Title:
The dynamic resonance consistency circuit for wireless electric power receivers
Document Type and Number:
Japanese Patent JP6067704
Kind Code:
B2
Abstract:
A resonant matching circuit (310) for matching a resonant frequency of a wireless power transfer system to a frequency of a power signal comprises a switch (311) connected in parallel with a resonant element (302) of the wireless power transfer system; and a controller (312) connected to the switch (311) and configured to detect a zero-voltage level crossing of a signal flowing through the resonant element (302) and to close the switch (311) for a predefined amount of time upon detection of the zero-voltage level crossing, wherein closing the switch (311) for the predefined amount of time adds any one of an inductive value and a capacitive value to the resonant frequency of a wireless power transfer system.
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Inventors:
Wofenschmid Everhard
Sempel Adrianis
Bang Gore Dave Willem
Bandar Zenden Henrix Theodorus
Sempel Adrianis
Bang Gore Dave Willem
Bandar Zenden Henrix Theodorus
Application Number:
JP2014525529A
Publication Date:
January 25, 2017
Filing Date:
August 06, 2012
Export Citation:
Assignee:
Philips Lighting Holding BV
International Classes:
H02J50/05; H02J50/12; H03J1/00
Domestic Patent References:
| JP2007501600A | ||||
| JP4161071A | ||||
| JP2003509991A | ||||
| JP2009296857A | ||||
| JP2011114985A | ||||
| JP2005151075A |
Foreign References:
| WO2010030195A1 |
Attorney, Agent or Firm:
Patent Services Corporation m&s Partners