Title:
NON-CONTACTING FEEDING DEVICE
Document Type and Number:
Japanese Patent JP3522456
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the reliability of a feeding device for prolonging the service life of a smoothing capacitor connected in parallel with the load of a moving body, by respectively providing ripple reducing means between resonant capacitors which resonate with a plurality of pickup coils magnetically coupled with an induction line or induction coil and the smoothing capacitor.
SOLUTION: A ripple reducing means is interposed between pickup coils 32A and 32B magnetically coupled with an induction line 20 and a smoothing capacitor 35 connected in parallel with the load 36 of a moving body. The ripple reducing means is composed of resonant capacitors 33A and 33B which respectively resonate with the coils 32A and 32B and rectifying diodes 34A and 34B. The charging time of the capacitor 35 is prolonged and the charging peak current to the capacitor is made smaller, by changing the capacitance between the capacitors 33A and 33E and, at the same time, a ripple current is made smaller in cooperation with the rectifying actions of the diodes 34A and 34B.
Inventors:
Yamamoto, Harumasa
Application Number:
JP21670196A
Publication Date:
April 26, 2004
Filing Date:
July 29, 1996
Export Citation:
Assignee:
HITACHI KIDEN KOGYO LTD
International Classes:
B60L5/00; H02M7/06; (IPC1-7): H02J17/00; B60L5/00; H02M7/06
Attorney, Agent or Firm:
大西 孝治 （外１名）
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