Rapid start fluorescent lamp circuits with disconnect sockets

Details Rapid start fluorescent lamp circuits with disconnect sockets Rapid start fluorescent lamp circuits with disconnect sockets

H - Electricity

05

B

315/39

H05B 41/16 (2006.01)

Patent

CA 1224521

ABSTRACT A circuit is provided for energizing a pair of rapid-start fluorescent lamps from a low voltage a.c. source in which the lamps are ignited in sequence and operated in series utilizing a substantially conventional two-lamp rapid start fluorescent lamp ballast having a primary winding and a secondary winding in autotransformer connection. The circuit includes a disconnect socket and a conventional two contact socket for mounting each lamp. In one embodiment, one disconnect socket of the circuit is arranged to open a connection to a filament winding and the other disconnect socket is arranged to open one of the connections to the line. The disconnect sockets in another circuit embodiment are arranged to open the connections between the filament windings and a filament of each lamp. The disconnect sockets in a third circuit embodiment are arranged to open one of the connections to the line and to open a connection from the secondary winding to the end of the second lamp.

461214

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