ECE 205: Electronic Circuits
Homework 7 (Due: Thursday, March 10, 5:00 PM)
Problem 1
Find the impedance that would be measured in the circuit between points: (i) a x (ii) b x (iii)
a b.
Problem 2
In the circuit shown below Vs (t) = 40sin(3000t) V. Compute
Prelab #2
ECE 205
V/R=I 9v/180 =0.05A
V1=I(100 )=5v
Prelab #2
ECE 205
After transformation we can easily
find Req=44.4
Net Current=(.1125-.001)=.1115A
V=InetReq=(44.4)(.1025)=4.95V
Same method as circuit2.
Req=44.4
Inet=(.1125-.01)=.1025A
V=InetReq=4.55
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ECE205 17 Fall HW2 Solutions
ECE205 HW2 solution
1. Find Vs in the circuit below.
Ans:
Vs = 12
(3k + 6k + 12k)
6k
= - 42 V
2. Find Req in the circuit below.
Ans:
Req = R + R + 2R|(R+2R|2R) = 2R + 2R|(R+R) = 2R + R = 3R.
3. Find Rab in the circuit below.
ECE205: Electronic Circuits
Homework 3
(Due: Wednesday, September 20, 5:00 PM )
Do not forget to staple you HW!
1.
Write two loop equations in terms of i1 and i2. It is not necessary to solve.
2.
Find voltages V1, V2, and V3 as referenced to ground as sho
ECE 205 Lab 1:
Battery Evaluation
Name(s)
Date(s)
Michael J. Haney
1/30/2017, lab work
1/32/2017, report
Statement of Purpose:
Many consumer electronic products use multiple AA or AAA batteries (remote controls, flashlights,
smoke detectors, radios, etc.)
ECE205 17 Fall
ECE205: Electronic Circuits
Homework 2
(Due: Wednesday, September 13, 5:00 PM)
Do not forget to staple your HW!
1. Find Vs in the circuit below.
2. Find Req in the circuit below.
3. Find Rab in the circuit below.
ECE205 17 Fall
4. Find Req
Prelab
The objective for this lab is to determine how we can measure internal resistance in
side the battery by performing few experiments and calculation. Battery generally
get worn out after time, and loses its maximum potential energy source and we
cal
ECE 205 A, Spring 2013 Hour Exam 2
(m
Name: Adam has 7
&
VDD:+5V
S ? V643 : \f\
6 Q1 vw_12v V35=5VW\
D kpo.2mA/v2
In out
D
a) Calculate Vin such that both transistors Q1 and Q2 are saturated
ES-El(VGS \lm\2 T MT? (\Jsa VWYI
\< N (Vm \1m\2 2 K; [(5 NM -\1w
ECE 205: Electronic Circuits
Homework 6 (Due: Wednesday, October 11)
Problem 1
Determine the phasor form of the following sinusoids,
1. f (t) = 5cos 2t 6
2. f (t) = 11sin 2t
2
Problem 2
Find the cosine function f (t) with the frequency = 2 rad/s correspo
ECE 205: Electronic Circuits
Homework 4 (Due: Wednesday, September 27, 5:00 PM )
Problem 1
a. Determine Ix in Figure 1, using superposition
R1
2
R2
3
V1
5V
R3
1
V2
-2 V
Ix
Figure 1: Figure for Problem 1(a)
b. Determine V in Figure 2, using superposition
+
ECE 205: Electronic Circuits
Homework 5 (Due Wednesday, October 4th)
Problem 1 (Optional)
a) Waveform for the current in a 10 inductor is shown below. Determine the waveform of
the inductor voltage. Your plot should have the relevant details (voltage and
ECE 205: Electronic Circuits
Homework 13 (not due)
Problem 1
KNL 14.3
Problem 2
KNL 14.4
Problem 3
Verify De-Morgans laws for two inputs using Truth tables.
Problem 4
KNL 13.18
Problem 5
Create a logic circuit to implement f = a
b
c + a + c
Problem 6
Cons
ECE 205: Electronic Circuits
Homework 6 (Due: Thursday, March.3, 5:00 PM )
Problem 1
Determine the phasor form of the following sinusoids,
(
)
1. f (t) = 3cos 3t 6
(
)
2. f (t) = 4sin 4t 2
Problem 2
Find the cosine function f (t) with the frequency = 4 ra
ECE 205: Electronic Circuits
Homework 1 (Due: Wednesday, January 27, 5:00 PM )
1. 1.23
2. 1.24
3. Determine whether each element in 4
theAcircuit shown below is supplying or absorbing power.
2V + 6A
Also compute the magnitude of the power. + 25 V
4A
20 V
ECE 205 Spring 2015: Homework 9
Due Wednesday 4/6 by 5:00 PM:
1)
2)
3)
4)
5)
6)
KnI 7.1
KnI 7.8
KnI 7.11
KnI 9.13
KnI 9.22
Consider circuit 1, as follows, which shows a filter which relates the input voltage Vi to the
output voltage Vo.
Circuit 1
a) As we
ECE 205 Spring: Homework 3
Due Wednesday 2/10 at 5:00 PM.
1) KnI 2.52
ECE 205: Electronic Circuits
Homework 3 (Due: Wednesday, February 10, 5:00 PM )
2) Using the circuit in KnI 2.56:
a) Use loop analysis to find all mesh currents, even though the problem
L = 1 ECE
H 205:
R = 3Electronic
Circuits
Homework 8 (Due: Thursday, March 31, 5:00 PM)
+
Problem 1
Determinesthe natural (zero-input) response solution for the 2nd - order ODE given below. Assume
y(0) = 3 and dy(0)
dt = 2.
dy(t)
d2 y(t)
+3
+ 2y(t) = f (t
ECE 205: Electronic Circuits
Homework 4
(Due: Wednesday, Feb. 17, 5:00 PM, 2016)
Problem 1
KNI 2.65
Problem 2
Write the following in z = a + jb form,
1. z = 5ej
5. z =
j
2. z = 5e 2
2
3. z = 2ej 3
4. z = 2ej 4
6. z =
7. z =
8. z =
2ej
4
2ej
3
4
2ej
5
4
ECE 205 Spring 2016: Homework 12
Due Wednesday 4/27 at 5:00 PM:
1) KnI 11.44
2) Consider the following circuit where the transistor has the following parameters: = .7 ,
= .2, = 100.
Given Rb = 50 k, find current Ic, voltage , and the operating mode of th
b
b
ECE 205: Electronic Circuits
Homework
5 (Due: Wednesday, Feb 24, 5:00 PM )
a
Problem 1
KNL 3.3
b
Problem 2
KNL 3.12
Problem 3
Consider the circuit shown below.
c The switch in the circuit is moved at t = 0 as shown in the
figure. Assuming that the cap
ECE205
Fall 2015
Homework #4 Solution
Problem 1.
6k
Vo
6k
4k
4mA
12V
(a)
Vo
4k
sh is
ar stu
ed d
vi y re
aC s
o
ou urc
rs e
eH w
er as
o.
co
m
6k
6k
4mA
(b)
6k
Vo
4k
6k
12V
(c)
4k
From Fig(b), V00 = k4 ( 4k+6k+6k
)6k = 6V
6k
From Fig(c), V000 = 12( 4k+6k+
ECE 205 Quiz 1 Spring 2017
Name: _
INSTRUCTIONS:
A
Begin the test when you are verbally instructed. You have 40 minutes to
complete the quiz.
Write your name on every page. Sign and write your NetID on the cover
page.
This is a closed book, closed notes q
ECE 205 Quiz 2 Fall 2016 Section G Name:
INSTRUCTIONS:
Begin the test when you are verbally instructed. You have 40 minutes to
complete the quiz.
Write your name on every page. Sign and write your NetlD on the cover
page.
This is a closed book, closed not