STATIC TRANSFER SWITCH, AND UPS MODULE TO WHICH STATIC TRANSFER SWITCH IS APPLIED

WIPO Patent Application WO/2021/085759

A1

The present invention relates to an uninterruptible power supply (UPS) system and, more specifically, to a static transfer switch (STS) that can be applied to a UPS module, the static transfer switch comprising: one semiconductor rectifying element connected to either the anode terminal or the cathode terminal of a direct current power source; a bypass circuit for connecting the input terminal and the output terminal of the semiconductor rectifying element so as to bypass the semiconductor rectifying element; a breaker for opening or closing the bypass circuit; and a switch including a control unit, which controls the semiconductor rectifying element so as to conduct current when a preset conduction signal is received, controls the breaker so as to close the bypass circuit, and, when the bypass circuit is closed by the breaker, controls the semiconductor rectifying element so as to stop the conduction of current.

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JP2007038735	BATTERY BACK-UP POWER SOURCE DEVICE WITH SWITCH FUNCTION

LEE JIHEON (KR)
YUN DONGJIN (KR)
KIM DOHYUN (KR)
KIM JIHONG (KR)
PARK MINJUN (KR)
DO WONSEOK (KR)

PCT/KR2020/003679

May 06, 2021

March 18, 2020

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LS ELECTRIC CO LTD (KR)

H02J9/06; H02M7/06

KR20080104102A	2008-12-01
US20050184592A1	2005-08-25
JP2009148008A	2009-07-02
JP2005354781A	2005-12-22
KR20180083931A	2018-07-23

PARK, Jang-Won (KR)

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