Bacon & Thomas, PLLC
Controlling circuit for outputting a square wave signal to control a fan rotating speed
A controlling circuit for outputting a square wave circuit to control a fan rotating speed is disclosed, where an output unit continuously outputs the square wave signal and the output unit is electrically connected to a time-delaying adjustment circuit, so that a duty-ratio formed not equal to 50% is outputted to control the fan rotating speed, whereby a particular duty-ratio is provided to control the fan rotating speed after a control chip for fan rotating speed is pulled out.
INVENTEC CORPORATION INVENTEC (PUDONG) TECHNOLOGY CORPORATION
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inventional inventional inventional inventional
Fang-Jie Xiao-Gang Cheng
Chu Li Wang