DIRECT CURRENT/ DIRECT CURRENT CONVERTER FOR REDUCING SWITCHING LOSS, WIRELESS POWER RECEIVER INCLUDING DIRECT CURRENT/ DIRECT CURRENT CONVERTER

WIPO Patent Application WO/2012/086975

A2

Provided are a direct current/direct current (DC/DC) converter and a wireless power receiver including the DC/DC converter. In one embodiment, a direct current-direct current (DC/DC) converter for use in a wireless power receiver, the DC/DC converter may include: a voltage converting unit configured to convert, DC voltage, to a predetermined DC voltage; a turn-on switch configured to control current flow of the DC voltage through the voltage converting unit; and a switching controller configured to: detect an amount of current of the voltage converting unit based on a first turn-on period of the turn-on switch, set a second turn-on period of the turn-on switch based on the detected amount of current, and control the turn-on switch based on the second turn-on period.

KIM DONG ZO (KR)
HONG YOUNG TACK (KR)
MOON YOUNG JIN (KR)
KWON SANG WOOK (KR)
PARK YUN KWON (KR)
YOO CHANG SIK (KR)
PARK EUN SEOK (KR)
KIM KI YOUNG (KR)
RYU YOUNG HO (KR)
KIM NAM YUN (KR)
CHOI JIN SUNG (KR)
ROH YONG SEONG (KR)

PCT/KR2011/009767

June 28, 2012

December 19, 2011

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SAMSUNG ELECTRONICS CO LTD (KR)
IUCF HYU (KR)

H02J17/00; G05F1/10; H02M3/155

KR20100110356A	2010-10-12
JP2007151248A	2007-06-14
KR20070093635A	2007-09-19
JP2007202376A	2007-08-09
JP2007318914A	2007-12-06

None
See also references of EP 2656478A4

MUHANN PATENT & LAW FIRM (6th Floor Myeonglim Building,51-8 Nonhyeon-dong, Gangnam-gu, Seoul 135-814, KR)

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