Title:
POWER SUPPLY SYSTEM, AND MOVABLE BODY AND FIXED BODY THEREFOR
Document Type and Number:
WIPO Patent Application WO/2011/043074
Kind Code:
A1
Abstract:
Provided is a power supplying system, wherein a fixed body may be made more compact, and power may be supplied by induction, without the power frequency thereof being limited. The power supplying system has power supplied to a load (53) from the fixed body (30) via a movable body (50), and the fixed body (30) comprises an AC power supply (31), a first power-transmitting electrode (32), and a second power-transmitting electrode (33), and the movable body (50) comprises a first power-receiving electrode (51), and a second power-receiving electrode (52). A first coupling capacitor (60) and a second coupling capacitor (61) are configured by positioning either the first power-transmitting electrode (32) or the second power-transmitting electrode (33) so as to face either the first power-receiving electrode (51) or the second power-receiving electrode (52). Either the fixed body or the movable body comprises an active capacitor (34) and an active capacitor control unit (40). A negative capacitance is generated upon the active capacitor (34) by the active capacitor control unit (40) such that the AC impedance at the power-transmitting frequency of the combined capacitance of the first coupling capacitor (60), the second coupling capacitor (61), and the active capacitor (34), is sufficiently smaller than the AC impedance at the power-transmitting frequency of the combined capacitance of the first coupling capacitor (60) and the second coupling capacitor (61).
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Inventors:
FUNATO, Hirohito (350 Mine-machi Utsunomiya-sh, Tochigi 05, 〒3218505, JP)
船渡 寛人 (〒05 栃木県宇都宮市峰町３５０番地国立大学法人宇都宮大学内 Tochigi, 〒3218505, JP)
船渡 寛人 (〒05 栃木県宇都宮市峰町３５０番地国立大学法人宇都宮大学内 Tochigi, 〒3218505, JP)
Application Number:
JP2010/005999
Publication Date:
April 14, 2011
Filing Date:
October 06, 2010
Export Citation:
Assignee:
TAKENAKA CORPORATION (1-13, Hommachi 4-chome Chuo-ku, Osaka-sh, Osaka 53, 〒5410053, JP)
株式会社竹中工務店 (〒53 大阪府大阪市中央区本町４丁目１番１３号 Osaka, 〒5410053, JP)
UTSUNOMIYA UNIVERSITY (350 Mine-machi, Utsunomiya-shi Tochigi, 05, 〒3218505, JP)
国立大学法人宇都宮大学 (〒05 栃木県宇都宮市峰町３５０番地 Tochigi, 〒3218505, JP)
株式会社竹中工務店 (〒53 大阪府大阪市中央区本町４丁目１番１３号 Osaka, 〒5410053, JP)
UTSUNOMIYA UNIVERSITY (350 Mine-machi, Utsunomiya-shi Tochigi, 05, 〒3218505, JP)
国立大学法人宇都宮大学 (〒05 栃木県宇都宮市峰町３５０番地 Tochigi, 〒3218505, JP)
International Classes:
H02J17/00; H01G2/00
Attorney, Agent or Firm:
SAITO, Tatsuya (Inspire Patent and Trademark Attorneys, Akasaka Abitasion Building 6F 1-3-5, Akasaka, Minato-k, Tokyo 52, 〒1070052, JP)
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