That's basically the plan; I'm mostly trying to spec out chips to build the DC-DC converter around, and while there are super wide-range automotive-qualified chips out there the more I know the less chance something pops when I plug everything in.
Here's the thing; I'd like to try to use small lithium-ion batteries for this; they weigh a ton less and are significantly smaller. The caveat is that if they're mishandled they tend to smoke and occasionally catch fire; the idea is to take the unregulated DC out of a full-wave rectifier with a capacitor on it, use a switching converter to get exactly the voltage the battery wants t
Quick question, does anyone know what the peak voltage at max RPM on the lighting circuits for an A55 Tomos is? I'm interested because I'm looking to design a little box that can take in rectified and buffered AC and output DC to charge a lithium-ion battery and run lights. The basic idea is depicted below; use the ignition coil to drive a switching converter to get me a regulated 12V w