Contactless power-feed equipment includes: a power-supply device that outputs an AC constant current having a predetermined oscillation frequency to a main induction line; a primary coil provided on the main induction line connected to the power-supply device; a secondary coil that forms an insulating transformer with the primary coil and is connected in parallel with the sub induction line, a resonance capacitor that is connected in parallel with the secondary coil and constitutes a parallel resonant circuit with the sub induction line, and a switch provided between the secondary coil and the parallel resonant circuit. In the parallel resonant circuit, the sub induction line and the resonance capacitor have constants such that the parallel resonant circuit has a resonance frequency equal to the oscillation frequency of the power-supply device.
Contactless power-feed equipment
2016-05-03
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H01F MAGNETS , Magnete / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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