Piezoelectric transformer and strobe apparatus having the piezoelectric transformer

摘要

Of a plurality of surfaces forming its shape, a piezoelectric transformer 13 A has two types of output electrodes 22 and 23 on one surface in the longitudinal direction and two opposing surfaces in the lateral direction. This piezoelectric transformer 13 A can be driven by properly switching first and second resonance modes different from each other. In a strobe apparatus, a discharge capacitor 3 is charged by a voltage generated in the output voltage 23 when the piezoelectric transformer 13 A is driven in the first resonance mode, and a discharge tube 4 is triggered by a voltage generated in the output electrode 22 when the piezoelectric transformer 13 A is driven in the second resonance mode.