Fan driving circuit using an adaptive PWM input signal
AssigneeDatech Technology Co., Ltd.
InventorTaung-Te Ho
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Abstract
This present invention provides a method of fan driving circuit using an adaptive pulse width modulator (PWM) input signal for a signal generator electronically connecting to a fan motor and providing power of the fan motor, the signal generator providing a control signal for controlling ON/OFF of power mentioned. Wherein, the signal generator is a PWM circuit, and this signal generator provides different PWM signal in pursuance of different fan motor loading, enables fan motor stated comprises of adaptive PWM.
Claims1
A fan driving circuit using an adaptive PWM input signal for a signal generator electronically connecting to a fan motor and providing power of said fan motor, said signal generator generating a control signal for controlling ON/OFF of said power;
- which is characterized in that,
- said signal generator being a pulse width modulator (PWM) circuit, different PWM signal in pursuance of different fan motor loading which comprises low velocity, medium velocity and whole velocity, a buffer period between said different PWM signal with a ratio of wave width in a range of 3% to 30%.
Dependencies are inferred from the claim text.