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sine pwm using 16f72 (asm code) - failed

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kvrajasekar

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sine pwm using 16f72

Hi,



I am trying to generate sine pwm using 16f72(asm code).I tried same thing few months back,but failed.(F-50hz,Fosc-20Mhz,Fpwm-20Khz)



Now again planing to start the sine pwm generation.I know how to use the sine LUT and CCP pin.

Please help me how to generate sine pwm(I have to implement like the attached image).



-Raja.
 

Re: sine pwm using 16f72

It's simple, use comparator (or Opampwithout feedback or with big amplication) and connect sinus signal to plus input pin, and triangle to minus input pin of comparator.

On out you will get PWM signal just you need.

Mr.Cube
 

Re: sine pwm using 16f72

thanks for the reply.I used 16f716 to develop half bridge.It gives good response .
 

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