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Dual energy power supply

  • US 5,661,774 A
  • Filed: 06/27/1996
  • Issued: 08/26/1997
  • Est. Priority Date: 06/27/1996
  • Status: Expired due to Fees
First Claim
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1. A power supply for use in alternately powering a X-ray tube having a cathode and anode at high and low voltage levels at a predetermined rate so that the tube generates a dual energy X-ray beam, the power supply comprising:

  • at least one high DC voltage supply for providing a stable, high DC voltage to the X-ray tube;

    means, including at least one waveform generator, for providing a periodic time varying waveform; and

    coupling means, including a transformer, for coupling the waveform generator to said DC voltage supply so that the total voltage across the cathode and anode of the tube is periodically changed between the high and low voltage levels at the predetermined rate in response to the periodic time varying waveform provided by the waveform generator.

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