Single-Stage Single-Switch Switched-Capacitor Buck/Buck-Boost-Type Converter

被引：49

作者：

Axelrod, B. ^{[1
]}

Berikovich, Y. ^{[1
]}

Tapuchi, S. ^{[2
]}

Ioinovici, A. ^{[1
]}

机构：

[1] Holon Inst Technol, Dept Elect & Elect Engn, IL-58102 Holon, Israel

[2] Sami Shamoon Coll Engn, Dept Elect & Elect Engn, Beer Sheva, Israel

来源：

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 2009年 / 45卷 / 02期

关键词：

TO-DC-CONVERTER;

D O I：

10.1109/TAES.2009.5089531

中图分类号：

V [航空、航天];

学科分类号：

082501 [飞行器设计];

摘要：

A new dc-dc converter featuring a steep step-down of the input voltage is presented. It answers a typical need for on-board aeronautics modern power architectures: power supplies with a large conversion ratio able to deliver an output voltage of 1-1.2 V. The proposed structure is derived from a switched-capacitor circuit integrated with a buck converter; they share the same active switch. The proposed solution removes the electromagnetic interference (EMI) emission due to the large di/dt in the input current of the switched-capacitor power supplies. Compared with a quadratic buck converter, it presents a similar complexity, a smaller reduction in the line voltage at full load (but less conduction losses due to smaller input inductor current and capacitor voltage), lower voltage stresses on the transistor and diodes, lower current stresses in the diodes, and smaller size inductors. A similar structure using a buck-boost converter as the second stage is also presented. The experimental results confirm the theoretical developments.

引用

页码：419 / 430

页数：12

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