...------------------------------------------------- Lab Final Unit 11 Lab Final: Voltage Regulator with Constant Current Limiting (PORTFOLIO) Scope and Intention of the Project: The Lab Final Project is a self-directed project with specific requirements provided. You will be given a design task which utilizes a standard circuit in the textbook. You will apply knowledge that has been acquired in lecture, assignments, and previous labs. Task: Your task is to design, simulate, build and test a voltage regulator with constant current limiting as shown in Fig. 11-7 on page 559, Chapter 12 in the textbook. In addition to providing a circuit which operates to the specified functionality, you will submit a project report with required format and contents. D1 D1 This circuit is to be built according to the following specifications: * Input Voltage Range: + 9 V DC to +15 V DC * Q1 and Q2: 2N3904 Transistor * D1: 1N4733 Zener Diode * R1 = 1.0 kΩ, R2 = 10 kΩ, R3 = 10 kΩ, R4 = 1.0 Ω * Nominal Output Voltage: + 10 V DC * Max. Output Current: 500 mA Required Test Data: 1. Line regulation for input voltage changes from +9 V to +15 V 2. Load regulation for load changes from open circuit to 1000 Ohm load resistance 3. Graph of output voltages for at least 5 different input voltages, using a 150 Ohm load resistor 4. (Y-axis scaled for output voltage, x-axis scaled for resistive load) 5. Graph of output voltages for at least 5 different...
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...EE2031 Circuit and Systems Design Lab Mini-Project Report Voice Disguiser Presented by: Friday Room 3 Group 7 Wang Ke (A0105276J) Wu Jianxiao (A0099910W) 1.Introduction 1.1 Aim During the 6 hands-on individual labs before this mini project, we have learnt the design and implementation of filter and oscillator, together with applied characterization of different components. The objective of Mini-Project was for students to demonstrate their innovative design skills and implement knowledge learnt in lectures to real-life product design. Therefore, we aimed to integrate what we learnt in individual labs into one single product, which is a Voice Disguiser that can solve practical problems of witness protection. 1.2 Motivations and Inspiration According to Maslow’s Hierarchy of Needs, safety is the second most basic need of human being. However, in some lawsuit trail and media interviews, the safety of witnesses is at risk when they come forward to disclose the truth. A study of Columbia University shows that 71% of witnesses said they feel threatened by the offenders (Brendan & Rajiv, 2007). Therefore, it is necessary to use a Voice disguiser to protect witnesses from being recognized based on their originally identifiable voice. And this issue inspires me to design a voice disguiser. After consulting lab TAs and lecturer, we found that this idea is feasible based on limited lab conditions and time constrains 1.3 List of Materials No. 1 3 4 5 ...
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...11:30 - 1:00 4 1:30 - 3:00 5 3:00 - 4:30 HUM-Dr. Musferah Mehfooz 6 4:30 - 6:00 7 6:00 - 7:30 Subjects Count English Physics for Chemical Comprehension and Engineers Composition Islamic Studies N-7 HUM-Huma Ijaz N-1 Math-Imran Zulfiqar Chem-Amjad Riaz Cheema Chemical Process Principles I N-11 Calculus I 2 Chemical Process Principles I 2 English Comprehension and Composition 2 Islamic Studies 2 Lab-Engineering Drawing 2 Lab-Physics for Chemical Engineers 2 Physics for Chemical Engineers 2 Tuesday Monday English Comprehension and Composition Calculus I N-7 N-12 Chem-Amjad Riaz N-11 Wednesday Phy-Dr. Saif Ur Rehman Physics for Chemical Chemical Process Engineers Principles I N-18 HUM-Dr. Musferah Mehfooz N-19 Math-Imran Zulfiqar Cheema Dr. Saif Ur Rehman / Dr. Ishrat Sultana Thursday Islamic Studies Calculus I Lab-Physics for Chemical Engineers N-15 N-3 Applied Physics Lab Chem-Muhammad Imran Rafiq Friday Lab-Engineering Drawing PC Lab-C Lessons/week 14 Timetable generated:11/13/2014 aSc Timetables Final Time Table - Fall 2014 ( v 20141113-1130 ) CIIT_Lahore FA14-BEC-B (Semester 1) (DDP) 2 10:00 - 11:30 Math-Syed Tahir Raza Rizvi 1 8:30 - 10:00 HUM-Huma Ijaz 3 11:30 - 1:00 4 1:30 - 3:00 5 3:00 - 4:30 6 4:30 - 6:00 7 6:00 - 7:30 Subjects Count English Comprehension and Composition Calculus I N-10 Phy-Dr....
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...Unit 7 Assignments Multiple Choice: 1. A 2. A,B 3. A,B 4. B 5. D 6. B,D 7. A 8. A 9. C 10. D 11. C 12. C 13. B,C 14. C 15. B,C 16. B,D 17. C 18. D 19. C,D 20. B,C Key Terms: Switched circuit- A circuit created by the phone company in reaction to signaling (the user tapping telephone keys or a modem sending in the same digits), with the telco tearing down the circuit when the user is finished. Dedicated circuit- An electrical circuit created by a telco on behalf of a customer, with the circuit staying up all the time, dedicated for use by the one customer that ordered the circuit. Also known as a leased line, leased circuit, and point-to-point line Circuit switching- The overall process by which a series of telco devices called circuit switches connect a circuit from one customer device to the other, with the device’s logic taking incoming bits on one segment in the link and forwarding those bits out the matching outgoing segment, without storing the bits Packet switching- the process of forwarding customer data in a WAN by looking at the header of the messages sent into the WAN by the customer and making a per-message decision as to where to forward each message. Leased line- A physical link between two locations, provided by a telco, that allows two-way communication between sites. Because the customer does not own the physical line between sites, but rather pays a monthly fee for the service...
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...Computer Systems EEL 3701L Lab 6: BCD to Seven Segment Display Decoder Due: November 3, 2014 Meghan Szatkowski, Brandon Burrows, Michael Long Abstract: For this lab we were to create a circuit that displays decimal numbers from binary numbers since most humans are not capable of reading binary. Using a 7-segment display we are able to achieve that by converting the BCD value into a 7 bit output. The 7-segment display has 7 LEDs and a certain amount of voltage triggers each of the 7 segments to produce a decimal number. Procedure 1. Create a truth table for your 4 bit input and the corresponding output necessary to light the proper segments of the display. For example, if the input is represented by WXYZ and the output is identified as ABCDEFG then if the input is 0000, all outer LEDs should be lit while the middle LED should be off. Once you create the rows in a truth table for the other 9 combinations, find the function for each segment. 2. Depending on whether you are dealing with more 0s or 1s, choose NAND or AND gates to implement each segment function. 3. Wire the input DIP switches to the decoder input. Note that you have 2 3x8 decoders. You will need to use the inputs and enable lines to combine them in order to implement these 7 functions. 4. Wire the NAND or AND gates to the proper outputs of the decoders in order to implement the functions for each segment. 5. Wire the outputs of the gates to the proper pin on the 7-segment display (refer...
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...State University of New York at Stony Brook Department of Electrical and Computer Engineering ESE218 Digital Systems Design Lab 9. Counter design. 1. Objectives - Design of the synchronous finite state machine (FSM) with D-flip-flops and multiplexers - Verification of the circuit behavior with a CAD tool 2. Problem description Design the synchronous 4-bit counter which outputs follow the predetermined repeated sequence of states. The sequence of states represents the sequence of decimal digits of your ID number with the following exceptions: (1) digits which appear more than ones have to be deleted; (2) digit 9 has to be added at the end of the sequence if your ID has no 9. For example, for ID number 105123456 the second 1 and 5 are deleted and 9 is added at the end resulting in sequence 10523469. In the binary form the sequence is shown in Figure 1. The initial state is not critical. State 9 should be decoded to generate special signal SYNC shown in denominator in Figure 1. In the prelab: the circuit behavior has to be verified in OrCAD. The maximum clock frequency has to be calculated using timing specs of the flip-flops and multiplexers (logical gates) from datasheet. In the experiment: first, the functionality of the counter has to be tested with a pushbutton that controls the clock and a 7-segment LED display connected to the outputs. Finally, the counter sequence should be demonstrated with the logic analyzer synchronized with SYNC signal, 4inputs of the logic analyzer...
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... 200832100 Abdulillah Al-Saaedi 200832820 15th of December, 2012 ACKNOWLEDGEMENTS We would like to express our gratitude towards all the people who have contributed their precious time and efforts to help us in completing this project. We would like to thank Dr. Chokri Belhaj Ahmed, our Project Supervisor for his guidance, support, motivation and encouragement throughout the period of this project. We would like to thank Dr. Alaa El-Din Hussein Ahmed, for his precious time and efforts to help us in completing this project. We would also like to thank the Department of Electrical Engineering for providing us with a good environment, facilities and the equipment to complete this project. We are also grateful to the lab technician Mr. Edmana Abbas for support and help. ABSTRACT Solar energy has become an alternative source of energy. Several researches have been focused on the photovoltaic (PV) systems efficiency development and the availability of this technology. Today, PV power generation has gained more consequence due to its numerous advantages such as fuel free, no maintenance and environmentally green. This report gives a smart approach for the improvement of the PV control performances. Photovoltaic systems normally use a maximum power point tracking (MPPT) technique to nonstop deliver the highest possible power to the load when even when atmospheric condition change suddenly. In order to achieve this goal, a special interest was focused on both...
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...Theory A PN junction is formed by the combination of a doped p- type and n-type semi conductors that are in contact. The p-type is usually doped with B or Al, while the n-type is usually doped with P, As, or Sb. The interface between these two types of doped semiconductor (p-type, n-type) materials is also known as a P-N junction. P-N junctions are very important in making most semiconductor electronic devices such as integrated circuits, LED’s and transistors. This is because all electronic action in the above devices takes place at the P-N junctions. For example there are two p-n junctions in series in the bipolar junction transistor, which is a type of transistor. [pic] Figure 1: An example of a P-N Junction. Objectives The objectives of this experiment were to investigate the DC current-voltage characteristics of the PN junction diode, Experimentally verify theoretical model developed in lecture and extract ideality factor, and reverse saturation current. Produce a piece-wise linear model for the diode and Compare closed form, piece-wise linear model, and PSPICE simulations with experiment. A set of formulae was given in order to aid in the process of solving variables within the experiment. Some useful formulae in our experiment can be given the equations below. [pic] (1) [pic] (2) And the diode equation is: ...
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...objectives of “Lab 8: Lemon Car Competition” were to use redox reactions to store energy in capacitors, to learn about battery cells and construct a lemon citrus cell to power devices, and to build a vehicle powered by either a lemon battery or a capacitor to be entered in a competition. The competition objective was to win the competition. The winner was the vehicle with the highest competition ratio, which was calculated using Equation 1 below. To have the highest competition ratio, the cost and time traveled were minimized and the distance traveled was maximized. The designed vehicle came in last place along with three other vehicles because it did not travel. The car costed $3.50 and traveled 0 foot, so the competition ratio was zero....
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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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...Instructions: * Complete Part 1 of Lab 3. Once you have completed Lab 3-Part 1, complete the Lab Report. * Answer the questions and transcribe/transfer test results recorded in the lab’s tables to the tables provided. * Complete Part 2 of Lab 3. Once you have completed Lab 3-Part 2, complete the Lab Report. * Answer the questions and transcribe/transfer test results recorded in the lab’s tables to the tables provided. * Complete Part 3 of Lab 3. Once you have completed Lab 3-Part 3, complete the Lab Report. * Answer the questions and transcribe/transfer test results recorded in the lab’s tables to the tables provided. ------------------------------------------------- Part 1- Comparators and the Schmitt Trigger Theory: 1. What is the purpose of a comparator? A comparator is a switching device that provides a high or low output depending on which of the inputs is bigger. 2. What type of circuit uses hysteresis to avoid rapid switching due to noise? Schmitt Trigger Preparation: 3. Describe the transfer curve of a basic comparator circuit. The horizontal axis represents the input and the vertical axis represents the output Test Procedure: 4. Transcribe the comparator waveforms from Plot 22-1 to the Plot below. Plot 22-1: Comparator waveform 5. Describe how the threshold voltage changes the comparator output. As V+ increases, the output pulse width decreases. When V- decreases, the output pulse width increases...
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...Science Course: Electronic Devices & Circuits Course ID: CEN304 Course Lecturer: Dr.Montasir Qasymeh Lab 1: DC& ACCharacteristics of Diodes Prepared by: Eng. Ahmed Sweleh Date: 20/9/2012 1 Objectives: This lab aims to educate the student in the following:1. 2. 3. 4. Putting the diodein reverse bias and forward bias. Measuring forward current (IF) and reverse current (IR). Observing the AC characteristics of a diode. Plotting the characteristic curve of a diode. Tools: For this lab the following tools will be used:1. 2. 3. 4. 5. 6. 7. 8. 9. Breadboard Digital Multi Meter DC Power Supply Function Generator Oscilloscope Breadboard Cables Crocodile Clip Cables Resistors Silicon Diode1n4148 Introduction Diodes can be characterized interims of their doping material or application. An example of doping material we have: Silicon diodes (VF = 0.7v). An example on application we have the light emitting diode (LED). In theory you toke that a diode consists of two sides: Positive “+” side (P-type or Anode) Negative “-“ side (N-type or Cathode) As we can see in Figure 1(C), we can tell which side of the diode in real life is the cathode by looking for the stripe mark on the diode. In case of LEDs the short leg is the cathode. 2 Figure 1 Procedure: 1. Putting the diode in reverse biasand forward bias. Measure the voltage across the diode when it’s in forward and reveres bias in this experiment. Connect your circuit and site the voltage to 5V as shown...
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...Unit 7 Assignment 1 Multiple Choice 1.) A 11.) C 2.) A, B 12.) A 3.) B, D 13.) A, D 4.) A 14.) C 5.) A 15.) B, C 6.) B, D 16.) B, D 7.) A 17.) C 8.) C 18.) B, D 9.) C 19.) A, C 10.) D 20.) B, C Key Terms Switched circuit - A circuit established through one or more intermediate switching devices, such as circuit switches or packet switches. Dedicated circuit - it is used in reference to a phone or data line, or to an electrical circuit. Circuit switching - a methodology of implementing a telecommunications link in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate. Packet switching - a digital networking communications method that groups all transmitted data into suitably sized blocks that are transmitted through a medium that may be shared by multiple simultaneous communication sessions. Leased line - connects two locations for private voice and/or data telecommunication service. Time-division multiplexing -a method of transmitting and receiving independent signals over a common signal path by means of synchronized switches at each end of the transmission line so that each signal appears on the line only a fraction of time in an alternating pattern. T-carrier system – one of several digital transmission systems developed by Bell Labs, sometimes called T-CXR. DS0 – a standard digital transmission rate for digital telecommunications, stands for Digital Signal Zero. DS1 –...
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...------------------------------------------------- ECET-402 Week 2 Lab – Acquiring Temperature & Signal Conditioning This lab actually consists of two separate but related labs. They will be presented in Parts A and B. Objective: The objective of this lab is to use an LM34 temperature sensor to acquire temperature and display it in an 8-bit binary number using LEDs and designing simple signal conditioning circuits using op-amps. Parts Needed: 1. Multisim 8 (or higher) 2. LM34 Temperature Sensor 3. ADC0809 4. 8 LEDs 5. Wires, wire cutter, and wire stripper 6. Adjustable DC Power Supply 7. Function Generator and DMM Part A – Temperature Sensor We will use an LM34 temperature sensor IC to measure temperature in Fahrenheit degrees. We will then convert the analog output voltage of the sensor to an 8-bit digital signal using the Analog to Digital converter ADC0809. Finally we will use 8 LEDs to display an 8-bit binary number representing the temperature. LM34: The LM34 series are precision integrated-circuit temperature sensors. The output voltage is directly proportional to temperature in Fahrenheit degrees. Output voltage increases by 10 mV for every one degree Fahrenheit. For example, an output voltage of 720 mV (0.72 V) indicates a temperature of 72 F. LM34 has a range of -50 to +300° F and can be operated with a voltage supply of 5 to 30 VDC. It draws only 75 µA from its supply...
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