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:
Apr. 20, 2004
Filed:
Feb. 19, 2002
Alvin B. See, Westfield, MA (US);
Fred M. Stefanik, Feeding Hills, MA (US);
Thales Broadcast & Multimedia, Inc., Southwick, MA (US);
Abstract
Control and filter circuits for linear power supplies, employing resistance to limit the release of stored energy and simultaneously removing the input mains AC, so as to protect a load device from damage when a high voltage fault occurs. The circuits may be used particularly in output filters for high voltage power supplies for high power transmitting tubes, such as Inductive Output Tubes used in UHF television transmitters, which must be protected from internal arcing by a controlled release of stored energy and a rapid disconnection of input power. The use of the filter circuit combined with rapid solid state switching ensures that the load is not subject to an excessive surge when a high voltage fault occurs.