A balanced bridge network is shown in Figure P3.2.

(a) Show that the A and B matrices for this circuit are

-2/((R+R2)C) 0 0 L)]. -2RR2/((R + R)L) B = 1/(R + R) 1/C/CL] -R/L (b) Sketch the block diagram. The state variables are (x1(t), x2(t)) = (vc(t), i(t)). L iz(t) www R2 www R R R + v (1) v(1) V(1) FIGURE P3.2 Balanced bridge network.