4 ms·
You need to think of EMI as having a magnitude and a direction. Half the time you are adding a negative voltage.
by missinglugnut 2y ago
You need to think of EMI as having a magnitude and a direction. Half the time you are adding a negative voltage.
- echoangle 2y agoSince he’s using a Piezo lighter, shouldn’t it be just a single DC pulse like discharging a capacitor?
- missinglugnut 2y agoI was confused on the lighter type so I deleted that part of my response. I think you're correct but I can't say for sure.
- james_a_craig 2y agoEven your example of discharging a capacitor can end up with a pulse both directions, caused by the inductance of the wires. In this specific situation, there's no common reference level, and so the induced pulse will go both directions. You can think of this as being about the edges of the pulse being the parts that actually cause radio to be transmitted, and there's both a positive-going edge and a negative-going edge on a pulse.