The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 13, 1984
Filed:
Nov. 10, 1982
Hideki Sato, Ootawara, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
An X-ray radiation control apparatus comprises an X-ray tube, tetrodes each connected between the anode and the cathode of the X-ray tube, and tetrode controlling circuits connected thereto. Each of the tetrode controlling circuits controls the anode voltage drop of the respective tetrode for stabilizing a high-tension DC voltage to be applied to the X-ray tube as well as removing ripple components therefrom. Each tetrode controlling circuit is constituted by a first high-voltage transistor for producing a first grid bias controlling voltage for stabilizing the high-tension DC voltage and a second high frequency transistor for producing a second grid bias controlling voltage for absorbing the ripple components contained in the high-tension DC voltage.