SECONDARY POWER SUPPLY SOURCE Russian patent published in 1995 - IPC

FIELD: radio engineering. SUBSTANCE: secondary power supply source has unit 1 generating electric signal of conversion frequency, piezoelectric disc transformer 2 and rectifier 3 connected in series. Electrodes of input section 5 of transformer are applied in center of both flat surfaces of piezodisc 4 in the form of circle with radius equal to 0.34 radius of disc and electrodes of output section 6 are applied on same surfaces of disc 4 in region limited by radii equal to 0.5 and 0.97 radius of disc. Disc 4 of piezotransformer 2 is anchored mechanically in central point where electric connection of generating unit 1 and electrodes of input section 5 is accomplished and in points away from center by 0.7 radius of disc where electric connection of electrodes of section 6 and rectifier 4 is carried out. EFFECT: enhanced operational stability, facilitated manufacture. 4 dwg