In this paper closed-form conditions for predicting the boundary of period-doubling (PD) bifurcation or saddle-node (SN) bifurcation in a class of PWM piecewise linear systems are obtained from a time-domain asymptotic approach. Examples of switched system considered in this study are switching dc-dc power electronics converters. temperature control systems and hydraulic valve control... https://www.roneverhart.com/Tzora-Feather-Ultra-Light-3-Wheel-Electric-Scooter-Only-41-lbs/