Physics 160 Practical Electronics Spring 2014 1 Syllabus Lecture T,Th 10:00–11:45 am,1 ISB 165. Lab Section: - T,Th 1:00 pm–5:00 pm, Nat Sci II, Room 110. o TA: Milton Bose o Email: [email protected] o Phone: 459-4138 Office: ISB 314 Instructor: Robert Johnson Office: 323 Natural Sciences II; Office phone 459-2125 E-mail: [email protected] Office hours: Fridays, 1:00–4:00 pm, in the lab (Nat Sci II, Room 110). You may use this time to finish your lab work, and you may also look for me in my office in Room 323 at other times. The course web site is http://scipp.ucsc.edu/~johnson/phys160/phys160.htm, or you can go directly to eCommons. Textbooks (both required): The Art of Electronics, 2nd edition, by Horowitz and Hill. Student Manual for the Art of Electronics, by Hayes and Horowitz Week Dates Lecture Topics Reading TextbookReading St. Man. Lab HW Due1 April 1 April 3 DC circuits Linear AC circuits 1.01–1.06 1.07–1.17 N1, X1 1. DC Circuits 2 April 8 April 10 Circuit analysis and simulation Diodes and diode circuits 1.18–1.24 1.25–1.34 N2, X2 2. Capacitors #1 3 April 15 April 17 Diodes and transistors Basic transistor circuits 2.10–2.09 N3, X3 3. Diodes 4 April 22 April 24 Amplifier building blocks Transistor models 2.10–2.14 2.15–2.20 N4, X4 4. Transistors I #2 5 April 29 May 1 More transistor circuits Amplifier noise 2.21–2.25 7.11–7.14 N5, X5 5. Transistors II 6 May 6 May 8 Introduction to FETs FET circuits 3.01–3.06 3.07–3.17 N6, X6 6. Transistors III #3 7 May 13 May 15 Feedback and op-amps. Op amp limitations. More real op-amp circuits. 4.01–4.10 4.11–4.24 N7, X7 7. FET I 8 May 20 May 22 No Lecture No Lecture N8, X8 8. Op Amps I 9 May 27 May 29 Finite-gain effects Oscillators 4.25–4.37 5.12,5.13, 5.18,5.19 N9, X9 9. Op Amps II #4 10 June 3 June 5 Voltage regulators Power circuits 6.01–6.07 6.19, 6.20 N10 N10, N12 10. Oscillators & 12. Power Sup. #5 11 June 9 Final exam 8:00 to 11:00 am Labs: We will not necessarily do every section of every lab that is listed. I will clarify this as we go along. The last week includes two labs, both of which will be abbreviated: 1 This is the official time, but normally the lecture will be over by 11:10 (except for the week of May 13).Physics 160 Practical Electronics Spring 2014 2- Lab 10: Sections 1, 2, 3, and 8, but do not do the part on “oscillations” in Section 3 and the part on an “alternative astable circuit” in Section 3. - Lab 12: Sections 1, 3, 4 and 5, but not including the “Three Terminal Regulator as Current Source.” The lab work is done in pairs. It is important that both partners participate equally in the circuit construction and measurements. If we notice pairs in which one person is dominating the work we may try to shuffle the groups. There will not be any formal instruction in the lab sections, so you can come and go at will during your sections, as long as you coordinate with your partner. In addition, I will open the lab on Friday afternoons from 1:00 to 4:00 pm, in case you need more time to finish up, or in case you have questions for me. Your notebook with the completed lab report will be due during the lab session Tuesday of the following week. For that reason, you will need two lab books to do your work in. Lab Kits: In addition to the textbooks, you will have to purchase a lab kit containing various electronics parts needed in the lab experiments, for a nominal fee (which should show up on your overall UCSC billing after you register). Prof. Brown in Nat. Sci. II, Room 176 handles the purchase of the kits, and I will distribute them to you. Lab Precautions and Suggestions: Please keep in mind the following cautions and recommendations, for your own safety, to avoid damage to equipment, and to make your time more productive: 1. Never plug anything into the A/C power if it is not fully enclosed and insulated. There should never be any exposed metal in your setup that could pose a shock danger. 2. Never open any chassis that uses A/C power while it is plugged in. In fact, do not open any of the equipment chasses without consulting me, George Brown, or the TA. 3. Turn the VOM or DVM meter to the desired setting before connecting it to your circuit. You are guaranteed to blow out the fuse of the ammeter if you connect it across a voltage source. This happens very often and is a big nuisance. 4. Do not make changes to your circuit while it is powered. I know that this is easy to forget, but do try to take care with this to avoid damaging your components or blowing fuses. 5. Turn off all equipment when done, including the DVM and VOM. Put all of the equipment away neatly before leaving. Do not expect your setup to remain intact on the workbench from one day to the next. 6. When making measurements with an oscilloscope, the return side of the input must be connected to ground. For example, with an oscilloscope you cannot measure the voltage across a resistor in your circuit unless one side of the resistor is at ground potential. Do not try to play any tricks with the scope ground in order to get around this limitation. 7. Do not connect any of your diodes directly across a voltage source. If forward biased, it will quickly burn out. A forward biased diode must have a resistor in series with it to limit the current. 8. Be careful when handling semiconductor components, as static electricity can destroy them. Touch a ground before handling them, and avoid unnecessary handling. MOSFETs are especially sensitive. 9. Test your circuit stage by stage as you assemble it. For example, measure DC bias voltages and currents and make sure they are correct before trying to see AC signals. Resist the urge to wire up a big rat nest and then plug it in to see what happens. If it doesn’t self destruct, at the very least it will be terribly difficult to debug. 10. Use the bread boards when wiring your circuit, and try to keep the wiring 2-dimensional and neat, preferably with an arrangement that mimics the schematic. You can simplify your circuit and minimize the number of wires by using the component leads themselves to make most of the connections. Fewer wires and connections usually means greater reliability and easier debugging. 11. Again, check the DC bias voltages and currents before worrying about signals! If the DC bias is not correct, then the amplifier