GENERATOR FOR POWER SUPPLY OF DENTAL POLYMERISING LAMP Russian patent published in 2015 - IPC H05B33/08 

FIELD: electricity.

SUBSTANCE: generator for piezoelectric engine is also fit for power supply of high-power LED of dental polymerising lamp through rectifier; the generator comprises two transformers (11A, 11B), each of them consisting of two primary winding (L1) and secondary winding (L2), and four switches (19A, 19B, 21A, 21B) controlled by ultrasound reference generator, at that two switches (21A, 21B) are mounted to connect in sequence secondary windings of two transformers with piezoelectric load (5), while the other two switches (19A, 19B) are mounted to connect in sequence primary windings with voltage source (17) so that during positive oscillation primary winding of one of the transformers is charged with energy while secondary winding of the other transformer is discharged to the piezoelectric load (5), and during negative oscillation secondary winding of the first transformer discharges its energy while primary winding of the first transformer is charged.

EFFECT: low dependency of power on load resistance and potential power supply for dental polymerising lamp without circuit for undervoltage between the generator and lamp.

8 cl, 6 dwg