Oscillation controlled electronic systems design using Posicast-based pulse pre-shaping

In this paper, a novel method is proposed to make electronic systems instability safe using pulse pre-shaping techniques. The under test target systems in this work are the electronic systems that experience pulse like inputs. This method reduces the overshoot of the system's response and improves the settling time significantly using Posicast-based input command shaping. The method is applied on three types of systems which have oscillation and overshoot in their step response. Simulation results are shown to verify the effectiveness of the proposed method on oscillation and overshoot canceling. Experimental results of HSPICE simulations show that the overshoot of discussed systems is decreased more than 95% and in some cases is canceled completely that leads to increase of phase margin and complete stability of system. Also, the settling time is improved more than 78% for each three systems. Besides, the effects of pre-shaped Posicast pulse non-idealities like variations and jitters on systems response are completely simulated. The effective non-ideal factors on Posicast response are: variation in time of applying Posicast command (jitter noise) and voltage level of Posicast command.