Hi there,
I'm currently making a 3-phase variable frequency drive.
I'm using the PIC18F4431 (5V - 40 pins - 40MHz), who's perfect for motor control (8 hardware PWM outputs).
Datasheet : http://ww1.microchip.com/downloads/e...Doc/39616d.pdf
I like to generate 3 high-side hardware PWM (HU, HV, HW) and 3 low-side hardware PWM (LU, LV, LW - same as HU, HV, HW but inverted with a low deadtime) for fed my high and low-side IGBTs.
I would like a PWM carrier frequency between 2 and 20kHz (approx.)
Picbasic Pro seems to use CCP1 and CCP2 modules with "HPWM" command, but I get only 2 HPWM outputs.
I have no idea how to use these hardware PWM modules on my PIC.
Thanks for your help.
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