A brushed AC motor in a drill/router/saw is almost assuredly a 'universal' motor. Its a DC parallel field wound motor. Thus both the rotor and stator are connected to the same terminals. When the AC polarity reverses BOTH magnetic fields reverse and the motor still turns the same direction (both negatives cancel one another.) Its simply a DC motor thats running on pulsed input voltage. W/ low enough winding inductance it there is very little current phase shift. A 120V AC universal motor drill will work fine on 120V DC. Done it (Friend had a home made electric Geo w/ ~120V battery pack. Could run drills and such plugged directly into the battery.)
The type of motor control you listed form amazon should work. You will lose torque at lower voltage as you are reducing the field too. But if running it in some sort of closed loop fashion, the loop should correct for that. Stephen On Fri, May 15, 2015 at 10:14 AM, <[email protected]> wrote: > On Fri, 15 May 2015, andy pugh wrote: > > > On 15 May 2015 at 14:44, <[email protected]> wrote: > >> Can a motor like this be controlled with pwm > > > > Yes, that is what the light-dimmers do. > > > > Brushed-AC (universal) motors will also work on DC, but typically they > > require much less voltage in DC operation. > > > > (PWM-modulation of AC current isn't all that simple) > > > > So in your opinion is something like > http://www.amazon.com/E-Age-50-220V-2000W-Motor-Controller/dp/B00GMBYFRK > worth even giving a try > > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
