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Providing a vehicle with electric energy using induction and a rectifier

  • US 9,780,570 B2
  • Filed: 02/18/2013
  • Issued: 10/03/2017
  • Est. Priority Date: 02/17/2012
  • Status: Active Grant
First Claim
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1. An arrangement for providing a vehicle with electric energy, the arrangement comprising:

  • a receiving device adapted to receive an alternating electromagnetic field and to produce an alternating electric current by electromagnetic induction, wherein;

    the receiving device comprises at least one inductance which is formed by an electrically conducting material for producing one phase of the alternating electric current by the electromagnetic induction,each inductance producing one phase of the alternating electric current at a resonance frequency at which the phase of the alternating electric current is produced in response to the alternating electromagnetic field of corresponding frequency being received by the receiving device,each inductance connected to a rectifier for rectifying the alternating electric current and thereby producing a direct electric current,the rectifier comprisesan automatically controllable switch which is arranged such that closing the switch results in a short circuit across the at least one inductance, ora plurality of automatically controllable switches which is arranged such that closing the switches results in a short circuit across the at least one inductance,the arrangement comprises a control device which is adapted to control the automatically controllable switch or the plurality of automatically controllable switches, andthe control device is adapted to switch on and off the automatically controllable switch or the plurality of automatically controllable switches at a frequency which is smaller than the resonance frequency.

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