Common-grounded BLDCM Drive System Based on FPGA
This paper proposed a kind of common-grounded brushless DC motor (BLDCM) drive system based on field programmed gate array FPGA control. The proposed system has two characteristics: one is that the former 60° of every drive lag applies pulse width modulation (PWM) and the latter 60° conducts constantly(PWM_ON modulation); the other is that there are no isolating optical couplers between control circuit and drive circuit. So the proposed system has some advantages such as reducing ripple of electromagnetic torque, simplifying drive circuit to reduce the delay of signals, and reducing the cost and bulk of drive system. A prototype is designed based on FPGA chip, and experimental results demonstrated the validity of relative theory.
common-grounded drive BLDCM FPGA PWM_ON modulation
Pinghua Tang Tiecai Li
Department of Electrical Engneering Harbin Industry of Technology Harbin, CHINA
国际会议
2007 IEEE International Conference on Automation and Lofistics
山东济南
英文
2007-08-18（万方平台首次上网日期，不代表论文的发表时间）