Title:
ELECTROSTATIC PROTECTION CIRCUIT, POWER MANAGEMENT CHIP AND DISPLAY TERMINAL
Document Type and Number:
WIPO Patent Application WO/2023/108670
Kind Code:
A1
Abstract:
An electrostatic protection circuit, a power management chip and a display terminal. The electrostatic protection circuit comprises a level shifter (10) and a power management integrated circuit (20). The electrostatic protection circuit further comprises a clamping module (30), wherein an input end (301) of the clamping module (30) receives an electrostatic detection signal (LS_FLT), and an output end (302) of the clamping module (30) outputs a fault detection signal (PMIC_FLT). When the electrostatic detection signal (LS_FLT) jumps from a low level to a high level, the output end (302) of the clamping module (30) continuously outputs a high level until the power management integrated circuit (20) stops operating.
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Inventors:
LIU FANGYUN (CN)
Application Number:
PCT/CN2021/139544
Publication Date:
June 22, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD (CN)
International Classes:
G09G3/36; G09G3/3208; H02H9/04
Foreign References:
| US20170162092A1 | 2017-06-08 | |||
| CN106712753A | 2017-05-24 | |||
| CN211856719U | 2020-11-03 | |||
| CN1522090A | 2004-08-18 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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