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

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

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