end of fan and the cathode output end of DC electrical source are connected, second end of the first resistor R1 is connected with the high-triggering end of second switch regulator U2 and the low triggering end of second switch regulator U2 respectively, the discharge end of second switch regulator U2 is connected with the negative pole of the first diode VD1 and first end of the second resistor R2 respectively, second end of the second resistor R2 respectively with first end of the 3rd resistor R3, second end of the 3rd capacitor C3 and second end of fan are connected, second end of the 3rd resistor R3 respectively with the signal output part of second switch regulator U2, second end of the 4th resistor R4 is connected with first end of the 5th resistor R5, second end of the 5th resistor R5 is connected with the electrode input end of the first switching regulaor U1, the cathode output end of the first switching regulaor U1 is connected with the electrode input end of CPU, the cathode output end of the first switching regulaor U1 is connected with the electrode input end of CPU, and the control end of the first switching regulaor U1 is connected with the control end of fan.
Claims (1)
1. high efficiency fan control circuitry based on switching regulaor, it is characterized in that: comprise DC electrical source, first switching regulaor, the second switch regulator, CPU, diode, fan, first capacitor, second capacitor, the 3rd capacitor, first resistor, second resistor, the 3rd resistor, the 4th resistor and the 5th resistor, the cathode output end of described DC electrical source respectively with first end of described first capacitor, first end of described first resistor, the electrode input end of described second switch regulator connects, second end of described first capacitor respectively with first end of described second capacitor, the negative input of described second switch regulator, the positive pole of described first diode, first end of described the 4th resistor, first end of described the 3rd capacitor, first end of described fan and the cathode output end of described DC electrical source are connected, second end of described first resistor is connected with the high-triggering end of described second switch regulator and the low triggering end of described second switch regulator respectively, the discharge end of described second switch regulator is connected with the negative pole of described first diode and first end of described second resistor respectively, second end of described second resistor respectively with first end of described the 3rd resistor, second end of described the 3rd capacitor and second end of described fan are connected, second end of described the 3rd resistor respectively with the signal output part of described first switching regulaor, second end of described the 4th resistor is connected with first end of described the 5th resistor, second end of described the 5th resistor is connected with the electrode input end of described first switching regulaor, the cathode output end of described first switching regulaor is connected with the electrode input end of described CPU, the cathode output end of described first switching regulaor is connected with the electrode input end of described CPU, and the control end of described first switching regulaor is connected with the control end of described fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203847 CN203230609U (en) | 2013-04-22 | 2013-04-22 | Efficient fan control circuit based on switch regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203847 CN203230609U (en) | 2013-04-22 | 2013-04-22 | Efficient fan control circuit based on switch regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230609U true CN203230609U (en) | 2013-10-09 |
Family
ID=49286738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320203847 Expired - Fee Related CN203230609U (en) | 2013-04-22 | 2013-04-22 | Efficient fan control circuit based on switch regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230609U (en) |
-
2013
- 2013-04-22 CN CN 201320203847 patent/CN203230609U/en not_active Expired - Fee Related
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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: 20131009 Termination date: 20140422 |