公开(公告)号：US11750113B2

公开(公告)日：2023-09-05

申请号：US17600770

申请日：2020-04-14

Applicant: SANDEN AUTOMOTIVE COMPONENTS CORPORATION

Inventor： Yuki Makimura ,  Masataka Matsuda ,  Shogo Fujisaki ,  Masatoshi Saito

IPC: H02P27/08 ,  H02M7/5387 ,  H02P29/68 ,  H02M1/14

CPC classification number: H02M7/5387 ,  H02M1/14 ,  H02P27/08 ,  H02P29/68

Abstract: An inverter device is provided which is capable of more quickly raising an internal temperature of an electrolytic capacitor within a permissible range of a ripple voltage to shorten a non-operating time. The inverter device includes an electrolytic capacitor, an inverter circuit, a temperature sensor, and a control device. When the ambient temperature of the electrolytic capacitor detected by the temperature sensor is lower than a predetermined temperature, the control device on-drives specific switching elements of the inverter circuit before the start of a normal operation of a motor, and executes a warming up operation of allowing a current capable of controlling a ripple voltage of a DC voltage within a permissible range to flow through the motor at a predetermined rate of increase while keeping the motor stopped.