Lahore University of Management Sciences EE241L- Introductory Circuits Lab Spring 2014-15 Instructor Dr Hassan Abbas Khan Room No. Room 9‐347A, Department of Electrical Engineering, 3rd Floor, SSE Building, LUMS Office Hours TBD Email Hassan.firstname.lastname@example.org Telephone 35608356, ext 8356 TA TBD TA Office Hours TBA Course URL (if any) Course Basics Credit Hours 2 Lecture(s) Nbr of Lec(s) Per Week 1 Duration 30 mins Lab (per week) Nbr of Lec(s) Per Week 1 Duration 3hrs 20mins Tutorial (per week) Nbr of Lec(s) Per Week ‐ Duration ‐ Course Distribution Core EE major Elective All SSE Open for Student Category Close for Student Category COURSE DESCRIPTION A lab course to introduce electric circuits, electrical measurements and electronic devices. Topics include generating and measuring electrical signals; building and analyzing simple circuits using transformers, OP-Amps, diodes, MOSFETs, BJTs, filtering and modulation. Lab also includes a term project on constructing a complete electronic system. COURSE PREREQUISITE(S) None COURSE OBJECTIVES Familiarize students with basic laboratory instruments used in circuits and electronics Provide a self-contained introduction to building, testing and understanding basic electrical circuits and electronic devices Labs are designed in such a way that at the end students will be able to know Charging and discharging of capacitors, time constant of RC circuit Working of diodes, how to use diodes as rectifiers, clippers and clampers Input output characteristics of op-amp and comparator XY feature and working of oscilloscope Negative feedback and non-inverting amplifiers, design of sound system Design and frequency response of low and high pass filters Resonance in LC circuits , Frequency response of band pass filters ,Transformers and their use to induce voltage I-V characteristics of MOSFET Amplification using MOSFET Modulation and demodulation of signals CMOS logic gates and inverters Lahore University of Management Sciences Learning Outcomes Conduct basic laboratory experiments involving electrical circuits using laboratory test equipment such as multimeters, power supplies, signal generators, and oscilloscopes. Predict the behavior and make measurements of electronic circuits employing filters, amplifiers, modulators and rectifiers. Relate physical observations and measurements involving electrical circuits to theoretical principles. The student will demonstrate the ability to communicate and share their experiences by working in small team groups. Grading Breakup and Policy Home Work: 10 % Class Participation/ Lab performance: 40 % Project: 25% Final Examination: 25% Examination Detail NO Midterm Exam Final Exam Duration: 90 mins Based on learning from the Labs and pre‐lab assignments. COURSE OVERVIEW Week/ Lecture/ Topics Module Breadboard ,function generator, oscilloscope, dc power supply, color code of resistors LAB 1 LAB2 Resistor‐Capacitor (RC) circuits LAB3 Diodes and their applications LAB4 LAB6 LAB5 LAB7 LAB8 Basic Characteristics of Op Amps and Comparators Proteus simulations Recommended Readings A First Lab in Circuit and electronics by Y. Tsividis. Good lab practices and other useful hints – pages 1‐10 Ground Connections – pages 11‐13 Experiments 1&2 – pages 14‐23 Background section in Experiment 6 of Y. Tsividis pg. 46 ‐ 49. Background section in Experiment 9 of Y. Tsividis pg. 67 ‐ 69 and handout on diode equation Op Amp section in Experiment 4 of Y. Tsividis pg. 35 ‐ 36 Audio amplification system(sound system) Background section in Experiment 5 of Y. Tsividis pg. 41 ‐ 42. Filters and their frequency response Background section in Experiment 7 of Y. Tsividis pg. 53 ‐ 56. Background section in Experiment 8 LC circuits, resonance and transformers Objectives/ Application Familiarization with the basic lab equipment To know the charging and discharging of capacitor in first‐order RC circuits and their time constant To know how diodes can be used in practical circuits as rectifiers, limiters, clippers and clampers Input‐output characteristics of an op‐ amp and how an op‐amp is used to construct a simple comparator To get familiarize with the simulation software (Proteus) and how it can be helpful in analyzing the circuit response How to make a simple sound system and the operation of a microphone How to design low and high pass filters To determine the frequency Lahore University of Management Sciences of Y. Tsividis pg. 62 ‐ 66 MOSFETs Experiment 11 of Y. Tsividis pg. 82 ‐ 89. Principles of amplification A MOSFET‐resistor inverter section in Experiment 12 of Y. Tsividis pg. 90 ‐ 91 Background section in Experiment 10 of Y. Tsividis pg. 74 ‐ 76. LAB9 LAB10 LAB11 LAB12 Amplitude modulation(AM) CMOS response of LC circuits and bandpass filtering, use of transformer and basic principle of AM radio I‐V characteristics of MOSFET and their use as voltage controlled resistor and switch To determine the Input output characteristics of amplifier using NMOS and voltage gain Modulation and demodulation of signals and design of radio receivers To determine the voltage transfer characteristic curve of CMOS inverter Textbook(s)/Supplementary Readings • “A First Lab in Circuit and electronics” by Y. Tsividis, John Wiley & Sons, 2002. Reference texts: • ”Microelectronic Circuits Laboratory Explorations Manual” by Sedra Smith 4th Edition, Oxford University Press, 1998. • “Basic Engineering Circuit Analysis” by David Irwin and Mark Nelms, 10th edition, John Wiley & Sons.
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