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:
Oct. 23, 2018
Filed:
Sep. 06, 2015
Philips Lighting Holding B.v., Eindhoven, NL;
Sanbao Zheng, Eindhoven, NL;
Bernhard Christiaan Van Dijk, Eindhoven, NL;
Zhihua Song, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
An apparatus (A,B,C,D,A,B,) supplies power to an output thereof. The apparatus includes: an isolation transformer () and a rectifier (). The isolation transformer has a parasitic capacitance (Cp) between one of its input terminals (S/F) and one of its output terminals (S/F). The rectifier has a pair of input terminals connected to the output terminals of the isolation transformer, and a pair of output terminals connected across the apparatus' output. The rectifier includes a plurality of diodes (D/D/D/D) connected in a bridge. The apparatus also includes a compensation device for compensating for an increase in an output voltage across the output of the apparatus due to a charge pump effect of the parasitic capacitance. The compensation device includes at least one compensation capacitor () connected across one of the diodes of the bridge.