N. Christopher Perry
On Jul 15, 2013, at 14:13, propcoder <[email protected]> wrote: > I am thinking of my misfortune with IRAM IGBT module and BLDC motors. As > I wrote earlier - the motion and torque was not smooth. Do you really need IGBTs? Are your voltages/currents high enough to require them. FETs are much easier to work with. > > Is there sense to try to commutate lower transistors just on-off and > higher ones with sine PWM? If so - can simple hm2 firmware with pwmgens > be used for that (instead of 3pwmgens, which do have A-value, B-value > and C-value input pins only)? > > Marius > You should be able to do that. It does make shot-through a little easier to manage. Also, there are 3-phase gate drive controllers that will manage the gate timing for you. Do a google search for them. Fairchild and IRF have a range of them. > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
