CAJ | 학술논문

本文以STC15F2K61S2单片机和TL494作为控制器的核心,利用电流内环—电压外环的双环路控制方式实现高精度、1A~2A的恒流功能,采用同步BUCK拓扑结构提升DC-DC的转换效率至90%~92%.将充电时的实际电流和设定的电流通过数码管显示,用键盘调节电流步进值、控制电流精度以及变换率.
본문이STC15F2K61S2단편궤화TL494작위공제기적핵심,이용전류내배—전압외배적쌍배로공제방식실현고정도、1A~2A적항류공능,채용동보BUCK탁복결구제승DC-DC적전환효솔지90%~92%.장충전시적실제전류화설정적전류통과수마관현시,용건반조절전류보진치、공제전류정도이급변환솔.
By using the STC15F2K61S2 microcontroller and TL494 as the core controller,the current inner - outer voltage dual-loop control to achieve high precision,and the 1A ~ 2A constant current function,with the syn-chronous BUCK topology,the converter enhances DC-DC conversion efficiency to 90% -92%.The actual current and the set charging current show on the nixie display.The current's step value,accuracy and conversion rate can be controlled by a keyboard.