Title :
Closed-form spectral analysis of pulse-width modulation
Author_Institution :
Integrated Circuit Technol. Res. Lab., Motorola Inc., Schaumburg, IL, USA
Abstract :
This paper analyzes a pulse modulation system termed click modulation (CM) and shows that it is equivalent to single-sided pulse-width modulation (PWM) with a modified input signal. This paper then develops a spectral series for PWM with an arbitrary input duty ratio signal. Finally, a distortion equation for uniform-sampled PWM is given as a special case of natural-sampled PWM. The resulting analyses are confirmed through simulation
Keywords :
electric distortion; network analysis; numerical analysis; pulse width modulation; spectral analysis; PWM; click modulation; closed-form spectral analysis; distortion analysis; distortion equation; input duty ratio signal; simulation; single-sided pulse-width modulation; spectral series; uniform-sampled PWM; Analytical models; Integrated circuit technology; Nonlinear distortion; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Signal analysis; Signal synthesis; Space vector pulse width modulation; Spectral analysis;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921453
