POWER CONVERTING DEVICE AND GROUND IMPEDANCE VALUE DETECTING METHOD
First Claim
1. A power converting device, comprising:
- a dc-dc converting circuit configured to convert a dc input voltage to a dc bus voltage;
a dc-ac converting circuit electrically coupled to the dc-dc converting circuit and configured to convert the dc bus voltage to an ac voltage; and
an insulation detecting circuit electrically coupled between the dc-dc converting circuit and the dc-ac converting circuit,wherein 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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Accused Products
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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Citations
20 Claims
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1. A power converting device, comprising:
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a dc-dc converting circuit configured to convert a dc input voltage to a dc bus voltage; a dc-ac converting circuit electrically coupled to the dc-dc converting circuit and configured to convert the dc bus voltage to an ac voltage; and an insulation detecting circuit electrically coupled between the dc-dc converting circuit and the dc-ac converting circuit, wherein the insulation detecting circuit is configured to detect a ground impedance value of the power converting device according to the dc bus voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power converting device, comprising:
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a plurality of dc-dc converting circuits configured to convert a plurality of dc input voltages to a dc bus voltage; and an insulation detecting circuit electrically coupled to the dc-dc converting circuits, wherein the insulation detecting circuit is configured to detect a ground impedance value of the power converting device according to the dc bus voltage. - View Dependent Claims (13, 14, 15, 16)
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17. A ground impedance value detecting method for a power converting device, the method comprising:
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converting, by a dc-dc converting circuit, a dc input voltage to a dc bus voltage; providing a dc-ac converting circuit configured to convert the dc bus voltage to an ac voltage; receiving, by an insulation detecting circuit, the dc bus voltage; and detecting, by the insulation detecting circuit, a ground impedance value of the power converting device according to the dc bus voltage. - View Dependent Claims (18, 19, 20)
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Specification