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 |
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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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Priority: |
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PCT: |
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