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Altera_Forum
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11 years ago

PWM signal via sine-triangle comparison

Hello, right now i am stuck in aproblem in my project. I hope its not explained to complicated and someone can help me (-: I try to generate a pwm signal out of a sine with 50 Hz - 20ms. I ha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

hey kaz,

I could implement a triangular LUT.

But i dont understand whats the idea behind the pointer and the tuning word.

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0 adds tuning word modulo 512 (same as nco idea)

tuning word for accumulator in my example = 512*f/clk

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Could you please this a bit more in detail ?

thanks a lot!!

Tim