11. 2. A 16F873A microcontroller is supplied with 5 V. Its ADC is connected so that...
11. 2. A 16F873A microcontroller is supplied with 5 V. Its ADC is connected so that the voltage reference is taken from its supply voltage and ground. (a) What is the ADC resolution, and what is the value of the ADC digital output, for each of 1.000 V, 2.000 V and 2.500 V? (b) Repeat (a) for if the voltage reference has been changed to an external one, of value 4.096 V.
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11. 2. A 16F873A microcontroller is supplied with 5 V. Its ADC
is connected so that...
11.5 A temperature sensor is connected to a 16F873A ADC input. The sensor has an output...
11.5 A temperature sensor is connected to a 16F873A ADC input. The sensor has an output of 40 mV/?C. The ADC operates with a 4.096 V reference. (a) For a certain temperature value, the ADC output reads 1010011100. What is the equivalent temperature for this reading? (b) The measured temperature is to be displayed on a digital display, showing values in the range 00.0?C to 99.9?C. Describe what data manipulation steps can be taken to achieve this, using fixed-point arithmetic...
(a) We have an analogue to digital converter (ADC) described as 8 bit, with a 3V reference and 0V offset. What is the resolution, expressed in millivolts? [2] (b) For an input voltage of 0.6V, what i...
(a) We have an analogue to digital converter (ADC) described as
8 bit, with a 3V reference and 0V offset. What is the resolution,
expressed in millivolts? [2]
(b) For an input voltage of 0.6V, what is the digital output
value of the ADC described in (a)? Express your answer in both
binary and hexadecimal. [3]
(c) An industrial oven has a thermometer that outputs a voltage
from 0 to 1V for a corresponding range of temperatures of 0 to...
a. An 8-bit successive approximation ADC has a reference voltage of 10 V. Calculate the resolution...
a. An 8-bit successive approximation ADC has a reference voltage of 10 V. Calculate the resolution of this ADC. b. The analog input voltage to the ADC in part a is 6 V. Can this input voltage be represented exactly? What digital code represents the closest value to 6 V? What exact analog value does this represent? Calculate the percent error of this conversion.
2K 2K A2 1 K Al 1K Vout Vi Figure 2 Problem 7. For the signal...
2K 2K A2 1 K Al 1K Vout Vi Figure 2 Problem 7. For the signal Vout obtained from problem 6, assume that we want to use the ADC of the Arduino microcontroller to convert this signal into its corresponding digital representation. The Arduino has a 0-5 V, 10bit ADC with a conversion time of 100 us 1) What is the resolution for the Arduino? 2) What is the maximum frequency of an Analog signal that can be converted using...
The voltage supplied by a wall socket varies with time,reversing its polarity with a constant frequency,...
The voltage supplied by a wall socket varies with
time,reversing its polarity with a constant frequency, as shown in
thegraph. (Intro 1 figure)
Intro Fig.
Fig Part B
1.
What is the rms value of the
voltage plotted in the graph?
Express your answer in volts.
= ?
V
2.
When a lamp is connected to a wall plug,
theresulting circuit can be represented by a simplified AC circuit,
asshown in the figure. (Part B figure) Here the lamp has...
Question 5 (Svnchronous machines) a. A synchronous generator connected to an infinite grid has its frequency and terminal b. A six-pole, Y-connected three-phase synchronous machine rated 208 V (line-...
Question 5 (Svnchronous machines) a. A synchronous generator connected to an infinite grid has its frequency and terminal b. A six-pole, Y-connected three-phase synchronous machine rated 208 V (line-to- voltage fixed. What is the effect of increasing the excitation current in this case? line), 5500 VA has a synchronous reactance of 8 2 per phase at rated terminal voltage. It is operating as a generator connected to an infinite grid Determine the excitation voltage and the power angle if the...
11. The MC1408 is an 8-bit D/A converter with equal reference and output resistors. If the reference voltage is 5.0 V. 4,4,4,4,41 a. What is the voltage step size? Solution Use the circu...
11. The MC1408 is an 8-bit D/A converter with equal reference and output resistors. If the reference voltage is 5.0 V. 4,4,4,4,41 a. What is the voltage step size? Solution Use the circuit below to answer the three questions·LEDI is Yellow andLED2 is AMBER and typically, Vr 1.85 V 8.5 mA. The NAND gates are 741S00 with 0.35 V as typical VoL. Show complete work in the space provided 14.6, 4 a. If A10 and Ai = 1, which LED...
4) output and ground is C (not shown). You should add this capacitor in the figure. Assume that the load capacitor connected between the +2.5 V VDD 1.81 Uo 0 2.22 I M When the input voltage changes f...
4) output and ground is C (not shown). You should add this capacitor in the figure. Assume that the load capacitor connected between the +2.5 V VDD 1.81 Uo 0 2.22 I M When the input voltage changes from VL to VH abruptly at time t 0, (a) In the figure above, draw the path for current flow after the output voltage changes and reaches its new dc value. Draw in the above figure (b) What are the circuit parameters...
2) A 480 V, 60 Hz, 400 hp 0.8 PF-lagging eight-pole A-connected synchronous motor has a...
2) A 480 V, 60 Hz, 400 hp 0.8 PF-lagging eight-pole A-connected synchronous motor has a synchronous reactance of 0.6 and negligible armature resistance. Ignore the mechanical and core losses. The magnitude of the internal machine voltage is 480 V when the field current is 4 A. Assume magnetic linearity. Initially, the motor operates at the rated conditions. a) Find the speed of this motor. b) Find the armature and field currents. c) What is the developed torque? What is...
*USE Multisim( Provide Pictures of work on Multisim for each step) and Fill the Tables Below...
*USE Multisim( Provide Pictures of work on Multisim for each
step) and Fill the Tables Below
PROCEDURE: Review the front panel controls in each of the major groups. Then turn on the oscilloscope, select Chl, set the SEC/DIV to 0.1 ms/div, select AUTO triggering, and obtain a line across the face of the CRT. Although many of the measurements described in this experiment are automated in newer scopes, it is useful to learn to make these measurements manually. Turn on...
(a) We have an analogue to digital converter (ADC) described as
8 bit, with a 3V reference and 0V offset. What is the resolution,
expressed in millivolts? [2]
(b) For an input voltage of 0.6V, what is the digital output
value of the ADC described in (a)? Express your answer in both
binary and hexadecimal. [3]
(c) An industrial oven has a thermometer that outputs a voltage
from 0 to 1V for a corresponding range of temperatures of 0 to...
2K 2K A2 1 K Al 1K Vout Vi Figure 2 Problem 7. For the signal Vout obtained from problem 6, assume that we want to use the ADC of the Arduino microcontroller to convert this signal into its corresponding digital representation. The Arduino has a 0-5 V, 10bit ADC with a conversion time of 100 us 1) What is the resolution for the Arduino? 2) What is the maximum frequency of an Analog signal that can be converted using...
The voltage supplied by a wall socket varies with
time,reversing its polarity with a constant frequency, as shown in
thegraph. (Intro 1 figure)
Intro Fig.
Fig Part B
1.
What is the rms value of the
voltage plotted in the graph?
Express your answer in volts.
= ?
V
2.
When a lamp is connected to a wall plug,
theresulting circuit can be represented by a simplified AC circuit,
asshown in the figure. (Part B figure) Here the lamp has...
Question 5 (Svnchronous machines) a. A synchronous generator connected to an infinite grid has its frequency and terminal b. A six-pole, Y-connected three-phase synchronous machine rated 208 V (line-to- voltage fixed. What is the effect of increasing the excitation current in this case? line), 5500 VA has a synchronous reactance of 8 2 per phase at rated terminal voltage. It is operating as a generator connected to an infinite grid Determine the excitation voltage and the power angle if the...
11. The MC1408 is an 8-bit D/A converter with equal reference and output resistors. If the reference voltage is 5.0 V. 4,4,4,4,41 a. What is the voltage step size? Solution Use the circuit below to answer the three questions·LEDI is Yellow andLED2 is AMBER and typically, Vr 1.85 V 8.5 mA. The NAND gates are 741S00 with 0.35 V as typical VoL. Show complete work in the space provided 14.6, 4 a. If A10 and Ai = 1, which LED...
4) output and ground is C (not shown). You should add this capacitor in the figure. Assume that the load capacitor connected between the +2.5 V VDD 1.81 Uo 0 2.22 I M When the input voltage changes from VL to VH abruptly at time t 0, (a) In the figure above, draw the path for current flow after the output voltage changes and reaches its new dc value. Draw in the above figure (b) What are the circuit parameters...
2) A 480 V, 60 Hz, 400 hp 0.8 PF-lagging eight-pole A-connected synchronous motor has a synchronous reactance of 0.6 and negligible armature resistance. Ignore the mechanical and core losses. The magnitude of the internal machine voltage is 480 V when the field current is 4 A. Assume magnetic linearity. Initially, the motor operates at the rated conditions. a) Find the speed of this motor. b) Find the armature and field currents. c) What is the developed torque? What is...
*USE Multisim( Provide Pictures of work on Multisim for each
step) and Fill the Tables Below
PROCEDURE: Review the front panel controls in each of the major groups. Then turn on the oscilloscope, select Chl, set the SEC/DIV to 0.1 ms/div, select AUTO triggering, and obtain a line across the face of the CRT. Although many of the measurements described in this experiment are automated in newer scopes, it is useful to learn to make these measurements manually. Turn on...
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