Patent ID: 11936303
Assignee: FUJI ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 2:
3. The power conversion device according to claim 2, wherein the controller is configured to, when transmitting the power from the second bridge circuit to the first bridge circuit and performing the step-up operation, perform a control to set duty ratios of the third upper arm and the third lower arm of the second bridge circuit to 0.5 to invert and alternately turn on and off the third upper arm and the third lower arm, and to set duty ratios of the fourth upper arm and the fourth lower arm of the second bridge circuit to 0.5 to turn on the fourth upper arm in synchronization with the turn-on of the third lower arm and turn on the fourth lower arm in synchronization with the turn-on of the third upper arm.