Elimination of Harmonic Spikes using Second-Order Space Dithered Sigma-Delta Modulation

被引：0

作者：

Kim, Seo-Hyeong ^{[1
]}

Lee, Kyo-Beum ^{[1
]}

机构：

[1] Ajou Univ, Div Elect & Comp Engn, Suwon 441749, South Korea

来源：

EPE: 2009 13TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS, VOLS 1-9 | 2009年

关键词：

Sigma-Delta Modulation; Random PWM; Harmonic Spikes; DC/DC converter; PWM; FILTERS;

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

This paper proposes second-order SDSDM (Space Dithered Sigma-Delta Modulation) to suppress the harmonic spikes in power conversion. PWM (Pulse Width Modulation) normally operates with a fixed switching frequency, which causes power spectrum to be concentrated at multiples of the switching frequency. The proposed scheme is confirmed in the DC/DC converter. The experimental results show that the proposed method provides improved performance in reducing harmonic spikes caused by PWM while maintaining the low current ripples.

引用

页码：2767 / +

页数：2

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