Koninklijke Philips Corporation N.V.

Ulrich B&ouml;ke

Hubert C Raets

Pawel M Gradzki

Johannes A A Wijntjes

A circuit arrangement for supplying a lamp with a DC lamp current and comprising only passive components and equipped with mains input terminals for connection to the poles of an AC supply voltage source. A rectifying apparatus has two input terminals coupled to the mains input terminals and two output terminals for generating a DC voltage from the low frequency AC supply voltage. A ballast capacitor is coupled between the mains input terminals and the output terminals of the rectifying apparatus. A load circuit is coupled to the output terminals of the rectifying apparatus and has terminals for connection to the lamp. The load circuit includes a series arrangement of only passive components which connect the output terminals of the rectifying apparatus and comprise an inductor and the terminals for connection to the lamp. The circuit arrangement is simple and inexpensive and is very suitable for operating a discharge lamp and for incorporation into a compact lamp.

Growing community of inventors

Geilenkirchen, Germany

Ulrich Böke

Growing community of inventors

Geilenkirchen, Germany

Ulrich B&ouml;ke

Ulrich Böke