IEICE TRANSACTIONS on Fundamentals
EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters
Summary :
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).
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.4 pp.1004-1011
- Publication Date
- 2009/04/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E92.A.1004
- Type of Manuscript
- Special Section PAPER (Special Section on Advanced Technologies Emerging Mainly from the 21st Workshop on Circuits and Systems in Karuizawa)
- Category
Authors
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
Keyword
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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},}
Copy
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 -
English
