UMM AL-QURA UNIVERSITY

Transcription

1 UMM AL-QURA UNIVERSITY College of Computer and Information Systems Computer Engineering Department Digital Electronic Systems and Circuits Lab Manual Student Name: Student ID: Section: Group: Session (Fall/ Spring / Summer)

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3 Digital Electronic Systems and Circuits TABLE OF CONTENTS Table of Contents... i Laboratory Safety Guidelines... ii Experiment No. 1. Introduction to NI ELVIS-II Board Experiment No.2. Logic Gates Implementation using Diodes... 5 Experiment No. 3. Logic Gate Implementation using Transistor... 7 Experiment No. 4. NAND Gate Implementation using Transistor... 9 Experiment No. 5. Graphical Analysis of Components Experiment No. 6. Modified DTL NAND Gate Experiment No. 7. NAND Gate Implementation using TTL Logic Experiment No. 8. NOR Gate Implementation using TTL Logic Experiment No. 9. NMOS Inverter with Saturated Enhancement Load Experiment No. 10. Logic Gate Implementation using NAND Gate IC Prepared By: Engr. Muhammad Yousuf Irfan Zia 2012 Revised By: Reviewed By: Approved By: Computer Engineering Department i Umm Al-Qura University

4 Umm Al-Qura University Computer Engineering Department LABORATORY SAFETY GUIDELINES A. General Laboratory Safety Rules 1. Personal Safety Be familiar with the electrical and fire hazards associated with your workplace. Be as careful for the safety of others as for yourself. Think before you act. Be tidy and systematic. Avoid bulky, loose or trailing clothes. Avoid long loose hair. No one is allowed to enter in the lab area bare foot due to increased risk of electric shock. Remove metal bracelets, rings or watchstraps when working in the laboratories. Avoid working with wet hands and clothing. 2. Food, Beverages and Smoking Due to the increased risk of electric shock, no drinking of beverages, consumption or storage of any kind of food is allowed in the laboratory. Smoking is prohibited in all laboratories in all timings. 3. Soldering No one is allowed to do soldering in any of the computer engineering laboratories except the graduation project design laboratory. Anyone doing soldering in the graduation project design laboratory must wear appropriate apparel, socks, gloves, covered shoes and safety goggles to prevent the possibility of severe burns resulting from the splashing or dripping of hot liquefied solder into the face and eyes or on to the exposed skin on the chest, hands, legs, and feet. Students who are not so properly attired for these tasks will NOT be allowed to perform any type of soldering in the graduation project design laboratory. 4. Laboratory Operating Hours Students are never allowed to work alone in any lab area other than scheduled laboratory operating hours unless either a Lab T/A or Course Instructor is present inside that lab area. The laboratory operating hours for students are posted on the entrance doorway and on the notice board of computer engineering department. 5. Power Supply Related Safety Voltages above 50-VAC or 120-VDC are always dangerous. Extra precautions should be considered as voltage levels are increased. Never make any changes to circuits or mechanical layout without first isolating the circuit by switching off and removing connections to power supplies. 6. Laboratory Equipment Lab equipment may not be removed from the Computer Engineering lab areas without the permission of the Laboratory Supervisors. Laboratory bench equipment (except for some lab bench computers) must be turned off before closing down the lab area for the day. Never open (remove cover) of any equipment in the laboratories. Never "jump," disable, bypass or otherwise disengage any safety device or feature of any equipment in the laboratories. Laboratories shall be locked when unoccupied. 7. Waste Management Safety Know the correct handling, storage and disposal procedures for batteries, cell, capacitors, inductors and other high energy-storage devices. Computer Engineering Department ii Umm Al-Qura University

5 8. Equipment Safety Before equipment is energized ensure, circuit connections and layout have been checked by a Teaching Assistant (TA) and all colleagues in your group has given their consent. Experiments left unattended should be isolated from the power supplies. If for a special reason, it must be left on, a barrier and a warning notice are required. Equipment found to be faulty in any way should be reported to the lab supervisor and taken out of service until inspected and declared safe. 9. Equipment Accessories Use extension cords only when necessary and only on a temporary basis. Request new outlets if your work requires equipment in an area without an outlet. Discard damaged cords, cords that become hot, or cords with exposed wiring. B. Electrical and Fire Emergency Responses 1. Police, Fire or Medical Emergency Use the telephone located in the laboratory area and press to notify police, fire, and ambulance for emergency help. Everyone present in the laboratory area shall be familiar with the locations and operation of safety and emergency equipment, including but not limited to, fire extinguishers, first aid kits, emergency power off system, fire alarm pull stations, and emergency telephones. 2. Electric Shock When someone suffers serious electrical shock, he may be knocked unconscious. If the victim is still in contact with electrical current, immediately turn off the electrical power source. If you cannot disconnect the power source, depress the Emergency Power Off switch. Do not touch a victim that is still in contact with a live power source; you could be electrocuted! Have someone call for emergency medical assistance immediately. Administer first-aid, as appropriate. 3. Electrical Fire If an electrical fire occurs, try to disconnect the electrical power source, if possible. If the fire is small and you are not in immediate danger; and if you have been properly trained in fighting fires, use the correct type of fire extinguisher to extinguish the fire. When in doubt, push in the Emergency Power Off button. NEVER use water to extinguish an electrical fire. 4. Emergency Power Off Every lab is equipped with an Emergency Power off System. When this switch is depressed, electrical power to the lab will shut off, except for lights. Only authorized personnel are permitted to reset power once the Emergency Power Off system has been engaged. 5. Building Evacuation in Emergency Everyone present in the laboratory should be familiar to emergency exits & way out plans. Use the nearest exit doorway from lab area closest to the stairwell to exit the building. Follow the Emergency Exit Signs posted in the hallways. Do not use elevators. Lab Teaching Assistants (T/As) or Instructor shall make sure all persons are out of the laboratory area and follow the directions posted at each doorway to the laboratory area. The above general laboratory safety rules are designed to safeguard you and your co-workers, fellow students and colleagues and are a minimum requirement for individuals working in the computer engineering laboratories at Umm Al-Qura University, Makkah Al-Mukarramah. Specialized training and rules may apply depending on type and scope of activities involved. Computer Engineering Department iii Umm Al-Qura University

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7 Digital Electronic Systems and Circuits Experiment No. 1 Objective: Introduction to NI ELVIS-II Board The objective of this experiment is to introduce NI ELVIS II board. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. Figure 1.1: NI ELVIS II Workstation parts locator diagram. NI ELVIS II Parts 1. NI ELVIS II Series Prototyping Board. 2. Digital Multi Meter (DMM) Connectors. 3. Oscilloscope Connectors. 4. Prototyping Board Power Switch. 5. Status LEDs. 6. Variable Power Supply Manual Controls. The workstation has following important indicators, controls, and connectors: Computer Engineering Department 1 Umm Al-Qura University

8 Digital Electronic Systems and Circuits Experiment No. 1 USB LEDs Ready: Indicates that the NI ELVIS II Series hardware is properly configure and ready to communicate with the host computer. Active: Indicates activity on the USB connection to the host computer. Prototyping Board Power Switch and LED Controls the power to the prototyping board. Fixed Power Supplies Variable Power Supplies Controls Positive Voltage Adjust Knob: Controls the output voltage of the positive variable power supply from 0v to +12V Negative Voltage Adjust Knob: Controls the output voltage of the negative variable power supply from 0v to -12V DMM Connectors 6DC, 2rms max Voltage Resistance Diode Banana Jack (red): The positive input for voltage based DMM functionality. Common Banana Jack (black): The common reference connection for DMM voltage, current, resistance, and diode measurement. Current Banana Jack (red): The positive input for DMM current measurement. Oscilloscope Connectors 1DC, 7V rms max CH-0 BNC Connector: The input for channel 0 of the oscilloscope. CH-1 BNC Connector: The input for channel 1 of the oscilloscope. Computer Engineering Department 2 Umm Al-Qura University

9 Digital Electronic Systems and Circuits Experiment No. 1 Procedure: 1. Connect the NI ELVIS II workstation to your computer using the supplied USB cable. 2. Turn on the computer and power up NI ELVIS II workstation. 3. Click on the NI ELVIS II Instrument Launcher Icon or shortcut. A strip of NI ELVIS instruments appears on the screen. Figure 1.2: NI ELVIS II Instrument Launcher Icon Strip 4. Connect two banana-type leads to the digital multi-meter (DMM) inputs and [COM] on the left side of the workstation. 5. Connect other ends to one of the resistors. 6. Click on the DMM icon within the NI ELVIS II Instrument Launcher to select the digital multi-meter. Figure 1.3: Digital Multi-meter, (DMM) 7. The DMM can be used in variety of operations such as voltage, current, resistance, and capacitance measurement. 8. Click Ohm button to select the DMM to measure resistance then click RUN to measure the value of resistor. Computer Engineering Department 3 Umm Al-Qura University

10 Digital Electronic Systems and Circuits Experiment No Click on the VPS icon within the NI ELVIS II Instrument Launcher to select the variable power supply. Figure 1.4: Variable Power Supply (VPS) ; Student Name: Student ID: a. The measured value of + fixed power supply is V. b. The measured value of +1 fixed power supply is V. c. The measured value of -1 fixed power supply is V. d. The measured range positive variable supply is from V to V. e. The measured range negative variable supply is from V to V. f. The measured value of R1 using DMM is Ω. g. The observed value of R1 using color codes is Ω. h. The measured value of R2 using DMM is Ω. i. The observed value of R2 using color codes is Ω. Computer Engineering Department 4 Umm Al-Qura University

11 Digital Electronic Systems and Circuits Experiment No. 2 Logic Gates Implementation using Diodes Objective: The objective of this experiment is to implement AND & OR gates using Diode Logic. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Diodes and Resistor. Background: In this experiment positive-logic AND, OR gates will be constructed using diode logic (DL). Logic 0 state is represented as LOW, while logic 1 state is represented as HIGH. Procedure: Part I 1. Connect the circuit as shown in the figure Apply voltage on terminals A and B as shown in the table Measure and record the voltage in table 2.1 using DMM on terminal Y. Figure 2.1: OR Gate using diode logic Table 2.1: OR Gate implementation using diode logic Inputs Output A B Y=A + B Computer Engineering Department 5 Umm Al-Qura University

12 Digital Electronic Systems and Circuits Experiment No. 2 Part II 1. Connect the circuit as shown in the figure Apply voltage on terminals A and B as shown in the table Measure and record the voltage in table 2.2 using DMM on terminal Y. Figure 2.2: AND Gate using diode logic Table 2.2: AND Gate implementation using diode logic Inputs Output A B Y=A. B ; Student Name: Student ID: a. The figure 2.1 is the implementation of gate. b. The figure 2.2 is the implementation of gate. c. If all inputs in figure 2.1 are LOW the output will be volts. d. If all inputs in figure 2.2. are HIGH the output voltage will be volts. e. In figure the diodes are connected in reverse biased. f. The measured value of resistor in figure 2.1 ohms. Computer Engineering Department 6 Umm Al-Qura University

13 Digital Electronic Systems and Circuits Experiment No. 3 Logic Gate Implementation using Transistor Objective: The objective of this experiment is to implement Inverter gate using transistor logic. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Transistor and Resistors. Background: In this experiment inverter gate is constructed using transistor logic. Logic 0 state is represented as LOW, while logic 1 state is represented as HIGH. The input is given to the base of transistor while the output is taken from the collector. Procedure: Part I 1. Connect the circuit as shown in the figure First apply +5 volt on terminal V i and measure output on terminal V o. 3. Secondly apply 0 volt on terminal V i and measure output on terminal V o. 4. Record the observations in the table 3.1. Figure 3.1: Inverter using transistor logic Table 3.1: Inverter implementation using transistor logic Input Vi Output Vo = Vi Computer Engineering Department 7 Umm Al-Qura University

14 Digital Electronic Systems and Circuits Experiment No. 3 Part II 1. Click on the NI ELVIS II Instrument Launcher Icon or shortcut. A strip of NI ELVIS instruments appears on the screen. 2. Launch Digital Writer NI Elvis as shown in the figure Connect the outputs of the digital writer to the inputs of the circuit and take readings. Figure 3.2: Digital writer NI Elvis II ; Student Name: Student ID: a. The transistor used in the experiment is NPN or PNP. b. The figure 3.1 is the implementation of gate. c. The measured value of R B is ohms. d. The measured value of Rc is ohms. Computer Engineering Department 8 Umm Al-Qura University

15 Digital Electronic Systems and Circuits Experiment No. 4 NAND Gate Implementation using Transistor Objective: The objective of this experiment is to implement NAND gate using transistor logic. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Transistor, Diodes and Resistors. Background: In this experiment NAND gate is constructed using transistor logic. Logic 0 state is represented as LOW, while logic 1 state is represented as HIGH. The inputs are given to the diodes which are connected in reverse biased and the output is taken from the collector of NPN transistor. Procedure: Part I 1. Connect the circuit as shown in the figure Start making circuit from left side and make sure that first two diodes are connected in reverse biased. 3. Connect next two diodes in series as forward biased. 4. Apply voltages as shown in the table 4.1. and record the output. Figure 4.1: NAND gate implementation using transistor logic Computer Engineering Department 9 Umm Al-Qura University

16 Digital Electronic Systems and Circuits Experiment No. 4 Table 4.1: NAND Gate implementation using transistor logic Inputs Output A B Vo ; Student Name: Student ID: a. The transistor used in the experiment is NPN or PNP. b. The figure 4.1 is the implementation of gate. c. The measured value of Rc is ohms d. Construct the timing diagram of the gate. Computer Engineering Department 10 Umm Al-Qura University

17 Digital Electronic Systems and Circuits Experiment No. 5 Objective: Graphical Analysis of Components The objective of this experiment is to identify the components from graph. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Transistor, Diodes and Resistors. Background: In this experiment graphical analysis of resistor, diode and transistor will be performed. Procedure: Part I: Resistor 1. Connect the resistor in terminals DUT+ and DUT- in NI Elvis II board as shown in the figure Launch two terminals Instrument from NI launcher and observe the resistor curve. 3. Observe the graph of resistor in the instrument. 4. Calculate the value of the resistor from the slope using following formula. E R I Figure 5.1: NI Elvis two terminal instrument slots. Computer Engineering Department 11 Umm Al-Qura University

18 Digital Electronic Systems and Circuits Experiment No. 5 Figure 5.2: Resistor curve using two wire instrument. Part II: Diode 1. Connect the diode in terminals DUT+ and DUT- in NI Elvis II board as shown in the figure Launch two terminals Instrument from NI launcher and observe the diode curve. Figure 5.3: Diode curve using two wire instrument. Computer Engineering Department 12 Umm Al-Qura University

19 Digital Electronic Systems and Circuits Experiment No. 5 Part III: Transistor 1. Connect the resistor in terminals DUT+ and DUT- in NI Elvis II board. 2. Launch three terminals Instrument from NI launcher and observe the transistor curve. Figure 5.4: Transistor curves using three wire instrument. ; Student Name: Student ID: a. From the curve the value of resistor is Ohms. b. In the curve the knee voltage of diode is volts. c. Draw the graph of diode and transistor on next page. Computer Engineering Department 13 Umm Al-Qura University

20 Digital Electronic Systems and Circuits Experiment No. 5 ; Student Name: Student ID: Computer Engineering Department 14 Umm Al-Qura University

21 Digital Electronic Systems and Circuits Experiment No. 6 Modified DTL NAND Gate Objective: The objective of this experiment is to implement modified NAND gate using transistors. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Transistor, Diodes and Resistors. Background: In previous experiment, a simple DTL NAND gate was studied. That circuit is modified by replacing diode D 1 with a transistor T 1 so that there is an increase in the base current of the output transistor without a corresponding increase in current imposed by each additional gate. Thus, the fan-out of the gate is considerably increased. This circuit is shown in following figure. Procedure: 1. Connect the circuit as shown in the figure Start making circuit from left side and make sure that first two diodes are connected in reverse biased. 3. Connect next diode with the emitter of T1 and base of T2. 4. Apply voltages as shown in the table 6.1 and record the output. Figure 6.1: Modified NAND gate implementation using transistor logic Computer Engineering Department 15 Umm Al-Qura University

22 Digital Electronic Systems and Circuits Experiment No. 6 ; Student Name: Student ID: Table 6.1: Modified NAND Gate implementation using transistor logic Inputs Output A B V o a. The transistor T1 in the experiment is NPN or PNP. b. The figure 6.1 D1 is connected in forward biased or reverse biased. c. The figure 6.1 D3 is connected in forward biased or reverse biased. d. The behavior of given circuit is like gate. e. Construct the timing diagram of the gate. Computer Engineering Department 16 Umm Al-Qura University

23 Digital Electronic Systems and Circuits Experiment No. 7 NAND Gate Implementation using TTL Logic Objective: The objective of this experiment is to implement NAND gate using TTL logic. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Transistors, Diodes and Resistors. Background: The DTL NAND gate (which was studied in the last experiment) has limitation as speed of operation, which is overcome in TTL NAND gate. The input transistor for TTL NAND gate is multi-emitter transistor, which is made by using two transistors T1 and T2 in the experiment. Procedure: 1. Connect the circuit as shown in the figure Apply voltages and record the readings in table 7.1 Figure 7.1: NAND gate implementation using TTL logic Computer Engineering Department 17 Umm Al-Qura University

24 Digital Electronic Systems and Circuits Experiment No. 7 ; Student Name: Student ID: Table 7.1: NAND Gate implementation using TTL logic Inputs Output A B V o a. The behavior of given circuit is like gate. b. Construct the timing diagram of the gate. Computer Engineering Department 18 Umm Al-Qura University

25 Digital Electronic Systems and Circuits Experiment No. 8 NOR Gate Implementation using TTL Logic Objective: The objective of this experiment is to implement NOR gate using TTL logic. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. Transistor, Diodes and Resistors. Background: In last experiment TTL NAND gate was implemented. In this experiment TTL NOR gate is implemented using similar logic. Procedure: 1. Connect the circuit as shown in the figure Apply voltages and record the readings in table 8.1 Figure 8.1: NOR gate implementation using TTL logic Computer Engineering Department 19 Umm Al-Qura University

26 Digital Electronic Systems and Circuits Experiment No. 8 ; Student Name: Student ID: Table 8.1: NOR Gate implementation using TTL logic Inputs Output A B V o a. The behavior of given circuit is like gate. b. Construct the timing diagram of the gate. Computer Engineering Department 20 Umm Al-Qura University

27 Digital Electronic Systems and Circuits Experiment No. 9 NMOS Inverter with Saturated Enhancement Load Objective: The objective of this lab is to implement NMOS inverter with saturated enhancement load. Equipment: 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer. 4. N MOSFET Transistors. Background: In this experiment NMOS transistor is used to implement inverter. Procedure: 1. Connect the circuit as shown in the figure Apply voltages and record the readings in table 9.1 Figure 9.1: Inverter using N MOSFET transistors. Computer Engineering Department 21 Umm Al-Qura University

28 Digital Electronic Systems and Circuits Experiment No. 9 ; Student Name: Student ID: Table 9.1: NOT Gate implementation using TTL logic Input 0.2V 0.4V 0.6V 0.8V Output a. The behavior of given circuit is like gate. b. Draw the graph of inputs versus output. Computer Engineering Department 22 Umm Al-Qura University

29 Digital Electronic Systems and Circuits Experiment No. 10 Logic Gate Implementation using NAND Gate IC Objective: Equipment: The objective of this experiment is to implement logic gates using NAND gate IC. 1. NI ELVIS II Series Prototyping Board. 2. AC/DC Power Supply and USB Cable. 3. Personal Computer NAND Gate IC. Background: In this experiment NMOS transistor is used to implement inverter. Procedure: Part I 1. To implement AND gate using IC 7400 provide binary input A on pin 1 and input B on pin 2 of the IC as shown in the figure Check output C on pin 3. It should give NAND result. 3. Connect pin 3 with pin 4 and pin 5 and receive output D on pin 6. Figure 10.1: TTL NAND Gate IC Table 10.1: AND Gate implementation using NAND Gate IC. Inputs Outputs A(Pin 1) B (Pin 2) C (Pin3) D (Pin6) Computer Engineering Department 23 Umm Al-Qura University

30 Digital Electronic Systems and Circuits Experiment No. 10 ; Student Name: Student ID: Part II 1. Implement NOR gate using IC 7400 in table Draw the diagram of the NOR gate using NAND gate IC below the table. Table 10.2: NOR Gate implementation using NAND Gate IC. Inputs Outputs A B C D E Computer Engineering Department 24 Umm Al-Qura University

31 Digital Electronic Systems and Circuits. Summary Computer Engineering Department 25 Umm Al-Qura University