公开(公告)号：US20130336023A1

公开(公告)日：2013-12-19

申请号：US13719229

申请日：2012-12-19

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Katsutoshi YAMANAKA

IPC: H02M5/458

CPC classification number: H02M5/458 ,  H02M5/297 ,  H02M2001/0064 ,  H02M2001/344 ,  H02M2001/346 ,  H02M2001/348 ,  H02M2005/2932 ,  H02M2007/53876 ,  Y02B70/1491

Abstract: A power conversion device according to embodiments includes a plurality of switch groups, a plurality of inductors, and a snubber circuit. The switch groups are respectively provided for input phases and each of the switch groups has a plurality of one-way switches that connects the corresponding input phase and output phases. The plurality of inductors are respectively connected between the input phases and the switch groups, and are coupled to one another so that current flowing through the one-way switch of one switch group moves to and continues to flow through the turned-on one-way switch of the other switch group when the one-way switch of the one switch group is turned off. The snubber circuit clamps a voltage based on the maximum voltage occurring on the plurality of inductors to a predetermined value.

Abstract translation: 根据实施例的电力转换装置包括多个开关组，多个电感器和缓冲电路。 开关组分别设置用于输入相位，并且每个开关组具有连接相应的输入相位和输出相位的多个单向开关。 多个电感器分别连接在输入相和开关组之间，并且彼此耦合，使得流过一个开关组的单向开关的电流移动并继续流过导通单向 当一个开关组的单向开关关闭时，另一个开关组的开关。 缓冲电路基于多个电感器上发生的最大电压将电压钳位到预定值。