Low ripple regulated X-ray tube power supply filament transformer

Claim 1

In an X-ray tubehead having a filament transformer associated therewith, said tubehead supplied by a low ripple, high voltage power supply adapted to receive an unregulated input and to deliver a regulated output adapted to supply power to a load connected across the output of said supply, said power supply comprising (a) a regulator circuit providing regulation under control of a control signal imputted thereto; (b) control signal generating means for generating said control signal and inputting same to said regulator circuit; (c) means for developing a signal representative of said unregulated input and connecting said unregulated input signal to said control signal generating means; (d) means for developing a signal representative of said regulated output and connecting same to said control signal generating means; and (e) said control signal generating means having means responsive to both of said representative signals for generating said control signal as a function to both of said representative signals, in combination therewith, the improvement to said filament transformer for providing minimal high voltage stress areas and negligible high voltage breakdown, said filament transformer comprising a coaxial structure having a single turn secondary.