Thevenin Equivalents

The purpose of this lab is to determine the smallest equivalent load #2 resistance that can be succesfully used. We are to reduce the network to an equivalent source and series resistance. We are given that RC1 = 100 ohms RC2 = RC3 = 39 ohms RL1 = 680 ohms VS1 = VS2 =9V VLoad 2,min = 8V.

Through the use of nodal analysis we establish that VLoad 2 = 8.643V VY = 5.11V RTh = 65.98 ohms. The smallest permissible RL2 = 819 ohms short circuit current I = 9.76 mA and open circuit voltage V = 8.64V