Title:
LOW-HEAT WIRELESS POWER RECEPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/080517
Kind Code:
A1
Abstract:
The present invention relates to a low-heat type wireless power reception device comprising: a power reception coil for receiving a wireless power signal; an impedance matching unit for matching the impedance such that the power reception coil is resonant to the wireless power signal; a rectifying unit for rectifying the wireless power signal so as to convert the signal into direct current power; a power converting unit which includes a low-heat transformer unit having a first resistance value and a high-heat transformer unit having a second resistance value larger than the first resistance value, wherein the transformer units are connected in parallel with each other and supply output power of the rectifying unit to a load as charging power; and a reception control unit which controls the impedance matching of the impedance matching unit, and which supplies the charging power to the load by selectively turning on and off the low-heat transformer unit in a state where the high-heat transformer unit is continuously turned on.
Inventors:
JUNG CHUN-KIL (KR)
HWANG BYONG-UK (KR)
HWANG BYONG-UK (KR)
Application Number:
PCT/KR2014/011560
Publication Date:
June 04, 2015
Filing Date:
November 28, 2014
Export Citation:
Assignee:
HANRIM POSTECH CO LTD (KR)
International Classes:
H02J17/00
Foreign References:
| KR20120069349A | 2012-06-28 | |||
| JP2008178196A | 2008-07-31 | |||
| JP2012055109A | 2012-03-15 | |||
| JP2013192281A | 2013-09-26 | |||
| JP2013055856A | 2013-03-21 |
Attorney, Agent or Firm:
JEON, SOO-JIN (KR)
전수진 (KR)
전수진 (KR)
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