AC-DC BI-DIRECTIONALLY CONVERSION DEVICE WITH FAILURE DETERMINATION FUNCTION, FAILURE DETERMINATION METHOD AND COMPUTER READABLE MEDIUM

摘要

Provided is a conversion device which can determine the presence/absence of a failure in a detection unit for detecting AC or DC voltage or current.;A conversion device 23, including an AC-DC conversion circuit 4, a DC-DC conversion circuit 5 for converting DC voltage output from the AC-DC conversion circuit 4 and a detection unit for detecting AC or DC voltage or current, comprises an obtaining part for obtaining information indicating whether or not AC voltage is applied to the AC-DC conversion circuit 4, and a power supply fault determination part for determining presence/absence of a power supply fault or an open fault in the detection unit if the obtained information indicates that AC voltage is not applied to the AC-DC conversion circuit 4.