发明名称 Power converter and motor driving device using the same
摘要 In order to reduce the average power of the ringing noise, the present invention provides a power converter comprising: an arm circuit including a high-voltage side switching device to which a first diode is connected in parallel and a low-voltage side switching device to which a second diode is connected in parallel; and a main power supply connected to a series circuit of the high-voltage side switching device and the low-voltage side switching device, wherein a connecting point between the high-voltage side switching device and the low-voltage side switching device is connected to a load, and a resonant frequency calculated from inductances of wirings of a closed circuit including the first diode, the second diode, and the main power supply and a capacitance across the first diode is different form that calculated from the inductances of the wirings and a capacitance across the second diode.
申请公布号 US8619448(B2) 申请公布日期 2013.12.31
申请号 US201113176776 申请日期 2011.07.06
申请人 OGAWA KAZUTOSHI;ISHIKAWA KATSUMI;HITACHI, LTD. 发明人 OGAWA KAZUTOSHI;ISHIKAWA KATSUMI
分类号 H02M7/5387 主分类号 H02M7/5387
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