speed control of ceiling fan using

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K.anusha (09BA1A0203)

K.pavan kumar reddy (09BA1A0214)

B.ranjith kumar (09BA1A0221)V.ravi teja (09BA1A0223)

Under The Guidance Of

Miss.G.Sirisha mam


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Methods for controlling Ceiling fan

1.Capacitor-stepped2. Transformer-based controls

3. Solid State speed

4. Pull chain5. Remote control


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control is very easy.

remote which we use for a TV is

sufficient


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AT

8

9

S

52


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Transformer

Bridge Rectifier

Capacitor Filter

voltage Regulator


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Step-down voltage

from 230V AC to 9VAC


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diodes Voltageregulator

Electrolytecapacitor

Ceramic

capacitor

resistor

LED


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Atmel AT89S52 Microcontroller

TSOP

MOC3021 (Opto isolators or TRIAC driver)

TRIAC BT136-600D


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TSOPIR TRANSMITTER

Opto isolatorOr

TRIAC driver


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Capacitor Start AC Induction Motor


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Permanent Split CapacitorAC induction motor


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speed of fan can be controlled in various

levels

Our normal T.V. remote can be used for this

purpose

Remote operating distance up to 30 ft / 10

mts.


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Provision for switching ON/OFF Fan instantly.

Spark less switching increases switches life.

Prevents us from risk of electrical shock and

short circuit


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This project can also be extended to domestic

and industrial purposes as home appliances

controlling using IR.


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Principles of Electronics By V.K. MEHTA

www.nataionalsemiconductors.com

www.atmel.com


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speed control of ceiling fan using

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