Question for practice: Compensating Network

1. 1.      What do you  mean by compensator?
2. 2.      Discuss lead/Lag/Lag-lead compensator? Sketch the bode plot and polar plot for Lead/Lag/  Lag-lead compensator network.
3. 3.      Sketch the bode plot  and Pole-Zero plot of lag-lead compensator.
4. 4.      What  are limitations of lead compensation?
5. 5.      Whar are the effects of  lag-lead compensator on the performance of the system.