PULSE MODULATING LASER DRIVER
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United States of America Patent
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Issued Date -
Aug 20, 2015
app pub date -
Aug 7, 2013
filing date -
Aug 13, 2012
priority date (Note) -
Abandoned
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Abstract
A pulse modulated illumination source including a light emitting device, and a power source with first and second output terminals for generating DC current, where the illumination source further includes a first controllable switching device and a first signal generator for generating a first electrical control signal for the first controllable switching device, the first controllable switching device being connected in parallel to the light emitting device, where the illumination source further includes a second controllable switching device and a second signal generator for generating a second electrical control signal for the second controllable switching device, the second controllable switching device being connected in series with the at least one light emitting device and the second control signal being out of phase with the first control signal such that the second controllable switching device opens and decouples the light emitting device from the power source when the first controllable switching device closes.
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