AC to DC Converter for electric vehicle

i have a moderate electronic circuit background

im building a electric vehicle from a 1974 VW beetle and i had a idea to help me drive further, i wanted to take a small 110v AC generator and convert the AC to DC and then regulate it to 98v, i need the circuit to handle at least 1000w, it doesnt have to be a perfect DC signal, just enough to charge the batteries, hopefully you can help im stuck up against a wall

Without getting too complicated, the way I would go would be to get a 110V -> 32* V transformer rated at 10A (output current). Wire this across the 110V with the 32V winding in series with the 110V so it should give 75 V. Apply this to a bridge rectifier with a large capacitor (>470 MF) across its output with any luck you should now have 102V or so. The problem now is to build a stabilizer to drop the 102V to 98 V. I would use a LM 317 + power transistor (to handle extra current). See :-http://www.datasheetcatalog.com/datasheets_pdf/L/M/3/1/LM317.shtml ( change the value of the pot down to earth)
Will your generator actually deliver 110V at 10 A?
Frank
* you could use 2 X 110V -> 12V at 10A

Another thought, why not tinker (adjust)the output of the alternator down to 80V or so or even reset the engine speed so the voltage drops.
Frank

ak11667 said:

i have a moderate electronic circuit background

im building a electric vehicle from a 1974 VW beetle and i had a idea to help me drive further, i wanted to take a small 110v AC generator and convert the AC to DC and then regulate it to 98v, i need the circuit to handle at least 1000w, it doesnt have to be a perfect DC signal, just enough to charge the batteries, hopefully you can help im stuck up against a wall

Click to expand...

You need a battery charger? What type of battery, voltage, Ah ?

papunblg said:

You need a battery charger? What type of battery, voltage, Ah ?

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I think he need 98V at 10A for his lead acid bank (I think he have 8 batteries in serie, maybe one chain more in parallel).

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You can see some solutions with triacs.