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The synchronous rectification is a technique for improving efficiency of power converters in power electronics. It consists of connecting a diode and a transistor (usually a power MOSFET) in parallel. When the diode is forward-biased, the transistor is turned on, to reduce the voltage drop. When the diode is reverse-biased, the transistor is turned off, so no charge can flow through the circuit. This way, a rectifying characteristic is obtained, without the forward voltage drop associated with diodes in the on-state.

Synchronous rectification. (2007, December 24). In Wikipedia, The Free Encyclopedia. Retrieved 18:52, February 22, 2008, from
http://en.wikipedia.org/w/index.php?title=Synchronous_rectification&oldid=179939538
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