Control of output voltage provided to a flash unit
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United States of America Patent
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Nov 9, 2010
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N/A
app pub date -
Oct 9, 2008
filing date -
Sep 5, 2008
priority date (Note) -
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Abstract
A device includes a flash unit to generate light, and an optical sensor to receive the light from the flash unit, and generate a light intensity signal based on the received light. The device also includes a controller to generate a modified error signal based on the light intensity signal. The device further includes a control circuit to receive the modified error signal from the controller, receive an output voltage from a power source associated with the device, control the output voltage based on the modified error signal, and provide the controlled output voltage to the flash unit.
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