Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Charger inductively coupled to cell or battery
Reexamination Certificate
2009-05-01
2011-12-27
Riley, Shawn (Department: 2838)
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Charger inductively coupled to cell or battery
C455S573000
Reexamination Certificate
active
08084991
ABSTRACT:
A power reception device includes a first resistance element having one end electrically connected to one end of a secondary coil which is able to be electromagnetically coupled to a primary coil of a power transmission devices a second resistance element having one end electrically connected to the other end of the first resistance element and having the other end supplied with a reference voltage, a power reception control device that obtains a frequency of an alternating current (AC) voltage induced on the secondary coil based on a voltage division signal output from the other end of the first resistance element and varies a magnitude of a load of the power reception device in accordance with the frequency, and a variable resistance element that has resistance varied in accordance with temperature and is connected to the first resistance element or the second resistance element in parallel.
REFERENCES:
patent: 5512810 (1996-04-01), Hansen et al.
patent: 8000800 (2011-08-01), Takeda et al.
patent: A-11-164497 (1999-06-01), None
patent: A-2006-060909 (2006-03-01), None
Kamijo Takahiro
Okada Hirofumi
Yoda Kentaro
Oliff & Berridg,e PLC
Riley Shawn
Seiko Epson Corporation
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