Title:
送電装置及び非接触給電システム
Document Type and Number:
Japanese Patent JP6592095
Kind Code:
B2
Abstract:
This power transmission apparatus transmits power to a power reception apparatus by means of a magnetic field resonance system by supplying an output AC voltage (V E ) of a class E amplifier (440) to a power-transmission side resonance circuit (TT). Before the transmission of power, the output AC voltage (V E ) of the class E amplifier (440) is divided, and a voltage obtained by the division is supplied to the power-transmission side resonance circuit (TT). A current amplitude detection value of a power-transmission side coil (T L ) at this time is obtained as an evaluation value, and whether to permit execution of power transmission is controlled on the basis of the evaluation value, through determination as to whether a foreign object is present or not.
Inventors:
Yoshihiro Ikuto
Takeshi Seike
Yoshii Yusuke
Takeshi Seike
Yoshii Yusuke
Application Number:
JP2017536678A
Publication Date:
October 16, 2019
Filing Date:
July 15, 2016
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
H02J50/60; H02J50/12; H02J50/80
Domestic Patent References:
| JP2015027239A | ||||
| JP2014519798A |
Foreign References:
| WO2015097807A1 | ||||
| WO2014011776A2 |
Attorney, Agent or Firm:
Sano patent office