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你是看中这种正弦波逆变器驱动模块
- /*
- PIC16F716逆变升压器芯片16f716三模式驱动模块
- pic16f716三模式单片机PIC16F716芯片模块逆变升压器机头维修驱动
- pic16f716 inverter circuit 正弦波逆变器
- Apart from using SG3524 or PIC16f716 micro-controller, other micro-controllers can be use. Study and follow the code below and use it. The code is for H- bridge inverter with pic in bult PWM controllers for generating sine wave inverter
- */
- // high frequency inverter code
- #ifndef _XTAL_FREQ
- #define _XTAL_FREQ 16000000
- #define __delay_us(x) _delay((unsigned long)((x)*(_XTAL_FREQ/4000000.0)))
- #define __delay_ms(x) _delay((unsigned long)((x)*(_XTAL_FREQ/4000.0)))
- #endif
- #include
- __CONFIG(PROTECT&
- HS& //INTIO& //internal
- OSC_8MHZ&
- WDTDIS&
- MCLRDIS&
- PWRTEN &
- BOREN &
- 0x3FFF);
- unsigned char sin_table[32] = {0, 25, 49, 73, 96, 118, 137,
- 159, 177, 193, 208, 220, 231, 239, 245, 249, 250, 249, 245,
- 239, 231, 220, 208, 193, 177, 159, 137, 118, 96, 73, 49, 25};
- unsigned char index;
- unsigned char soft_start_sh; //soft start shift count.
- unsigned char soft_start_td; //soft start time delay.
- unsigned int DUTY_CYCLE; //delay.
- bit soft_start, wave_flag = 0;
- void interrupt siva() {
- if (TMR2IF == 1) {
- TMR2IF = 0;
- CCPR1L = 200; //sin_table[index];
- // ++index;
- if(index == 32)
- { index = 0;
- wave_flag = ~wave_flag;
- if( wave_flag) CCP1CON = 0x8D; //half bridge control
- else CCP1CON = 0x8C; //half bridge control
- }
- }
- }
- void main() {
- ANSEL = 0; //Disable ADC
- CM1CON0 = 0; //Disable Comparator
- CM2CON0 = 0; //Disable Comparator
- VRCON = 0;
- PR2 = 249; //16 khz@16MHZ
- TRISC = 0x3F;
- CCP1CON = 0x00;
- ECCPAS = 0x40;
- PWM1CON = 0x94; //5ussec
- PRSEN = 1;
- CCP1CON = 0x8D; //half bridge control
- wave_flag = 0;
- __delay_ms(500);
- TMR2IF = 0;
- T2CON = 0x24; //TMR2 on, prescaler and postscaler 1:5
- while (TMR2IF == 0);
- TMR2IF = 0;
- TRISC = 0x03; //set pwm pins as o/p
- TMR2IE = 1;
- GIE = 1;
- PEIE = 1;
- RC2 = 0;
- RC3 = 0;
- while (1) {
- if (ECCPASE) index = 0;
- }
- }
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