公开(公告)号：US20140176105A1

公开(公告)日：2014-06-26

申请号：US14096434

申请日：2013-12-04

Applicant: Denso Corporation

Inventor： Hiroshi YAMAGUCHI ,  Toru ITABASHI ,  Kenichi YASHIRO ,  Yuki MIKAMI

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M1/08 ,  H02M2001/0029

Abstract: An electronic control device includes a turn-on restriction section capable of performing a restriction operation to restrict a turn-on speed of a switching element. The turn-on restriction section includes a comparator. The comparator receives a voltage of a main terminal of the switching element connected to a smoothing circuit and determines whether the voltage of the main terminal of the switching element reaches a threshold voltage. The turn-on restriction section performs the restriction operation for a predetermined time from a start of a turn-on period in which the switching element is turned on. The turn-on restriction section stops the restriction operation after the predetermined time has elapsed. The predetermined time is set to a time from the start of the turn-on period until the voltage of the main terminal of the switching element reaches the threshold voltage.

Abstract translation: 电子控制装置包括能够执行限制操作以限制开关元件的接通速度的开启限制部。 导通限制部分包括比较器。 比较器接收连接到平滑电路的开关元件的主端子的电压，并确定开关元件的主端子的电压是否达到阈值电压。 开启限制部分从开关元件导通的接通时段开始执行预定时间的限制操作。 接通限制部在经过规定时间之后停止限制动作。 预定时间被设定为从导通周期开始到开关元件的主端子的电压达到阈值电压的时间。