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categoryالهندسة الكهربائية
schoolبكالوريوس
event_available2026-07-15
السؤال
Transcribed Image Text:
Problem 5: (25%)
We have a linear voltage regulator in figure 5.1.
VOUT=9V when VIN = 15V
Q1 has the following specifications: B = 100 and VBE = 0.6V
We assume that the operational amplifier is ideal but consume 10mA on the supply pin VCC when
the linear regulator is operating as specified. V1 = 3.3V.
5.1 Find R2 with 1% tolerance.
5.2 Find Ro with 5% tolerance.
Notice: If you didn't find R2 in problem 5.1, assume it is 1kQ.
This is not the solution to problem 5.1.
RCL
VIN
Q1
8.20
V1
Ro
VCC
U1
VOUT
ཋ
R1
2.2k
R2
WD
Figure 5.1 The linear voltage regulator.
RLOAD
2000
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