Invention Grant
- Patent Title: High voltage driving electronic circuit arrangement having a short circuit protection, corresponding apparatus and method
-
Application No.: US15944377Application Date: 2018-04-03
-
Publication No.: US11264982B2Publication Date: 2022-03-01
- Inventor: Marco Terenzi , Davide Ugo Ghisu
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group LLP
- Priority: IT102017000042107 20170414
- Main IPC: H03K17/082
- IPC: H03K17/082 ; H03K19/003 ; B06B1/02

Abstract:
A high voltage driving circuit for driving a load receives a low voltage input signal and generates a high voltage output signal. A short circuit protection circuit including a first electronic switch operated by the low voltage input signal and a second electronic switch operated by a low voltage signal obtained by a voltage division of the output high voltage signal. The first electronic switch causing a first pull-up current to be sent to a capacitive element whose voltage controls an input of a threshold comparator. A second electronic switch causes a second pull-down current to be drawn from the capacitive element whose voltage controls the input of the threshold comparator. A short circuit detection signal is generated at an output of said threshold comparator, indicating a short circuit and capable of inhibiting operation of the driving circuit.
Public/Granted literature
- US20180302080A1 HIGH VOLTAGE DRIVING ELECTRONIC CIRCUIT ARRANGEMENT, CORRESPONDING APPARATUS AND METHOD Public/Granted day:2018-10-18
Information query
IPC分类: