abut arduino

Are you trying to generate pulses of controlled width, one per half cycle of an incoming sine wave ?

If so then please tell us the frequency of the input sine wave, the range of pulse widths you need coming out, where the sine wave comes from and what hardware you have. Some diagrams would be nice. With some additional information it will be possible to help you. If my guess at what you are trying to do is correct it is possible in principle.

MK

#include<PWM.h>

int32_t frequency =100000;

void setup()

{

InitTimersSafe() ;

bool success = SetPinFrequencySafe(9, frequency);

if(success) {

  pinMode(13, OUTPUT);

  digitalWrite(13,HIGH);

}

}

void loop() {

int sensorValue= analogRead(A0);

pwmWrite(9, sensorValue /4);

delay(30);

}

                                                                                          from the signal generator i have  provide a supply of  5 v pp and 50 hz frequency, +ve part provided to the  diode and the diode is connected to the  a0 pin in the arduino uno  and-ve part of signal generator to ground the .then is have taken output from 9 pin and at this point i am getting pwm of  only +ve cycle of sine wave input as reference(as i have used a diode)

now i need to generate pwm of -ve cycle

1. i want arduino code to store the +ve cycle pwm wave  in other pin and then during -ve cycle i want to output it through this pin .by this i would get  pwm for both +ve and -ve cycle of sine wave  and  it would be helpful if any way is there to distinguish the pwm for +ve and -ve cycle

2 in a simple way i need to generate a pwm for -ve cycle and need to do it by arduino code only and not by rectifier (less circuit part  and more part must be done in coding)

any way u could help me to do this it would be of great help.

#include<PWM.h>

int32_t frequency =100000;

void setup()

{

InitTimersSafe() ;

bool success = SetPinFrequencySafe(9, frequency);

if(success) {

  pinMode(13, OUTPUT);

  digitalWrite(13,HIGH);

}

}

void loop() {

int sensorValue= analogRead(A0);

pwmWrite(9, sensorValue /4);

delay(30);

}

                                                                                          from the signal generator i have  provide a supply of  5 v pp and 50 hz frequency, +ve part provided to the  diode and the diode is connected to the  a0 pin in the arduino uno  and-ve part of signal generator to ground the .then is have taken output from 9 pin and at this point i am getting pwm of  only +ve cycle of sine wave input as reference(as i have used a diode)

now i need to generate pwm of -ve cycle

1. i want arduino code to store the +ve cycle pwm wave  in other pin and then during -ve cycle i want to output it through this pin .by this i would get  pwm for both +ve and -ve cycle of sine wave  and  it would be helpful if any way is there to distinguish the pwm for +ve and -ve cycle

2 in a simple way i need to generate a pwm for -ve cycle and need to do it by arduino code only and not by rectifier (less circuit part  and more part must be done in coding)

any way u could help me to do this it would be of great help.