Cycle timing controller 2

Published:2011/8/8 3:43:00 Author:Ecco | Keyword: Cycle timing controller | From:SeekIC

The cycle timing control circuit is composed of the power supply circuit and timing control circuit, and it is shown in Figure 3-90. Power supply circuit is composed of the fuse FU, power transformer T, bridge rectifier UR, filter capacitor C3, three-terminal voltage regulator integrated circuit IC2, current limiting resistor Rl and the power indicator LED VLl. Timing control circuit is composed of the time-base integrated circuit ICl, relay K, potentiometers RPl, RP2, resistor R2, capacitors Cl, C2, working indicating LED VL2 and diode VD. Rl and R2 use the 1/4W carbon film resistors or metal film resistors. RPl and RP2 use the small solid potentiometers or variable resistors.



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