| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rectifier circuit which can suppress loss of power due to parasitic capacitance or parasitic inductance of a semiconductor element. <P>SOLUTION: The rectifier circuit matches or mismatches impedance between a circuit of a previous stage and the rectifier circuit in accordance with the amplitude of an input AC voltage. When an AC voltage to be input has an amplitude equal to or smaller than a predetermined voltage, the impedance is matched and the AC voltage is applied as is to the rectifier circuit. Conversely, when the AC voltage to be input has an amplitude larger than the predetermined voltage, the impedance is mismatched, and the amplitude of the AC voltage is decreased by reflection and then the AC voltage is applied to the rectifier circuit. <P>COPYRIGHT: (C)2013,JPO&INPIT |
