350 Solved Electrical Engineering Problems: For the FE/PE Exams in Electrical Engineering
By Edward Karalis

Chapter 2.0: Electronics

2.1 Diode

Determine the expression for the voltage across R L in Figure 2.1. Assume that the diode, D 1, has linear transfer characteristics.


Figure 2.1: Diode

Solution:

V = ir d + iR L + v d

V ? v d = i(r d + R L)

i = 0

(V < 0.7 volts)

V L = iR L = 18sin377t ? 0.525 volts

(V > 0.7 volts)

V L = 0 volts

(V < 0.7 volts)

Copyright Dearborn Financial Publishing, Inc. 2004 under license agreement with Books24x7
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