Patent ID: 11881804
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC H

Claim 0:
1. A drive device for a rotating electric machine, comprising:
a power conversion circuit that comprises a DC/AC inverter circuit, and is configured to convert DC power supplied from a storage battery into AC power, and to supply the AC power to the rotating electric machine; and
a processor configured to output an inverter switching signal to the DC/AC inverter circuit of the power conversion circuit and output a converter switching signal, and when the storage battery is to be charged, and a temperature of the storage battery is lower than a set temperature suitable for charging, set frequencies of the inverter switching signal and the converter switching signal to maximum frequencies which do not raise a temperature of the power conversion circuit to a value that the power conversion circuit is not capable of withstanding, which is different from frequencies of the inverter switching signal and the converter switching signal in a normal drive state of the rotating electric machine.