Radiating fan for computer
A heat dissipation fan and computer technology, applied in measuring devices, measuring flow/mass flow, liquid/fluid solid measurement, etc., can solve the problems of burning out the heat dissipation fan, large instantaneous current, etc., and achieve the effect of avoiding hot plugging
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[0008] Please refer to figure 1 A preferred embodiment of the computer cooling fan of the present invention includes a fan 10, a switch 14 and a filter capacitor C1. In this preferred embodiment, the switch 14 is a manual switch.
[0009] The fan 10 includes a ground pin 1 , a power pin 2 , an output pin 3 and an input pin 4 . The ground pin 1 is grounded; the power pin 2 is connected to the +12V computer system power supply through the switch 14, and grounded through the filter capacitor C1; the input pin 4 is input to control the computer cooling fan 10 speed control signal; the output pin 3 is connected to -12V computer system power supply through a first resistor R1, and outputs the fan speed signal through a second resistor R2.
[0010] During the test, when it is necessary to detect certain performance parameters under the state of starting the machine and stopping the heat dissipation with the fan 10, it is only necessary to disconnect the switch 14 to stop the operati...
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