EP 0149337 A3 19860604 - X-RAY GENERATING APPARATUS AND METHOD OF OPERATING AN X-RAY TUBE
Title (en)
X-RAY GENERATING APPARATUS AND METHOD OF OPERATING AN X-RAY TUBE
Publication
Application
Priority
US 57088884 A 19840116
Abstract (en)
[origin: EP0149337A2] An X-ray generating apparatus with a filament energizing transformer (120, 121: 184) mounted inside the X-ray tube housing (11) while a high voltage generating transformer (112) remains outside that housing (11). This arrangement allows a single high magnitude negative polarity input (114) to be routed through the tube housing (11) and coupled to the tube cathode (24). In one embodiment of the invention two cathode filaments (54, 56) are each energized when in use by an associated one of two filament transformers (120, 121) inside the housing (11). Selective energization of one or the other transformers determines which filament is to be energized. In an alternate embodiment a frequency sensing electronic switch (188) chooses which filament (54, 56) to energize depending on the energization frequency input to a single filament transformer (184). A method of operating an X-ray tube is also provided.
IPC 1-7
IPC 8 full level
H05G 1/04 (2006.01); H05G 1/06 (2006.01); H05G 1/10 (2006.01); H05G 1/52 (2006.01)
CPC (source: EP)
H05G 1/06 (2013.01); H05G 1/10 (2013.01); H05G 1/52 (2013.01)
Citation (search report)
- [Y] EP 0063183 A1 19821027 - PENNWALT CORP [US]
- [Y] US 4315154 A 19820209 - WEIGL WALTER, et al
- [A] US 4065689 A 19771227 - PLEIL VIKTOR W
- [A] US 3103591 A 19630910
- [A] FR 2474804 A1 19810731 - SIEMENS AG [DE]
- [A] US 3110810 A 19631112 - JACOBUS FRANSEN
- [AD] US 4109151 A 19780822 - PLEIL VIKTOR W
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0149337 A2 19850724; EP 0149337 A3 19860604; CA 1261974 A 19890926; JP S60163399 A 19850826
DOCDB simple family (application)
EP 84308697 A 19841219; CA 471750 A 19850109; JP 480085 A 19850114