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Isolated DC-DC converters with high current capability
   
Document Number
US Patent 7471524
Issued Date
December 30, 2008
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Abstract
A DC-to-DC converter having a transformer with a primary and a tapped secondary, two serial output filter inductors connected parallel with the secondary, a center output filter inductor connected between the secondary tap and serial output inductors, two serially connected switches connected in parallel with the two output inductors for receiving a signal to control operation of the switches during steady state and an output load connected between the serial connection of the serial output inductors and serial switching devices. The transformer primary side connected with double-ended primary-side topologies. The transformer secondary and output filers configured to form a current tripler rectifier, current quadtupler rectifier or current N-tuper rectifier. The output filter inductors evenly share output current resulting in reduction of current and thermal stress during high current application and the rectification topology has simple driving for synchronous rectifier application without increasing complexity of control and operation of primary-side topologies.
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Number of Claims:
20
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Published
December 30, 2008
Application Number
11/753,964
Filed
May 25, 2007
US Classification
363/25   363/127 363/21.06 363/90
Int'l Classification
H02M   3/335   (20060101)   H02M   5/42   (20060101)  
Examiner
Parent Case
This application claims the benefit of priority to U.S. Provisional Patent Application No. 60/808,612 filed on May 26, 2006.
USPTO Field of Search
363/21.06   363/21.14   363/24   363/25   363/26   363/81   363/82   363/88   363/89   363/90   363/125   363/127  
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