US 12,395,079 B2
Power supply device for controlling voltage
Ryo Oshima, Wako (JP); Koichi Tsuno, Wako (JP); and Toshio Inoue, Wako (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 22, 2023, as Appl. No. 18/124,746.
Application 18/124,746 is a continuation of application No. PCT/JP2020/039566, filed on Oct. 21, 2020.
Prior Publication US 2023/0223848 A1, Jul. 13, 2023
Int. Cl. H02M 3/156 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/156 (2013.01) [H02M 1/0003 (2021.05)] 9 Claims
OG exemplary drawing
 
1. A power supply device comprising:
a DC-DC converter that converts a first direct current voltage supplied from a direct current power supply to generate a second direct current voltage;
an inverter that is supplied with the second direct current voltage from the DC-DC converter and outputs an alternating current and an alternating current voltage; and
a controller that controls the DC-DC converter so that the second direct current voltage becomes a target voltage, wherein
the controller is configured to:
obtain a power consumption of the DC-DC converter;
control the DC-DC converter so that the second direct current voltage output from the DC-DC converter becomes higher than the target voltage when the power consumption is less than a first power; and
control the DC-DC converter so that the second direct current voltage output from the DC-DC converter becomes lower than the target voltage when the power consumption exceeds a second power greater than the first power.