An investigation into the separate and combined effect of pulse timing errors on harmonic distortion in a class D audio amplifier
Date
2008
Authors
Koeslag F.
Du T. Mouton H.
Beukes H.J.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
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. MOSFET turn-on and turn-off delays, dead time, as well as non-linear 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. A combination model is then introduced describing the interaction between the latter three timing errors. ©2008 IEEE.
Description
Keywords
Audio frequency amplifiers, Bridges, Errors, Harmonic distortion, Numerical methods, Time measurement, Bridge configurations, Class D audio amplifier, Combination models, Combined effects, Dead time, Half-bridge, Non-linear, Pulse timing, Simulation strategies, Switching transitions, Timing errors, Turn-off, Power electronics
Citation
PESC Record - IEEE Annual Power Electronics Specialists Conference