Title: Circuit arrangement for supervising the loading of an X-ray tube

Abstract: The invention relates to a circuit arrangement useful in an X-ray diagnostic apparatus for supervising the loading of an X-ray tube. A first signal which is dependent on the anode temperature controls an indication and/or a blocking device. A second signal is formed which corresponds to the maximum temperature (T.sub.max) minus a value (.DELTA. T) which is dependent on the exposure load to be expected. The two signals are compared with each other and the indication or blocking device is released if the temperature (T.sub.i) represented by the first signal is lower than the temperature (T.sub.max -.DELTA. T) represented by the second signal.

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Inventors: Stege, Peter (Hamburg, DT)
Hermeyer, Bernd (Henstedt-Ulzburg, DT)

Application Number: 546394
Filing Date: 1975-02-03
Publication_date: 1977-06-28
Assignee: U.S. Philips Corporation (New York, NY)
Primary Class(es): 378/98 378/118
Other Classes:
US Patent Ref:

2054493	Sep, 1936	Bouwers et al.	250/401.
2129383	Sep, 1938	Ulrey	250/401.
2608662	Aug, 1952	Massiot	250/416.
3538331	Oct, 1970	Craig	250/416.

Other Refs:
Primary Examiner: Church, Craig E.
Assistant Examiner:
Attorney: Trifari; Frank R., Franzblau; Bernard