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Power supply systems

  • US 10,290,419 B2
  • Filed: 11/14/2013
  • Issued: 05/14/2019
  • Est. Priority Date: 11/15/2012
  • Status: Active Grant
First Claim
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1. A power supply system including:

  • a power supply configured to provide an AC current with a constant magnitude and a sinusoidal waveform having a frequency between 500 Hz and 1000 Hz, wherein the power supply is configured to produce a pulse width modulated output, and the power supply includes a low pass filter capable of filtering high frequency components from the pulse width modulated output;

    a power transmission line connected to the power supply to form a closed circuit; and

    a plurality of pickups configured to accept and slidingly engage with the power transmission line such that each pickup completely encircles a portion of the power transmission line threaded through said pickup, and to inductively couple to the power transmission line,wherein each of the plurality of pickups can be positioned at any point along the length of the power transmission line by being slid along the power transmission line.

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