摘要
复杂可编程逻辑器件(CPLD)可实现强大的数字逻辑功能。利用该特性实现了无刷直流电动机(BLDCM)双极性驱动逻辑控制,可提高低速运行时的稳定性。CPLD可简化控制芯片的外围设置,同时能实现开关管的死区控制,避免了相桥臂直通。在理论分析和仿真的基础上,设计了电机运动控制器,给出了一些关键环节的时序图和实验波形。控制器实验结果与理论分析基本吻合,验证了控制方法的正确性。
Complex Programmable Logic Device （CPLD） are good at Boolean calculation, this paper presents the principle of bipolar drive based on CPLD for control unit of BLDCM. Bipolar drive availed to control the Brushless DC Motor （BLDCM）, and enhanced the stability of the motor at low speed. The peripheral devices of CPU could be simplified. As dead-time was actualized, the short through of phase bridge could be avoided. Finally, the measurements are taken on a motive controller. The experiment results are coincided with the simulation and the theoretical analysis, the controlling timings and waves are provided partly. The feasibility and the correctness of the bipolar drive for BLDCM are verified.
出处
《微电机》
北大核心
2006年第5期50-53,共4页
Micromotors
