基于DDS技术的行波超声电机电源.pdf

基于 S 技术的行波超声电机电源 ,,, (哈尔滨工业大学机电工程学院, 黑龙江哈尔滨 150001) Power Supply for Traveling Wave Ultrasonic Motor Based on S HAO Ming, CHEN Wei- shan, LIU Jun- kao, ZHAO Xue- tao ( School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China) :针对行波超声电机对驱动电源要求, 设计 reached 1was proved by the test result. 了 于直接数字波合成技术( S) 的超声电源. 实 Ke words: ultrasonic motor; S; frequency 现了稳频和精确调整输出信号频率和相位差的功 adjust;phase deference adjust 能. 实验得到了 1 Hz 的频率调整精度和 1的相位 调整精度. 0 引言 :; S; ; :T M356 [ 1] , :A , : 1001- 2257(2007) 09- 0029- 03 , Abstract: According to the demand of power , supply for traveling wave ultrasonic motor, a new . ultrasonic power supply designed based on direct [2] , , digital synthesis( S) technology is presented in , this paper.T he output frequency of the power sup- . [3] ply is steady frequency and phase difference could 2 . adjust accurately. Frequency adjust precision , reached 1 Hz and phase difference adjust precision , ( S) , 2 : 2007- 04- 28 : , = P t/ (mq ) ( 4) , , P = (T d + T t ) 10- 3 (5) . ( 1)~ (5): - 3 Q = (2c - d) k 10 / (q) ( 6) : , = 0.75 kg / L, q = [ 1] .A AMS [ M ] . - 7 :, 2002. 4.6 10 J/ kg,= 85%,c = 237 mm,k= 907 N, [2] MSC. Software. MSC. A AMS/ View = 85 rad/ s