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:
Jan. 22, 2002
Filed:
Mar. 31, 2000
John W. Gerstenberg, Lake Elsinore, CA (US);
Hung P. Van, Fullerton, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
Switching apparatus for switching on and off one or more microwave tubes. A preferred embodiment of the switching apparatus comprises a solid state magnetron switcher that switches a plurality of magnetrons on and off using a plurality of high voltage (IGBT) switches. The microwave tubes or magnetrons are driven from a single power supply. The technical approach employed in the present invention places all microwave tubes or magnetrons into low level oscillation prior to switching them into full conduction. This maintains minimal voltage across the high voltage switches while allowing only a small percentage (1-2%) of full load current to be drawn.