Lee Hart, I have great respect for you and your opinion. I would admonish anyone not to go and try using a motor controller for a battery charger without ascertaining the exact design parameters it is capable of. Every model is usually different and some are capable of battery charging right off of the shelf, and others will require current limiting, to prevent excessive current flow, or other circuit enhancements. Technical Expertise, is why some can modify or repurpose equipment and others who haven't the knowledge can not...
*Dennis Lee Miles * *Director **E.V.T.I. Inc.* *E-Mail:* *[email protected]* <[email protected]> *Phone #* *(863) 944-9913* Dade City, Florida 33523 USA On Fri, Apr 25, 2014 at 6:10 PM, Willie2 <[email protected]> wrote: > On 04/25/2014 04:34 PM, Lee Hart wrote: > >> Dennis Miles wrote: >> >>> The circuit of the motor controller makes a difference. The old SCR >>> controllers needed the inductive CEMF kick to assure switching, Modern >>> IGFET power transistors do not. so they can act as battery chargers. >>> >> >> I've actually observed just the opposite with the controllers I've tried >> this with. The old GE EV-1 SCR controller has its own internal inductors, >> and worked fine with a resistor or battery as a load. >> >> Solid state controllers with IGBTs or MOSFETs can drive a resistive load, >> as long as the peak current doesn't exceed their current limit. But they >> cannot drive a battery as load; the battery's resistance is too low. >> >> I've read/heard that the Synkromotive controller can function as a > charger. Does anyone know anything about that? Were that true, it seems > like a lotta folks would be doing it and saving $500+ for a charger. > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/ > group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140425/0f0b4d20/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
