CA2250244A1 - Equipment and method for transmitting electric power - Google Patents

Equipment and method for transmitting electric power

Info

Publication number
CA2250244A1
CA2250244A1 CA002250244A CA2250244A CA2250244A1 CA 2250244 A1 CA2250244 A1 CA 2250244A1 CA 002250244 A CA002250244 A CA 002250244A CA 2250244 A CA2250244 A CA 2250244A CA 2250244 A1 CA2250244 A1 CA 2250244A1
Authority
CA
Canada
Prior art keywords
electric power
equipment
primary coil
secondary coil
transmitting electric
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.)
Granted
Application number
CA002250244A
Other languages
French (fr)
Other versions
CA2250244C (en
Inventor
Tamiji Nagai
Toshitaka Takei
Kuniharu Suzuki
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.)
Sony Corp
Original Assignee
Sony Corporation
Tamiji Nagai
Toshitaka Takei
Kuniharu Suzuki
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 Sony Corporation, Tamiji Nagai, Toshitaka Takei, Kuniharu Suzuki filed Critical Sony Corporation
Priority claimed from PCT/JP1998/000441 external-priority patent/WO1998034319A1/en
Publication of CA2250244A1 publication Critical patent/CA2250244A1/en
Application granted granted Critical
Publication of CA2250244C publication Critical patent/CA2250244C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • 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
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Near-Field Transmission Systems (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

In an electric power transmission device which transmits electric power between a primary coil and a secondary coil, a resonant frequency of the secondary coil side is arranged to become higher than a frequency of an oscillation signal of the primary coil side, so that a capacitance can be made small and the coupling coefficient of the primary coil and the secondary coil can be made high apparently and thus, efficiency of power transmission from the primary coil side to the secondary coil side can be improved.
CA002250244A 1997-02-03 1998-02-03 Equipment and method for transmitting electric power Expired - Fee Related CA2250244C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPP09-020739 1997-02-03
JP2073997 1997-02-03
PCT/JP1998/000441 WO1998034319A1 (en) 1997-02-03 1998-02-03 Equipment and method for transmitting electric power

Publications (2)

Publication Number Publication Date
CA2250244A1 true CA2250244A1 (en) 1998-08-06
CA2250244C CA2250244C (en) 2006-09-05

Family

ID=36968398

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002250244A Expired - Fee Related CA2250244C (en) 1997-02-03 1998-02-03 Equipment and method for transmitting electric power

Country Status (1)

Country Link
CA (1) CA2250244C (en)

Also Published As

Publication number Publication date
CA2250244C (en) 2006-09-05

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20160203