You can learn from this guy who designed his own controller some time ago, now he runs his own brand a some great products: http://zeva.com.au/Research/ControllerDesign/
But I can tell you from own experience: Designing your own stuff, like a high power motor controller is not a Cheap thing. You will require lots of trial and error, learn and explode lots of MOSFets or IGBTs and that requires time & money, but satisfaction once your prototype is running smooth and nice is huge. If you are looking for cheap stuff (Cost), then you can only choose one more the two left: Time or Quality. But they'll never come all three thogether. On Thu, Feb 8, 2018 at 6:25 PM, John Lussmyer via EV <ev@lists.evdl.org> wrote: > On Thu Feb 08 14:38:19 PST 2018 ev@lists.evdl.org said: > >Hi I am a hobbiest and started my first conversion, I have a car that I > got retro fitted with a Series wound DC motor. I tested the car with > batteries alone and it did move. I am designing a controller for the DC > wound motor. I am running into a few issues with the controller. The > > One good place for controller building/design work is: > > Evtech mailing list > > evt...@lists.nnytech.net > > http://lists.nnytech.net/listinfo/evtech > > > > -- > > Worlds only All Electric F-250 truck! http://john.casadelgato.com/ > Electric-Vehicles/1995-Ford-F-250 > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at 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/20180208/63786367/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)