| 摘要 |
The invention relates to a power supply for an illumination system used to expose photo-initiated adhesives. The illumination system includes an arc la mp 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 powe r 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 curren t 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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