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WO2009063746A1 - Power acquiring apparatus - Google Patents

Power acquiring apparatus Download PDF

Info

Publication number
WO2009063746A1
WO2009063746A1 PCT/JP2008/069574 JP2008069574W WO2009063746A1 WO 2009063746 A1 WO2009063746 A1 WO 2009063746A1 JP 2008069574 W JP2008069574 W JP 2008069574W WO 2009063746 A1 WO2009063746 A1 WO 2009063746A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
power acquiring
acquiring unit
turns
characteristic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/069574
Other languages
French (fr)
Japanese (ja)
Inventor
Mitsunori Morisaki
Junichi Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of WO2009063746A1 publication Critical patent/WO2009063746A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

There is a need to realize a power acquiring unit wherein the power acquired from an illuminating apparatus for which the power acquiring unit is provided can be always maximized without knowing beforehand the characteristic of the illuminating apparatus and that of a magnetic substance. A power acquiring apparatus determines a DC voltage for a current load and for a current number of turns, and selects, based on the determined DC voltage, a number of turns of the coil that can always achieve the maximum acquired power for the AC current flowing in a fluorescent lamp to which a power acquiring unit is provided and for the characteristic of a magnetic substance used in the power acquiring unit.
PCT/JP2008/069574 2007-11-13 2008-10-28 Power acquiring apparatus Ceased WO2009063746A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007294810 2007-11-13
JP2007-294810 2007-11-13

Publications (1)

Publication Number Publication Date
WO2009063746A1 true WO2009063746A1 (en) 2009-05-22

Family

ID=40638598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/069574 Ceased WO2009063746A1 (en) 2007-11-13 2008-10-28 Power acquiring apparatus

Country Status (1)

Country Link
WO (1) WO2009063746A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1189103A (en) * 1997-09-11 1999-03-30 Sanyo Electric Co Ltd Non-contact type charger
JP2004166449A (en) * 2002-11-15 2004-06-10 Riso Kagaku Corp Power supply device
JP2005110409A (en) * 2003-09-30 2005-04-21 Sharp Corp Power supply system
WO2007074849A1 (en) * 2005-12-28 2007-07-05 Nec Corporation Power supply circuit and illumination system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1189103A (en) * 1997-09-11 1999-03-30 Sanyo Electric Co Ltd Non-contact type charger
JP2004166449A (en) * 2002-11-15 2004-06-10 Riso Kagaku Corp Power supply device
JP2005110409A (en) * 2003-09-30 2005-04-21 Sharp Corp Power supply system
WO2007074849A1 (en) * 2005-12-28 2007-07-05 Nec Corporation Power supply circuit and illumination system

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