Ballast circuit with independent lamp control

Details Ballast circuit with independent lamp control Ballast circuit with independent lamp control

1998-10-16

2000-10-24

Wong, Don

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

315161, 315291, 315307, H05B 3702

Patent

active

061372331

ABSTRACT:
A ballast circuit includes a rectifier for coupling to independent first and second AC input signals, a first inverter for energizing a first lamp and a second inverter for energizing a second lamp. A boost converter can be coupled between the rectifier and the inverters. The first inverter is enabled when the first AC input signal is applied to the rectifier and the second inverter is enabled when the second AC input signal is present.

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