LED_DIMMER

Published:2009/7/1 23:49:00 Author:May | From:SeekIC

Intech/Function Modules A8402 is used in voltage-to-frequency mode to provide controllable dimming of LED display by varying frequency of blanking input to display driver. Display is pulsed on and off rapidly; the higher the duty cycle, the brighter the display.At highest input voltage the converter is forced out of linear region, making its mono remain on continuously for brightest display,-P. Pinter and D. Timm, Voltage-to-Frequency Converters-IC Versions Perform Accurate Data Conversion (and Much More) at Low Cost, EDN Magazine, Sept. 5, 1977, p 153-157.



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