UA82666U - Piezoelectric transformer - Google Patents

Abstract

A piezoelectric transformer comprises a piezoelectric cell with three systems of electrodes, an electric oscillation source, an electric load, an inductance coil and a capacitor. The second coil and second capacitor are introduced to the piezoelectric transformer, the first inductance coil which is connected to the electric oscillation source and a first electrode of first electrode system, which is also connected to the first capacitor, forms an oscillating circuit; the second inductance coil connected to the electric oscillation source and first electrode of the second electrode system, which is also connected to the second capacitor, forms a second oscillating circuit. First electrode of a third electrode system is connected to the electric load, the other electrodes of electric oscillation source, piezoelectric cells, capacitors and electric load are connected to the common conductor, the inductance magnitude and capacitance of capacitors of coils are selected so that resonant frequency of the second oscillatory circuit will be more or less than resonant frequency of the first oscillatory contour.