LOW_OUTPUT_FOR_POWER_ON

Published:2009/7/1 20:28:00 Author:May | From:SeekIC

Logic signal controls both turn-on and turnoff of 555 timer used as oscillator. When input signal at cathode of CR2 goes low, oscillator remains off and out-put at pin 3 is low. When input goes high, os-cillator starts with its first state low so there are no initial pulse errors.-K. D. Dighe, Rearranged Components Cut 555's Initial-Pulse Errors, EDN Magazine, Jan. 5, 1978, p 82 and 84



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