Patent ID: 7471524
Filing Date: 2008-12-30
Classification: H02M,Y02B

Abstract:
1. A DC-to-DC converter comprising: a transformer having a primary side winding and a secondary side winding having a secondary tap; an input voltage source for applying ac voltage to the primary side winding of the transformer; a first and second output filter inductor serially connected in parallel with the secondary side winding; a center output filter inductor having a first end and a second end, the first end connected to the secondary tap and second end connected to a serial connection of the first and second output inductor; a serially connected first and a second switching device connected in parallel with the first and second output inductors for receiving a driving signal to control the operation of the first and second switching devices during steady state operation; and a output load connected between the serial connection of the first and second output inductor and the serial connection of the first and second switching devices, wherein the output filter inductors evenly share an output current resulting in a reduction in operational stress during high current application.