电源技术2011，Vol.35Issue(11)：1425-1428,4.
高输入输出变比的两级式DC/DC变换器
Two-stage DC/DC converter for high voltage input low voltage output case
张玄 1宁国云 2毛康宇 2黄声华1
作者信息
- 1. 华中科技大学电气与电子工程学院,湖北武汉430074
- 2. 大禹电气科技股份有限公司,湖北孝感432000
- 折叠
摘要
Abstract
Two-stage converter is more applicable than the single-stage converter for high voltage input low voltage output case. A Buck + LLC resonance full bridge topology was introduced in this paper. The operation principles and the characteristics of the LLC resonance full bridge topology were introduced. Then based on stability analysis of the two-stage converters high efficiency was achieved via rationally choosing the output voltage of front stage Buck circuit, the transformer turn ratio and resonance elements values of the end stage LLC resonance full bridge circuit. Finally, a 1 kW converter was designed, which had 210-270 V input and 27 V output. Then the experiment result was given.关键词
两级式变换器/LLC谐振全桥/稳定性分析Key words
two-stage converter/ LLC resonance full bridge/ stability analysis分类
信息技术与安全科学引用本文复制引用
张玄,宁国云,毛康宇,黄声华..高输入输出变比的两级式DC/DC变换器[J].电源技术,2011,35(11):1425-1428,4.
