AN836低正向电压的肖特基二极管

AN836低正向电压的肖特基二极管

AN836
APPLICATION NOTE

LOW FORWARD VOLTAGE SCHOTTKY DIODE

INTRODUCTION
In power supplies, the major portion of power losses is due to output rectifiers. The impact of these losses
on the efficiency can be expressed by:


V F ( IOUT )
η = --------------------------
-
V OUT
η :efficiency drop due to the diodes.
VF(IOUT) :voltage drop at the output current
(IOUT) of the converter.
VOUT :output voltage of the converter.
This formula shows that the influence of the forward voltage increases when the outp