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Alga, I have a limited knowledge of electronics, but I've bought a mini pro. It has a 12v raw connection for power which cuts out some of the electronics. I have resistors but need to purchase the diode what wattage 4.7v diode should I use? 1w or 0.5w? Thanks Chris
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12 V raw, yes, but a charged battery gives around 13 V, and the alternator gives some 14 V, plus there can be some noise spikes even higher. I'd rather not risk burning the chip, so I added a stabilizer circuit. As for the diode, I used the smallest one, it's 0.5 W I believe. With the 1K resistor on the input and assuming 12V signal, the current through the Zener will be 12 mA maximum.
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Out of interest,what is the output from coil to shift light.
Ie pulse or just varying voltage. |
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