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Thank nikhilt007 but such I must use not logic gate to invert pusle from pic16f877a.because duty cycle from zero to 180 degree not from 180 to 0 degree.I regulate for three phase but pic16f877a only have ccp1 and ccp2(pwm1 and pwm2).Can you give me some Idea?
I use pic16f877a generate pulse to trigger triac to adjust the brightness of halogen light. 3 phase AC 220/380v.It is light incandescent.Can you help me!!!!!!.I think DC voltage using PWM but AC voltage with triac no using pWM because when trigger triac It will conduct in half cycle .220/380...
I use Rb interrupt(Rb5,Rb6,Rb7) to detect zero crossing of power supply From zero crossing circuit.I want to regulate output voltage provide for lights.You can give me some ideas please?.Thank you very much!!!!
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