EE 322 Advanced Electronics, Spring 2012
Exam 1
Monday February 27, 2012
Rules: This is a closed-book exam. You may use only your brain, a calculator
and pen/paper. Each numbered question counts equally toward your grade.
Note: The questions are designed
EE 322 Advanced Analog Electronics, Spring 2010
Homework #7 solution
SS 13.5. In a particular oscillator characterized by the structure of Fig 13.1, the
frequency-selective network exhibits a loss of 20 dB and a phase shift of 180 at
0 . What is the minim
EE 322 Advanced Electronics, Spring 2013
Exam 1
Monday March 4, 2013
Rules: This is a closed-book exam. You may use only your brain, a calculator
and pen/paper. Each numbered question counts equally toward your grade.
Note: The questions are designed to t
EE 322 Analog Electronics, Spring 2010
Exam 1 February 24, 2010
solution
Rules: This is a open book test. You may use the textbook as well as your notes. The exam
will last 50 minutes. Each problem counts equally toward your grade.
1. Switching regulator
EE 322 Analog Electronics, Spring 2010
Exam 2 March 31, 2010
Solution
Rules: This is a open book test. You may use the textbooks as well as your notes. The exam
will last 50 minutes. Each numbered problem counts equally toward your grade.
LCR circuit
R
L
EE 322 Advanced Electronics, Spring 2013
Exam 2
Wednesday April 3, 2013
Rules: This is a closed-book exam. You may use only your brain, a calculator
and pen/paper. Each numbered question counts equally toward your grade.
Note: The questions are designed t
EE 322 Analog Electronics, Spring 2010
Exam 1 March 2, 2011
solution
Rules: This is a closed book test. You may use the help sheet handed out as well as a
calculator. The exam will last 50 minutes. Each numbered question counts equally toward
your grade.
EE 322 Advanced Analog Electronics, Spring 2010
Homework #8 solution
HH 9.5. Show that these choices of lter components actually give a loop gain
of magnitude 1.0 at f2 = 2.0 Hz.
The magnitude of the loop gain expression on page 649 is
|Gloop | = KP
22
KV
EE 322 Advanced Analog Electronics, Spring 2010
Homework #7 solution
SS 12.13. Calculate the value of attenuation obtained at a frequency 1.6 times
the 3-dB frequency of a seventh-order Butterworth lter, and compare it to the
rst order lter.
The 3-dB freq
EE 322 Advanced Analog Electronics, Spring 2010
Homework #9 solution
SS 12.48. It is required to design a third-order low-pass lter whose |T | is equiripple in both the passband and the stopband (in the manner showin in Fig. 12.3,
except that the response
EE 322 Advanced Analog Electronics, Spring 2010
Homework #10 solution
SS 8.73. An amplier has a dc gain of 105 and poles at 105 Hz, 3.16 105 Hz, and
106 Hz. Find the value of and the corresponding closed-loop gain, for which a
phase margin of 45 is obtain
EE 322 Advanced Analog Electronics, Spring 2010
Homework #11 solution
SS 7.1. For a NMOS dierential pair with a common-mode voltage vCM applied,
as shon in Fig. 7.2, let VDD = VSS = 2.5 V, knW/L = 3 mA/V2 , Vtn = 0.7 V,
I = 0.2 mA, RD = 5 k, and neglect c
EE 322 Advanced Analog Electronics, Spring 2010
Homework #6 solution
SS 12.9. A third-order low-pass lter has transmission zeros at = 2 rad/s and
= . Its natural modes are at s = 1 and s = 0.5 j 0.8. The DC gain is
unity. Find T (s).
We construct the tra
EE 322 Advanced Analog Electronics, Spring 2010
Homework #4 solution
SS 13.34. Figure P13.34 shows a monostable multivibrator circuit. In the stable
state, vo = L+ , vA = 0, and vB = Vref . the circuit can be triggered by applying
a positive input pulse o
EE 322 Analog Electronics, Spring 2010
Exam 4 May 12, 2010
Solution
1. Linear regulator
The LM7805 is a linear regulator with a xed output of 5 V and up to 1 A.
Design a voltage regulator using the LM7805 and a external pass transistor, in
which the pass
EE 322 Advanced Analog Electronics, Spring 2010
Homework #1 solution
HH 6.3. Design a 723 regulator whith outboard pass transistor and foldback
current limiting to provide up to 1.0 amp when the output is at it regulated
value of +0.5 V, but only 0.4 amp
EE 322 Advanced Analog Electronics, Spring 2010
Homework #2 solution
HH 6.8
Theoretically, a linear regulator delivers on the output up to the same current as it draws
on the input. The maximum delivered output power is therefore
Pout,max = Vout Iin .
The
EE 322 Advanced Analog Electronics, Spring 2010
Homework #3 solution
SS 13.5. In a particular oscillator characterized by the structure of Fig 13.1, the
frequency-selective network exhibits a loss of 20 dB and a phase shift of 180 at
0 . What is the minim
EE 322 Analog Electronics, Spring 2010
Exam 3 May 7, 2010
Amplier Stability and stability
A dierential amplier has a transfer function, A, with DC open-loop gain of
104 , and poles at 104 Hz, and 106 Hz. You may assume that the poles are widely
spaced suc
EE 322 Analog Electronics, Spring 2011
Exam 3 April 20, 2011
solution
Noise
Consider a normal inverting amplier using an op-amp. Assume the usual noise
on the two resistors and noise on one of the inputs of the op-amp (it doesnt
matter which input you pla
EE 322 Advanced Electronics, Spring 2013
Quiz 8, April 22, 2013
1. Write the most general expression for a 4th order lter function.
2. Write the most general expression for a second-order low-pass lter with
the steepest possible slope at high frequency.
3
Homework 6, due March 19, 2012
Solution
1. SS 8.74. A two-pole amplier for which Ao = 103 and having poles at 1 MHz
and 10 MHz is to be connected as a dierentiator. On the basis of the rateof-closure rule, what is the smallest dierentiator time constant f
EE 322 Advanced Analog Electronics, Spring 2012
Homework #8 solution
SS 13.24 Consider the bistable circuit of Figure 13.19(a) with the op-amps
positive-input terminal connected to a positive voltage source V through a resistor R3
The circuit we will cons
EE 322 Advanced Analog Electronics, Spring 2012
Homework #9 solution
SS 13.34. Figure P13.34 shows a monostable multivibrator circuit. In the stable
state, vo = L+ , vA = 0, and vB = Vref . the circuit can be triggered by applying
a positive input pulse o
EE 322 Advanced Analog Electronics, Spring 2012
Homework #11 solution
SS 12.9. A third-order low-pass lter has transmission zeros at = 2 rad/s and
= . Its natural modes are at s = 1 and s = 0.5 j 0.8. The DC gain is
unity. Find T (s).
We construct the tr
EE 322 Advanced Analog Electronics, Spring 2012
Homework #10 solution
1. Do H&H Exercise 9.5 in the body of the text.
The expression for the loop gain is
KVCO
Kdiv
j
1 + jR4 C2
1.13 105
1
=1.59
1 + j (R3 C2 + R4 C2 )
j
1024
L = KP KF
We need to verify th
Homework 5, due March 7, 2012
Solution
1. SS 8.73. An amplier has a dc gain of 105 and poles at 105 Hz, 3.16 105 Hz,
and 106 Hz. Find the value of and the corresponding closed-loop gain, for
which a phase margin of 45 is obtained.
A phase margin of 45 cor
EE 322 Advanced Electronics, Spring 2012
Homework #3 solution
1. Plot, to scale, the voltage across, and current through the inductor of a
step-down switching voltage regulator with Vin = 10 V and Vout = 3 V
Here is a step-down regulator
First the voltage
EE 322 Advanced Electronics, Spring 2012
Exam 3
solution
Wednesday April 25, 2012
Rules: This is a closed-book exam. You may use only your brain, a calculator
and pen/paper. Each numbered question counts equally toward your grade.
Note: The questions are
EE 322 Advanced Electronics, Spring 2012
Exam 2
solution
Friday March 30, 2012
Rules: This is a closed-book exam. You may use only your brain, a calculator
and pen/paper. Each numbered question counts equally toward your grade.
Note: The questions are des