On the low-frequency noise of PWM DC-to-DC converters with random-switching control

被引：0

作者：

Tanaka, T ^{[1
]}

Ninomiya, T

Yoshida, H

机构：

[1] Kagoshima Univ, Dept Elect & Elect Engn, Kagoshima 8900065, Japan

[2] Kyushu Univ, Dept Elect & Elect Engn, Fukuoka 8128581, Japan

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2001年 / E84B卷 / 09期

关键词：

DC-to-DC converter; switching noise; random switching; EMI; EMC;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The low-frequency output noise that is caused by introducing random-switching control into DC-to-DC converters with output regulation, is discussed quantitatively. A modified converter model involving the unintended effect of random switching is derived from the consideration of noise-generation mechanism. After the theoretical analysis based on the model, it is clarified that the magnitude of output noise is in proportion to the variance of switching interval. The experimental results of a buck-type converter are compared with those obtained theoretically, so that the validity of the theoretical results is confirmed experimentally.

引用

页码：2681 / 2687

页数：7

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