On 17 December 2016 at 21:56, Jon Elson <[email protected]> wrote: > Well, I think the A06B-6058 is a PWM-input servo amp that > requires SIX PWM signals, one to drive each transistor. > That's six signals PER AXIS.
As Jon mentioned, Mesa does have a three-phase PWM module that (in some configurations) has all 6 channels connected to output pins. The software "bldc" component can provide 6 separate PWM amplitudes, but that isn't something that you can connect to 6 separate PWM modules, as the PWM signals need to be running in phase with each other, or there is a danger of turning on both the high and low side drivers of the same part of the bridge: https://en.wikipedia.org/wiki/Power_inverter#Three-phase_inverters shows why some drives need 6 PWM channels, and also shows why having high-side and low-side turned on at the same time is a problem. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
