Bit Angle Modulation (BAM) !

[ELCouz]

Dear Members,

Just curious,

Does anyone have successfully used Bit Angle Modulation instead of Pulse Width Modulation with a pic?

Here's a explanation here of what is bam.

48 channel software pwm is difficult to create with a pic , with the BAM method it's very possible and there's many CPU cycles left to do other things...

Here's a short quote from the PDF

[SherpaDoug]

That PDF doesn't say much. It looks like it would take a lot of CPU cycles to implement. The poor CPU has to run fast to keep up with the switching speed of bits 0 & 1, while not flickering too much on bit 7. Maybe they have some computational trick to make it easy.

It might be good for low power devices like LEDs, but for high power reactive loads you generally want to minimize total switching events, as that is when switch inefficiencies take their toll. In their example the top trace shows four switching events per cycle vs. two events for ordinary PWM. Double the switching events means double the dynamic switching losses. Statistically real world results should be even worse.

Unless they have some trick I don't see it is going to be hard to adapt to any sort of 3 phase power.
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[ELCouz]