ARDUINO PURE SINE WAVE INVERTER WITH FEEDBACK

Projects General Guidance
1

PLEASE I NEED HELP WITH THIS PROJECT. IM HAVING DIFFICULTY WRITING THE INVERTER CODES, THE ONES I WROTE DIDNT WORK, SO I RESULTED TO BUYING ONE.. BUT I LOST THE HEADER FILE. BELOW IS THE CODE. PLEASE CAN SOMEONE HELP WITH HOW TO GO ABOUT WITH THE HEADER FILE, OR IDEAS ON HOW TO WRITE IT
//#include "sinData.h"
#define MaxVoltage 1000
#define MinVoltage 600
#define MaxFreq 60
#define MinFreq 5
#define MaxCurrent 800
int Voltage;
int Current;
int flagShutDown;
bool flagBtnSpeedDn;
bool flagBtnSpeedUp;
float Frequency;
#define pinShutDown 4
#define pinADCCurrent A2
#define pinADCVoltage A0
#define pinOverVoltageLED 2
#define pinUnderVoltageLED 5
#define pinOverCurrentLED 3
#define pinOperationRelay 9
#define pinBtnSpeedUp 10
#define pinBtnSpeedDn 11
#define pinPWMOutput 6

void ShutDown()
{
digitalWrite(pinShutDown, HIGH);
digitalWrite(pinOperationRelay, LOW);
flagShutDown = true;
}

void InitPinMode()
{
pinMode(pinShutDown, OUTPUT);
pinMode(pinOverVoltageLED, OUTPUT);
pinMode(pinUnderVoltageLED, OUTPUT);
pinMode(pinOverCurrentLED, OUTPUT);
pinMode(pinOperationRelay , OUTPUT);
pinMode(pinBtnSpeedUp, INPUT);
pinMode(pinBtnSpeedDn, INPUT);
pinMode(pinPWMOutput, OUTPUT);
}

void InitStatus()
{
flagShutDown = false;
Frequency = 50;
flagBtnSpeedDn = true;
flagBtnSpeedUp = true;
digitalWrite(pinShutDown, LOW);
digitalWrite(pinOverVoltageLED, LOW);
digitalWrite(pinUnderVoltageLED, LOW);
digitalWrite(pinOverCurrentLED, LOW);
digitalWrite(pinOperationRelay, LOW);
digitalWrite(pinBtnSpeedUp, HIGH);
digitalWrite(pinBtnSpeedDn, HIGH);
}

void CheckFaults() {
Voltage = analogRead(pinADCVoltage);
delay(50);
if (Voltage > MaxVoltage) {
ShutDown();
digitalWrite(pinOverVoltageLED, HIGH);
}
if (Voltage < MinVoltage) {
ShutDown();
digitalWrite(pinUnderVoltageLED, HIGH);
}
Current = analogRead(pinADCCurrent);
delay(50);
if (Current > MaxCurrent) {
ShutDown();
digitalWrite(pinOverCurrentLED, HIGH);
}
}

volatile uint16_t sample;
ISR(TIMER1_COMPA_vect) {
if (sample >= sinewave_length) {
sample = -1;
} else {
OCR0A = pgm_read_byte(&sinewave_data[sample]);
}
++sample;
}

void UpdateFreq()
{
OCR1A = F_CPU / (256 * Frequency);
}

void startPWM()
{
TCCR0A |= _BV(WGM01) | _BV(WGM00);
TCCR0B &= ~_BV(WGM02);
TCCR0A = (TCCR0A | _BV(COM0A1)) & ~_BV(COM0A0);
TCCR0A &= ~(_BV(COM0B1) | _BV(COM0B0));
TCCR0B = (TCCR0B & ~(_BV(CS02) | _BV(CS01))) | _BV(CS00);
OCR0A = pgm_read_byte(&sinewave_data[0]);
cli();
TCCR1B = (TCCR1B & ~_BV(WGM13)) | _BV(WGM12);
TCCR1A = TCCR1A & ~(_BV(WGM11) | _BV(WGM10));
TCCR1B = (TCCR1B & ~(_BV(CS12) | _BV(CS11))) | _BV(CS10);
UpdateFreq();
TIMSK1 |= _BV(OCIE1A);
sample = 0;
sei();
}

void setup()
{
InitPinMode();
InitStatus();
startPWM();
}

2

For informed help, please read and follow the directions in the "How to use this forum" post.

Edit your post to add code tags, clearly explain the problems you are having and remove the ALL CAPS SHOUTING.

Finally, a clear, complete schematic circuit diagram with properly identified components, and complete code required.

3

That code is incomplete (it misses a loop() function).

That commented-out "sinData.h" is what I guess you refer to as "the header". That's likely to be part of some kind of library, normally coming together with a .cpp file containing a number of functions. Those all would have to be re-written, but in order to do so you first have to know exactly what those functions are supposed to do.

If you don't know this, we certainly don't know, so the only advice I can give is contact the vendor.

4

It appears that it contained a sine table (byte array in progmem ) and its length. But could be much more, depending on what , if anything, was in loop().
Possibly a full sine wave running from 127 .. 255 .. 127 .. 0 .. 127 with intermediate values determined by the resolution.
Here is one example: https://www.instructables.com/id/Arduino-Sinewave-for-Inverters/

It could have looked something like this:

// sinData.h

#ifndef _SINDATA_H_
#define _SINDATA_H_

// from http://vk4ffab.info/2017/06/28/so-you-want-to-make-a-sine-wave-in-arduino/

// table of 256 sine values / one sine period / stored in flash memory
PROGMEM const byte sinewave_data[] = {
  127, 130, 133, 136, 139, 143, 146, 149, 152, 155, 158, 161, 164, 167, 170, 173, 176, 178, 181, 184, 187, 190, 192, 195, 198, 200, 203, 205, 208, 210, 212, 215, 217, 219, 221, 223, 225, 227, 229, 231, 233, 234, 236, 238, 239, 240,
  242, 243, 244, 245, 247, 248, 249, 249, 250, 251, 252, 252, 253, 253, 253, 254, 254, 254, 254, 254, 254, 254, 253, 253, 253, 252, 252, 251, 250, 249, 249, 248, 247, 245, 244, 243, 242, 240, 239, 238, 236, 234, 233, 231, 229, 227, 225, 223,
  221, 219, 217, 215, 212, 210, 208, 205, 203, 200, 198, 195, 192, 190, 187, 184, 181, 178, 176, 173, 170, 167, 164, 161, 158, 155, 152, 149, 146, 143, 139, 136, 133, 130, 127, 124, 121, 118, 115, 111, 108, 105, 102, 99, 96, 93, 90, 87, 84, 81, 78,
  76, 73, 70, 67, 64, 62, 59, 56, 54, 51, 49, 46, 44, 42, 39, 37, 35, 33, 31, 29, 27, 25, 23, 21, 20, 18, 16, 15, 14, 12, 11, 10, 9, 7, 6, 5, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 5, 6, 7, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 23, 25, 27, 29, 31,
  33, 35, 37, 39, 42, 44, 46, 49, 51, 54, 56, 59, 62, 64, 67, 70, 73, 76, 78, 81, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 115, 118, 121, 124
};

sinewave_length = 256 ;

#endif
5

how make circuit this code???