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:
Feb. 09, 1982
Filed:
May. 07, 1980
Applicant:
Inventors:
Karl-Georg Redel, Rodenbach, DE;
Gerd Deppisch, Aschaffenburg, DE;
Assignee:
Leybold Heraeus GmbH, Rodgau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H02H / ;
U.S. Cl.
CPC ...
315107 ; 315127 ; 315205 ; 315243 ; 315340 ; 328-8 ;
Abstract
A high-voltage power supply for an electron-beam gun with a heatable cathode and an anode and of the type having an electronic switch connected in the current circuit for the cathode and controllable for blocking the current to the cathode, includes an impulse protecting filter connected in the current circuit for the cathode. The filter comprises a capacitor connected in parallel to the cathode, a choke connected in series with the cathode current circuit, a blocking diode and a discharge resistor connected in series therewith, with the diode and resistor connected in parallel with the choke.