Patent ID: 8085561

Claim:
A high voltage power supply comprising: an AC power source to provide an AC output of desired voltage; a voltage multiplier circuit comprising: an outside set of capacitors connected electrically in parallel having an outside conductive hollow tube with an inside diameter and forming an outside common capacitor electrode, a plurality of individual outside capacitor electrodes positioned within the hollow tube forming the outside common capacitor electrode, and outside dielectric material positioned between each individual outside capacitor electrode of the plurality of individual outside capacitor electrodes and the inside of the outside common electrode; an inside set of capacitors connected electrically in parallel having an inside conductive tube with an outside diameter less than the inside diameter of the conductive hollow tube and forming an inside common capacitor electrode, a plurality of individual inside capacitor electrodes positioned outside the conductive tube, and inside dielectric material positioned between each individual inside capacitor electrode of the plurality of individual inside capacitor electrodes and the outside of the inside common electrode, wherein the inside set of capacitors fits concentrically within the outside set of capacitors with space therebetween; a plurality of rectifiers positioned within the space therebetween, each rectifier connected between a selected outside individual capacitor electrode of the outside set of capacitors and a selected individual inside capacitor electrode of the inside set of capacitors to form a voltage multiplier circuit; and said voltage multiplier circuit being coupled to the AC output of the AC power source so as to provide a DC output voltage higher than the AC output voltage of the AC power source.