PIEZOELECTRIC DIRECT CURRENT GENERATOR Russian patent published in 1998 - IPC

FIELD: power converters which use piezoelectric ceramics. SUBSTANCE: device has rotor which is driven by mechanical power and stator which carries at least one two-state piezoelectric elements. Ring deformation of piezoelectric element is achieved by means of rollers which are mounted on rotor. Direct piezoelectric effect at electrodes of piezoelectric element outputs direct voltage. EFFECT: design of low-power current sources. 4 cl, 2 dwg