PULSED_LED

Published:2009/7/1 22:42:00 Author:May | From:SeekIC

Circuit can generate peak currents above 1 A with pulse widths greater than 10 ms at repetition rates of 12 kHz with efficiency better than 90%, for 100-mA current drain from 2.5-V battery. Rise time of pulses is 0.2 ms. Can be used in low-light-level TV systems where high peak radiation gives better resolving power than constant illumination having same average power. Also useful for LED pilot lamps in battery-operated equipment and as lowpower strobe for studying mechanical motions.-J. Dimitrios, Current-Pulse Generator for LED's, EDN/EEE Magazine, July 1, 1971, P 51.



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