Title:
ELECTRONIC DEVICE FOR CONTROLLING PHASE DIFFERENCE OF POWER PROVIDED TO RECTIFIER, AND METHOD FOR CONTROLLING SAME
Document Type and Number:
WIPO Patent Application WO/2022/158693
Kind Code:
A1
Abstract:
According to various embodiments, an electronic device may comprise: a resonance circuit including a battery, a coil, and a capacitor, and configured to receive power wirelessly; a rectifying circuit including multiple transistors, and configured to rectify alternating current power provided from the resonance circuit into direct current power; and a control circuit, wherein the control circuit is configured to: identify a difference between the phase of voltage and the phase of current of the alternating current power provided from the resonance circuit during wireless reception of power from an external electronic device; and perform impedance matching by controlling the bias voltage of at least one of the multiple transistors on the basis that the difference between the phase of voltage and the phase of current satisfies a designated condition.
Inventors:
LEE CHONGMIN (KR)
YEO SUNGKU (KR)
BYUN KANGHO (KR)
SHIN JAESUN (KR)
LEE JEONGMAN (KR)
HAN HYOSEOK (KR)
YEO SUNGKU (KR)
BYUN KANGHO (KR)
SHIN JAESUN (KR)
LEE JEONGMAN (KR)
HAN HYOSEOK (KR)
Application Number:
PCT/KR2021/017346
Publication Date:
July 28, 2022
Filing Date:
November 24, 2021
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H02J50/12; H02M1/00; H02M7/04; H03H11/28
Domestic Patent References:
| WO2015127303A1 | 2015-08-27 |
Foreign References:
| KR20190069982A | 2019-06-20 | |||
| KR20200059655A | 2020-05-29 | |||
| JP2016116365A | 2016-06-23 | |||
| JP2014036484A | 2014-02-24 |
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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