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Switch mode power stage

  • US 20020180411A1
  • Filed: 05/24/2002
  • Published: 12/05/2002
  • Est. Priority Date: 05/25/2001
  • Status: Active Grant
First Claim
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1. A power conversion device operable in a discontinuous conduction mode under the control of a switching means and wherein during operation in the discontinuous conduction mode, an oscillating voltage exists across the switching means prior to a turn-on of the switching means, the device comprising:

  • switch control means arranged to cause turn-on of the switching means to occur at a minimum of the oscillating voltage; and

    timing means arranged to provide a controlled time period following a first turn-on of the switching means, during which a second turn-on of the switching means can not occur.

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