Li&Cai Intellectual Property (USA) Office
Alternating current chopper circuit with low noise
An alternating current chopper circuit with low noise is disclosed. The circuit includes a switching circuit, a first freewheel circuit, and a second freewheel circuit. The switching circuit has a control switching unit, which turns on and or off accordingly to a control signal. The first freewheel circuit and the second freewheel circuit are for providing a current-conducting path to the motor, when the control switching unit is turned off.
National Formosa University
H H
H02P H02M
inventional inventional
Yu-Kai Chin-Hsiung
Chen Chang