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High frequency synchronous buck converter for low voltage applications

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3 Author(s)
Djekic, O. ; Power Electron. Group, Pasadena, CA, USA ; Brkovic, M. ; Roy, A.

The effect of dead time delays on the efficiency of a constant frequency, 1 MHz low voltage, synchronous buck power converter is investigated. The overall efficiency is calculated as a function of the load current and the switching frequency with the dead time as a parameter. It was calculated, and subsequently experimentally verified, that the efficiency can be improved by over 3.5% by eliminating unnecessary body diode conduction

Published in:

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE  (Volume:2 )

Date of Conference:

17-22 May 1998