Drive circuit for piezoelectric stack

Details Drive circuit for piezoelectric stack Drive circuit for piezoelectric stack

H - Electricity

01

L

318/2

H01L 41/08 (2006.01) H01L 41/04 (2006.01)

Patent

CA 1219036

ABSTRACT A drive circuit for a piezoelectric stack which drives a desired mechanical object such as a printing head of a dot matrix printer or an ink jet printer. A winding is connected in series with one of electrodes of the piezo- electric stack so that an excitation voltage is applied to the stack via the winding. An excessive charge current at each time of drive and an excessive discharge current at each time of recovery are prevented.

452787

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