Study on spectral analysis and design for DC/DC conversion using random switching rate PWM

Author

Kirlin, R. Lynn ; Wang, Jian ; Dizaji, R.M.

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

fYear

2000

fDate

2000

Firstpage

378

Lastpage

382

Abstract

We give the formulation of the power spectral density of the randomized pulse width modulation (RPWM) DC/DC converter based on both constant duty cycle and constant pulse width schemes. We analyze the spectral formulas based on the constant duty cycle and develop a means for nulling the power spectral density at one specified frequency and its harmonics. We revert to optimization methods when switching frequency range is subject to practical constraints. Simulation results illustrate the effectiveness of our approach

Keywords

DC-DC power convertors; PWM power convertors; circuit optimisation; spectral analysis; switching circuits; DC/DC conversion; DC/DC converter; constant duty cycle; constant pulse width; harmonics; nulling; optimization methods; power spectral density; pulse width modulation; random switching rate PWM; simulation; spectral analysis; switching frequency range; Coplanar waveguides; Harmonic analysis; Optimization methods; Power system harmonics; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Spectral analysis; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal and Array Processing, 2000. Proceedings of the Tenth IEEE Workshop on

Conference_Location

Pocono Manor, PA

Print_ISBN

0-7803-5988-7

Type

conf

DOI

10.1109/SSAP.2000.870149

Filename

870149