Patent ID: 11936283
Assignee: HITACHI ASTEMO, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A gate driving power source device in which a plurality of upper arms and a plurality of lower arms are provided in each of a plurality of power conversion circuits including one or more multi-phase conversion circuits performing DC/AC power conversion or AC/DC power conversion and which supplies a DC power source to a plurality of gate drive circuits of each of the upper arms and each of the lower arms, the gate driving power source device comprising:
a shared power source unit that is a first DC power source circuit supplying a first shared DC power source to a gate drive circuit driving any one of a plurality of lower arms of one multi-phase conversion circuit of the multi-phase conversion circuits or any one of a plurality of upper arms of the one multi-phase conversion circuit of the multi-phase conversion circuits and a gate drive circuit driving upper arms or lower arms of power conversion circuits other than the one multi-phase conversion circuit of the multi-phase conversion circuits.