基于FPGA的Boost拓扑恒流输出控制设计

Design of Boost Topology Constant Current Output Control Based on FPGA

传统的Boost拓扑在输出电压稳定性方面存在着一定的局限性,特别是在负载变化时的响应速度和稳定性方面。为了解决这一问题,提出了一种基于现场可编程门阵列(FPGA)的Boost拓扑恒流输出控制方法。首先,对Boost的拓扑结构和工作原理进行了详细分析,以揭示其控制需求和挑战。其次,利用FPGA实时采集输入电压、输出电压和输出电流等参数,并通过比较器比较计算出反馈信号,实现了对Boost拓扑输出电流的闭环控制。最后,通过实验验证了所提出方法的有效性和性能优势。实验结果表明,基于FPGA的恒流输出控制方法具有较好的动态响应特性和稳定性能,在应对负载变化时能够快速调节输出电流,实现了高效稳定的电源输出。该研究对于提高Boost拓扑电路的控制性能,促进电力电子领域的技术进步具有重要意义。

The traditional Boost topology has certain limitations in terms of output voltage stability,especially in terms of response speed and stability when load changes occur.To address this issue,this paper proposes a Boost topology constant current output control method based on Field Programmable Gate Array(FPGA).Firstly,a detailed analysis is conducted on the topology structure and working principle of the Boost topology to reveal its control requirements and challenges.Secondly,using FPGA to collect real-time parameters such as input voltage,output voltage,and output current,and comparing and calculating feedback signals through a comparator,closed-loop control of Boost topology output current is achieved.Finally,the effectiveness and performance advantages of the proposed method are verified through experiments.The experimental results show that the FPGA based constant current output control method has good dynamic response characteristics and stability performance,and can quickly adjust the output current when dealing with load changes,achieving efficient and stable power output.This study is of great significance for improving the control performance of Boost topology circuits and promoting technological progress in the field of power electronics.