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Simplified unipolar, quasisquare wave energy recovery drive circuits for piezoelectric actuators

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1 Author(s)
Robbins, W.P. ; Dept. of Electr. & Comput. Eng., Minnesota Univ., USA

A simple two-switch circuit for driving piezoelectric actuators with unipolar quasisquare waves is presented. The circuit provides for recovery of the energy stored on the actuator capacitance back to the primary power supply when the actuator is de-energized.

Published in:

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on  (Volume:52 ,  Issue: 8 )