Patent · US Expired

High voltage supply circuit for an x-ray tube

US4641330A · kind A · utility

131Cited by

4References

5Claims

0Family size

Assignee

Heimann GmbH · DE

Inventors

Thomas Herwig · Eltville am Rhein, DE
Georg Geus · Wiesbaden, DE

Key dates

Filing date	Aug 7, 1985
Grant date	Feb 3, 1987
Priority date	—
Expiry date	Aug 7, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high voltage supply circuit for an x-ray tube includes a high voltage transformer having a primary side driven by voltage pulses generated by a drive circuit. The drive circuit includes sub-circuits for controlling the pulse repetition frequency, which is selected as equal to a parallel resonant frequency of a high voltage generator connected to the secondary side of the transformer, for the purpose of saving energy. The drive circuit also includes a sub-circuit for controlling the pulse duration, with the filament voltage in the x-ray tube being regulated by this pulse duration.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.