.. it is used to attach a heatsink) is connected to the Pin-2. It means you should never touch the heatsink or screw it to a metal enclosure! R4, R5, and C2 implement a snubber circuit [1] for the IC2 and C1 and R7 make a snubber circuit [ 1 ...
.. points (the points where the wave changes its polarity) are important. To grab these points, we have to use a zero crossing detector. The Figure 2 demonstrates the schematic diagram of the whole circuit. Figure 2. Schematic diagram of the ...