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. 19, 2016
Filed:
Jul. 12, 2011
Kjell Lidstrom, Burea, SE;
Kjell Lidstrom, Burea, SE;
Ceravision Limited, Milton Keynes, GB;
Abstract
To the common point (C) of two transistors of a magnetron, switched converter power circuit is connected a coupling capacitor which provides input to a starter circuit. A transistor switch id in series with a capacitor and a diode. When the switch is off no current flows in (D). When the switch is made, (D) conducts during alternate halves of cycles present a (C). A second diode also conducts and allows current to pass through discharge capacitor. This progressively charges until the voltage across it reaches the breakdown voltage of a gas discharge tube (GTD). Whereupon the capacitor discharges through the primary winding of transformer (TR). The second winding has many more turns and a started voltage is induced in the starter electrode. This is isolated from the Faraday cage and terminates adjacent to the crucible, close to the void.