GENERATOR FOR PIEZOELECTRIC CONVERTER Russian patent published in 2013 - IPC H01L41/09 H02N2/06 B06B1/06 

FIELD: electricity.

SUBSTANCE: generator comprises two transformers (11A, 11B), every of which comprises a primary winding (L1) and a secondary winding (L2), and four switches (19A, 19B, 21 A, 21B), driven by a generator of supersonic frequency. Two (21 A, 21B) of four switches connect in turns the secondary winding of each transformer with a piezoelectric load (5). Two other switches (19A, 19B) connect in turns two primary windings with a source of supply (17). At the same time within the first half-cycle called a "positive half-cycle", the primary winding of one of the specified transformers is charged with energy, while the secondary winding of the other transformer releases power to a piezoelectric load. Within the second half-cycle called a "negative half-cycle" the secondary winding of one transformer releases power to a piezoelectric load, while the primary winding of the other transformer is charged with energy.

EFFECT: invention provides for power stability in a range of impedance variation.

6 cl, 3 dwg