Feb 24, 2009 #1 K kvrajasekar Junior Member level 3 Joined Sep 18, 2008 Messages 28 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,283 Activity points 1,517 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.
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.
Mar 13, 2009 #2 mrcube_ns Advanced Member level 1 Joined Apr 10, 2002 Messages 452 Helped 48 Reputation 96 Reaction score 34 Trophy points 1,308 Location Europe Activity points 3,813 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 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
Apr 9, 2009 #3 K kvrajasekar Junior Member level 3 Joined Sep 18, 2008 Messages 28 Helped 2 Reputation 4 Reaction score 2 Trophy points 1,283 Activity points 1,517 Re: sine pwm using 16f72 thanks for the reply.I used 16f716 to develop half bridge.It gives good response .
Re: sine pwm using 16f72 thanks for the reply.I used 16f716 to develop half bridge.It gives good response .