电子器件2018，Vol.41Issue(2)：324-328,5.DOI:10.3969/j.issn.1005-9490.2018.02.009
基于TL494的双向DC-DC变换器设计
The Design of Bi-Directional DC-DC Converter Based on TL494
摘要
Abstract
In the light of the actual demand of charging and discharging of battery pack,the bi-directional dc-dc converter scheme based on TL494 is proposed.Charging with synchronous Buck topology structure,step and adjustable constant current charging mode,real-time monitors the size of the charging current and the charge and discharge voltage,with the ability of overcharge protection and overvoltage after disappeared to recover automatically. Discharge with synchronous Boost topology,the load constant current is supplied.Charging current within 1 A~2 A step by step, step value is not more than 0.1 A,current control accuracy is not lower than 5%,the rate is not greater than 1%,the efficiency of the converter is 92.29%,the accuracy is not lower than 3.9%.For the discharge mode,the output voltage is 30±0.5 V,the converter is 90.19%.The entire design prototype weighs only 440 g and has certain practical applica-tion value.关键词
双向DC-DC变换器/同步Buck/同步Boost/TL494/充放电Key words
Bi-directional DC-DC converter/synchronous buck/synchronous boost/TL494/charge and discharge EEACC:1290B分类
信息技术与安全科学引用本文复制引用
瓮嘉民,李小魁,陈佳闯..基于TL494的双向DC-DC变换器设计[J].电子器件,2018,41(2):324-328,5.基金项目
国家自然科学基金项目(61403123,61305106) （61403123,61305106）
