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555 Automatic Speed Controller for fans

2015-02-04 07:33  
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1 555 Automatic Speed Controller for fans

Function: in predetermined time the fan run at full speed . after some time the speed is decreased to be medium, and to slow later on. After a period of about eight hours, the fan/cooler is switched off. Component: Diode, Resistor, Relay, Battery, Transistor, Capacitor, NE555 IC1, CD4017B IC2 & IC3.[electronic-circuits-diagrams.com]

Tags: Battery, Capacitor, circuit diagram, control circuit, control diagram, control schematic, Diode, electronic circuit, electronic control, NE555 IC, Relay, Resistor, schematic diagram, Transistor

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