Multi-function timer controller 1

Published:2011/8/8 21:27:00 Author:Ecco | Keyword: Multi-function timer controller | From:SeekIC

The multi-function timing controller circuit is composed of the power supply circuit, clock signal generator, counting distributor, RS flip-flop and switch output circuit, and it is shown in Figure 3-94. Power supply circuit consists of the power transformer T, rectifier diodes VD3-VD6, filter capacitors Cl, C5, current limiting resistor R5 and Zener diode VS. Clock signal generator consists of the electronic watch, diode VDl, capacitor C2 and counter / divider integrated circuit lCl. Count divider circuit consists of the counter / divider integrated circuit IC2, resistors Rl, R2, timer selection switches Sl, S2 and reset button S4.



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