BIDIRECTIONAL SEMICONDUCTOR CIRCUIT BREAKER

WIPO Patent Application WO/2020/045889

A1

The present invention relates to a bidirectional semiconductor circuit breaker. The bidirectional semiconductor circuit breaker according to an embodiment of the present invention comprises: a primary circuit unit which is connected between a power source and a load and in which a first semiconductor switch and a second semiconductor switch are arranged in series; and a snubber circuit unit of which one end is connected to the front end of the first semiconductor switch and the other end is connected to the rear end of the second semiconductor switch, in parallel. In this case, the snubber circuit unit may comprise: a first circuit line in which a first capacitor and a first diode are arranged in series; a second circuit line which is connected in parallel to the first circuit line and in which a second capacitor and a second diode are arranged in series; and a third circuit line of which one end and the other end are connected to the first circuit line and the second circuit line, respectively, and in which a first resistor and a second resistor are arranged in series, and may thus provide a snubber circuit which is applicable to a bidirectional fault current and satisfies semiconductor protection and current restraining performance.

SIM JUNGWOOK (KR)
JANG SUHYEONG (KR)
KANG SUNGHEE (KR)
SONG WOONGHYEOB (KR)
SUL SEUNGKI (KR)
PARK DONGHOON (KR)
SHIN DONGHO (KR)

PCT/KR2019/010622

March 05, 2020

August 21, 2019

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LSIS CO LTD (KR)
SEOUL NAT UNIV R&DB FOUNDATION (KR)

H02H7/20; H03K17/687

US20140029152A1	2014-01-30
KR100434153B1	2004-06-04
US20030183838A1	2003-10-02
JP2017130391A	2017-07-27
US20140078622A1	2014-03-20

PARK, Jang-Won (KR)

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