Wave motor driving circuit.

摘要

A wave motor driving circuit for driving moveable body of a wave motor (4) frictionally by vibrations generated by applying a driving signal to an electromechanical transducer fixed to an elastic body, comprises a driving waveform circuit (2) for forming a driving signal to drive the wave motor and a position sensor (5) for detecting rotational position of the moveable body. A position detector circuit (6) outputs positional information from the position sensor (5) in accordance with a request signal (16). A detection control circuit (7) generates the request signal (16) and alters an interval of generation of request signals in response to positional information from the position detector means.