| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an AC power generation device which can surely generate AC power by a simple constitution, a compressor drive unit and a refrigeration/air-conditioning device. <P>SOLUTION: The AC power generation device 101 comprises: an inverter 2 which converts DC power into AC power, and feeds it to a load 1; a current detection part 5 which detects a current flowing through the inverter 2, and outputs a detection signal which indicates the detected current; an amplifier 6 which amplifies the detection signal and whose amplification rate is variable; and an inverter control part 51 which detects a phase difference between an AC voltage fed to the load 1 and an AC current fed to the load 1 on the basis of the detection signal after amplification, and controls the inverter 2 on the basis of the detected phase difference. <P>COPYRIGHT: (C)2009,JPO&INPIT |
