Power supply for lamps

Details Power supply for lamps Power supply for lamps

G - Physics

05

F

G05F 1/66 (2006.01) G05F 1/10 (2006.01) H05B 37/00 (2006.01) H05B 41/288 (2006.01) H05B 41/292 (2006.01) H05B 41/392 (2006.01)

Patent

CA 2334418

The invention relates to a power supply for an illumination system used to expose photo-initiated adhesives. The illumination system includes an arc lamp to provide light. As the lamp ages, its electrodes deteriorate, reducing the amount of light directed into a light guide and ultimately onto the adhesive. The power supply provides an increasing power input to the lamp to increase the light output of the lamp, countering this deterioration at least in part. The voltage and current drawn by the lamp are measured and a skewed control signal which magnifies the level is used to control the power input to the lamp.

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