sine_pwm_voltage-regulator_32_int.c

sinewave inverter drawing and c code

            break;
         case 2:                                                                 // stop mode;
            sine_pwm_stop();
            if(index==31) inv_mode=4;
            break;
         case 3:                                                                 // standby mode;
            sine_pwm_stdby();
            stdby_delay--;
            break;
         case 4:                                                                 // idle mode;
            set_pwm1_duty(0);                                                    // M=0;
            if((!high_t_stop)&&(!low_curr)&&(!low_acc_delay)) {
               if(stdby_delay>1023) output_high(PIN_B4);                         // Blink Green LED;
               else output_low(PIN_B4);
            }
            if(!stdby_delay) {
               stdby_delay=2047;
               if(stdby) inv_mode=3;
               else inv_mode=0;
            }
            else stdby_delay--;
            break;
      }
      if(index==15) {
         set_adc_channel(acc_chan);
         delay_us(10);
         read_adc(ADC_START_ONLY);
         delay_us(20);
         acc_v=read_adc(ADC_READ_ONLY);
         acc_v_temp+=acc_v;
         acc_avg_counter++;
         if(acc_avg_counter==32) {
            acc_avg_counter=0;
            acc_v_avg=acc_v_temp>>5;
            if(acc_v_avg<=acc_min_l) {
               low_acc_delay++;
               if(!high_t_stop) {
                  output_low(PIN_B4);
                  output_high(PIN_B5);
               }
               if(low_acc_delay==16) {
                  low_acc=1;
                  low_acc_delay=0;
               }
            }
            else {
               if(acc_v_avg>=acc_max_h) high_acc=1;
               low_acc_delay=0;
            }
            acc_v_temp=0;
            acc_v_avg=0;
         }
         output_low(PIN_C3);                                                     // check vref value;
         set_adc_channel(stdby_chan);
         delay_us(10);
         read_adc(ADC_START_ONLY);
         delay_us(20);
         volt_ref=read_adc(ADC_READ_ONLY);
         volt_ref_temp+=volt_ref;
         volt_ref_counter++;
         if(volt_ref_counter==32) {
            volt_ref_avg=volt_ref_temp>>8;
            volt_ref_delta=volt_ref_avg-30;
            volt_ref_counter=0;
            volt_ref_temp=0;
         }
      }
      if(index==31) {
         if(over_curr_delay>1600) over_curr=1;
         if(!input(PIN_C4)) {
            high_t_delay++;
            output_high(PIN_C5);
            if((high_t_delay>255)&&(high_t_delay<1024)) {
               high_t_stop=1;
               output_low(PIN_B4);
               if(high_t_blink>45) output_high(PIN_B5);                          // Blink Red LED;
               else output_low(PIN_B5);
               if(!high_t_blink) high_t_blink=90;
               else high_t_blink--;
            }
            else if(high_t_delay>1023) high_t_stop++;
         }
         else {
            high_t_delay=0;
            high_t_stop=0;
            high_t_blink=90;
            output_low(PIN_C5);
         }
         output_high(PIN_C3);                                                    // check stdby current value;
         set_adc_channel(stdby_chan);
         delay_us(10);
         read_adc(ADC_START_ONLY);
         delay_us(20);
         stdby_i=read_adc(ADC_READ_ONLY);
         stdby_i_temp+=stdby_i;
         stdby_i_avg_counter++;
         if(stdby_i_avg_counter==32) {
            stdby_i=stdby_i_temp>>5;
            if(stdby_i>=stdby_max) inv_on=1;
            else inv_on=0;
            if(stdby_i<=stdby_min) inv_off=1;
            stdby_i_h=(stdby_i>>1)+128;
            //if(stdby_i_h>stdby_i_h_max) stdby_i_h=stdby_i_h_max;
            //else if(stdby_i_h<stdby_i_h_min) stdby_i_h=stdby_i_h_min;
            stdby_i_l=255-stdby_i_h;
            stdby_i_avg_counter=0;
            stdby_i_temp=0;
         }
      }
   index++;
   if(index>31) index=0;
   }
   else {                                                                        // acc low mode;
      set_pwm1_duty(0);                                                          // M=0;
      output_high(PIN_C0);                                                       // Z=1;
      output_low(PIN_B4);                                                        // Green LED-OFF;
      if(!inv_off) output_high(PIN_B5);                                          // Red LED-ON;
      inv_mode=0;
      index=0;
      short_curr=0;
      over_curr=0;
      over_curr_delay=0;
      high_ab=0;
      high_t_delay=0;
      high_t_stop=0;
      stdby=0;
      pwm_pos=0;
      pwm_neg=0;
      delta_h_v=0;
      delta_l_v=0;
      //delta_h_ref_v=0;
      //delta_l_ref_v=0;
      //diff_h_v=0;
      //diff_l_v=0;
      delta_h_ref=0;
      delta_l_ref=0;
      //delta_h_ref_adj=0;
      //delta_l_ref_adj=0;
      low_curr_h=0;
      low_curr_l=0;
      curr_h_temp=0;
      curr_h_avg=0;
      curr_l_temp=0;
      curr_l_avg=0;
      low_curr=0;
      volt_h_temp=0;
      volt_h_avg=0;
      volt_l_temp=0;
      volt_l_avg=0;
      volt_ref_temp=0;
      volt_ref_avg=0;
      volt_ref_delta=0;
      volt_ref_counter=0;
      volt_h_avg_counter=0;
      volt_l_avg_counter=0;
      //volt_l_avg_counter=0;
      stdby_i_temp=0;
      //stdby_i_avg_counter=0;
      stdby_go_delay=0;
      stdby_delay=2047;
      high_t_blink=90;
      low_acc_delay=0;
      stdby_go_blink=60;
      //level=0;
      //level_corr=0;
      //level_l_corr=0;
      for(i=0; i<32; i++) {
         shape_corr[i]=0;
         //shape_l_corr[i]=0;
         level_corr[i]=0;
         //level_adj[i]=0;
         //shape_h_corr_temp[i]=0;
         //shape_l_corr_temp[i]=0;
      }
      output_high(PIN_C3);                                                       // check stdby current value;
      set_adc_channel(stdby_chan);
      delay_us(10);
      read_adc(ADC_START_ONLY);
      delay_us(20);
      stdby_i=read_adc(ADC_READ_ONLY);
      stdby_i_temp+=stdby_i;
      stdby_i_avg_counter++;
      if(stdby_i_avg_counter==32) {
         stdby_i=stdby_i_temp>>5;
         if(stdby_i>stdby_min) inv_off=0;
         //else inv_off=0;
         stdby_i_h=(stdby_i>>1)+128;
         //if(stdby_i_h>stdby_i_h_max) stdby_i_h=stdby_i_h_max;
         //else if(stdby_i_h<stdby_i_h_min) stdby_i_h=stdby_i_h_min;
         stdby_i_l=255-stdby_i_h;
         stdby_i_avg_counter=0;
         stdby_i_temp=0;
      }
      set_adc_channel(acc_chan);
      delay_us(10);
      read_adc(ADC_START_ONLY);
      delay_us(20);
      acc_v=read_adc(ADC_READ_ONLY);
      acc_v_temp+=acc_v;
      acc_avg_counter++;
      if(acc_avg_counter==32) {
         acc_avg_counter=0;
         acc_v_avg=acc_v_temp>>5;
         if(acc_v_avg<=acc_max_l) high_acc=0;
         if(acc_v_avg>=acc_min_h) low_acc=0;
         acc_v_temp=0;
         acc_v_avg=0;
      }
      if(input(PIN_C4)) output_low(PIN_C5);
   }
}


void main()
{
   set_tris_b(0xCD);
   set_tris_c(0x90);
   output_high(PIN_C0);                                                          // Z=1;
   output_high(PIN_B4);                                                          // test LED's;
   output_low(PIN_B5);
   delay_ms(1000);
   output_low(PIN_B4);
   output_high(PIN_B5);
   delay_ms(1000);
   output_low(PIN_B5);
   index=0;
   inv_mode=0;                                                                   // init to normal start mode;
   inv_on=0;
   inv_off=0;
   stdby_mode=0;
   short_curr=0;
   over_curr=0;
   over_curr_delay=0;
   high_ab=0;
   high_t_delay=0;
   high_t_stop=0;
   low_acc=0;
   high_acc=0;
   acc_v_temp=0;
   acc_avg_counter=0;
   acc_v_avg=0;
   stdby=0;
   pwm_pos=0;
   pwm_neg=0;
   delta_h_v=0;
   delta_l_v=0;
   //delta_h_ref_v=0;
   //delta_l_ref_v=0;
   //diff_h_v=0;
   //diff_l_v=0;
   delta_h_ref=0;
   delta_l_ref=0;
   //delta_h_ref_corr=0;
   //delta_l_ref_corr=0;
   low_curr_h=0;
   low_curr_l=0;
   low_curr=0;
   curr_h_temp=0;
   curr_h_avg=0;
   curr_l_temp=0;
   curr_l_avg=0;
   low_curr=0;
   volt_h_temp=0;
   volt_h_avg=0;
   volt_l_temp=0;
   volt_l_avg=0;
   volt_ref_temp=0;
   volt_ref_avg=0;
   volt_ref_delta=0;
   volt_ref_counter=0;
   volt_h_avg_counter=0;
   volt_l_avg_counter=0;
   //volt_l_avg_counter=0;
   stdby_i_temp=0;
   stdby_i_avg_counter=0;
   stdby_go_delay=0;
   stdby_delay=2047;
   high_t_blink=90;
   low_acc_delay=0;
   stdby_go_blink=60;
   //level=0;
   //level_corr=0;
   //level_l_corr=0;
   for(i=0; i<32; i++) {
      shape_corr[i]=0;
      //shape_l_corr[i]=0;
      level_corr[i]=0;
      //shape_h_corr_temp[i]=0;
      //shape_l_corr_temp[i]=0;
      //level_adj[i]=0;
   }
   setup_adc_ports(ALL_ANALOG);                                                  // init the ADC;
   setup_adc(ADC_CLOCK_DIV_32);                                                  // Tad=1.6us;
   set_adc_channel(acc_chan);
   delay_us(10);
   for(i=0; i<32; i++) {
      read_adc(ADC_START_ONLY);
      delay_us(20);
      acc_v=read_adc(ADC_READ_ONLY);
      acc_v_temp+=acc_v;
      if(i==31) {
         acc_v_avg=acc_v_temp>>5;
         if(acc_v_avg<=acc_min_l) low_acc=1;
         if(acc_v_avg>=acc_max_h) high_acc=1;
         acc_v_temp=0;
         acc_v_avg=0;
      }
   }
   output_high(PIN_C3);                                                          // check stdby current value;
   set_adc_channel(stdby_chan);
   delay_us(10);
   for(i=0; i<32; i++) {
      read_adc(ADC_START_ONLY);
      delay_us(20);
      stdby_i=read_adc(ADC_READ_ONLY);
      stdby_i_temp+=stdby_i;
      if(i==31) {
         stdby_i=stdby_i_temp>>5;
         if(stdby_i<=stdby_min) inv_off=1;
         else if(stdby_i>=stdby_max) inv_on=1;
         stdby_i_h=(stdby_i>>1)+128;
         //if(stdby_i_h>stdby_i_h_max) stdby_i_h=stdby_i_h_max;
         //else if(stdby_i_h<stdby_i_h_min) stdby_i_h=stdby_i_h_min;
         stdby_i_l=255-stdby_i_h;
         stdby_i_temp=0;
      }
   }
   output_low(PIN_C3);
   set_adc_channel(stdby_chan);                                                  // check vref value;
   delay_us(10);
   for(i=0; i<32; i++) {
      read_adc(ADC_START_ONLY);
      delay_us(20);
      volt_ref=read_adc(ADC_READ_ONLY);
      volt_ref_temp+=volt_ref;
      if(i==31) {
         volt_ref_avg=volt_ref_temp>>8;
         volt_ref_delta=volt_ref_avg-30;
         //volt_ref_l=255-volt_ref_h;
         volt_ref_temp=0;
      }
   }
   setup_timer_2(T2_DIV_BY_1, 255, 1);                                           // Init the PWM;
   setup_ccp1(CCP_PWM);
   set_pwm1_duty(0);
   //setup_ccp2(CCP_PWM);
   //set_pwm2_duty(0);
   setup_wdt(WDT_18MS);
   set_timer0(60);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_8);                                      // Init the TIMER0;
   enable_interrupts(INT_TIMER0);
   enable_interrupts(GLOBAL);
   while(TRUE) {
      restart_wdt();
      if((short_curr)||(high_ab)||(over_curr)||(high_t_stop>1)) {                // stop and wait for 60 sec;
         set_pwm1_duty(0);                                                       // M=0;
         output_high(PIN_C0);                                                    // Z=1;
         disable_interrupts(GLOBAL);
         output_low(PIN_B4);
         output_low(PIN_B5);
         short_curr=0;
         over_curr=0;
         over_curr_delay=0;
         high_ab=0;
         high_t_stop=0;
         high_t_delay=0;
         low_acc=0;
         high_acc=0;
         acc_avg_counter=0;
         acc_v_temp=0;
         acc_v_avg=0;
         low_curr_h=0;
         low_curr_l=0;
         index=0;
         inv_mode=0;
         inv_on=0;
         inv_off=0;
         stdby_mode=0;
         stdby=0;
         pwm_pos=0;
         pwm_neg=0;
         delta_h_v=0;
         delta_l_v=0;
         //delta_h_ref_v=0;
         //delta_l_ref_v=0;
         //diff_h_v=0;
         //diff_l_v=0;
         delta_h_ref=0;
         delta_l_ref=0;
         //delta_h_ref_corr=0;
         //delta_l_ref_corr=0;
         //level=0;
         //level_corr=0;
         //level_l_corr=0;
         for(i=0; i<32; i++) {
            shape_corr[i]=0;
            //shape_l_corr[i]=0;
            level_corr[i]=0;
            //level_adj[i]=0;
            //shape_h_corr_temp[i]=0;
            //shape_l_corr_temp[i]=0;
         }
         curr_h_temp=0;
         curr_h_avg=0;
         curr_l_temp=0;
         curr_l_avg=0;
         low_curr=0;
         volt_h_temp=0;
         volt_h_avg=0;
         volt_l_temp=0;
         volt_l_avg=0;
         volt_ref_temp=0;
         volt_ref_avg=0;
         volt_ref_delta=0;
         volt_ref_counter=0;
         volt_h_avg_counter=0;
         volt_l_avg_counter=0;
         //volt_l_avg_counter=0;
         stdby_i_temp=0;
         stdby_i_avg_counter=0;
         stdby_go_delay=0;
         stdby_delay=2047;
         high_t_blink=90;
         low_acc_delay=0;
         stdby_go_blink=60;
         delay_ms(10000);
         if(input(PIN_C4)) output_low(PIN_C5);
         clear_interrupt(int_timer0);
         set_timer0(60);
         enable_interrupts(GLOBAL);
      }
   }
}