Title:
SWITCHING ELEMENT OPERATION DETECTION DEVICE AND PHOTOVOLTAIC POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/231341
Kind Code:
A1
Abstract:
A switching element operation detection device according to an embodiment of the present invention comprises: a first sensing unit for sensing current flowing through a driving circuit for driving a first switching element; a second sensing unit for sensing current flowing through a driving circuit for driving a second switching element; a first amplification unit for amplifying current sensed by the first sensing unit; a second amplification unit for amplifying current sensed by the second sensing unit; a first hysteresis unit for outputting a high signal or a low signal according to an output of the first amplifier; a second hysteresis unit for outputting a high signal or a low signal according to an output of the second amplifier; and a switching element operation detection signal output unit for outputting a switching element operation detection signal when both an output of the first hysteresis unit and an output of the second hysteresis unit are high signals.
Inventors:
YOON DONG KEUN (KR)
JANG JU YOUNG (KR)
JEONG YOUNG WOO (KR)
JANG JU YOUNG (KR)
JEONG YOUNG WOO (KR)
Application Number:
PCT/KR2022/006095
Publication Date:
November 03, 2022
Filing Date:
April 28, 2022
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
G01R31/327; G01R15/04; G01R19/00; H02S40/32
Foreign References:
| JP2009260831A | 2009-11-05 | |||
| KR101059355B1 | 2011-08-24 | |||
| KR20210041282A | 2021-04-15 | |||
| KR101410508B1 | 2014-06-24 | |||
| JP2013172616A | 2013-09-02 |
Attorney, Agent or Firm:
JIN, Cheon Woong et al. (KR)
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