摘要
针对模拟触发器和基于微机控制的数字触发器存在的不足。提出了一种以复杂可编程逻辑器件(CPLD)和锁相环技术为核心的新型通用数字触发器,对其硬件电路和软件设计进行了详细分析。最后通过实验验证了该触发器的有效性和可行性。另外,由于CPLD 具有在线多次编程功能。因此该触发器不必改变外围电路,只需在线修改软件程序,适用于各种晶闸管触发装置中。该触发器不仅控制精度高,调式方便,而且应用灵活,成本低廉,可以满足不同类型触发电路的要求。
Aimed at the defect of the analog trigger and the digital trigger controlled by microcomputer. A new uni,~ersal digital trigger based on CPLD and PLL is introduced. The CPLD software and the peripheral hardware designs are analyzed in detail. Finally, simulation and experimental results show that scheme is validity and feasible. Aside, due to CPLD is proved with programmed function of online many times, so its periphery circuit need not change, only need to change software program, it is true to various SCR triggers. The trigger is not only control precision high and operation convenience, but apply agility and cost low, it can satisfy request of various trigger circuit.
出处
《电气自动化》
北大核心
2008年第3期30-32,40,共4页
Electrical Automation
关键词
新型通用数字触发器
自动对相
可控整流电源
复杂可编程逻辑器件
锁相环
实验研究
a new universal digital trigger auto-adjusting of tie pulse sequence controlled rectification power supply CPLD PLL experimental study
