Cart (Loading....) | Create Account
Close category search window
 

Novel random pulse width modulator with constant sampling frequency based on the TMS320F240 DSP controller

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Bin Huo ; Dept. of Electr. Eng., Nevada Univ., Reno, NV, USA ; Trzynadlowski, A.M. ; Panahi, I. ; Mohammed, A.
more authors

A novel random pulse width modulator with variable switching frequency but constant sampling frequency is proposed for application in voltage source inverters for adjustable-speed AC drives. The decoupling of these two frequencies allows the optimal sampling ratio for closed-loop control purposes to be maintained, while the randomly varying switching ratio results in the transfer of harmonic power of the inverter output voltage into the continuous power density. This mitigates the undesirable acoustic, vibration, and EMI phenomena associated with fixed-frequency switching. A novel, so-called harmonic spread factor is introduced for quality evaluation of voltage spectra of inverters with random PWM. Practical realization of the modulator using the TMS320F240 DSP controller is described, and the results of simulations and experiments are presented

Published in:

Industrial Electronics Society, 1999. IECON '99 Proceedings. The 25th Annual Conference of the IEEE  (Volume:1 )

Date of Conference:

1999

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.