"Micro Cooling Fan" experts know that if we open the DC cooling fan motor, you can see the DC cooling fan uses a variable frequency motor, which is the position of the coil where you can be identified. Inverter motor control circuit board, control chip DSP function will set the drive devices in one, simplifying the circuit structure. Through the control chip can be programmed to change the motor speed. ? "Micro Cooling Fan" - cooling fan applications are where it below small band everyone together to understand: Mini fans are widely used in various high-precision, high-density electronics, hand held computers, miniature cameras, micro projector , negative ion generator, "Micro Cooling Fan" small high-speed cameras, car coffee maker, LED lighting, cooling modules, and other fields. If necessary, please inquire procurement, bearing up fan welcome your calls.