Title:
CONSTANT VOLTAGE INDUCTION FEEDING DEVICE
Document Type and Number:
Japanese Patent JP3442937
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To automatically restrict a supply voltage even though an on-land moving body gas a light load or no load, by providing a pickup coil turned around an iron core of the on-land moving body and connecting an over saturable reactor to its pickup coil in parallel.
SOLUTION: A power supply line 20 laid along a running way is used as a primary side, a pickup coil 34 wound around an iron core 32 provided on an on-land moving body 30 is used as a secondary side, and power supply is performed to a pickup coil 34 by the electromagnetic induction. At this time, a resonance capacitor 38 and a saturable reactor 40 are connected in parallel to the pickup coil 34. A self-inductance of this saturable reactor 40 is determined in such a manner that a voltage occurs at both the ends of the pick-up coil 34, when a load 37 is turned off, becomes a voltage which will not destroy semiconductor elements used in a rectifying circuit 35 and a constant voltage output device 36. By this, the feeding voltage can be automatically restricted even if the on-land moving body 30 becomes a light load or no load.
Inventors:
Shohei Furukawa
Application Number:
JP24415296A
Publication Date:
September 02, 2003
Filing Date:
August 26, 1996
Export Citation:
Assignee:
Hitachi Kiden Kogyo Co., Ltd.
International Classes:
B60L5/00; (IPC1-7): H02J17/00; B60L5/00
Domestic Patent References:
| JP5374237A | ||||
| JP7337035A | ||||
| JP4420130B1 | ||||
| JP472699B1 | ||||
| JP5225543B1 | ||||
| JP40329Y1 | ||||
| JP6506099A |
Attorney, Agent or Firm:
Osamu Mori (2 outside)
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