公开(公告)号：US20170038784A1

公开(公告)日：2017-02-09

申请号：US15231472

申请日：2016-08-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Md. Abidur Rahman ,  Sualp Aras ,  Tri Cao Nguyen

IPC: G05F1/571 ,  G01R31/28

CPC classification number: G05F1/571 ,  G01R31/2827 ,  G05F1/569 ,  G05F1/573 ,  H02H3/006 ,  H02H3/08 ,  H02H3/087 ,  H02H3/20 ,  H02H9/02

Abstract: A circuit protective system. The system has: (i) an input for sensing an operational voltage responsive to a current flowing through a transistor; (ii) circuitry for applying a forced voltage at the input; (iii) voltage-to-current conversion circuitry for outputting a reference current in response to the forced voltage at the input; (iv) circuitry for providing a reference trim current in response to a trim indicator; and (v) comparison circuitry for outputting a limit signal in response to a comparison of the reference current and the reference trim current.

Abstract translation: 电路保护系统。 该系统具有：（i）用于感测响应于流过晶体管的电流的工作电压的输入; （ii）在输入端施加强制电压的电路; （iii）电压 - 电流转换电路，用于响应于输入处的强制电压输出参考电流; （iv）响应于修剪指示器提供参考修剪电流的电路; 和（v）用于响应于参考电流和参考调整电流的比较来输出限制信号的比较电路。

公开(公告)号：US10386876B2

公开(公告)日：2019-08-20

申请号：US15231472

申请日：2016-08-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Md. Abidur Rahman ,  Sualp Aras ,  Tri Cao Nguyen

IPC: G05F1/573 ,  G05F1/571 ,  G01R31/28 ,  H02H3/08 ,  H02H9/02 ,  H02H3/087 ,  G05F1/569 ,  H02H3/20 ,  H02H3/00

Abstract: A circuit protective system. The system has: (i) an input for sensing an operational voltage responsive to a current flowing through a transistor; (ii) circuitry for applying a forced voltage at the input; (iii) voltage-to-current conversion circuitry for outputting a reference current in response to the forced voltage at the input; (iv) circuitry for providing a reference trim current in response to a trim indicator; and (v) comparison circuitry for outputting a limit signal in response to a comparison of the reference current and the reference trim current.