6 HPWM signal generation with PIC18F4431

[pxidr84]

Hi,
How about:

'PWM U phase calculation
uduty=((sin(t)+128)*4)  
      
'PWM V phase calculation
vduty=((sin(t+85)+128)*4)
    
 'PWM W phase calculation
wduty=((sin(t+170)+128)*4

Attachment 5180

It's true that you can't mutliply by 0.5 but you can divide by 2. You can also use the ** operator to multiply by units of 1/65536 so instead of doing x=y*0.72 you do x=y**47186 (where 47186 comes from 65536*0.72)

/Henrik.

Thanks a lot for your tips
Just a question : what simulator are you using ? (because my ISIS Proteus gives me very weird results):



It's your code with angle phase offsets...