Title:
誘導電力送信機
Document Type and Number:
Japanese Patent JP6600413
Kind Code:
B2
Abstract:
An inductive power transmitter comprising: a converter configured to generate at least two object detection signals at substantially different frequencies, at least one transmitting coil configured to generate a magnetic field based on the object detection signals, and a controller configured to determine or measure circuit parameter(s) in relation to the coil to determine the inductance of the coil at each of the frequencies, and determine whether and/or what kind of object is present depending on a change in inductance between each of the frequencies.
Inventors:
Chiang Liang
Application Number:
JP2018525471A
Publication Date:
October 30, 2019
Filing Date:
November 15, 2016
Export Citation:
Assignee:
Apple Inc.
International Classes:
H02J50/60; H02J50/12
Domestic Patent References:
| JP2015046990A | ||||
| JP2015136281A | ||||
| JP2014222994A |
Foreign References:
| WO2013179394A1 | ||||
| US20140091787 | ||||
| WO2014011776A2 |
Attorney, Agent or Firm:
Shinichiro Tanaka
Disciple Maru Ken
▲吉▼田 和彦
Fumiaki Otsuka
Takaki Nishijima
Takeo Nasu
Yoshinobu Iwasaki
Disciple Maru Ken
▲吉▼田 和彦
Fumiaki Otsuka
Takaki Nishijima
Takeo Nasu
Yoshinobu Iwasaki