POWER CONVERTING DEVICE AND GROUND IMPEDANCE VALUE DETECTING METHOD
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United States of America Patent
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app pub date -
Mar 27, 2017
filing date -
Jul 7, 2016
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Abstract
A power converting device includes a DC-DC converting circuit, a DC-AC converting circuit, and an insulation detecting circuit. The DC-DC converting circuit is configured to convert a DC input voltage to a DC bus voltage. The DC-AC converting circuit is electrically coupled to the DC-DC converting circuit and configured to convert the DC bus voltage to an AC voltage. The insulation detecting circuit is electrically coupled between the DC-DC converting circuit and the DC-AC converting circuit. The insulation detecting circuit is configured to detect a ground impedance value of the power converting device according to the DC bus voltage.
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