A noise reduction device according to one embodiment includes a noise reduction circuit and a failure diagnosis circuit. The noise reduction circuit generates an offset signal with reverse polarity of a noise component generated in a load. The failure diagnosis circuit detects a level of the offset signal. The failure diagnosis circuit determines whether or not a detected level of the offset signal deviates from an appropriate range. The failure diagnosis circuit diagnoses, on the basis of a determination result, whether or not a failure has occurred in the noise reduction circuit.
NOISE REDUCTION DEVICE, POWER CONVERSION DEVICE, VEHICLE, AND NOISE REDUCTION METHOD
2023-09-21
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES |
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