Timing Controller (the 5th)

Published:2011/7/7 22:33:00 Author:Felicity | Keyword: Timing Controller | From:SeekIC

Work of the circuit The circuit consists of power regulator circuit, timing time circuit, delay circuit and Schmitt trigger control circuit. (It is showed in picture 8-94.) Power regulator circuit consists of start button SI, power transformer T, bridge rectifier, UR, filter capacitors Cl and three-terminal voltage regulator integrated circuit ICl. Timing time circuit consists of selector switch S2 and resistors Rl-R7. Delay circuit consists of capacitors C2, C3, resistors R9, RlO, the normally closed contact relay K K3, K4 and non-gate integrated circuits IC2 (D1-D4). Schmitt trigger control circuit consists of transistor Vl, V2, resistors RI-R16 and diode VD.



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