AC Mains Detector Circuit

High-Quality PCB prototypes: www.pcbway.com
Have you ever felt the need of a circuit that can detect whether AC power is on or not? Well, here your wait ends. This simple circuit can detect AC power easily and safely and uses very less parts. Take a look at the video and see for yourself.
Pictures, Circuit Diagram and more: www.instructab...
Another circuit: www.electrosch...
Parts:
INDIA:
DB107 Rectifier - amzn.to/3wJPa6H
PC817 Opto-Coupler - amzn.to/3wK6jNx
150k 2W Resistor - www.electronic...
US:
DB107 - amzn.to/3MHOJAr
PC817 - amzn.to/3yTRzOY
150k 2W Resistor - amzn.to/3lysUYe
UK:
DB107 - amzn.to/3NuG44r
PC817 - amzn.to/3PCBiny
150k 2W Resistor - amzn.to/3PvRFC6

[@paulpixzy5297]

Please what the name of the bridge retifier i want to chek 5he datasheet

[@ultrafilipsz.5827]

great video, love what you're doing. Thanks to you I find a good explanation of mains sensing principles. Farewell !

[@David-ff1sn]

There is a fundamental error in this video, particularly the calculation at 1:38 into the video. The calculation for I=203/150K is written as 1.5mA This should be 1.53333 and explains why when the calculation is reversed as Vr = 150K * 1.5ma it gives a value of 225V. The rounding error off the end of the initial calculation is why you get a value of 5V difference and not because of any electrical issue. At that point, I'm afraid, the whole maths demonstration is worthless. Sorry to sound critical but it is important to be accurate.