【摘要】 分析了传统的模拟相控触发电路的优缺点,在此基础上提出了一种基于CPLD的三相全控桥数字触发电路。利用MAXPLUS2开发工具,设计了数字触发器的电路原理图。触发电路主要包括无环流换相逻辑单元和触发脉冲生成单元两部分。在不同触发情况下,对所设计的电路进行了实验调试,实验波形与理论分析结果及仿真波形都保持一致。实验结果分析表明,所设计的三相全控桥数字触发器具有较高的精确性、稳定性、可靠性以及对称性。更多还原

【Abstract】 The characteristics of conventional analog trigger are analyzed,and a digital trigger circuit of three-phase full-control-bridge based on CPLD is proposed.The principle diagram of digital trigger circuit is designed with MAXPLUS2.It consists of non-circulative current commutation unit and pulse trigging unit.The experiment results on different conditions are same as the theoretical and simulated ones.The analysis of the results shows the accuracy,stability,reliability and symmetry of designed trigger.更多还原