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:
Jun. 20, 2006
Filed:
Dec. 23, 2002
Heinz Van Der Broeck, Zülpich, DE;
Matthias Wendt, Würselen, DE;
Hans Steinbusch, Landgraaf, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method of controlling a circuit arrangement for an AC voltage supply of a plasma display panel, the circuit arrangement comprising at least a transistor bridge constituted by the bridge transistors (T, T, T, T), an input voltage (U), a capacitor (Cp) of the plasma cell and a charging circuit comprising an auxiliary voltage (Uh), a first auxiliary transistor (T) and a first coil (L) and at the beginning of the charging operation the first auxiliary transistor (T) is turned on, characterized in that once the first auxiliary transistor (T) has been turned on, the second bridge transistor (T) of the half bridge continues to be turned on for a delay time tv and is turned off after the delay time tv has elapsed.