Thevenin Equivalents

In this lab we analyzed a circuit that we wanted to turn into a Thevenin equivalent. We were first asked to compute the Voltage Thevenin using nodal analysis and we found our value to be 8.643 Volts.

To find the Thevenin resistance we first needed to find the current found by short circuiting the open circuit. Once we found the current with nodal analysis, we divide the V_th with I_sc to find the Thevenin resistance. The resistance was 65.964 ohms. To check our value we can also short circuit the two only voltage sources and find the equivalent resistance, which was 65.946 ohms.

When we created our Thevenin equivalent circuit, our elements measured were: R_th = 66.9 ohms, R_L2,min = 828 ohms, V_th = 8.64 Volts.

Component    Nominal Value    Measured Value
R_th             66 ohms             66.9 ohms
R_L2,min      820.479 ohms     828 ohms
V_th             8.64 Volts           8.64 Volts

Config                    Theoretical Value    Measured Value    Percent Error
R_L2=R_L2,min     8 Volts                   7.81 Volts              2.4%
R_L2= inf Ohms    0                            0                            0