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.

Date of Patent:
Jan. 23, 2018

Filed:

Nov. 02, 2016
Applicant:

Fraunhofer-gesellschaft Zur Förderung Der Angewandten Forschung E.v., Munich, DE;

Inventors:

Rainer Labitzke, Dresden, DE;

Severin Dominok, Dresden, DE;

Gösta Mattausch, Ullersdorf, DE;

Stefan Weiss, Dresden, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 29/98 (2006.01);
U.S. Cl.
CPC ...
H01J 29/98 (2013.01);
Abstract

An apparatus for suppression of arcs in an electron beam generator including: a first module providing an operating voltage; a second module including a coil suitable for a voltage of at least 10 kV, and at least one free-wheeling diode connected in parallel to the coil; a third module including a first circuit component configured to detect a first actual value for electric voltage, and a first signal is producible when the first actual value falls below a first threshold value, a second circuit component by which a second actual value for electric current is detectable, and a second signal is generated when the second actual value exceeds a second threshold value, a control logic, which optionally links the first and second signals and a resultant output signal is producible; a semiconductor-based switch suitable for the voltage of at least 10 kV, which is opened based on the output signal.


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