| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power conversion device and a power supply system that can prevent biased magnetization of a transformer. <P>SOLUTION: A power conversion device 20 including at least switching elements Q1-Q4 and a transformer Tr1 includes: two or more diodes D21, D22 (rectification sections) for rectifying AC powers output from secondary terminals of the transformer Tr1; integrated waveform output sections 22, 23 for individually integrating rectified DC powers to output waveforms; a peak hold section 24 for holding a peak value Wp of one of the two or more waveforms output from the integrated waveform output sections 22, 23; a differential value detection section 25 for detecting a differential value Δd between a waveform value W2 of the other of the two or more waveforms and the peak value Wp held in the peak hold section 24; and an operation signal control section 21 for controlling operation signals to manipulate the switching elements Q1-Q4 on the basis of the detected differential value Δd. <P>COPYRIGHT: (C)2013,JPO&INPIT |
