Schedule of ESE 211 2016 Fall
Lecture: FREY HALL 201;
Week
Lecture
1
8/29
Lab Sec1
8/30
2
9/29
10/3
10/4
7
9/22
9/26
9/27
6
9/15
9/19
9/20
5
9/8
9/12
9/13
4
9/1
9/5
9/6
3
Sec2
10/6
10/10
10/11
10/13
Laboratory: Lt. Eng. Rm283;
PSPICE simulation: Lt. Eng. Rm281 (CAD lab)
Content
Quiz
Lecture 1
PSPICE
Lab 1
Analysis of DC and AC circuits using PSPICE (Rm 281)
No lecture
Labor day
No lab
Lecture 2
Kirchhoff Voltage/Current Law
Lab 2
Measurement of DC voltages and currents
Lecture 3
AC Signal Analysis
Lab 3
Measurement of AC signals
Lecture 4
Transient Response
Lab 4
Transient analysis of RC and LR circuits
Lecture 5
Transfer Function
Lab 5
Frequency response of RC and LR circuits
Lecture 6
Response of Higher Order Circuits + Transformer
Lab 6
Frequency response of higher order circuits (PSPICE, Rm 281)
Quiz1: Kirchhoff Law
Quiz2: Transfer Function
V1 + V 2 + V 3 = 0
The algebraic sum of the voltage drops
around closed path is zero
•The polarity of voltage across every
element may be assigned arbitrary
• KVL is satisfied for AC signals
I1 + I2 +I3 = 0
The algebraic sum of currents entering any
node is zero
• Direction of current through every element
can be chosen arbitrarily
• KCL is satisfied for AC signals
• The polarities of voltages can be assigned arbitrarily
• The polarities of voltages can be assigned arbitrarily
Example 3
I_R1=?
R3=1 kΩ
R1=1 kΩ
Vin=5 V
R2=1 kΩ
I_R2=?
Iin1=10 mA
Example 3
I_R1=?
R3=1 kΩ
R1=1 kΩ
Vin=5 V
R2=1 kΩ
I_R2=?
Solution:
According to KCL, the relation of
current I1 through R1 and current I2
though R2 could be expressed by:
Iin1=10 mA I1=I2+10mA
(1)
According to KVL, the voltage drop on
R1 and R2 together is 5V, therefore,
R1*I1+R2*I2=5V
(2)
By solving Eq. (1) & (2) I2 is found to
be -2.5mA
From Eq. (1) current I1=7.5 mA
Thevenin and Norton equivalent subcircuit
Conductivity and Current Density
Nature of resistivity is connected with collisions of carriers with defects in the regular lattice or
with distortions of atomic arrangement.Distance between collision is the MEAN FREE PATH λ
which is related to τ through thermal velocity
Thus λ is much larger than interatomic saperation.
• Only voltage measurements can be taken
• One node is always grounded: the common mode
voltage must be zero!
In order to measure the voltage across the
element with both terminals hot: two terminals
must be measured separately with respect to the
ground and the results are subtracted
• Good accuracy: high input resistance
• Floating nodes: we can ignore the common mode voltage
• Low accuracy:
Low input resistance for voltage measurements
Low input conductance for current measurements
• Needs to be calibrated for resistance measurements for every scale
• Virtually grounded: the common mode voltage should be minimized!
• High accuracy:
High input resistance for voltage measurements
High input conductance for current measurements
• Voltmeter V is connected in parallel to the element of the circuit
• The power must be switched off and the circuit must be open first
• Ammeter is always connected in series to the element of the circuit
• Then the power is switched on
Taking measurements with DMM Agilent 34450A
Dual display of Digital Multi-meter Agilent 34450A allows one to take
two simultaneous measurement which is very useful.
Measurement available in dual display mode