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Ignitor circuit details needed.
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10-16-2009, 01:36 PM
Post: #3
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Thanks, but I beg to differ on slightly on that. A multimeter between the ignitor tacho output (IG-) and the coil negative terminal shows approx 1K of resistance. However, that does not necessarily mean simply a single resistor between thos terminals - it could be any form of transistor/diode/resistor network that's inside the ignitor. I believe that IG- is a 'cleaned up' version of the coil -ve. It's probably switching betwen 0 and IG+ colts i.e. a nice digital waveform with all the coil -ve spikes removed. I just need to know exactly what's inside the box to generate IG-! I'll put a scope on the IG- signal tomorrow and see what it looks like - with or without a tacho connected.
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| Messages In This Thread |
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Ignitor circuit details needed. - misterforager - 10-15-2009, 03:16 PM
[] - irishtwincam - 10-16-2009, 12:58 PM
[] - misterforager - 10-16-2009 01:36 PM
[] - misterforager - 10-19-2009, 07:01 PM
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