Kevin,
Thanks for the return to the practical, affordable, and reliable.
Mark Stafford
--- In electricboats@
>
> I know this isn't the most popular, but for charging using ICE a commercial/ marine alternator is still the simple solution. Three stage regulators are available for proper efficient charging. Simply use a voltage divider on the sense wire to obtain the voltage needed for your battery bank voltage. The only limitation on voltage are the diodes, and I have seen stock diodes working without failure at 130v.
>
> One of the advantages of excited fields, is the ability to increase or decrease the magnetic flux of the field, thus overcoming the need to regulate the engine RPM to keep the voltage in range for charging. You will need to set up pulleys that increase alternator RPM for your higher voltages to keep the engine RPM at lower operating speeds but that is all you should have to do.
>
> While engineering our electric drive, we get so involved with efficiency that we sometimes forget that there are times that efficiency is not all that important. We then find roadblocks in what we are trying to do. Some even fail to convert to electric drive and accept a standard solution not close to the efficiencies they once dreamed of for there boat. Go ahead and consider a less efficient alternator for your system, the overall result will still be much better.
>
> Kevin
> http://simplyrv.
>
> For RV information
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