公开(公告)号：US09614366B2

公开(公告)日：2017-04-04

申请号：US15082882

申请日：2016-03-28

申请人： Cypress Semiconductor Corporation

发明人： Tomokazu Kojima

IPC分类号： H02H9/04 ,  H02H9/00

CPC分类号： H02H9/001 ,  H02H9/04 ,  H02H9/041

摘要： Described herein are a protecting circuit and an integrated circuit capable of discharging electric current sufficient for an input voltage having a large time variation while suppressing power consumption. The protecting circuit includes: a first shunt circuit including a first shunt pathway connected to an input terminal, the first shunt circuit being configured to have a relatively low discharge capacity of the first shunt pathway and a relatively long response time; a second shunt circuit including a second shunt pathway connected to the input terminal, the second shunt circuit being configured to have a relatively high discharge capacity of the second shunt pathway and a relatively short response time; and a control circuit configured to enable the second shunt pathway to discharge based on a time variation of an input voltage at the input terminal.

公开(公告)号：US20160336738A1

公开(公告)日：2016-11-17

申请号：US15082882

申请日：2016-03-28

申请人： Cypress Semiconductor Corporation

发明人： Tomokazu Kojima

IPC分类号： H02H9/00 ,  H02H9/04

CPC分类号： H02H9/001 ,  H02H9/04 ,  H02H9/041

摘要： Described herein are a protecting circuit and an integrated circuit capable of discharging electric current sufficient for an input voltage having a large time variation while suppressing power consumption. The protecting circuit includes: a first shunt circuit including a first shunt pathway connected to an input terminal, the first shunt circuit being configured to have a relatively low discharge capacity of the first shunt pathway and a relatively long response time; a second shunt circuit including a second shunt pathway connected to the input terminal, the second shunt circuit being configured to have a relatively high discharge capacity of the second shunt pathway and a relatively short response time; and a control circuit configured to enable the second shunt pathway to discharge based on a time variation of an input voltage at the input terminal.

摘要翻译： 这里描述了一种保护电路和集成电路，其能够在抑制功耗的同时，对具有大的时间变化的输入电压放电足够的电流。 保护电路包括：第一分流电路，包括连接到输入端的第一分流路径，第一分流电路被配置为具有第一分流路径的相对低的放电容量和相对较长的响应时间; 第二分流电路，包括连接到输入端子的第二分流路径，第二分流电路被配置为具有相对高的第二分流路径的放电容量和相对短的响应时间; 以及控制电路，被配置为使得所述第二分流路径能够基于所述输入端子处的输入电压的时间变化而放电。