Correct - a *supply* can use switching to minimize losses, a *load* simply burns the power away in linear mode (current control).
Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water Tel: +1 408 383 7626 -----Original Message----- From: EV [mailto:[email protected]] On Behalf Of Roger Stockton via EV Sent: Thursday, November 06, 2014 1:12 PM To: Electric Vehicle Discussion List Subject: Re: [EVDL] Q about using an electronic load. Michael Ross wrote: > If I have a programmable electronic load, rather than purely resistive > loads, is this an unrealistic way to discharge batteries? > > I gather they use power MOSFETS and switch them to product the desired > output current from the batteries. I think this implies some transients > at some frequency. A programmable load is fine for discharging batteries. I believe the power devices are operated in linear mode, not PWMed, and have not observed any transients on the load current on any of the electronic loads I've used. Cheers, Roger. _______________________________________________ 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) _______________________________________________ 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)
