Supplying device for a luminescent tube

Abstract

Abstract Supply device for a luminescent tube comprising a chopping oscillator and means of regulating the current in the said tube. According to the invention, the primary winding (13a) of the transformer (13) supplying the luminescent tube (14) is supplied via a chopping oscillator (11) and regulating means (16) are inserted between a reference winding (13c) of the transformer (13) and a saturation winding (12d) of the transformer (12) of the oscillator (11) in such a way as to regulate the current in the luminescent tube (14) by varying the frequency of oscillation of the chopping oscillator (11). The same device may be suitable for luminescent tubes of differing lengths. <IMAGE>

Inventors

• 👤 Roger Schneider
• 👤 Alain Perchat

Bibliographic Details