...ECET 365 week 1 homework Pgs 454-455 Austin Salankey 5/3/2016 DeVry University 8.9 A stepper motor has 24 North teeth and 24 South teeth. What angle change occurs on each step? If a full step is output every 1 ms (and assuming it doesn’t slip), at what speed does the motor spin? ANSWER: 360°/(4n) = 360°/[4(24)] = 360°/96 = 3.75° Revolutions per Second (4f/N) = 4(1000s)/(96) = 4000/96 = 41.667rps -or- 41.667rps(60sec) = 2500rpm 8.10 Draw a figure similar to Figure 8.80 showing how half stepping works. D8.13) Design an interface for a +24 V, 500 mA geared DC motor. The time constant of the motor is 10 ms. Include software to adjust the delivered power from 0 to 100%. Answer: I chose the TIP120 because it can sink at least 3 X the current needed for this motor. The base current is: I_b=I_coil/h_fe =0.5A/1000= 0.5mA Disired interface resistor = R_(b )≤((V_OH- V_be ))/I_(b ) = 5KΩ Now to make PWM 10 times faster than the 10 mS we go to 1mS; or a frequency of 1kHz // MC912 C32 C // 1 ms PWM on PT0 void PWM_Init (void) { MODRR |= 0x01; // Port T, pin 0 is connected to PWM system PWME |= 0x01; // Enable PWM Channel 0 PWMPOL |= 0x01; // PT0 High then Low PWMCLK |= 0x01: // Clock SA PWMPRCLK = (PWMPRCLK & 0xF8) | 0x04; // A = E/16 PWMSCLA |= 5; //SA = A/10, 0.25*160 = 40 us PWMPER0 = 25; ...
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...Homework 1_1 ECET310 1. Add: (a) 60 dB + 25 dB= 85 dB (b) 20 dBW + 5 dBW= 25 dBW (c) 22 dB - 4 dB= 18 dB 2. Convert: (a) 65 W into dB= 18.1 dB (b) 10 dB into watts= 10/10 = log x => 10W (c) – 5 dB into watts= 5 = 10 log x x=10 ^(-5/10) = 0.316W (d) –30 dBm into dBrn= 30 dBrun (e) 15 dBrn into dBm= 10 log (p/1mW) 15/10= log (p/1mW) 1.5 =log (p/mW) = -15dB 2. A three-stage amplifier is shown with power gains. Calculate total power gain in decibels, and as a number. Ap(tot)=(Ap1)(Ap2)(Ap3)=7500 Ap(tot) (dB) = 10 log(10) +10 log (25) +10 log(30) = 38.75dB 3. (a) Determine the overall power gain. (b) Find the output power if Pin = 15 mW a) Ap(t) = (10)(10)(20) = 2000 b) Po = (Pin)(Ap(t)) = (15mW)(2000) = 30W 4. If Pin = -20 dBm, determine the output power in dBm and watts. Ap(t) = 13+16-6 = 23dB Ap(t) = log^-1 (23/10) = 199.526 Pin = -20dBm = (1mW)(log^-1(-20/10)) = 1mW* 10^-2 = 10 uW Po = (Pin)(Ap(t)) = 10u*199.526 = 1.995 mW Po(dBm) = 10 log (Po)/1mW = 10 log (1.995mW/1mW) = - 27dBm 5. Determine: (a) Net gain (b) Net gain in dBs (c) Power output (a) Net...
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...------------------------------------------------- ECET-402 Week 6 Lab Worksheet Name: John Natale Block Diagram Simplification and Step/Impulse Responses Please complete this worksheet and submit to week 6 lab dropbox This worksheet serves as coversheet 1. Determine the overall transfer function of the system given below by hand as discussed in pre-lab. Please show your work and type the equations if you can. TF=(Y(s))/(X(s))=((s^3+3s^2+3s+2)/(〖2s〗^4+6s^3+15s^2+12s+5))/(1+(s^3+3s^2+3s+2)/(〖2s〗^4+6s^3+15s^2+12s+5)×2/s)=(s^4+3s^3+3s^2+2s)/(2s^5+6s^4+17s^3+18s^2+11s+4) TF=(Y(s))/(X(s))=(s^4+3s^3+3s^2+2s)/(2s^5+6s^4+17s^3+18s^2+11s+4) 2. Determine the overall transfer function of the system shown above using MATLAB. Copy the MATLAB code and the overall transfer function obtained and paste them below: >> nG1 = [1 0]; >> dG1 = [1]; >> G1 = tf (nG1, dG1) Transfer function: >> nG2 = [1]; >> dG2 = [1 1]; >> G2 = tf (nG2, dG2) Transfer function: 1 ----- s + 1 >> nG3 = [1]; >> dG3 = [1 0]; >> G3 = tf (nG3, dG3) Transfer function: 1 - s >> nG4 = [1 2]; >> dG4 = [1 2 5]; >> G4 = tf (nG4, dG4) Transfer function: s + 2 ------------- s^2 + 2 s + 5 >> nG5 = [2]; >> dG5 = [1 0]; >> G5 = tf (nG5, dG5) Transfer function: 2 - s >> G6 = series (G1, G2) ...
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...======================================== DeVry College of New York ECET 370 HW #1: Dynamic 2D-array ------------------------------------------------- Objective: Write a program to calculate students’ average test scores and their grades. You may assume the following file input data: Johnson 85 83 77 91 76 Aniston 80 90 95 93 48 Cooper 78 81 11 90 73 Gupta 92 83 30 69 87 Blair 23 45 96 38 59 Clark 60 85 45 39 67 Kennedy 77 31 52 74 83 Bronson 93 94 89 77 97 Sunny 79 85 28 93 82 Smith 85 72 49 75 63 Use three arrays: a one-dimensional array to store the students’ names, a (parallel) two-dimensional array to store the test scores, and a parallel one dimensional array to store grades. Your program must contain at least the following functions: a function to read and store data into two arrays, a function to calculate the average test score and grade, and a function to output the results. Have your program also output the class average. Tools required: PC & Visual studio software Code: #include <iostream> #include <fstream> #include <sstream> #include <string> using namespace std; bool readStudentData(ifstream &inFile, string &name, int &score1, int &score2, int &score3, int &score4, int &score5) { string line; if (getline(inFile, line)) { string word; istringstream iss(line, istringstream::in); int count = 0; try { while (iss >> word) { //cout...
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...ECET 340 Week 6 HomeWork 6 Purchase here http://devrycourse.com/ecet-340-week-6-homework-6 Product Description 1. What are the four main functions of the HC12 Timer unit? 2. Two input capture events occur at counts 0x1037 and 0xFF20 of the free-running counter. How many counts (in decimal) have transpired between these two events? 3. What is the maximum time possible before the free-running counter overflows when the e MHz? 4. Two input capture events occur at 0x1037 and 0x002A. If the prescaler bits PR[2:1:0] are set to 101 and the e clock is 24 MHz, how much time as transpired between the two events? 5. Calculate the count that should appear in the timer capture register TC0 if a 125 kHz rectangular wave is inputted on timer pin PT0 while TCTL4 is preset for falling edge detection. Assume a 24 MHz e-clock, TMSK2 was programmed with the value $02, and the count of the 1st edge event has already been subtracted off from TC0. 6. Write down the name of the HC12 timer register that should be polled through software to determine whether or not an active input edge has been captured on one of the port T pins. 7. What is the duty cycle of a signal produced by the PWM when and ? a. 28.0% b. 29.8% c. 50.0% d. 72.0% 8. What values are required for period and duty cycle to generate a 6.0 kHz, 95% duty cycle waveform using the PWM function? Assume e-clock frequency is 24 MHz. 9. What is the slowest clock signal that can be generated from the PWM output...
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...ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 Product Description ECET 340 Week 7 iLab 7 ECET 340 Week 7 iLab 7 Purchase here http://devrycourse.com/ecet-340-week-7-ilab-7 ...
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...ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 Product Description ECET 340 Week 6 iLab 6 ECET 340 Week 6 iLab 6 Purchase here http://devrycourse.com/ecet-340-week-6-ilab-6 ...
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...ECET 220 Week 1-6 Homework Problems https://homeworklance.com/downloads/ecet-220-week-1-6-homework-problems/ ECET 220 Week 1-6 Homework Problems ECET 220 Week 1 Homework problems ECET 220 Homework 1 • Reading Chapter 3: Bipolar Junction Transistor (pp. 131–158) Chapter 4: DC Biasing-BJTs (Sections 4.1–4.5: pp. 161–182) Homework Problems o Chapter 3: Problems 2, 8, 11, 14, 17, 22, and 34 (pp. 158–160) o Chapter 4: Problems 2, 4, 7, and 14 (pp. 233–236) ECET 220 Week 2 Homework Problem ECET 220 Homework 2 • Reading Chapter 4: DC Biasing-BJTs (Sections 4.15, 4.16: pp. 206-212) Chapter 5: BJT AC Analysis (Sections 5.1-5.6: pp. 246-260) Homework Problems o Chapter 5: Problems 1, 7, 8, and 12 (pp. 353-354) ECET 220 Week 3 Homework Problems • Chapter 6: Problems 2, 6, 16, and 17 (pp. 408-409) • Chapter 7: Problems 1, 2, 6, and 11 (pp. 466-467) • Chapter 8: Problems 3, 12, 17, and 23 (pp. 529-531) ECET 220 Week 4 Homework Problems ECET 220 Wk 4 Homework Problems o Chapter 10: Problems 1, 2, 4, 5, 6, 9, and 12 (pp. 635-637) ECET 220 Week 5 Homework Problems Homework Problems • Chapter 10: Problems 8, 13, 16, 24, and 29 (pp. 637-640) • Chapter 11: Problems 2, 3, 6, 8 (pp. 665-667) ECET 220 Week 6 Homework Problems Homework Problems • Chapter 10: Problem 10 (p. 637) • Chapter 11: Problems 2, 5, 6, 7, and 14 (pp....
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...ECET 340 Week 6 Homework 6 To Buy This material Click below link http://www.uoptutors.com/ecet-340-devry/ecet-340-week-6-homework-6 1. What are the four main functions of the HC12 Timer unit? 2. Two input capture events occur at counts 0×1037 and 0xFF20 of the free-running counter. How many counts (in decimal) have transpired between these two events? 3. What is the maximum time possible before the free-running counter overflows when the e MHz? 4. Two input capture events occur at 0×1037 and 0x002A. If the prescaler bits PR[2:1:0] are set to 101 and the e clock is 24 MHz, how much time as transpired between the two events? 5. Calculate the count that should appear in the timer capture register TC0 if a 125 kHz rectangular wave is inputted on timer pin PT0 while TCTL4 is preset for falling edge detection. Assume a 24 MHz e-clock, TMSK2 was programmed with the value $02, and the count of the 1st edge event has already been subtracted off from TC0. 6. Write down the name of the HC12 timer register that should be polled through software to determine whether or not an active input edge has been captured on one of the port T pins. 7. What is the duty cycle of a signal produced by the PWM when and ? a. 28.0% b. 29.8% c. 50.0% d. 72.0% 8. What values are required for period and duty cycle to generate a 6.0 kHz, 95% duty cycle waveform using the PWM function? Assume e-clock frequency is 24 MHz. 9. What is the slowest clock signal that can be generated from the PWM output...
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...Chapter 3 Problems: 1, 2, 5, 6, 9, 13. 1. What is the exact value of IC for IE = 5.34 mA and IB = 47.5 μA? Answer: IC = IE-IB = 5.34-0.0475 IC = 5.29mA 2. A certain transistor has an IC = 25 mA and an IB = 200 μA. Determine the βDC. Answer: BDC = IC/IB = 25/200 BDC = 0.125 5. Determine the IB, IC, and VC for the transistor circuit in Figure 3–66. Assume βDC = 75. Answers: IB = (VBB-VB)/(RB) = (2.0-0.7)/(4.7) = 0.276mA IC = βDC*IB = 75 * 0.276mA = 20.7mA VC = VCC – IC*RC = 24V – (20.7mA) ( 0.43Ω) = 15.1V 6. Draw the dc load line for the transistor circuit in Figure 3–67. Answer: IC(Sat) = VCC/RC = 10V/1.0kΩ = 10mA VCE = VCC = 10V 9. Repeat Problem 8 for βDC = 300. (Hint: The transistor is now saturated!) (8. For the base-biased npn transistor in Figure 3–68, assume βDC = 100. Find IC and VCE.) Answers: IC = βDC(VRB/RB) = 300(9.3V/680kΩ) = 300(13.67x10^-6) = 4.103mA VCE = VCC – (IC)(RC) = 10 – ( 4.108mA)(2.7kΩ) = 10 – 11.08 = -1.08V 13. For the voltage-divider biased circuit in Figure 3–71, determine Answers: R1 and R2 set up a voltage divider on the base. VBE = VB = R2/(R1 +R2) *VCC ...
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...ECET 220 Week 1-6 Homework Problems https://homeworklance.com/downloads/ecet-220-week-1-6-homework-problems/ ECET 220 Week 1-6 Homework Problems ECET 220 Week 1 Homework problems ECET 220 Homework 1 • Reading Chapter 3: Bipolar Junction Transistor (pp. 131–158) Chapter 4: DC Biasing-BJTs (Sections 4.1–4.5: pp. 161–182) Homework Problems o Chapter 3: Problems 2, 8, 11, 14, 17, 22, and 34 (pp. 158–160) o Chapter 4: Problems 2, 4, 7, and 14 (pp. 233–236) ECET 220 Week 2 Homework Problem ECET 220 Homework 2 • Reading Chapter 4: DC Biasing-BJTs (Sections 4.15, 4.16: pp. 206-212) Chapter 5: BJT AC Analysis (Sections 5.1-5.6: pp. 246-260) Homework Problems o Chapter 5: Problems 1, 7, 8, and 12 (pp. 353-354) ECET 220 Week 3 Homework Problems • Chapter 6: Problems 2, 6, 16, and 17 (pp. 408-409) • Chapter 7: Problems 1, 2, 6, and 11 (pp. 466-467) • Chapter 8: Problems 3, 12, 17, and 23 (pp. 529-531) ECET 220 Week 4 Homework Problems ECET 220 Wk 4 Homework Problems o Chapter 10: Problems 1, 2, 4, 5, 6, 9, and 12 (pp. 635-637) ECET 220 Week 5 Homework Problems Homework Problems • Chapter 10: Problems 8, 13, 16, 24, and 29 (pp. 637-640) • Chapter 11: Problems 2, 3, 6, 8 (pp. 665-667) ECET 220 Week 6 Homework Problems Homework Problems • Chapter 10: Problem 10 (p. 637) • Chapter 11: Problems 2, 5, 6, 7, and 14 (pp....
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...ECET 220 Week 2 Lab Answers ( graded ) Follow Below Link to Download Tutorial https://homeworklance.com/downloads/ecet-220-week-2-lab-answers-graded/ For More Information Visit Our Website ( https://homeworklance.com/ ) Email us At: Support@homeworklance.com or lancehomework@gmail.com Week 2 Lab Instructions Bipolar Junction Transistor – Biasing 1. Objectives • To analyze a normally biased BJT circuit comprising of a BJT and resistors and measure the circuit voltages between emitter, common, base, and collector. • To theoretically calculate and verify the circuit using Ohm’s Law, KCL and KVL. • Determine the voltage drop across the collector load resistance and measure the current passing through the emitter and collector resistors. 1. Equipment and Parts List Equipment: • IBM PC or compatible • DMM (digital multimeter) • Variable dc power supply Parts: Qty. Component Tolerance Band Wattage Rating, W 1 2N3904 Transistor 6 10 K Ω Resistor gold ¼ 1 Proto Board Hookup wires of different colors Software: MultiSim III. Procedure 1. Theoretical Analysis 1. Given the circuit in Figure 1, calculate the total resistance between the base and VCC in kΩ and the total collector resistance (combination of R3 and R4) in kΩ. Enter the values obtained in Table 1 on the worksheet. Figure 1 2. Given Figure 1, calculate the circuit voltages cited below entering the values in Table 2 on the worksheet...
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...ECET 220 Week 2 Lab Answers ( graded ) Follow Below Link to Download Tutorial https://homeworklance.com/downloads/ecet-220-week-2-lab-answers-graded/ For More Information Visit Our Website ( https://homeworklance.com/ ) Email us At: Support@homeworklance.com or lancehomework@gmail.com Week 2 Lab Instructions Bipolar Junction Transistor – Biasing 1. Objectives • To analyze a normally biased BJT circuit comprising of a BJT and resistors and measure the circuit voltages between emitter, common, base, and collector. • To theoretically calculate and verify the circuit using Ohm’s Law, KCL and KVL. • Determine the voltage drop across the collector load resistance and measure the current passing through the emitter and collector resistors. 1. Equipment and Parts List Equipment: • IBM PC or compatible • DMM (digital multimeter) • Variable dc power supply Parts: Qty. Component Tolerance Band Wattage Rating, W 1 2N3904 Transistor 6 10 K Ω Resistor gold ¼ 1 Proto Board Hookup wires of different colors Software: MultiSim III. Procedure 1. Theoretical Analysis 1. Given the circuit in Figure 1, calculate the total resistance between the base and VCC in kΩ and the total collector resistance (combination of R3 and R4) in kΩ. Enter the values obtained in Table 1 on the worksheet. Figure 1 2. Given Figure 1, calculate the circuit voltages cited below entering the values in Table 2 on the worksheet...
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...Pages 454–455, Problems 8.9, 8.10, D8.13, D8.14, D8.15. 8.9 A stepper motor has 24 North teeth and 24 South teeth. What angle change occurs on each step? If a full step is output every 1 ms (and assuming it doesn’t slip), at what speed does the motor spin? The shaftwill rotate 360°/(4 · n) per step. 360 / (4 * 24) = 3.75 degrees of change occurs on each step. If a stepper motor with 50 teeth North and South has 200 spr then 24 teeth should be about 100 spr. Rps = 4f/N = 4 * 1MHz / 100 = 40000 rps. 8.10 Draw a figure similar to Figure 8.80 showing how half stepping works. N N S S S S S S N N N N S S N N D8.13 Design an interface for a ±24 V, 500 mA geared DC motor. The time constant of the motor is 10 ms. Include software to adjust the delivered power from 0 to 100%. D8.14 Design an interface for a ±12 V, 500 mA bipolar stepper motor. There are 200 steps/revolution. Write software to spin the motor at 1 rps. D8.15 An alarm is powered by 120 VAC, and the on/off state of the alarm is controlled by an EM relay. Design the interface between a computer output port and the EM relay. The dropout voltage is 3.5 V, and the coil current needs at least 100 mA. Limit the coil voltage to 6 V. Write three software functions: Alarm_Init, Alarm_On, and...
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...DORINGO, Ma. Rochelle. C. / Regular / Non-Graduating Class Placement #16 12-006-124 ECET-2C Reflection paper March 21, 2014 March 21, 2014 Professor Darius Daniel Villanueva It is very significant and important for us to gauge or determine how much, us, students have learned after a psychology class. It enables us to gain knowledge that can be applied in the future, giving us more opportunities in succeeding our goals. This learning had an impact in my life, making me more of a responsible one. Comparing my knowledge before and after, my knowledge before is that I have very limited information in my mind like I don't have enough information in order to cope up with the waves of lessons our instructor about to tackle. It's like guessing in an "On-the-spot exam", not having any specific questions in mind to guide our learning though our instructor is preparing learning opportunities. While my knowledge after class, as Instructor guided the process with feedback and mini-lectures we continue applying our knowledge skills after clarification and feedback. We are able to understand and gain ideas in class and on later events these gained ideas will be our piece of information in guiding actions. I also learned a variety of writing elements such as written reports, reflection papers, news sharing and principles to guide my future writing. I learned how to better edit, read, and compose documents. All exercises were useful and helped highlight key writing...
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