公开(公告)号：US09088158B2

公开(公告)日：2015-07-21

申请号：US14097990

申请日：2013-12-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kenneth J. Maggio ,  Umar Jameer Lyles ,  John H. Carpenter, Jr. ,  J. Randall Cooper ,  Vinod Mukundagiri

IPC: H02H3/00 ,  H02H3/18

CPC classification number: H02H3/18 ,  H02H3/003

Abstract: One embodiment includes a power system. The system includes a power switch device that is activated to provide an output voltage to a load in response to an input voltage. The power switch device includes a control terminal and a bulk connection. The system also includes a reverse voltage control circuit configured to passively couple the input voltage to one of the control terminal and the bulk connection in response to a reverse voltage condition in which an amplitude of the input voltage becomes negative. The system further includes an output shutoff circuit configured to passively couple the output voltage to a neutral-voltage rail during the reverse voltage condition.

Abstract translation: 一个实施例包括电力系统。 该系统包括电源开关装置，其被激活以响应于输入电压向负载提供输出电压。 电源开关装置包括控制端子和大容量连接。 该系统还包括反向电压控制电路，其被配置为响应于输入电压的幅度变为负的反向电压状态而被动地将输入电压耦合到控制端子和体连接中的一个。 该系统还包括一个输出切断电路，配置成在反向电压条件期间将输出电压无功耦合到中性电压轨。