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i want to generate '1' and '0' with the intervals between 10 microseconds..can anyone give me a instruction how to do this..i'm using c programming to build this operation.
i,m using pic16f877 to generate SPWM. sine wave that i build in half wave need to be invert because PIC cannot read in negative value. can anybody help me with this problem..this is what i write in c programming.
#include <stdio.h>
#include<math.h>
#include<float.h>
int main()
{
int...
the duty cycle for SPWM is change..the pulse is generated when triangle wave is greater than sinusoidal wave. how can i set time in one cycle for triangle wave? the result of pulse occurs when the the counter from triangular wave is greater than the sine table point in a register. that why the...
how can i made a counter for PR2? if i use a compare mode the PR1 can made a counter but cannot define the frequency of triangle wave..this is really confuses me.
CCP mode for PIC16F873
i want to generate Sinusoidal pulse width modulation(SPWM), what mode is a suitable choice? CCP mode contain capture, compare and PWN mode. the SPWM is generated by comparing 2 signal wave that is sinusoidal and triangle wave. the intersection of that wave is the point...
i want to generate sinusoidal wave using sine table in ccp mode. i want to use 10 point per half cycle using natural sampling method..this point are store in sine table and can be call for anytime to do another jobs..(in my project this point are compare with triangular wave to produce a PWM...
generate Sinusoidal PWM
i,m using inverter to control the speed of AC induction motor. switching for this inverter by using tyristor or IGBT. 3 phase PWM were be the pulse for this switch..i use 1khz freq for triangular wave and 50hz for sinusoidal wave, by comparing this 2 wave PWM was...
Re: generate triangular wave
i choose to use capture mode for the triangular wave and compare mode for sinusoidal wave..how can i change the condition for CCP1CON from rising edge to falling edge? i,m using c programming and choose to use for loop to generate triangular wave from 0 to 256 for...
Re: generate triangular wave
the triangular wave is vary to controlled the motor speed..i want to generate this triangular wave using digital method to produce sinusoidal PWM.
Re: generate triangular wave
i,m using inverter to control the speed of AC induction motor. switching for this inverter by using tyristor or IGBT. 3 phase PWM were be the pulse for this switch..i use 1khz freq for triangular wave and 50hz for sinusoidal wave, by comparing this 2 wave PWM was...
generate triangular wave
i,m using a PIC 16f873 and want to generate a triangular wave. do i need tonuse capture mode continuously until the wave reach to top wave for raising edge and return to bottom wave for falling edge?
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