发明名称 |
Driving apparatus for ultrasonic motor |
摘要 |
In a driving apparatus for an ultrasonic motor, which motor has a stator comprising a pair of piezoelectric members for generating travelling mechanical vibrations, the driving apparatus has an oscillator, a phase shift circuit, and delay circuits. By deferring phases of two control signals for two switching devices, there is no fear of dangerous simultaneous turn-ons of the switching devices.
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申请公布号 |
US4833359(A) |
申请公布日期 |
1989.05.23 |
申请号 |
US19880143093 |
申请日期 |
1988.01.12 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TANOUE, HIROMI;HARAO, NORIYUKI;TAKAHASHI, KENICHIROH |
分类号 |
H02N2/00;H01L41/04;H02N2/14 |
主分类号 |
H02N2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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