公开(公告)号：US11271392B2

公开(公告)日：2022-03-08

申请号：US16558867

申请日：2019-09-03

Applicant: Texas Instruments Incorporated

Inventor： Ann Margaret Concannon ,  Vishwanath Joshi ,  Antonio Gallerano ,  Zhao Gao ,  Yanqing Li

IPC: H02H9/04 ,  H03H11/02

Abstract: A protection circuit for a signal processor, a method of operating the protection circuit, and a method of forming the protection circuit. In one example, the protection circuit is couplable to a signal port and a first power bus for the signal processor. The protection circuit includes a first diode string couplable across the signal port and the first power bus. The first diode string includes a first diode and a second diode coupled in series in a same polarity sense. The protection circuit also includes a third diode coupled in parallel with one of the first diode and the second diode in an opposite polarity sense.

公开(公告)号：US20200235571A1

公开(公告)日：2020-07-23

申请号：US16558867

申请日：2019-09-03

Applicant: Texas Instruments Incorporated

Inventor： Ann Margaret Concannon ,  Vishwanath Joshi ,  Antonio Gallerano ,  Zhao Gao ,  Yanqing Li

IPC: H02H9/04 ,  H03H11/02

Abstract: A protection circuit for a signal processor, a method of operating the protection circuit, and a method of forming the protection circuit. In one example, the protection circuit is couplable to a signal port and a first power bus for the signal processor. The protection circuit includes a first diode string couplable across the signal port and the first power bus. The first diode string includes a first diode and a second diode coupled in series in a same polarity sense. The protection circuit also includes a third diode coupled in parallel with one of the first diode and the second diode in an opposite polarity sense.