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Switched mode power supply having a boost converter operatively combined with a flyback converter

  • US 6,489,754 B2
  • Filed: 10/30/2001
  • Issued: 12/03/2002
  • Est. Priority Date: 11/01/2000
  • Status: Expired due to Fees
First Claim
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1. A switched mode power supply having:

  • an input for receiving a rectified input AC signal;

    an output for delivering a regulated output voltage signal;

    an auxiliary circuit coupled in series with the output; and

    a boost converter coupled to receive the rectified input AC signal and delivering a boost output to a series connection of the output and the auxiliary circuit, characterized in that the switched mode power supply further comprises;

    a flyback converter, the flyback converter having a flyback input coupled to the auxiliary circuit and a flyback output coupled to the output.

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