How to make an AC voltage detector using the transistor BC547

#transitorBC547 #acvoltagedetector
Here is the simple circuit to detect the AC voltage supply using the transistor BC547.
Components Required: (Affiliate Links)
1. BC547-3 ►amzn.to/3ykB6ke
2. Resistors-1 MΩ, 100KΩ, 220Ω ►amzn.to/3bwHcny
►amzn.to/33OAgxV
►amzn.to/3ophPJS
3. LED ►amzn.to/33SuTOl
4. Buzzer ►amzn.to/2QpLqpV
5. Battery & Clip►amzn.to/3waSRjR
Disclaimer: The above links are affiliate links. That means if you make purchases through those links, we may earn a small commission (at no extra cost to you). Thank you for your support
Circuit & Explanation:
www.bluedotelectronics.com/?p...
Time stamps:
Components Required: 00:32
Working Explanation: 01:14
Circuit making: 01:58
Output: 06:06
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Music credit:unison aperture by NCS
Thanks for watching

[@diliprajp8729]

Thank you for this video.Its very helpful for me.

[@flippysouvik9519]

Thanks for using application of ttl logic.

[@MrNoOne-in4np]

Bahut badiya. Keep going

[@BlueDotElectronics]

Thanks.

[@juanjoseperalta5188]

HOLA EL BUZEER ES ACTIVO
O PIEZOELECTRICO MUY BUENO Y PRACTICO EL VIDEO SALUDOS DE JUAN JOSE DE ARGENTINA

[@soumensamui1865]

why the 1M,100K,22Ohm resistor are used ??pls tell ...very urgent

[@girumg9885]

What if the ac source is a three phase system with a voltage of 400 volts could it also work?

[@lucianoguedes4309]

Qual valor mínimo de tensão que o circuito consegue detectar?

[@aravinthans5363]

Using 12volt

[@23vijayragav82]

Can we detect dc conductor voltage by using this

[@gamians9562]

Why are you using different ohm resistor with each transistor ??

[@benedictadika5559]

How does a block diagram looks like

[@VISHALJURKEC]

Will it work if we connect through a bread board??

[@BlueDotElectronics]

yes, it will work.

[@sahil_09u]

Check kispe kare

[@may_ur9595]

Is it applicable on AC?

[@BlueDotElectronics]

It is designed to detect AC supply

[@kotthalavijaya5680]

Why use three transistors

[@abhinabachoudhury5843]

Why are we using transistors? Could you please elaborate? Actually I am a beginner that's why I am asking. 😬 and also I want to know, are those transistors NPN or PNP

[@BlueDotElectronics]

We use transistor to amplify the signal or as a switch. To simply about the transistor, it has three pins namely collector, base & emitter. As soon as we give base current of min. 0.6 v, the curent will start flow from collector to emitter.I have uploaded 5 videos on transistor, please do watch . NPN and PNP are the types of transistor , used according to the circuit requirments.

[@abhinabachoudhury5843]

@@BlueDotElectronics thanks for the information. What you've used for this voltage detector NPN or PNP?

[@BlueDotElectronics]

NPN

[@abhinabachoudhury5843]

@@BlueDotElectronics I have made it. One thing I wanna know whenever I place finger on the antenna it beeps. Is it correct or something wrong in the circuit?

[@309electronics5]

Its correct cause the antenna is sensitive enough to touch