公开(公告)号：US20190334430A1

公开(公告)日：2019-10-31

申请号：US16468220

申请日：2017-12-08

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Koji HIGASHIYAMA ,  Fumito KUSAMA

IPC: H02M1/34 ,  H02M3/335 ,  H02M7/5387

Abstract: When a magnitude of a voltage between a pair of first voltage points in a main circuit exceeds a first clamp value, a first clamp circuit absorbs electrical energy of the main circuit from the pair of first voltage points to clamp the voltage to the first clamp value. When a magnitude of a voltage between a pair of second voltage points in the main circuit falls below a second clamp value, a second clamp circuit injects electrical energy to the main circuit from the pair of second voltage points to clamp the voltage to the second clamp value. A voltage conversion circuit performs voltage conversion between a first clamp voltage defining a first clamp value and a second clamp voltage defining a second clamp value.

公开(公告)号：US20150137857A1

公开(公告)日：2015-05-21

申请号：US14530737

申请日：2014-11-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Fumito KUSAMA ,  Hajime HIDA ,  Shun KAZAMA ,  Kenji HANAMURA

IPC: H02M1/088 ,  H02M3/158 ,  H02M7/539 ,  H03K3/012

CPC classification number: H02M3/158 ,  H02M1/08 ,  H02M7/5387 ,  H02M2001/0054 ,  H03K17/04123 ,  H03K2217/0036 ,  H03K2217/009 ,  Y02B70/1491

Abstract: A driving apparatus includes a first potential line that applies a first potential, a second potential line that applies a second potential, a coil including a first terminal and a second second terminal that is connected to a control terminal of a switching element, a charging switch connected between the first potential line and the first terminal of the coil, a clamp switch provided between the first potential line and the second terminal of the coil, a reverse-flow blocking diode connected in series with the clamp switch between the first potential line and the second terminal of the coil, and a control circuit that controls the charging switch and the clamp switch.

Abstract translation: 驱动装置包括施加第一电位的第一电位线，施加第二电位的第二电位线，包括连接到开关元件的控制端子的第一端子和第二第二端子的线圈，充电开关 连接在第一电位线和线圈的第一端之间，设置在第一电位线和线圈的第二端之间的钳位开关，与第一电位线和第一电位线之间的钳位开关串联连接的反向阻流二极管 线圈的第二端子，以及控制充电开关和钳位开关的控制电路。