I trying to solve a problem which says: A particular design of a voltage regulator is shown. Diodes D_1 and D_2 are 10 mA units, that is each has a voltage drop of 0.7 volts at 10 mA. Each has n=1. (n is emission coefficient). What is regulator voltage with load 150 Ohm connected?
My way of solving this would be the following: I would find first the current \$I_D\$ through the diodes and the actual voltage with load disconnected by iteration method. Later I would use this equation to find the change in voltage with the load connected. $$\Delta V = - I_L (2r_d || 150)$$ where \$r_d=V_T/I_D\$
My question is: is this this a right way to proceed, or should I solve it some other way?