Comparison between Piezoelectric Filter and Passive LC Filter in a Class L?Piezo Inverter

This paper presents a comparison between piezoelectric filtering and passive LC integrated into an HF class L?Piezo inverter. inverter is variant of ?2 where the second harmonic carried out by resonator. Piezoelectric filters are well known in signal domain (RF filtering), but their use field power electronics, as temporary energy storage element, rather recent. In piezoelectricity has mainly been used transformer, particular, to greatly increase voltages (backlight applications). A with Lithium Niobate (LNO) resonator designed for switching frequency 10.4 MHz, input voltage 30 V, output 15 W. To compare these two methods, prototypes built, one filtering. Measurements show reduction 60% losses filter, while volume filter reduced factor 50.