This paper contains a detailed investigation of three sources contributing to pulse timing errors during switching within a half-bridge or full-bridge configuration, i.e., dead time, the switching device�s turn-on and turn-off delays as well as the nonlinear rise and fall switching transitions. The analysis is based on a novel simulation strategy that makes use of Newton�s numerical method. The separate effect of each pulse timing error on harmonic distortion is established, after which a combination model is introduced describing the interaction between these timing errors.