MY friend would like me to help him build a cheap electric fence. I found l ots of designs, and of course we could go solid state but the simplicity of this one really intrigues me. I showed him the schematic and he questioned if the repeated opening and cl osing of the flasher points used in this application would quickly burn the m out. I was thinking that in spite of the inductive component, the load of the coil would be much less than the load imposed by a lighting circuit. S o I thought that combined with the correct capacitor and perhaps the additi on of a small snubber circuit (a small resistor in series with the capacito r) would cut down on the sparking. Perhaps I'm way off base here. Does any one have any opinions on this or has anyone ever done this? This uses a sta ndard automotive ignition coil. Thanks, Lenny
- posted
9 years ago