现代电子技术Issue(2)：159-162,4.
星用基于UC1845多路输出双管反激开关电源设计
Design of satellite multi-channel output dual switch flyback power supply based on UC1845
刘鑫 1王卫国 1刘克承 1张乾1
作者信息
- 1. 兰州空间技术物理研究所，甘肃 兰州 730000
- 折叠
摘要
Abstract
In order to solve the problem of the switch voltage stress and multi-channel output stability of the spacecraft DC/DC converters when the high voltage input and multi-channel output occur,a sort of multi-channel output dual switch flyback power supply based on UC1845 was designed. The dual switch flyback converter is adopted in main circuitas to make the voltage stress of each main switch just input voltage to meet the high reliability application requirement of spacecraft. Additionally,the magnetically-isolated feedback voltage stabilization control is used in the circuit to control the multi-channel output. The low dropout three terminal voltage stabilizer is employed at the output end. The output load stability degree of each channel is better than ± 1%. The current-controller UC1845 is adopted in control circuit. It has advantages of high voltage regulation rate,high load regulation rate,fast transient response. The experimental result shows that the power supply is safe,reliable,has high sta-bility,small ripple,high efficiency,and meets the design requirements.关键词
开关电源/双管反激/UC1845/多路输出Key words
switching power supply/dual switch flyback/UC1845/multi-channel output分类
信息技术与安全科学引用本文复制引用
刘鑫,王卫国,刘克承,张乾..星用基于UC1845多路输出双管反激开关电源设计[J].现代电子技术,2014,(2):159-162,4.
