Electronic ballast

Details Electronic ballast Electronic ballast

H - Electricity

05

B

H05B 41/16 (2006.01) H05B 41/232 (2006.01) H05B 41/282 (2006.01) H05B 41/392 (2006.01)

Patent

CA 2266024

An electronic ballast for a discharge lamp includes a capacitive storage device which is serially connected with an AC power source and the lamp. A first combination of switches, arranged in a bridge configuration, alternately reverse the polarity in which the capacitive storage device is connected. A second combination of switches periodically bypasses the capacitive storage device and momentarily places the AC power source directly in series with the lamp.

Ballast électronique pour une lampe à décharge, qui comporte un dispositif de stockage capacitif connecté en série à une source de courant alternatif et à la lampe. Une première combinaison de commutateurs, disposés en une configuration de pont, inverse alternativement la polarité dans laquelle le dispositif de stockage capacitif est connecté. Une seconde combinaison de commutateurs contourne périodiquement ledit dispositif de stockage capacitif et place momentanément la source de courant alternatif directement en série avec la lampe.

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