Invention Grant
US09106148B2 Power supply apparatus and image forming apparatus 有权
电源装置和图像形成装置

Power supply apparatus and image forming apparatus
Abstract:
The power supply apparatus includes a transformer having primary and secondary sides, a switching element, a feedback unit, a conversion unit that converts a current flowing in a primary winding of the transformer into a voltage, a control unit that controls operation of the switching element, a voltage switching unit that increases the voltage output from the conversion unit and feeds the increased voltage to the control unit when a continuous oscillation state is transited to an intermittent oscillation state. The voltage switching unit switches the voltage of the power supply that is input into the control unit to be higher when the continuous oscillation state is transited to the intermittent oscillation state.
Public/Granted literature
Information query
Patent Agency Ranking
0/0