AUTOMATIC VOLTAGE REGULATOR HAVING ALTERNATING CURRENT SWITCH

WIPO Patent Application WO/2018/217039

A1

The present invention relates to a technology for implementing an automatic voltage regulator which is simple in structure and requires low cost by using two alternating current switches, and enabling highly precise control of an output voltage of the automatic voltage regulator. The present invention comprises: an LC filter for smoothing an alternating current voltage input in a continuous pulse form, and generating and outputting an alternating current voltage which has the same form as that of an input voltage but has a lower level than the input voltage; a first alternating current switch for switching the input voltage according to a first control signal, and generating the alternating current voltage input in the continuous pulse form, so as to supply the generated alternating current voltage to the LC filter; and a second alternating current switch for performing switching according to a second control signal in each period in which the first alternating current switch is turned off, and providing a closed loop to gradually reduce current flowing in an inductor of the LC filter.

JP3998394	Switching regulator
WO/2023/034223	MODULATION OF SWITCHING INTERVALS OVER A LINE CYCLE IN A MULTILEVEL INVERTER
WO/2018/057112	DEVICE AND METHOD TO STABILIZE A SUPPLY VOLTAGE

PARK SI WOO (KR)
CHANG CHUL HO (KR)
CHOI YOUNG GYUN (KR)
JO CHAN YONG (KR)

PCT/KR2018/005917

November 29, 2018

May 24, 2018

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PARK SI WOO (KR)
TAEIL SYSTEM CO LTD (KR)

H02M3/156; H02M1/00; H02M1/32

KR101341086B1	2013-12-12
KR101230017B1	2013-02-05
JP2010268583A	2010-11-25
KR20130062695A	2013-06-13
KR20140094328A	2014-07-30

LEE, Cheol Hee (KR)

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