Plume type ultrasonic motor drive power supply with wide frequencies and high step accuracy
Title:
Plume type ultrasonic motor drive power supply with wide frequencies and high step accuracy
Application Number:
02104182
Application Date:
2002/03/15
Announcement Date:
2003/10/01
Pub. Date:
2006/06/07
Publication Number:
1445920
Announcement Number:
1258865
Grant Date:
2006-6-7
Granted Pub. Date:
2006-6-7
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
H02N 2/14
Applicant(s):
Tsinghua Univ.
Inventor(s):
Li Longtu, Xing Zengping, Chu Xiangcheng
Key Words:
Plume type, ultrasonic motor, drive power supply, wide frequencies, high step accuracy
Abstract:
The present invention includes a voltage control oscillator, a control switch with forward/backward rotation, a candidate-pulse forming circuit connecting input end with above the two devices, a candidate pulse synchronous circuit connecting the input end with candidate pulse forming circuit and a timing sequence control circuit separately, a monostable circuit connecting the input end with above-mentioned synchronous circuit, AND gate connecting the input end with the monostable circuit and the candidate pulse forming circuit, a step pulse forming circuit connecting the input end with the monostable and the timing sequence control circuit together with OR gate connecting output end with above-mentioned candidate pulse forming circuit, and a motor driving circuit.
Claim:
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PCT:
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