Title:
POWER RECEPTION CIRCUIT, METHOD FOR CONTROLLING WIRELESS POWER RECEPTION DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JP2016127661
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power reception device of automatically determining the standard complied by a power transmission device.SOLUTION: A frequency detection part 420 determines a frequency of a signal to be received by a power reception coil 302 during a detection period before passage of a predetermined second one hour from the passage of the predetermined first one hour from a predetermined start timing. A modulation detection part 422 determines whether or not FSK (Frequency Shift Keying) is performed on signals received by a reception coil 302. A standard determination part 424 determines the frequency detected by the frequency determination part 420 and the standard complied by a wireless power transmission device in response to the presence or absence of FSK determined by the modulation detection part 422.SELECTED DRAWING: Figure 2
Inventors:
HE XUN
UCHIMOTO DAISUKE
NOZAWA TAKESHI
UCHIMOTO DAISUKE
NOZAWA TAKESHI
Application Number:
JP2014265336A
Publication Date:
July 11, 2016
Filing Date:
December 26, 2014
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H02J50/00
Domestic Patent References:
| JP2016504902A | 2016-02-12 | |||
| JP2015500622A | 2015-01-05 | |||
| JP2011199545A | 2011-10-06 | |||
| JP2014082864A | 2014-05-08 | |||
| JP2009271861A | 2009-11-19 |
Foreign References:
| WO2014092339A1 | 2014-06-19 | |||
| WO2013105776A1 | 2013-07-18 | |||
| US20140210406A1 | 2014-07-31 |
Attorney, Agent or Firm:
Sakaki Morishita
Masaki Taiki
Masaki Taiki
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