Study of Contactless Power Supply for Spindle Ultrasonic Vibrator

2017 3rd International Conference on Energy, Environment and Materials Science

能源学;生态环境科学;材料科学

Chen, T.R.^1 ; Lee, Y.L.^1 ; Liu, H.T.^1 ; Chen, S.M.^1 ; Chang, H.Z.^1

Department of Electrical Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua City, Taiwan^1

关键词: A-stable;    Ac power;    Contactless power supply;    Contactless transformer;    Output power;    Power supply;    Series parallel resonant;    Ultrasonic motors;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/94/1/012099/pdf
DOI  :  10.1088/1755-1315/94/1/012099

来源: IOP

【 摘 要 】

In this study, a contactless power supply for the ultrasonic motor on the spindle is proposed. The proposed power supply is composed of a series-parallel resonant circuit and a cylindrical contactless transformer. Based on the study and rotation experiments, it can be seen that the proposed power supply can both provide a stable ac power with 25 kHz / 70 V to the ultrasonic motor. When the output power is 250 W, the efficiency of the proposed supply is 89.8 % in respectively rotation tests. When the output power is more than 150 W, the efficiency of the proposed supply is higher than 80 % within the rated output power range.