Method and apparatus for providing selectable output voltages

  • US 20010048356A1
  • Filed: 01/11/2001
  • Published: 12/06/2001
  • Est. Priority Date: 01/12/2000
  • Status: Active Grant
First Claim
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1. A transformer comprising:

  • a primary winding having terminals for conveying input power;

    a plurality of secondary windings having output terminals for conveying output power, said secondary windings including a first pair of isolated center tapped windings and a second pair of isolated windings;

    a plurality of switches electrically coupling leads of said plurality of secondary windings providing a selection of n distinct output voltages at said output terminals ranging from x voltage units to y voltage units, wherein y is greater than 2x.

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