Joined: 12 Nov 2012 Posts: 357 Location: South Africa
PIC24FJGAxxx PWM module
Posted: Wed Apr 10, 2013 8:54 am
Are there a way to do a type of MC PWM with this chip. I just need to output a compliment of the PWM signal on another pin to drive a low power full bridge SMPS.
Application are battery driven and this PIC are the only one that I could find with a low Idd at 16MIPS and 16bit wide.
Compiler 4.140
Thanks
Alan
Ttelmah
Joined: 11 Mar 2010 Posts: 19545
Posted: Wed Apr 10, 2013 11:01 am
Only way I can think of without just using an external inverter, would be to use the comparator as an inverter. Obviously costs one pin to feed the PWM into the comparator input.
Best Wishes
alan
Joined: 12 Nov 2012 Posts: 357 Location: South Africa
Posted: Thu Apr 11, 2013 1:23 am
Thanks Ttelmah, I was hoping to use another way as my comparators were already used, but I just moved the one to use as PWM inverter.
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