Piezoelectric ceramic material with large power output ability and transformer made of it

摘要

The present invention relates to a piezoelectric ceramic which is used for the piezoelectric transformer, and an object thereof is to provide a transformer the dielectric constant and mechanical quality factor (Qm), the electromechanical coupling factor (Kp) is superior high power using the same as the piezoelectric ceramic composition.; The present invention for achieving the abovementioned objects is; Pb [( ) _X ( ) And _1-x] O ₃ + yPbO and composition to + zMnO, x is 0.01~0.05, y is 0.03~0.6wt, z is a piezoelectric ceramic composition composed of a high-output below 0.7wt,; The piezoelectric ceramic composition with the piezoelectric block;; The first electrode is an internal electrode and electrically isolated from each other with the internal electrodes formed on a central portion of a side surface of the piezoelectric blocks made of external electrodes formed on the outside;; And that on the transformer comprising a second electrode formed on the lower surface of the piezoelectric block to the base technology.