Title:
ENERGY TRANSMISSION APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO/2012/044103
Kind Code:
A2
Abstract:
An apparatus and method for wirelessly transmitting electromagnetic energy are provided. The apparatus includes a power source, a transmission unit, and a measurement unit. The power source supplies a power according to a certain frequency. The transmission unit receives the power to wirelessly transmit the received power through self resonance. The measurement unit measures a phase difference between a voltage and current of the transmission unit. The certain frequency is controlled according to the phase difference. Accordingly, the apparatus and method control only the frequency of the power supply when a resonance frequency is changed by the change of an ambient environment, thus enhancing energy transmission efficiency.
Inventors:
BAE SU HO (KR)
LEE KI MIN (KR)
LEE KI MIN (KR)
Application Number:
PCT/KR2011/007216
Publication Date:
April 05, 2012
Filing Date:
September 30, 2011
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
BAE SU HO (KR)
LEE KI MIN (KR)
BAE SU HO (KR)
LEE KI MIN (KR)
International Classes:
H02J17/00; H04B5/02
Domestic Patent References:
| WO2009116025A2 | 2009-09-24 |
Foreign References:
| JP2010136464A | 2010-06-17 | |||
| JP2009524398A | 2009-06-25 | |||
| KR20100082030A | 2010-07-15 |
Attorney, Agent or Firm:
SEO, Kyo Jun (832-41Yeoksam-dong, Gangnam-gu, Seoul 135-080, KR)
Download PDF:
Claims: