ELEC195 LAB #8 2/6/03 J. F. Santacroce
NAME:____________________________
ELEC195 CIRCUIT THEORY II
PARTNERS:________________________
________________________
DATE:_____________________________
LAB #8 THEVENIN’S THEOREM
OBJECTIVE:
To calculate the load voltage and load current using Thevenin’s Theorem.
To verify your results by using Pspice simulation to verify the load voltage and load
current for the circuit.
EQUIPMENT: PARTS & SUPPLIES
HP-33120A Function Generator
HP-54600 Oscilloscope
1 – 100 , ¼ W Resistor
1 – 220 , ¼ W Resistor
HP-34401A Multimeter 1 – 330 , ¼ W Resistor
1 - Analog Breadboard 2 – 0.1 uF, Capacitors
1 - CDA 3 Decade Capacitor Box 1 – 0.047 uF, Capacitor
1 - CDA 5 Decade Capacitor Box
1 – Resistor Decade Box
1 Sets Banana to Alligator Clip Leads
2 Sets BNC to Alligator Clip Leads
1 Set BNC to Alligator Clip Leads( Blue
Band).
DISCUSSION:
The series-parallel circuit shown in Figure #1 is to be analyzed using Thevenin’s
Theorem. During this experiment you will measure Thevenin’s equivalent circuit and
subsequently verify your results using Pspice.
Thevenin’s equivalent voltage directly measured as the open-circuit voltage with the load
capacitor, CL removed. Thevenin’s equivalent impedance will be calculated by first
measuring the following parameters; vOC (open-circuit voltage) and iSC (short-circuit
current) and then satisfying the equation given below:
ZTH = vOC / iSC
1
