Electronic Circuits I ELT-345-CRF01 Fall 2011 Instructor: Jim Trepka Other Instructor Information: Contact Information 140 Jones Hall (319)398-7146 e-mail jim.trepka@kirkwood.edu Section Number: 0166889 Monday-Thursday 10:00-10:50 Friday 10:00-11:50 Credit hours: 5 Course description: Presents the study of the fundamental DC concepts (i.e. current, voltage, polarity, energy, power), describes the methods of analysis of DC electric circuits, studies resistive-inductive and resistive capacitive circuits, and introduces the fundamental concepts of AC electricity. Learning activities will include computer simulations and extensive laboratory sessions to allow the student to investigate these concepts. Prerequisites: concurrent with MAT-745 and ELT-345 Course Materials Needed: 1. Circuit Analysis with Devices: Theory and Practice, Robbins & Miller, 4th Edition, (Delmar Learning). ISBN 13: 9781418038618 ISBN 10: 141803861X 2. Lab manual to accompany text, Robbins & Miller, (Delmar Learning). ISBN 13: 9781418038649 ISBN 10: 1418038644 3. PRS RF clicker Books and course materials for this course are available at the Kirkwood Bookstore. Learning Outcomes, Objectives, and Course Competencies: Course Competencies: 1. 2. 3. Analyze DC circuits using appropriate equations and techniques Build DC circuits with resistors, capacitors, and inductors Measure DC circuits with a multimeter and an oscilloscope Objectives (The wording for the following objectives comes from Circuit Analysis with Devices: Theory and Practice, Robbins & Miller, 1st Edition, Delmar Learning). Chapter 1 1. Use power of ten notation to simplify handling of large and small numbers. 2. Express electrical units using standard prefix notation such as A, kV, mW, etc. Chapter 2 1. Define voltage 2. Explain current as a movement of charge and how voltage causes current in a conductor 3. Describe how to measure voltage and current Chapter 3 1. Use resistor color codes to determine the resistance and tolerance of a given fixed-composition resistor 2. Demonstrate the procedure for using an ohmmeter to determine circuit continuity and to measure the resistance of both an isolated component and one that is located in a circuit. 3. Describe how to measure voltage and current Chapter 4 1. Compute voltage, current and resistance in simple circuits using Ohm’s law. 2. Use the voltage reference convention to determine polarity. 3. Describe how voltage, current, and power are related in a resistive circuit. 4. Compute power in dc circuits. 5. Use the power reference convention to describe the direction of power transfer. 6. Compute energy used by electrical loads. 7. Determine energy costs. 8. Determine the efficiency of machines and systems. 9. Use MultiSIM to solve Ohm’s law problems. Chapter 5 1. Determine the total resistance in a series circuit and calculate circuit current. 2. Use Ohm’s law and the voltage divider rule to solve for the voltage across all resistors in the circuit. 3. Express Kirchhoff’s voltage law and use it to analyze a given circuit. 4. Solve for the power dissipated by any resistor in a series circuit and show that the total power dissipated is exactly equal to the power delivered by the voltage source. 5. Solve for the voltage between any two points in a series or parallel circuit. 6. Calculate the loading effect of an ammeter in a circuit. 7. Use computers to assist in the analysis of simple series circuits. Chapter 6 1. Recognize which elements and branches in a given circuit are connected in parallel and which are connected in series. 2. Calculate the total resistance and conductance of a network of parallel resistances. 3. Determine the current in any resistor in a parallel circuit. 4. Solve for the voltage across any parallel combinations of resistors. 5. Apply Kirchhoff’s current law to solve for unknown currents in a circuit. Chapter 7 1. Find the total resistance of a network consisting of resistors connected in various series-parallel configurations. 2. Solve for the current through any branch or component of a seriesparallel circuit. 3. Determine the difference in potential between any two points in a series-parallel circuit. 4. Calculate the voltage drop across a resistor connected to a potentiometer. 5. Analyze how the size of a load resistor connected to a potentiometer affects the output voltage. 6. Calculate the loading effects of a voltmeter or ammeter when used to measure the voltage or current in any circuit. 7. Use MultiSIM to solve for voltages and currents in series-parallel circuits. Chapter 8 1. Convert a voltage source into an equivalent current source. 2. Convert a current source into an equivalent voltage source. 3. Analyze circuits having two or more current sources in parallel. 4. Write and solve branch equations for a network. 5. Write and solve mesh equations for a network. 6. Write and solve nodal equations for a network. 7. Convert a resistive delta to an equivalent wye circuit to a wye to its equivalent delta circuit and solve the resulting simplified circuit. 8. Determine the voltage across or current through any portion of a bridge network. 9. Use MultiSIM to analyze multiloop circuits. Chapter 9 1. Apply the superposition theorem to determine the current through or voltage across any resistance in a given network. 2. State Norton’s theorem and determine the Norton equivalent circuit of any resistive network. 3. Determine the required load resistance of any circuit to ensure that the load receives maximum power from the circuit. 4. State the reciprocity theorem and demonstrate that it applies for a given single-source circuit. 5. State the substitution theorem and apply the theorem in simplifying the operation of a given circuit. Chapter 10 1. Describe the various types of commercial capacitors 2. Compute the capacitance of capacitors in series and in parallel combinations 3. Compute capacitor voltage and current for simple time-varying waveforms Chapter 11 1. Explain why transients occur in RC circuits 2. Explain why an uncharged capacitor looks like a short circuit when first energized. 3. Describe why a capacitor looks like an open circuit to steady state DC. 4. Describe charging and discharging of simple RC circuits with DC excitation 5. Determine voltages and currents in simple RC circuits during charging and discharging 6. Plot voltage and current transients 7. Understand the part the time constants play in determining the duration of transients. 8. Compute time constants 9. Describe the use of charging and discharging waveforms in simple timing applications 10. Calculate the pulse response of simple RC circuits 11. Solve simple RC transient problems with MultiSIM. Chapter 13 1. Compute inductance for series and parallel configurations 2. Compute inductor voltages and currents for steady state dc excitation 3. Describe common inductor problems and how to test for them. Chapter 14 1. Explain why transients occur in RL circuits 2. Explain why an inductor with zero initial conditions looks like an open circuit when first energized. 3. Compute time constants for RL circuits 4. Compute voltage and current transients in RL circuits during the current buildup phase. 5. Compute voltage and current transients in RL circuits during the current decay phase. 6. Explain why and inductor with nonzero initial conditions looks like a current source when disturbed. 7. Solve moderately complex RL transient problems using circuit simplification techniques. 8. Solve simple RL transient problems with MultiSIM. Assessment of Student Learning: See website for class http://faculty.kirkwood.edu/site/index.php?p=17078 Late Work/Make-up Test Policy: Homework Late Policy: 50% is deducted from your score after initial due date. No work is accepted one week beyond the original due date! Any item not made up in this time frame will not be accepted, and a zero will be recorded for that item. NO MAKE UP LABS. Labs not completed on the day of the lab will be recorded as a zero. Exam make up policy: If you miss an exam, under very special circumstances you may make it up with the permission of the instructor. All makeup exams must be done prior to the next class or you will take the makeup exam during finals week and the exam will be different from the rest of the class. Exams missed due to unexcused absences will be recorded as an "F" with a score of 0%. Class Attendance Policy and College Sponsored Activities: As stated in the Student handbook: In compliance with Public Law 105244, Kirkwood Community College makes a wide variety of general institutional information available to students. For additional information, go to http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf Productive Classroom Learning Environment: See student handbook http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf Plagiarism Policy: See student handbook http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf Campus Closings: See student handbook http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf Learning Environment Expectations: The classroom and laboratory conditions will be conducive to teaching and student learning. To promote and maintain that environment, all pagers, cellular phones, and other autonomous means of communication shall be deactivated during instructional periods. RINGING OF CELL PHONES DURING CLASS WILL RESULT IN POINTS DEDUCTED FROM YOUR CLASS ROOM PARTICPATION AND PROFESSIONAL CONDUCT GRADE. Participants are expected to come to class prepared to actively participate in class. Americans with Disabilities Act: Students with disabilities who need accommodations to achieve course objectives should file an accommodation application with Learning Services, Cedar Hall 2063 and provide a written plan of accommodation to your instructor prior to the accommodation being provided. Student Evaluation: Unit Exams - Exams will be given after every 2 or 3 chapters totaling 30% of your final grade. Missed exams must be made up on or before the next class period. In a rare situation where the exam can not be made up in that time period, the student will be given an exam that is different than that taken by the rest of the class. Final Exam - The final exam will be worth 20% of your final grade. Homework - Homework will be assigned on a weekly basis (usually). Homework will be worth 20% of your final grade. Labs - Labs will be worth 25% of your final grade. Quizzes, Class Room Participation, and Professional Conduct - 5% of your final grade . Points will be added to classroom participation and professional conduct grade based on the following: 1. Arrival at class by start of class. 2. Performing in class problems. 3. Answering questions. 4. Helping lab partner or other lab groups. 5. Helping other classmates. Points will be deducted from the classroom participation and professional conduct grade for the following: 1. Inappropriate language or jokes. 2. Ringing of cell phones in class. 3. Disrupting the class. 4. Leaving class early. 5. Not cleaning up workspace at the end of the class. How final grades are determined: see above Grading Scale: Drop Date: B+ 87 C+ 77 D+ 67 A 94 B 83 C 73 D 63 A- 90 B- 80 C- 70 D- 60 F Below 60 Students dropping a class during the first two weeks of a term may receive a full or partial tuition refund for 16 week terms, for shorter courses check with Enrollment Services for total withdraw information. Details of the refund schedule are available from Enrollment Services in 216 Kirkwood Hall. For detailed discussion of drop dates and policies, please read the student handbook. The last date to drop this class for this term is November 11. Final Exam Information: Final exams are scheduled during the last week of the term from December 12 to December 16. The final exam for this class is scheduled on Monday December 12 at 10:00. Emergency Information: See student handbook http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf Other Information: See website for class http://faculty.kirkwood.edu/site/index.php?p=17078