Why do I need "softstart"?

The inverse piezoelectric effect is a solid state phenomena that results from the arrangement of the polarized unit cells depending on the applied electrical field. During long term storage, depolarization may occur so that the dielectric field strength within the multilayer piezo ceramic decreases.

An abrupt application of high voltage may cause the piezo actuator to short circuit. To avoid this risk, the automatically launching softstart procedure re-polarizes and refreshes the piezo ceramic.

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