Electrical Engineering homework help

 
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Crops require consistent fertilization and spraying in order to maintain high yields. Traditionally this was done manually, with vehicles, or even via airplane. These methods are not only inefficient, and burdensome, but they can be very costly as well.
To increase safety and provide cost-effective work among the farmers, you are assigned to change the manual fertilizer spraying method to automatic fertilizer spraying method by using a drone. Note that there are two ways to fly a drone which is, manual and automatic. In order to perform automatic closed loop control system, automatic control must be take place.
Automatic control in this context means you will use waypoints to fly your drones. You need to control the drone’s height (level) and speed and also take into account the disturbances.
The design of automatic closed loop control system are comparatively complex than the manual ones. Such system takes feedback from output and performs the required action accordingly. The entire construction requires a sensor for taking input, some sort of controller which performs the action and a feedback taken from the output
 
Your design report should include (for height and speed control):
 
1. Introduction
a. System background (briefly explain on how to control a drone / how to fly a drone)
b. Justification of using automatic closed loop control rather manual control.
2. Identify all the variables involved
a. Controlled variable
b. Manipulated variable
c. Disturbances
3. Identify all the elements/instruments used
a. Controller
b. Final Control Element
c. Process/System
d. Sensor
4. Draw equivalent signal block diagram for the system
5. Explain the closed loop control system
6. Sketch the expected dynamic response
7. Briefly explain the advantages of automatic control in industry
8. Conclusion

 
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Electronic Engineering homework help

 
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1. The objective of simulation is to verify and optimize the design.
Simulation can idealize a circuit. The objective of measurement is
to experimentally confirm the specifications. Measurements must
consider all non-idealities.
a. Describe completely the definition of the Common
Mode Rejection Ratio (CMRR) of an operational
amplifier. Recommend a circuit to measure the CMRR.
Use MULTISIM to conduct the measurements of
CMRR. Provide the plot of the CMRR (in dB) versus
Frequency (Hz) to prove the efficacy of the OPAMP.
(15 Marks)
b. What do you understand by the term “slew rate” of an
operational amplifier? Recommend a circuit to
measure this parameter and provide complete
measurement of this parameter using the MULTISIM
environment.
(15 Marks)
 
2. Design an operational amplifier circuit that performs the
mathematical operation of integration with respect to time; that is,
its output voltage is proportional to the input voltage integrated
over time..
(5 Marks)
a. Explain fully the operation of the circuit and derive its
input/output characteristic equation.
(10 Marks)
b. Using MULTISIM show the performance of the circuit
when the input was impressed with the following
waveforms.
i. Square Wave
ii. Triangular Wave
iii. Sine Wave
(10 Marks)
c. Show that if the input is a sine wave of varying
frequency the OPAMP integrator performs like an
active low-pass filter.
(5 Marks)
3. An oscillator is the basic element of all AC signal sources and
generates sinusoidal signals of known frequency and amplitude.
It is one of the basic and useful instruments used in electrical
and electronic measurement. Oscillators are used in many
electronics circuits and systems providing the central clock
signal that controls the sequential operation of the entire
system.
a. Describe the operation of an OPAMP-based oscillator
using the concept of a basic oscillator feedback
circuit. Your description must include all pertinent
equations relating the overall closed loop gain and
the open-loop and feedback gain
(10 Marks)
b. Figure 1 shows the complete schematic diagram of a
variable frequency COLPITTS Oscillator. Use the
MULTISIM platform to simulate the operation of this
oscillator as you vary the values of the inductor, ????,
from 1???????? to 62????????. What is the gain of the oscillator?
(3 Marks)
i. Tabulate the output frequencies versus the
various inductor values.
(7 Marks)
ii. Show the output waveforms as displayed on
the oscilloscope for ten selected
frequencies.
(10 Marks)
iii. Show the output waveforms as displayed on
the spectrum analyzer of the output
amplitude versus frequency.
(10 Marks)
Figure 1: Complete schematic diagram of a COLPITTS Oscillator (Diagram in PDF)
  • attachment

    ASSIGN1Q-201CDE-FEB2021.pdf
 
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Electronic Engineering homework help

 
"Our Prices Start at $11.99. As Our First Client, Use Coupon Code GET15 to claim 15% Discount This Month!!"
   
1. The objective of simulation is to verify and optimize the design.
Simulation can idealize a circuit. The objective of measurement is
to experimentally confirm the specifications. Measurements must
consider all non-idealities.
a. Describe completely the definition of the Common
Mode Rejection Ratio (CMRR) of an operational
amplifier. Recommend a circuit to measure the CMRR.
Use MULTISIM to conduct the measurements of
CMRR. Provide the plot of the CMRR (in dB) versus
Frequency (Hz) to prove the efficacy of the OPAMP.
(15 Marks)
b. What do you understand by the term “slew rate” of an
operational amplifier? Recommend a circuit to
measure this parameter and provide complete
measurement of this parameter using the MULTISIM
environment.
(15 Marks)
 
2. Design an operational amplifier circuit that performs the
mathematical operation of integration with respect to time; that is,
its output voltage is proportional to the input voltage integrated
over time..
(5 Marks)
a. Explain fully the operation of the circuit and derive its
input/output characteristic equation.
(10 Marks)
b. Using MULTISIM show the performance of the circuit
when the input was impressed with the following
waveforms.
i. Square Wave
ii. Triangular Wave
iii. Sine Wave
(10 Marks)
c. Show that if the input is a sine wave of varying
frequency the OPAMP integrator performs like an
active low-pass filter.
(5 Marks)
3. An oscillator is the basic element of all AC signal sources and
generates sinusoidal signals of known frequency and amplitude.
It is one of the basic and useful instruments used in electrical
and electronic measurement. Oscillators are used in many
electronics circuits and systems providing the central clock
signal that controls the sequential operation of the entire
system.
a. Describe the operation of an OPAMP-based oscillator
using the concept of a basic oscillator feedback
circuit. Your description must include all pertinent
equations relating the overall closed loop gain and
the open-loop and feedback gain
(10 Marks)
b. Figure 1 shows the complete schematic diagram of a
variable frequency COLPITTS Oscillator. Use the
MULTISIM platform to simulate the operation of this
oscillator as you vary the values of the inductor, ????,
from 1???????? to 62????????. What is the gain of the oscillator?
(3 Marks)
i. Tabulate the output frequencies versus the
various inductor values.
(7 Marks)
ii. Show the output waveforms as displayed on
the oscilloscope for ten selected
frequencies.
(10 Marks)
iii. Show the output waveforms as displayed on
the spectrum analyzer of the output
amplitude versus frequency.
(10 Marks)
Figure 1: Complete schematic diagram of a COLPITTS Oscillator (Diagram in PDF)
  • attachment

    ASSIGN1Q-201CDE-FEB2021.pdf
 
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Engineering homework help

 
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