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Method of controlling switching regulator

  • US 5,343,377 A
  • Filed: 10/30/1992
  • Issued: 08/30/1994
  • Est. Priority Date: 11/13/1991
  • Status: Expired due to Fees
First Claim
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1. A method of controlling a current resonant parallel switching regulator comprising a plurality of switches arranged in a bridge configuration and a resonant circuit connected between output poles of said bridge configuration, said method comprising the steps of:

  • providing a current circulating circuit, including one of said switches of said bridge configuration and said resonant circuit, for preventing a circuit loss increasing phenomenon from occurring due to an increase in a resonant current caused by an increase in a resonant voltage when an output load current of said resonant parallel switching regulator is reduced, andonce in between switching phases of said bridge configuration, forming a closed circuit between opposite polarity terminals of said resonant circuit by closing said switch of said current circulating circuit.

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