Electronic lighting ballast

Details Electronic lighting ballast Electronic lighting ballast

2006-09-19

2006-09-19

Vu, David (Department: 2828)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S308000, C315S224000

Reexamination Certificate

active

07109668

ABSTRACT:
An electronics enclosure has a mains input and a lamp output. A power factor correction circuit is installed in the enclosure, to provide a DC output voltage. An inverter is also installed in the enclosure. Control electronics is also installed in the enclosure to control the inverter, and to receive a selection of lamp load type made manually by a user via a user interface on an outside face of the enclosure. The same lamp output can thus alternatively drive, for example, a high pressure sodium lamp and a metal halide lamp, as indicated by the selection. Other embodiments are also described and claimed.

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