公开(公告)号：US20140197869A1

公开(公告)日：2014-07-17

申请号：US14154645

申请日：2014-01-14

Applicant: DENSO CORPORATION

Inventor： Yousuke WATANABE ,  Junichi FUKUTA ,  Tsuneo MAEBARA

IPC: H03K17/56

CPC classification number: H03K17/18

Abstract: A circuit control device controlling a switching circuit which has a semiconductor switching element, having a main controller, a drive signal output portion and an obtaining portion. The main controller outputs a drive control signal. The drive signal output portion receives the drive control signal and outputs a drive signal to the switching element, the switching element acting on the basis of the drive signal. The obtaining portion obtains circuit information on status of the switching circuit in synchronization with the drive control signal.

Abstract translation: 控制具有半导体开关元件的开关电路的电路控制装置，具有主控制器，驱动信号输出部分和获取部分。 主控制器输出驱动控制信号。 驱动信号输出部分接收驱动控制信号并向开关元件输出驱动信号，开关元件基于驱动信号而起作用。 获取部分与驱动控制信号同步地获得关于开关电路的状态的电路信息。

公开(公告)号：US20220038027A1

公开(公告)日：2022-02-03

申请号：US17503828

申请日：2021-10-18

Applicant: DENSO CORPORATION

Inventor： Akira TOKUMASU ,  Yousuke WATANABE

IPC: H02M7/537 ,  H02M1/088

Abstract: An electric power converter includes a plurality of switch pairs respectively corresponding to a plurality of phases and each consisting of an upper-arm switch and a lower-arm switch. Each of the lower-arm switches of the switch pairs has a first terminal, a second terminal and a gate. The electric power converter further includes: a voltage generation circuit having its positive electrode side connected to the second terminal of only one of the lower-arm switches of the switch pairs; a negative-electrode-side electrical path connected to a negative electrode side of the voltage generation circuit; and at least one capacitor having a first end connected to the second terminal of one of the remainder of the lower-arm switches of the switch pairs, which is not connected with the voltage generation circuit, and a second end connected to the negative-electrode-side electrical path.