公开(公告)号：US09054517B1

公开(公告)日：2015-06-09

申请号：US13829532

申请日：2013-03-14

申请人： S3C, Inc.

发明人： Zhineng Zhu

IPC分类号： H02H3/00 ,  H02H9/04

CPC分类号： H02H9/04 ,  H02H11/003 ,  H02H11/006

摘要： An application specific integrated circuit (ASIC) is disclosed. The ASIC comprises an internal circuit coupled between a power line and ground and an output buffer coupled to the internal circuit; wherein the output buffer provides an output signal. The ASIC includes a fault detection circuit coupled between the power line and ground; and a first protection block configured to receive a first control signal from the fault detection circuit. The first switch is coupled to the power line, the output buffer and the internal circuit. The first protection block prevents current from flowing between the power line and ground when a fault condition is detected. The ASIC further includes a second protection block configured to receive a second control signal from the fault detection circuit, wherein the second protection block is coupled to the output signal, the power line and ground. The second protection block prevents current from flowing between the power line and ground or the power line and the output line when a fault condition is detected.

摘要翻译： 公开了专用集成电路（ASIC）。 ASIC包括耦合在电力线和地之间的内部电路和耦合到内部电路的输出缓冲器; 其中所述输出缓冲器提供输出信号。 ASIC包括耦合在电力线和地之间的故障检测电路; 以及被配置为从故障检测电路接收第一控制信号的第一保护块。 第一个开关耦合到电源线，输出缓冲器和内部电路。 当检测到故障条件时，第一个保护块防止电流在电源线和地之间流动。 ASIC还包括被配置为从故障检测电路接收第二控制信号的第二保护块，其中第二保护块耦合到输出信号，电力线和地。 当检测到故障条件时，第二保护模块防止电流在电源线与地之间或电源线和输出线之间流动。