EE 326 HW #2 Spring 2014
Problem One : For the circuit shown find the voltage and current across each
element using Ohms law and complex impedances.
Problem Two: For the circuit shown.
(a) What is an expression for the current through the resistor as a fu
EE 326 HW 5
Problem One : Solve for the gain.
EE 326 HW 5
Problem Two: A certain op amp has an open loop gain of 105
and an open loop break frequency of 40 Hz. It is used in the
circuit shown below. Sketch the Bode plots if R2/R1 is equal 9
and when R2/R1
EE 326 HW 9
Problem One: Consider the Schmitt trigger circuit shown
(a) What must the relationship be between R1 and R3 in order for the reference voltage to
be zero when the output is low.
(b) What resistor could be made variable combined with the condit
EE 326 HW 7 Sltns
PROBLEM ONE:
For the resistor bridge sensor circuit shown
show Vout is (Vref/4)X
1
EE 326 HW 7 Sltns
PROBLEM TWO: For the capacitor bridge sensor circuit shown
show Vout is (Vref/4)X
2
EE 326 HW 7 Sltns
3
EE 326 HW 9
Problem One: Consider the Schmitt trigger circuit shown
(a) What must the relationship be between R1 and R3 in order for the reference voltage to
be zero when the output is low. R1 = R3
(b) What resistor could be made variable combined with th
EE 326 HW 6 Sltns
Problem One:
(a) Find the current through the load.
1
EE 326 HW 6 Sltns
2
EE 326 HW 6 Sltns
Problem Two:
3
EE 326 HW 6 Sltns
Problem Three: The voltage follower circuit is:
An Op Amp model equivalent circuit wherein the finite input impe
EE 326 HW # 8
Problem One: Explain with equations how an accelerometer works and design a
circuit in which the accelerometer could be embedded.
EE 326 HW # 8
EE 326 HW # 8
Problem Two: Explain with equations how a Thermocouple works and design a
circuit i
Sensor Circuits and Schmitt Triggers
Circuit to be used for a thermistor without a wheatstone bridge:
Why does this work?
1|Page
Sensor Circuits and Schmitt Triggers
Given Vdiode = (KT/e) ln[ (i/is) + 1]
Design a circuit that will measure the voltage acro
Sensor Lecture Notes EE 326
1
Sensor Lecture Notes EE 326
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Sensor Lecture Notes EE 326
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Sensor Lecture Notes EE 326
A capacitance bridge in the wheatstone
bridge configuration will give us the same
result and will isolate us from ground
4
Sensor Lecture
EE 326 HW 7
PROBLEM ONE:
For the resistor bridge sensor circuit shown
show Vout is (Vref/4)X
PROBLEM TWO: For the capacitor bridge sensor circuit shown
show Vout is (Vref/4)X
EE 326 HW # 8
Problem One: Explain with equations how an accelerometer works and design a
circuit in which the accelerometer could be embedded.
Problem Two: Explain with equations how a Thermocouple works and design a
circuit in which the accelerometer co
EE 326 HW #1 Spring 2013
Problem One: Consider the circuit.
(a) If you are trying to find a Thevenin equivalent circuit for the load what is the Thevenin
resistance ?
(b) What is the Norton resistance?
(c) What is the Thevenin voltage?
(d) What is the Nor
Chapter 14 Operational Amplifiers H
ablems
ion 14.1: Ideal Operational Ampliﬁers
4.1. What are the characteristics of an ideal op
amp?
4.2. A real op amp has ﬁve terminals. Name the
probable function for each of the terminals.
4.3. A differential ampliﬁer
EE 326 HW 5
Problem One : Solve for the gain.
EE 326 HW 5
Problem Two: A certain op amp has an open loop gain of 105
and an open loop break frequency of 40 Hz. It is used in the circuit
shown below. Sketch the Bode plots if R2/R1 is equal 9 and when
R2/R1
= 20 log H 0 + 20n log(fB ) 20n log(f )
(f / f )2n
B
This expression shows that the gain magnitude is reduced by 20n
decibels for each decade increase in f.
H (f ) dB 20 log
E14.22
H0
Three stages each like that of Figure 14.40 must be cascaded. From
EE 326 HW 6
Problem One:
(a)
(b)
(c)
(d)
Find the current through the load.
What is the input impedance of the circuit?
What is the output impedance?
Draw the Norton equivalent circuit.
EE 326 HW 6
Problem Two:
(a)
(b)
(c)
(d)
Find the current through the
Thevenin Equivalent Circuits
Introduction
In each of these problems, we are shown a circuit and its Thevenin or Norton equivalent circuit.
The Thevenin and Norton equivalent circuits are described using three parameters: Voc, the open
circuit voltage of t