| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric transformer small in height, and including a λ/2 single plate type piezoelectric transformer element having a characteristic equivalent to a conventional one as a component. SOLUTION: The λ/2 single plate type piezoelectric transformer element 1 comprises: a polarized drive part provided with input electrodes 3 and 4 on the front and back sides in the thickness direction of an oblong flat piezoelectric plate, respectively; and a power generation part having an output electrode 5 polarized in the longitudinal direction, and located on an outer peripheral surface in the longitudinal direction. At least the input electrodes form a structure extended to the outer peripheral surface in the width direction of the oblong flat piezoelectric plate 2. COPYRIGHT: (C)2009,JPO&INPIT
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