Touch On-off Switching circuit - Simple Electronic Project

Introduction

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Diagram of Touch Switch Circuit Diagram

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Components Needed for this Project:

You can get the components from any of the sites below:

  1. BC547 Transistor [See Buy Click Amazon]
  2. 1k Ohm Resistor [See Buy Click Amazon]
  3. LED 5mm [See Buy Click Amazon]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

Related Basic Electronic Mini Project Circuit Diagram:

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Working Principle

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Frequently asked questions

What sensor is used for touch?

A touch sensor Switching is a type of device that captures and records physical touch or embrace on a device and object. It enables a device or object to detect touch or proximity. typically by a human user or operator System.

How does a transistor touch switch work?

A voltage or current applied to 1 pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output terminals) power can be higher than the controlling (input terminals) power, a transistor can amplify a signal.

Why is the BC547 transistor used in the touch sensor?

BC547 is an NPN bipolar junction transistor. A transistor stands for transfer of resistance and is commonly used to amplify current Flow. A small current at its base controls a larger current flow at collector & emitter terminals.

what is BC547 in the circuit?

The BC547 is a general-purpose BJT NPN transistor mostly used in electronics and educational electronics projects. Besides these uses it can also be used in commercial circuits Diagram.

How to use a transistor as a switch?

A BC547 transistor can be used as a solid-state switch. If the transistor is operated in the saturation region then it acts as a closed switch and when it is operated in the cut-off region then it behaves as an open switch.

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