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Cooling Fan Manufacturer temperature control system constitutes governor

Date: 2015-4-24   Click: 1497 Times

One kind of "Cooling Fan Manufacturer" The temperature control system, comprising: one or more temperature-controlled DC fan speed control device constituted; temperature of the DC fan speed control device comprising: a temperature sensing unit, the power control unit and feedback unit; by the temperature sensing unit and a resistor in series with the thermistor, the other end of the resistor in series with the thermistor is connected to the power source; the "Cooling Fan Manufacturer" by the transistor power control unit, MOS transistor and Schottky diode, the transistor's base after a resistor in series between the thermistor and resistor connected to the collector of the transistor with a gate MOS transistor, said "Cooling Fan Manufacturer" triode after the collector through a resistor connected to the power source, and the source of the MOS transistors are connected to the power source, the drain of the MOS transistor is connected to a Schottky diode, a Schottky diode as the output of a DC fan temperature the output speed control device is connected to the DC fan;

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