The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Dec. 23, 1999
Anatoly Shteynberg, San Jose, CA (US);
Switch Power, Inc., Campbell, CA (US);
Abstract
The input side of a DC:DC converter emulates current fed topologies and replaces an active switch and associated components with a passive inductor, coupled between Vin and upper nodes of the primary transformer windings, that smoothes input current. Several output side topologies are disclosed that may be used with any input side configuration, and require no output snubbers. The output topologies use non-center-tapped secondary windings that are utilized 100% of the time. The output topologies advantageously use series-coupled capacitors, which configuration distributes voltage stress. The topologies advantageously provide two output voltages, Vo1 and Vo2≈Vo1, or Vo2≈−Vo1. The snubber-less output side topologies provide very low EMI content waveforms that may be switched at relatively high frequencies.