@article{Hui:1998:10.1109/63.728332,
author = {Hui, SY and Shrivastava, Y and Sathiakumar, S and Tse, KK and Chung, HSH},
doi = {10.1109/63.728332},
journal = {IEEE Transactions on Power Electronics},
pages = {1046--1055},
title = {A comparison of nondeterministic and deterministic switching methods for DC-DC power converters},
url = {http://dx.doi.org/10.1109/63.728332},
volume = {13},
year = {1998}
}

Download

TY  - JOUR
AB  - An analysis and experimental results of the random pulsewidth modulation (RPWM) and random pulse-position modulation (RPPM) methods for dc-dc converters are presented. The characteristics and performance of power converters under two randomized modulations are evaluated. The theoretical relationships of discrete harmonics, continuous noise, and output-voltage ripple of the RPWM and RPPM schemes are established and compared with those of a standard deterministic pulsewidth modulation (PWM) scheme in a buck converter. Limitations in the randomly switched dc-dc converters, which have not been addressed before, are highlighted. Randomized schemes generally have inherent problems in achieving low-output-voltage ripple due to the low-frequency continuous noise within the passband of the converter filter. The inherent low-frequency noise-induced voltage ripple problems of nondeterministic switching methods for dc converters are confirmed experimentally. The performance of the RPPM method is found to be closer to the standard PWM method than that of the RPWM method. For dc-dc power conversion, the RPPM method offers much better output-voltage performance than the RPWM method.
AU  - Hui,SY
AU  - Shrivastava,Y
AU  - Sathiakumar,S
AU  - Tse,KK
AU  - Chung,HSH
DO  - 10.1109/63.728332
EP  - 1055
PY  - 1998///
SN  - 0885-8993
SP  - 1046
TI  - A comparison of nondeterministic and deterministic switching methods for DC-DC power converters
T2  - IEEE Transactions on Power Electronics
UR  - http://dx.doi.org/10.1109/63.728332
VL  - 13
ER  - 

Download