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Altera_Forum's avatar
Altera_Forum
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14 years ago

How to design a pwm generator?

I intend to design a PWM block by Freq input(interger 16bit ). ----------------------------------------------------------------------- Now I use a division IP core to caculate the counter by a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

A pwm generator has two parameters, frequency and duty cycle, so it's not clear what you want to achieve. Generating a pulse frequency proportional to control variable can be easily done by a standard NCO scheme: adding the frequency control word continuously to a phase accumulator.