Question

Fall 2019 ECEN 206 Lab 4 Thevenin Equivalent Circuits Due First week of November Introduction: This lab focuses on the Thevenin equivalent circuit and maximum power transfer theorems Complex circuits are often replaced with their Thevenin equivalent to simplify analysis. For example, in the analysis of large industrial power systems the Thevenin equivalent is used in short circuit studies. Maximum power transfer is also an important concept which allows the designer to determine an optimal design when power is a constraint. Objective: Experimental demonstration of the Thevenin Theorem and Maximum Power Transfer Equipment Needed: Breadboard Individual resistors Power supply Digital Multimeter Procedure: 1) This part of the lab illustrates the use of Thevenin's theorem. Adjust the output of the DC power supply to 5 V and verify with the digital multimeter. Set up the circuit shown in Figure 4.1. Make sure to measure resistor values and write it in your Lab book. Measure the open circuit voltage, Voc between nodes A and B. Measure the short circuit current Isc, between nodes A and B (i.c. connect the ammeter between nodes A and B). Using these measurements, determine the Thevenin equivalent circuit ( V R ). To verify Re remove the 5 V DC supply and replace it with a short wire. Measure the resistance between nodes A and B. Set up the newly determined Thevenin equivalent circuit and verify that this circuit has the same open circuit voltage and short circuit current as the previous circuit. Save this circuit for Part 2 6800 330 w 32200 Sk Figure 4.1 Circuit for determining Thevenin Equivalence

Answer 1

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