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:
Feb. 24, 2004
Filed:
Jun. 12, 2002
Tobias Georg Tolle, Aachen, DE;
Thomas Duerbaum, Langerwehe, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
In a voltage converter including a half bridge in the form of controlled semiconductor switches, a transformer and a rectifier circuit, in which a primary winding of the transformer connected in series with at least one capacitor is connected to the half bridge, the at least one capacitor is arranged such that the resonant frequency of the series combination of the at least one capacitor and an inductance which inductance is active when the rectifier circuit is in operation, is larger than half the pulse frequency with which the semiconductor switches are controlled. Similar measures can also be carried out with a voltage converter with a direct coupling, in which a longitudinal coil and a transverse coil then substitute for the transformer.