Title:
VARIABLE WIRELESS POWER TRANSMISSION APPARATUS INCLUDING PLURALITY OF RESONATORS, AND CONTROL METHOD OF WIRELESS POWER TRANSMISSION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/085903
Kind Code:
A1
Abstract:
The present disclosure provides a variable wireless power transmission apparatus including a plurality of resonators and a control method of the wireless power transmission apparatus. The wireless power transmission apparatus of the present disclosure comprises: a housing; a power amplifier disposed inside the housing; a first resonator which includes at least one coil and is fixed to a first portion of the housing; a second resonator which includes at least one coil and is disposed to be rotatable in a second portion of the housing to form a variable angle with the first resonator; a sensor that senses a change in shape according to rotation of the second resonator; a controller that identifies a change in shape of the first resonator and the second resonator on the basis of a signal sensed by the sensor, identifies whether or not there is impedance matching for the first resonator or the second resonator, on the basis of the identifying of the change in shape, and generates a control signal for impedance matching for the first resonator or the second resonator, on the basis of identifying impedance mismatching; and a matching circuit which includes at least one coil and at least one capacitor and which is electrically connected between the first resonator and the power amplifier and matches impedance on the basis of the control signal received from the controller.
Inventors:
PARK JAEHYUN (KR)
GU BEOMWOO (KR)
PARK JAESEOK (KR)
BYUN KANGHO (KR)
SHIN JAESUN (KR)
YEO SUNGKU (KR)
RYU YOUNGHO (KR)
GU BEOMWOO (KR)
PARK JAESEOK (KR)
BYUN KANGHO (KR)
SHIN JAESUN (KR)
YEO SUNGKU (KR)
RYU YOUNGHO (KR)
Application Number:
PCT/KR2022/017975
Publication Date:
May 19, 2023
Filing Date:
November 15, 2022
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H02J50/12; H01F27/36; H02J50/00; H02J50/70; H03F3/45; H03H7/38
Domestic Patent References:
| WO2020185877A1 | 2020-09-17 |
Foreign References:
| KR101973148B1 | 2019-08-26 | |||
| KR20120019033A | 2012-03-06 | |||
| US20130159956A1 | 2013-06-20 | |||
| KR20190015861A | 2019-02-15 |
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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