基于FPGA的焊接电源给定电流波形的研究  

Research of preset current waveform for welding power source based on FPGA

作　　者：范佳春[1] 付虹[1] 

机构地区：[1]长春工业大学电气与电子工程学院,130012

出　　处：《焊接》2015年第3期45-48,71,共4页Welding & Joining

摘　　要：介绍了多模块建模的设计和实施,通过自己设计功能模块,结合FPGA的并行执行能力,来实现这种可定制的事件驱动体系结构的模块化处理程序,这将有助于应用程序开发人员快速开发,多应用模块的添加可以满足应用的多种需要。文中融入了"低级建模思想",建立了自主独立的功能模块,同时利用状态机进行控制模块的设计,阐述了基于FPGA的自主模块性能,并与传统DDS(Direct Digital Synthesis)产生波形的方式进行了比较,结论表明基于FPGA的功能模块实现,提高了系统效率,更节省FPGA内部逻辑资源,也提升了系统的灵活度。The modeling module design and implementation were introduced.With function module designed by authors and combining with the use of FPGA parallel execution ability,the customizable event-driven architecture modular handling program was achieved,which can help to quickly develop their applications by adding the required number of function module as the variety of needs of application.By integrating the more modules of 'the low-level modeling thought',autonomous function module was established,in which the state machine was used to design the control modules,and the performance of FPGA-based function module was discussed and compared with the use DDS(Direct Digital Synthesis) required waveforms of ROM table implementation.Results show that the FPGA-based implementation improves the system efficiency,saves the inside of logic resources FPGA,and increases the flexibility of the system.

关 键 词：可编程逻辑门阵列 直接数字合成 低级建模思想 状态机 

分 类 号：TG434[金属学及工艺—焊接]