Phase compensation driving scheme for synchronous rectifiers

Details Phase compensation driving scheme for synchronous rectifiers Phase compensation driving scheme for synchronous rectifiers

2007-05-16

2009-10-13

Nguyen, Matthew V (Department: 2838)

Electricity: power supply or regulation systems

Remote sensing

Reexamination Certificate

active

07602154

ABSTRACT:
Phase compensation of a voltage appearing on physical terminals of a synchronous rectifier switching element such as a MOSFET is used to substantially eliminate effects of package inductance of the synchronous rectifier and thus approximate the actual voltage across the circuit element providing synchronous rectification in, for example, a switching power converter. By doing so and using the phase compensated signal to control the synchronous rectifier, switching time may be more suitably controlled to improve efficiency of the synchronous rectifier by substantially eliminating body diode conduction and body diode reverse recovery effects.

REFERENCES:
patent: 5552695 (1996-09-01), Schwartz
patent: 5991167 (1999-11-01), Van Lerberghe
patent: 6072701 (2000-06-01), Sato et al.
patent: 6771521 (2004-08-01), Xiong et al.
patent: 7193866 (2007-03-01), Huang

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