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2.1 INTRODUCTION The forward ON voltage, reverse blocking voltage and reverse recovery time are
 

Summary: 10
CHAPTER II
DIODES
2.1 INTRODUCTION
The forward ON voltage, reverse blocking voltage and reverse recovery time are
three important characteristics of a diode. The forward ON state voltage is required to be
the lowest possible for low power dissipation, breakdown voltage the highest possible
depending upon targeted application and reverse recovery time should be the least
possible for faster switching. While improving the reverse recovery of the diode by the
incorporation of "universal contact" (UC) no deleterious effects on the ON state voltage
and breakdown voltage are desired. Keeping this in view, a brief review of these
characteristics and their dependence on diode parameters is taken up before going to
analysis and modeling of the effects caused by the incorporation of the UC.
The ON state voltage is comprised of built-in voltages at both diffused junctions
and voltage drop in middle region. The ON state characteristics [16] of an ideal diode can
be described by the relationship




  

Source: Anand, Raghubir Singh - Department of Electrical Engineering, Indian Institute of Technology Kanpur

 

Collections: Engineering