how can i get 2 pwm's with a 180 degree phase shift

actually i am designing a controller for an interleaved boost converter for which i require 2 pwm's 180 degree out of phase. so pls help me on that

[nagaraju madlapelli]

take two pwm pulse generators and in 1st pulse generator put phase delay as zero and put delay of 180 degree that is half of your circuit time in second pwm pulse generator as phase delay

and imp note is two switches duty ratio must be same..

Answer 1

[Kurt Hellmuth]

Hello if you know it, its very easy:

CCP1CON = 00111110 ;

CCP1CON = 00111100 ;

for example it is 180 degrees shifting.

That means:

CCP1CON = 00111110 ;

CCP2CON = 00111100 ;

and you get a 180° signal for beeper or so on.

Thats all.

VY 73 Kurt

Answer 2

[K RAJAMOHANA]

how can we generate pulse for interleaved boost converter in closed loop condition ?...

Actually, using pi controller i have generate one pwm pulse for one leg and for second leg using NOT gate, i hav made 180 degree phase shift of first pulse and then put it to second leg. is it correct?

[Arkadeep Deb]

How did you make phase shift by 180 degree of first pulse?

[SRI MEGHA GUNDEPURI]

Can somebody help me how to generate two pulses with phase difference of 180 degrees in closed loop control of two phase dc-dc converter..