inverter_pwm

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By: MarkT , created: 2014-08-03 | updated: 2014-08-03

Inverter (ie 3-phase) PWM generator for driving AC motors.

Options are 3 or 6 pin output (with two dead-time options in the latter case).

Period is anything you want although >100kHz would be pushing it, realistically.

3 cogs are needed to get switching accurate to one cycle (12.5ns) and allow
fine-grained control at high PWM frequencies. At 16kHz there are over 2400
levels per channel (which you supply as a signed value in range -1200 -- +1200)

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