×

Simplified UPS system

  • US 5,291,383 A
  • Filed: 09/02/1992
  • Issued: 03/01/1994
  • Est. Priority Date: 09/02/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A power supply system, comprising:

  • (a) resonant control means for providing gate drive signals;

    (b) a gate drive circuit comprising a current booster and a first transformer, said current booster comprising an input coupled to an output of said resonant control means, said first transformer comprising a primary winding coupled to an output of said current booster and two secondary windings;

    (c) a resonant converter comprising first and second transistors and a second transformer, each transistor comprising a gate coupled to a secondary winding of said first transformer, said second transformer comprising a secondary winding and a primary winding coupled to said transistors so as to be driven by said transistors; and

    (d) a bootstrap power supply circuit comprising a first auxiliary winding associated with said second transformer and power supply means associated with said first auxiliary winding for supplying an isolated DC supply voltage to said resonant control means.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×