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automatic speed controller for fans&coolers
143com2me Offline
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23-02-2010, 12:30 PM

the device presented here makes the fan run at full speed for a predetermined time.speed is decreased to medium after sometime.after a period of 8 hours fan /cooler is switched off.
.
it consist of IC NE555,CD4017B, 6v 100ohm SPDT relays 4nos,BC548transistor 5nos,13 diodes.
we need a detailed working ,block diagram and pcb design to make a mini project report
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(23-02-2010, 12:30 PM)143com2me Wrote: the device presented here makes the fan run at full speed for a predetermined time.speed is decreased to medium after sometime.after a period of 8 hours fan /cooler is switched off.
.
it consist of IC NE555,CD4017B, 6v 100ohm SPDT relays 4nos,BC548transistor 5nos,13 diodes.
we need a detailed working ,block diagram and pcb design to make a mini project report
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automatic speed controller for fans&coolers - by 143com2me - 23-02-2010, 12:30 PM

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