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.
It’s probably a good idea on something like this to add a resettable fuse on AC side as protection
great video, love what you're doing. Thanks to you I find a good explanation of mains sensing principles. Farewell !
Please what the name of the bridge retifier i want to chek 5he datasheet
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.