Patent ID: 6771523
Filing Date: 2004-08-03
Classification: H02M,Y02B

Abstract:
A converter secondary circuit having a main output (2) and an auxiliary output (7), the secondary circuit comprising:a first synchronous ectifier (3, 4) which is self-controlled and generates a first rectified voltage (VRect) for the main output (2), and a second synchronous rectifier (9, 10) which generates a second rectified voltage for said auxiliary output (7A), said second synchronous rectifier being controlled by an auxiliary regulation control circuit (8) having a synchronization input (8B), which circuit is characterized in that the second synchronous rectifier receives at its input said first rectified voltage (VRect) and said synchronization input (8B) receives a synchronization signal (Syn) which is at zero whe said first rectified voltage (VRect) is not at zero.