POWER TRANSMISSION APPARATUS AND POWER TRANSMISSION METHOD

Title:

POWER TRANSMISSION APPARATUS AND POWER TRANSMISSION METHOD

Document Type and Number:

WIPO Patent Application WO/2018/043981

Kind Code:

A1

Abstract:

Disclosed is a power transmission apparatus. The power transmission apparatus may comprise: a signal generator for generating a signal of a first frequency band for wireless charging; a power generation circuit for generating a modulation signal for modulating the signal of the first frequency band generated by the signal generator and amplifying transmission power of the signal of the first frequency band on the basis of a voltage supplied from the outside of the power transmission apparatus; a power transmission circuit for transmitting the amplified transmission power to a power reception apparatus through a first antenna; a second antenna for receiving information on a state of charge from the power reception apparatus through a second frequency band; and a control circuit for controlling the duty and frequency of the modulation signal on the basis of the state of charge. In addition, various embodiments recognized through the specification are possible.

Inventors:

KIM DONG ZO (KR)
KIM KYOUNG WON (KR)
PARK HAN SEOK (KR)
PARK SE HO (KR)
KIM YU SU (KR)
SONG KEUM SU (KR)
LEE JU HYANG (KR)
CHUNG HYUNG KOO (KR)
PARK KYUNG MIN (KR)
YUN YONG SANG (KR)

Application Number:

PCT/KR2017/009172

Publication Date:

March 08, 2018

Filing Date:

August 22, 2017

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SAMSUNG ELECTRONICS CO LTD (KR)

International Classes:

H02J50/20; H02J7/02; H02M1/14

Domestic Patent References:

WO2013172530A1

2013-11-21

Foreign References:

KR20120085498A	2012-08-01
KR20130016588A	2013-02-18
US20160031332A1	2016-02-04
US20140217955A1	2014-08-07

Other References: