| 摘要 |
The invention concerns a direct energy-transfer converter of the AC/AC or DC/DC type, including a self-regulated synchronous rectifier, in which the rectifier switches are controlled through one or more transformer windings. The converter includes a primary stage with at least one primary winding of a transformer and at least one controlled switch, with a secondary stage having at least one secondary winding ( 10 ) of the transformer, and a synchronous rectifier ( 1 ) with at least a first switch ( 20 ) which is self-regulated and conducting during the conducting phase of the controlled switch of the primary stage, known as the direct energy-transfer stage, and at least one secondary switch ( 30 ) which is self-regulated and conducting during the non-conducting phase of the controlled switch of the primary stage, known as the freewheel phase, and an output filter ( 5 ). Said converter also includes the means (CTC 1 ) to render conducting said second switch ( 30 ) independently of the voltage at the terminals of the secondary winding ( 10 ) during said freewheel phase.
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