OBJECTIVE: ● To review some of the basic circuit operations required for use in later Electronic Lab Experiments. PARTS LIST: 1 - 200 1 - 510 1 - 680 EXPERIMENT

2 BASIC CIRCUITS REVIEW PRE - LAB: 1 - 1K 1 - 2K 1 - 3K 1-5.1K 1A. For Part 1A of the Procedure, calculate the voltages at V1 and V2. Show the direction of the current on the schematic. 1B. For Part 1B of the Procedure, calculate the voltages at V3 and V4. Show the direction of the current on the schematic. 2. For Part 2 of the Procedure, calculate the value of Vo. Also calculate the current in all the resistors and apply Kirchhoff's Current Law to verify they are correct. 3. Calculate the value of Vo for the circuit in Fig 2-3 using Nodal or Mesh equations. 4. Calculate the value of VTH and RTH at AA' for the circuit of Fig 2-3. Using these values of VTH and RTH, solve for the value of Vo in the circuit of Fig 2-4. 5. Calculate and sketch Vo for the circuit of Fig 2-5. Hint: Use Superposition 2-1 PROCEDURE: Use the digital multimeter for all measurements 1. Voltage Division Construct the circuits in Fig 2-1 and measure the voltages at V1, V2, V3, and V4 referenced to ground. 15V 15V 510 + 1K (A) 15V + 3K 5.1K 2K 2K 200 15V V1 V2 Fig 2-1 Voltage divider networks. (A) Single voltage supply (B) Two voltage supplies 2. Current Division Construct the circuit of Fig 2-2 and measure the voltage at Vo referenced to ground. From the data, calculate the currents in the 1K, 2K, 3K, and 200 ohm resistors. Vo A A' 1K 2K Fig 2-2 Current divider network w 15V + Fig 2-3 Circuit for evaluating Thevenin's Theorem 3. Thevenin's Theorem Construct the circuit of Fig 2.3 and measure the value of Vo referenced to ground. Construct the circuit of Fig 2-4 using the equivalent VTH and RTH calculated in Part 4 of the Pre-Lab. Measure the value of Vo referenced to ground. Vo Ro=510 510 3K 2-2 (B) VTH 3K 5.1K + 2K R₁ 5V ΤΗ V3 A V4 A' Vo Ro= 510 Fig 2-4 Thevenin equivalent of the circuit of Fig 2-3 4. Superposition Theorem Construct the circuit of Fig 2.5 and measure the value of Vo referenced to ground. On the sketch, show the max, min and base line voltages of the sine wave. •Vo 6 sin 2π 1000 t volts = Vin 1K QUESTIONS: 2K 15V Fig 2-5 Circuit for evaluating Superposition Theorem 1. Compare in chart form the voltages V1, V2, V3, and V4 measured in Part 1 of the Procedure with the calculations of the Pre-Lab. 2. Compare Vo measured in Part 2 of the Procedure with the calculated value of the Pre-Lab. 3. Compare the measured values of Vo for the circuits in Fig 2-3 and Fig 2-4. 4. Compare the sketch of Vo for ne circuit of Fig 2-5 with the Pre-Lab calculation. 2-3/nTWO Tektronix TDS 2002C DIGITAL STORAGE OSCILLOSCOPE Tek T Trig'd mmm M CH1: PR-PK 5.92V Period 19.96ms M Pos: 0.000s www CH1 2.00V CH2 2.00V Cyc RMS 2.19V - Freq:50.10Hz M 10.0ms 22-Jan-24 14:26 AUTOSET SISE FFT Undo Autoset CH1758mV 49.9964Hz USB Flash Drive 70 MHz 1 GS/S Probe Probe Comp SV@TAN FL Save AutoRange Save/Recall Ref 1 Utility Vertical Sosition Math Menu cale 300 VA/n ELECTRONICS LAB MANUAL EEE3311 REVISION E January 16, 2012 LAWRENCE TECHNOLOGICAL UNIVERSITY ELECTRICAL AND COMPUTER ENGINEERING DEPT TJ DRAGON ELECTRONIC LABS Exp 1 Introduction To Simulation S/W (Microcap) Exp 2 Basic Circuit Review Exp 3 Measurement of Diode Characteristics Exp 4 Diode clipping networks and logical AND/OR diode gates Exp 5 Zener Diode Regulators and full wave rectifiers Exp 6 Bipolar Transistor Biasing Exp 7 Single stage Bipolar Transistor AC Amplifier Exp 8 JFET Parameters - Biasing - AC Amplification Exp 9 Op-amp characteristics and basic Inverting and Non-Inverting Configurations Exp 10 Application of Cascaded Op-amps with several inputs i DATA SHEET REQUIREMENTS: ● 1. 2. 3. Vin VIN Schematic and data on the same sheet All component values identified on the schematic Schematic signal labeling consistent with data labeling VA VIN + Vb 5.1K www 2K 10K Ic 1K EXAMPLE OF A GOOD DATA SHEET -15V o VIN =Vm sin 2л1000t volts 6.2V - 5V -O +15V 2K -> Vc 3K 200 3K VIN=10 sin 2+1000t volts -> Ve 6.2V 5K +5V -> Vo 3K Vo C= 22uF 510 Vo ii DC data: Vc = 6.2 V Ve = -1.0 V .. VCE = 7.2 V and Ic = AC data: VIN p/p 200 mV 300 mV 400 mV VIN V₂ A 10V 8V 20V 16V Vin Vo 10V - 1.2V- p/p = peak to peak VB p/p 105 mV 147 mV 202 mV - 1.2V Distortion occurs at V when VIN = 475 mV p/p --- OV V₂ 5V 10V OV 15-6.2 2K V p/p 1.56V 2.18V 3.10V ← 42 us 4.4 mA 1.2V - 10V VERY IMPORTANT A major and important task, that occurs during an Engineer's career, is the taking of data and presenting it to others in a clear and concise manner. It is our intent to teach the attributes of a good data sheet and, in turn, expect these attributes to be reflected in the data sheets of the Lab Reports. Data sheets containing AC signals are more involved than those with only DC, because they must specify the amplitude of the signals, as well as any DC component that may be present. In addition, an AC waveform has a horizontal axis of time which may require a measurement. Experiments 4, 5, 7, 8, 9, 10, and 11 have AC inputs applied and, consequently, will require the sketching of waveforms. The waveforms must show the appropriate amplitudes and time parameters as required. As stated In "EXAMPLE OF A GOOD DATA SHEET,” (page ii) the schematic and the data must be on the same page. This is a hard and fast rule. A data sheet that references a schematic(s) 3 or 4 pages removed from the data sheet certainly does not qualify as being a concise data sheet and is, therefore, unacceptable. Printing out the AC waveforms and submitting them as data sheets is not acceptable. First, the printed waveforms do not have the amplitude or time parameters present, Secondly, there is no schematic on the printed waveform ...... a basic flaw. It is required that hand sketches of the AC waveforms be made for submission with the Lab Report. With a little care, this can be accomplished in a neat manner. It is the policy of the ECE Department that every circuit in this lab must be simulated as part of the Prelab --- using SPICE (e.g., Microcap, Pspice, Vadence, or Electronics Workbench) OBJECTIVE: EXPERIMENT 1 INTRODUCTION TO MICROCAP S/W To learn to use the Microcap Simulation S/W for analog circuit simulation PRE-LAB: 1. Load the Microcap Simulation S/W (it's free) on your Laptop from the site listed on page 1-1 of the Microcap Summary . 2. With the program opened, go through pages 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, 1-7, 1-8, and 1-9 of the Microcap Summary excluding the step feature topic. 3. With the program opened, create the sine wave and the pulse following the procedure outlined on page 1-14 of the Microcap Summary. 4. With the program opened, go through pages 1-16, 1-17, 1-18, 1-19 and 1-20 of the Microcap Summary. 5. With the program opened, draw the schematic of Fig 1-1. Using the pulse created in step 3 above as Vin, display the Vin and Vo waveforms. Using a time range of 10u, print these waveforms using the procedure outlined on page 1-31 of the Microcap Summary. 6. Submit calculations and a sketch of Vo in time relation with Vin. -> Vo Vin 5K 3K 15v Fig 1-1 Schematic of circuit to be simulated Hint: Use Superposition Theorem to solve for Vo It will not be necessary to build this circuit in the lab.