Document Type and Number:
Japanese Patent JPS6325641
Kind Code:
Y2
Abstract:
A drive circuit for a piezoelectric actuator includes a pair of power input terminals for supplying either AC or DC power, with the piezoelectric actuator being connected between these power input terminals. A device for supplying current for driving the piezoelectric actuator in one direction is interposed between one of the power input terminals and an end of the piezoelectric actuator. Further, there is provided connected in parallel to the piezoelectric actuator a switching circuit which turns into a high resistance state when the device is on and serves as an active discharge path for the electric charges of the piezoelectric actuator.
Application Number:
JP5916583U
Publication Date:
July 13, 1988
Filing Date:
April 19, 1983
Export Citation:
International Classes:
H01H57/00; H01H47/22; H01L41/04; H01L41/09; (IPC1-7): H01H57/00
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