Title:
OVERVOLTAGE PROTECTION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2022/164163
Kind Code:
A1
Abstract:
An overvoltage protection circuit according to an embodiment of the present invention comprises: an input terminal to which power is input and an output terminal which outputs the power to a load; a first switch that is located between the input terminal and the output terminal and blocks the output to the load when turned off; a first Zener diode that is connected to the input terminal and allows current to flow therethrough upon detecting an overvoltage; a second switch that turns on when the first Zener diode allows current to flow therethrough; and a third switch that turns on when the first switch turns on, wherein the first switch is turned on by the power input to the input terminal, and turns off when the third switch turns on.
Inventors:
KWON GI HYOUNG (KR)
NA HO JUN (KR)
NA HO JUN (KR)
Application Number:
PCT/KR2022/001261
Publication Date:
August 04, 2022
Filing Date:
January 24, 2022
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H02H7/18; H02H3/20; H02J7/00
Foreign References:
| KR101501058B1 | 2015-03-12 | |||
| KR102186721B1 | 2020-12-04 | |||
| KR20130014970A | 2013-02-12 | |||
| US7751157B2 | 2010-07-06 | |||
| KR100956717B1 | 2010-05-06 |
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (KR)
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