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hi...i use dspic33fj and ccs compiler...how can i 120 degree phase shift the pwm wave ?
i wrote this source and it work but there is a problem...in duty from 0 to 60% work very well but higher duty from 60 to 95 the second pwm go to high level...whats wrong?
#include <33FJ128GP804.h>
#FUSES...
tnx for reply... i have 2 floor pcb ...first floor is power FET with ir2104 driver and second floor is micro and feedback zero crossing that connect with header pin in middle of pcb..i separate Power Fet Gnd from micro Gnd...My worries about if i not separate 4 micro gnd, May affect on other...
hi buddies
i have 4 micro with 50 MHZ clock speed that control 4 brushless motor in one pcb...my question is that do i need separate each micro ground? my pcb dimension 100 mm * 100mm
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