公开(公告)号：US20140268940A1

公开(公告)日：2014-09-18

申请号：US14211048

申请日：2014-03-14

Applicant: ABB Oy

Inventor： Tero VIITANEN ,  Mikko SAARINEN

IPC: H02M7/797

CPC classification number: H02M7/797 ,  H02H7/1225 ,  H02M1/32 ,  H02M7/487 ,  H02M7/538 ,  H02M7/5387 ,  H02M7/53873 ,  H02M7/5395

Abstract: Exemplary embodiments are directed to a method for controlling a switching branch of a three-level converter to enter a stop state. The switching branch including a first semiconductor switch and a second semiconductor switch, a first diode and a second diode, a third semiconductor switch and a fourth semiconductor switch, a third diode, and a fourth diode, a fifth semiconductor switch and a sixth semiconductor switch, a fifth diode, and a sixth diode, and a manner of controlling the semiconductor switches. When the switching branch is set to enter a stop state, current flowing in a main circuit of the switching branch is transferred in a controlled manner to diodes that conduct the current, when all the semiconductor switches of the main circuit of the converter are turned OFF.

Abstract translation: 示例性实施例涉及一种用于控制三电平转换器的开关支路进入停止状态的方法。 所述开关支路包括第一半导体开关和第二半导体开关，第一二极管和第二二极管，第三半导体开关和第四半导体开关，第三二极管和第四二极管，第五半导体开关和第六半导体开关 ，第五二极管和第六二极管，以及控制半导体开关的方式。 当开关分支设定为进入停止状态时，当开关分支的主电路中的所有半导体开关全部转换为OFF时，将流过开关支路的主电路的电流以受控的方式传送到导通电流的二极管 。

公开(公告)号：US20140063667A1

公开(公告)日：2014-03-06

申请号：US14020533

申请日：2013-09-06

Applicant: ABB OY

Inventor： Mikko SAARINEN

IPC: H01L23/62

CPC classification number: H01L23/62 ,  H01L2924/0002 ,  H03K17/0828 ,  H03K2217/0081 ,  H01L2924/00

Abstract: Exemplary embodiments are directed to a method and arrangement for detecting an overvoltage of a semiconductor switch. The arrangement including a first semiconductor switch and a driver unit controlling the switch. An overvoltage is detected over the semiconductor switch, and a voltage is adjusted at a supply voltage input of the driver unit on the basis of the overvoltage.

Abstract translation: 示例性实施例涉及用于检测半导体开关的过电压的方法和装置。 该装置包括第一半导体开关和控制开关的驱动器单元。 在半导体开关上检测出过电压，并且基于过电压将电压调节到驱动器单元的电源电压输入。