Basic flashlamp illumination circuitry for cellular telephones/cameras
Jim Williams
Abstract
A basic flashlamp illumination circuit for cellular telephones/cameras is described.
Keywords
Flashlamp
flash illumination
camera
LT3468-1
Introduction
Next generation cellular telephones will include high quality photographic capability. Flashlamp-based lighting is crucial for good photographic performance. A previous full-length Linear Technology publication detailed flash illumination issues and presented flash circuitry equipped with “red-eye” reduction capability.1,2 Some applications do not require this feature; deleting it results in an extremely simple and compact flashlamp solution.
Flashlamp circuitry
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