Figure P7.70 shows the ac equivalent of the compensation scheme of Fig. 7.93b (to ease analysis, the CG buffer is shown as ideal.) Find the gain a(s) 5 VoyVi , verify that the transmission zero has...

Figure P7.70 shows the ac equivalent of the compensation scheme of Fig. 7.93b (to ease analysis, the CG buffer is shown as ideal.) Find the gain a(s) 5 VoyVi , verify that the transmission zero has been moved to infi nity, and obtain approximate expressions for its poles f 1 and f 2 under the assumption f 1 ! f2. Compare with Eqs. (7.112) and (7.113) and comment.