Using a control law, I optained vdot=-a^2-b^2 for the stability analysis. Then I changed the control law and optained vdot=-a^2-b^2-c^2. Now my question is if the second control law is better or not? If a negetive term (i.e., -c^2) is added to the v dot, the control performance and robustness can be better?

 

Sorry to get off the discussion track a bit, I want to ask the steps that I need to learn so that I am proficient in electronics, where do I start? please give suggestions like making a flow chart