Robust driver for high intensity discharge lamp

Details Robust driver for high intensity discharge lamp Robust driver for high intensity discharge lamp

2011-03-22

2011-03-22

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S307000

Reexamination Certificate

active

07911159

ABSTRACT:
A circuit arrangement and a method for operating a high intensity discharge lamp driver, which assure long-lasting stable operation of a high intensity discharge lamp regardless of the type or the age of the lamp. This is achieved by the determination of a correctional setpoint signal for a given time period based on the a difference signal between a principal setpoint signal and the actual output current signal for a given time period. The principal setpoint signal is then adjusted by the determined correctional setpoint signal.

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