The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Este artigo propõe algoritmos de modulação de clock de espectro espalhado para redução de EMI em conversores CC-CC controlados digitalmente. Em reguladores de comutação que usam PWM, o ruído de comutação e o ruído harmônico concentrados em um espectro estreito em torno da frequência de comutação podem causar EMI grave. A modulação de clock de espectro espalhado pode ser usada para minimizar EMI. Em reguladores de comutação convencionais que usam controle analógico, é muito difícil realizar clocking de espectro espalhado complexo; no entanto, este artigo mostra que é relativamente fácil implementar a redução EMI de espectro espalhado usando controle digital. O algoritmo proposto foi verificado utilizando um simulador de conversor de potência (SCAT).
Ibuki MORI
Yoshihisa YAMADA
Santhos A. WIBOWO
Masashi KONO
Haruo KOBAYASHI
Yukihiro FUJIMURA
Nobukazu TAKAI
Toshio SUGIYAMA
Isao FUKAI
Norihisa ONISHI
Ichiro TAKEDA
Jun-ichi MATSUDA
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Ibuki MORI, Yoshihisa YAMADA, Santhos A. WIBOWO, Masashi KONO, Haruo KOBAYASHI, Yukihiro FUJIMURA, Nobukazu TAKAI, Toshio SUGIYAMA, Isao FUKAI, Norihisa ONISHI, Ichiro TAKEDA, Jun-ichi MATSUDA, "EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 4, pp. 1004-1011, April 2009, doi: 10.1587/transfun.E92.A.1004.
Abstract: This paper proposes spread-spectrum clock modulation algorithms for EMI reduction in digitally-controlled DC-DC converters. In switching regulators using PWM, switching noise and harmonic noise concentrated in a narrow spectrum around the switching frequency can cause severe EMI. Spread-spectrum clock modulation can be used to minimize EMI. In conventional switching regulators using analog control it is very difficult to realize complex spread-spectrum clocking, however this paper shows that it is relatively easy to implement spread-spectrum EMI-reduction using digital control. The proposed algorithm was verified using a power converter simulator (SCAT).
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.1004/_p
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@ARTICLE{e92-a_4_1004,
author={Ibuki MORI, Yoshihisa YAMADA, Santhos A. WIBOWO, Masashi KONO, Haruo KOBAYASHI, Yukihiro FUJIMURA, Nobukazu TAKAI, Toshio SUGIYAMA, Isao FUKAI, Norihisa ONISHI, Ichiro TAKEDA, Jun-ichi MATSUDA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters},
year={2009},
volume={E92-A},
number={4},
pages={1004-1011},
abstract={This paper proposes spread-spectrum clock modulation algorithms for EMI reduction in digitally-controlled DC-DC converters. In switching regulators using PWM, switching noise and harmonic noise concentrated in a narrow spectrum around the switching frequency can cause severe EMI. Spread-spectrum clock modulation can be used to minimize EMI. In conventional switching regulators using analog control it is very difficult to realize complex spread-spectrum clocking, however this paper shows that it is relatively easy to implement spread-spectrum EMI-reduction using digital control. The proposed algorithm was verified using a power converter simulator (SCAT).},
keywords={},
doi={10.1587/transfun.E92.A.1004},
ISSN={1745-1337},
month={April},}
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TY - JOUR
TI - EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1004
EP - 1011
AU - Ibuki MORI
AU - Yoshihisa YAMADA
AU - Santhos A. WIBOWO
AU - Masashi KONO
AU - Haruo KOBAYASHI
AU - Yukihiro FUJIMURA
AU - Nobukazu TAKAI
AU - Toshio SUGIYAMA
AU - Isao FUKAI
AU - Norihisa ONISHI
AU - Ichiro TAKEDA
AU - Jun-ichi MATSUDA
PY - 2009
DO - 10.1587/transfun.E92.A.1004
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 4
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - April 2009
AB - This paper proposes spread-spectrum clock modulation algorithms for EMI reduction in digitally-controlled DC-DC converters. In switching regulators using PWM, switching noise and harmonic noise concentrated in a narrow spectrum around the switching frequency can cause severe EMI. Spread-spectrum clock modulation can be used to minimize EMI. In conventional switching regulators using analog control it is very difficult to realize complex spread-spectrum clocking, however this paper shows that it is relatively easy to implement spread-spectrum EMI-reduction using digital control. The proposed algorithm was verified using a power converter simulator (SCAT).
ER -