1. Set up the circuit in Fig. 3.1. 2. Measure the current (IL), through Road and the voltage (VL), across RLoad. 3. Find
Posted: Tue Jun 07, 2022 10:02 am
1. Set up the circuit in Fig. 3.1. 2. Measure the current (IL), through Road and the voltage (VL), across RLoad. 3. Find the Thevenin equivalent circuit seen by RLoad (i.e. the equivalent circuit between nodes A & B, with RLoad removed from the circuit). To get the equivalent circuit, follow these steps: a. Remove Road from the circuit. b. Measure VAB (open circuit voltage = Thevenin Voltage =VT). c. Set all the voltage sources to zero volts, and use the ohmmeter to measure the equivalent resistance between nodes A & B (This is the Thevenin Resistance=RT).
R1 ww 1kQ R5 Σ2.7ΚΩ Rload 1.8kQ V1 b 5V + VL- R3 R6 55.6ΚΩ 4.7KQ Figure 3.1. Linear Circuit to Study Thevenin 4. Return the circuit to Figure 3.1. Set V, to zero, and measure the Thevenin equivalent voltage (VTI) seen by RLoad. 5. Compare VRL and IRL to those measured in step 2. RT ww + VRL VT RLoad Figure 3.2 Thevenin equivalent circuit a R2 -10kQ R4 ww 10kQ IL Hilt V2 10V
R1 ww 1kQ R5 Σ2.7ΚΩ Rload 1.8kQ V1 b 5V + VL- R3 R6 55.6ΚΩ 4.7KQ Figure 3.1. Linear Circuit to Study Thevenin 4. Return the circuit to Figure 3.1. Set V, to zero, and measure the Thevenin equivalent voltage (VTI) seen by RLoad. 5. Compare VRL and IRL to those measured in step 2. RT ww + VRL VT RLoad Figure 3.2 Thevenin equivalent circuit a R2 -10kQ R4 ww 10kQ IL Hilt V2 10V