DRIVING CIRCUIT FOR ULTRASONIC WAVE MOTOR
申请(专利)号： JP19870137115
专利号： JPS63302774A 主分类号： H02N2/00 申请权利人： OLYMPUS
OPTICAL CO LTD
公开国代码： JP 优先权国家： JP
摘 要：
PURPOSE:To work an ultrasonic wave motor in an optimum state, by measuring optimum driving frequency with low
tension to store the frequency in memory, at the time of making a power source, and by driving a device with this frequency at the time of actual driving.
CONSTITUTION:So far as the driving circuit of an ultrasonic wave motor is concerned, its working is controlled by a CPU 21, and in memory 20, a program run by the CPU 21 and a parameter necessary for driving motors 30-35
selected by the circuit are stored. By the CPU 21, a frequency decoder 23, an application voltage decoder 22, and a feedback voltage detecting circuit selector 26 are controlled. Besides, the input of the feedback voltage of the motors 30-35 to a feedback voltage detecting circuit 25 is provided, and is selected by the
selector 26, and is fed back to the CPU
申请日： 1987-05-29 公开公告日： 1988-12-09
分类号： H02N2/00;
H01L41/04 发明设计人： YOSHIDA YOICHI;
OKADA JUNJI;
ASAKURA YASUO; HIGUCHI TATSUJI; MATSUZAKI MINORU 申请国代码： JP
优先权： 19870529 JP
13711587
摘 要 附 图：
21 from an A/D converter circuit 27. In this case, at the time of making a power source, the optimum values of respective driving frequencies for the motors 30-35 are found and stored. As a result, the frequencies are read out when normally used, and the motors are driven. 主权项：
权 利 要 求 说 明 书
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DRIVING CIRCUIT FOR ULTRASONIC WAVE MOTOR
