数字式开关电源的PID控制

1、/*/*/*PID /*开关电源的数字化控制 */所用拓扑为Buck,单片机 msp430*/ 算法实现开关电源的恒流、恒压、恒功率功能 */ 糖 coffeeuestc*/*Part 1*/#include <> #include "" #include "" #include "" #include "" #include "" #include ""void main( void )WDTCTL = WDTPW + WDTHOLD; init_clk();i

2、nit_lcd();GUI_CU();init_ADC12();init_TA();init_TB();initKey();_EINT();while(1)KeyScan();if(Mode=0)PutDig(fP%10); ;PutDig(iU%10);PutDig(fU/10);PutDig(iI%10);PutDig(fI/10);PutDig(fP/10);处理电压 PWM*/*void deal_U()if(Uout>Us*100+25)|(Uout+25<100*Us) ;PutDig(fUs); /* 显示设置电流 */void DisplaySetI()unsign

3、ed char iIs,fIs;iIs = Is/10; fIs = Is%10;Set_cursor(0,3);PutcLCD('0');PutDig(iIs);PutcLCD('.');PutDig(fIs);/* 显示设置功率 */ void DisplaySetP()unsigned char iPs,fPs;iPs = Ps/10; fPs = Ps%10;Set_cursor(0,3);PutDig(iPs/10);PutDig(iPs%10);PutcLCD('.');PutDig(fPs); /* 键盘初始化 */void ini

4、tKey()KeyDIR &= (Inc + Dec + MOD + ADD + PLU);/* 键盘检测 */void KeyScan()if(KeyIN != 0x1f)Delay(100);if(KeyIN != 0x1f)unsigned char KeyTemp = KeyIN;while(KeyIN != 0x1f); / 等待按键松开 switch(KeyTemp)case 0x1e:if(Mode=0) Us+=1; else if(Mode=1) Is+=1; else Ps+=5;break; /+case 0x1d:if(Mode=0) Us-=1; else i

5、f(Mode=1) Is-=1; else Ps-=5;break; /-case 0x1b:Mode+;if(Mode>2)Mode=0;if(Mode=0) Us = 10;GUI_CU(); else if(Mode=1) Is = 10;GUI_CC(); else Ps = 10; GUI_CP();break; /modcase 0x17:if(Mode=0) Us+=5; else if(Mode=1) Is+=2; else Ps+=10;break; /+case 0x0f:if(Mode=0) Us-=5; else if(Mode=1) Is-=2; else Ps

6、-=10;break;/-#endif/*Part init Headfile*/#ifndef _init#define _init/* 初始化时钟 */ void init_clk()FLL_CTL0 |= XCAP18PF;FLL_CTL1 &= XT2OFF;/ Set load capacitance / Turn on XT2doIFG1 &= OFIFG;for (unsigned int i = 1000; i; i-); while (IFG1 & OFIFG); FLL_CTL1 = SELS;/ Clear oscillator fault fla

7、g/ Test osc fault flag/ Select SMCLK source as XT2CLK/* 初始化 AD,计算输出 */void init_ADC12()P6SEL = 0x03;/ Enable A/D channel inputsADC12CTL0 = ADC12ON + MSC + SHT0_8 + REFON + REF2_5V;/Turonn ADC12,set sampling time/ Use sampling timer 序列单ADC12CTL1 = SHP + ADC12SSEL_1 + CONSEQ_1; 次ADC12MCTL0 = INCH_0 +

8、SREF_1;ADC12MCTL1 = INCH_1 + SREF_1 + EOS;ADC12CTL0 |= ENC; /*初始化TA,采样周期void init_TA()TACTL = TASSEL_2 + TACLR;CCTL0 = CCIE;CCR0 = 800;TACTL |= MC_1;*/ sMCLK, clear TAR/ CCR0 interrupt enabled/ Start Timer_A in UP mode/* 初始化TB,驱动信号void init_TB()TBCTL |= TBSSEL_2 + TBCLR + MC_1 + ID_0;TBCCR0 = 400;TBCCTL2 = OUTMOD_7;TBCCR2 = 200;P2DIR |= BIT3;P2SEL |= BIT3; */ SCLK, Clear Tar/ PWM =