HIGH EFFICIENCY POWER CONVERTER

  • US 20100091526A1
  • Filed: 06/05/2009
  • Published: 04/15/2010
  • Est. Priority Date: 01/24/1997
  • Status: Active Grant
First Claim
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1. A dc-dc converter system comprising:

  • isolation/semi-regulation circuitry comprising;

    a primary transformer winding circuit having at least one primary winding;

    a secondary transformer winding circuit having at least one secondary winding coupled to at least one primary winding and having plural controlled rectifiers, each having a parallel uncontrolled rectifier; and

    a control circuit that senses a voltage in the primary transformer winding circuit to provide a feedback control signal without bridging an isolation barrier between the primary and secondary transformer winding circuits, the feedback control signal controlling semi-regulation by control of duty cycle of a transistor in the primary transformer winding circuit; and

    an output of the isolation/semi-regulation circuitry whose voltage value drops due to impedance of an output path; and

    a plurality of non-isolating switching regulators, each receiving the output of the isolation/semi-regulation circuitry whose voltage value drops.

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