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Energy recovery circuit for use in a converter

  • US 5,864,471 A
  • Filed: 03/28/1997
  • Issued: 01/26/1999
  • Est. Priority Date: 03/28/1997
  • Status: Expired due to Fees
First Claim
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1. A converter circuit comprising:

  • a primary side switching circuit having a primary transformer winding;

    a secondary side rectifier circuit having a secondary transformer winding magnetically coupled to the primary transformer winding for transferring energy from the primary transformer winding to the secondary transformer winding; and

    an energy recovery circuit having (i) an auxiliary winding associated with the primary transformer winding and the secondary transformer winding and (ii) an energy passing section connected to the primary side switching circuit and the auxiliary winding, wherein the auxiliary winding absorbs selected amounts of energy from at least one of the primary side switching circuit and the secondary side rectifier circuit and returns the selected energy to the primary side circuit, through the energy passing section.

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