Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 9, 2007
Patent Application Number
11246166
Date Filed
October 11, 2005
Patent Primary Examiner
Patent abstract
Power taken inductively from the alternating current in a track is received by a resonant circuit which is output controlled by a switching circuit asynchronous with the frequency of the power supply. The switch on and off time is controlled to regulate the output power and the circuit is such that on light loads the resonant circuit decouples from the track.
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