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By batch no:8

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Clap switch means!! Clap switch is switch which can switch on/off any

electrical circuit by the sound of the clap

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Principle.

Converts the sound signal into electrical

energy

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Basic Idea on clap switch is Basic idea on clap switch is that the electric

microphone pick up the sound of your claps, coughs,or any sound to switch ON/OFF the circuit

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Components are.. 1.Resistors

2.capacitors

3.Battery

4.Transistor

5.Relay

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Circuit diagram

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Block diagram

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Working

Audio amplifierSound signal is received by AUDIO AMPLIFIER .

Here the given sound signal is converted into

electrical signal and then amplified by usingtransistors.

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Flip flop circuit

It consists of two transistors, one for the onposition and the other for the off position.

For this reason it is also known as bi-stable multivibrator.

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Circuit amplifier

The outcome of this circuit is Electrical signal.

This electrical signal is very weak so we have use

another transistor in this circuit.

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ADVANTAGES

1. The primary application involves an elderly ormobility-impaired person.

2. We can turn something (e.g. a lamp) on and off fromany location in the room (e.g.

while lying in the bed) simply by clapping our hands.

3. Low cost and reliable circuit.

4. Complete elimination of man power.5. Energy efficient.

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DISADVATAGES

1. It is generally cumbersome to have to clap ones handsto turn something on or off

and it is greatly seen as simpler for most use cases touse a traditional light switch.

2. Unless we use a filter in the circuit , it is not thatadvantageous. So that circuit

activates only for clap of particular frequencies andthen it becomes accurate.

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