Electronic ballast with reactive current oscillation reduction

Details Electronic ballast with reactive current oscillation reduction Electronic ballast with reactive current oscillation reduction

H - Electricity

05

B

H05B 41/392 (2006.01)

Patent

CA 2605174

The invention relates to an electronic ballast presenting an input capacitor and comprising and step-up chopper for operating a load, for example a discharge lamp, on a phase control dimmer having an integrated or parasite inductance. In such a way, the voltage overshooting on the input capacitor are reduced by active charge or discharge thereof.

L'invention concerne un ballast électronique présentant un condensateur d'entrée et comprenant un hacheur élévateur pour le fonctionnement d'une charge, par exemple d'une lampe à décharge sur un gradateur à commande de phase présentant une inductance intégrée ou parasite. Ainsi, les dépassements de tension apparaissant aux bornes du condensateur d'entrée sont réduits par charge ou décharge active de ce condensateur.

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