標題: Dual Modulation Technique for High Efficiency in High Switching Buck Converters Over a Wide Load Range
作者: Tsai, Jen-Chieh
Huang, Tsung-Ying
Lai, Wang-Wei
Chen, Ke-Horng
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2010
摘要: The design of a compact size switching converter under high switching operation causes a drastically decreasing in power conversion efficiency. This paper presents a dual modulation technique to improve the power conversion efficiency with a little increase in output ripple. Especially, the trade-off between the output ripple and the efficiency can meet the requirement of the portable devices. Simulation results show that the converter can operate at 5 MHz with a supply voltage from 3V to 4.5V. The output voltage ripple can be kept smaller than 30mV when load current varies from 20mA to 800mA. Besides, the power efficiency is higher than 85% over a wide load current range.
URI: http://hdl.handle.net/11536/26543
ISBN: 978-1-4244-5309-2
ISSN: 0271-4302
期刊: 2010 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS
起始頁: 3709
結束頁: 3712
Appears in Collections:Conferences Paper