Patent ID: 6501193
Filing Date: 2002-12-31
Classification: H02M

Abstract:
A converter having first and second outputs, comprising:a transformer having a primary winding and at least one secondary winding; a primary side including said primary winding of said transformer, a first switch coupled between said primary winding and ground, said first switch adapted to alternatingly apply an input voltage to said primary winding to define successive on-states and off-states of said converter responsive to feedback voltage from said first output; a secondary side having first and second sections, said first section including said at least one secondary winding and a first inductor coupled between said at least one secondary winding and said first output, said second section including said at least one secondary winding and a second inductor coupled between said at least one secondary winding and said second output; and a second switch adapted to apply a regulating voltage between said second inductor and said at least one secondary winding during a regulating period corresponding to a portion of said off-states to thereby increase volt-seconds applied to said second inductor.