The point of the snubber diode is to contain that back EMF to a closed loop containing the coil and diode. It's not shunting anything to ground. The field collapses and generates a high negative spike, dependent on field strength and the speed it collapses. The diode contains this to that mini circuit and the energy is dissipated as the circulating current and respective magnetic field decays. The rest of the circuit is thus protected from that spike.
Samuel, did you get the answer you were looking for?And sparky, why the rude comment? I was on your side.-oldfox-
Thank you, now go ask the "aeroplane designer" which planes he meddled with and make sure you don't fly on them
Quote from: sparkylabs on Mar 28, 2013, 09:35 pmThank you, now go ask the "aeroplane designer" which planes he meddled with and make sure you don't fly on them Cute... not gonna bite, though. Just wanted you to know I seen it. lolBTW, I should make it clear that I don't actually *disagree* with you. It just really makes no difference either way except in some imaginary chicken little land. I just found your little diatribe quite humorous, that's all. I had this delightful picture of you in a superhero outfit running around with an oscilloscope probe. It was very enjoyable. We'll just chalk you up as 'passionate.' I'd love to draw it up if you'd like it for your avatar.P.S. I really am an electrical engineer for an aerospace company. I suppose that is less funny given the current issues with batteries catching fire (not my product, btw.) Hmm, I wonder if they put the diode across the transistor.You will be happy to know that I am not in charge of designing anything that would require a snubber diode. I deal with almost exclusively embedded and digital design (and some audio stuff.) The guys in the floods, taped up glasses, and nasaly voices design the power supplies and actuator controls. So, not a programmer. In fact, I suck at programming aside from sucking at flyback diodes, apparently. And the programmers probably think I suck at digital and embedded design and I think the programmers suck at programming my hardware. Oh, my...Seriously, Sparky... no harm was intended. Just having a bit of fun.(Ok, I guess I nibbled, didn't I?)
your sure welcome to draw me in said fashion and we'll see what you think i look like