数字式开关电源的PID控制

1、/* 开关电源的数字化控制 */*所用拓扑为 Buck,单片机 msp430*/*PID 算法实现开关电源的恒流、恒压、恒功率功能 */* 糖 coffeeuestc*/*Part 1*/#include <msp430xG46x.h>#include "LCD12864.h"#include ""#include ""#include ""#include ""#include ""void main( void )WDTCTL = WDTPW + WDTHOL

2、D;init_clk();init_lcd();GUI_CU();init_ADC12();init_TA();init_TB();initKey();_EINT();while(1)KeyScan();if(Mode=0) / 恒压模式DisplaySetU();Delay(100);ADC();Delay(100);else if(Mode=1) / 恒流模式DisplaySetI();Delay(100);ADC();Delay(100);/ 恒功率模式elseDisplaySetP();Delay(100);ADC();Delay(100);/* Part 2 Headfile*/Pa

3、rt 2.1 LCD12864 Headfile#ifndef _LCD12864#define _LCD12864 #define LCD_CS BIT0#define LCD_SID BIT2#define LCD_CLK BIT4#define LCD_EN P3DIR#define LCD_CTRL P3OUTLCD_CTRL |= LCD_CS LCD_CTRL &= LCD_CS LCD_CTRL |= LCD_SID LCD_CTRL &= LCD_SID LCD_CTRL |= LCD_CLK LCD_CTRL &= LCD_CLK#define LCD

4、_CS_Set_high#define LCD_CS_Set_low#define LCD_SID_Set_high#define LCD_SID_Set_low#define LCD_CLK_Set_high #define LCD_CLK_Set_low#define LCD_delay 1void Write_Data(unsigned char byte ,unsigned char reffer);void Send_Byte(unsigned char byte);void ClearLCD(void);void Put_Array(unsigned char *data , un

5、signed char length ,unsigned char address);void Delay(unsigned char time) / 主时钟 1 微秒延时unsigned int i; i=0x08*time;for(; i; i-);/*/ 函数名称： Initial_LCD(void)/ 函数功能：启动初始化*/ void Initial_LCD(void)LCD_EN |= LCD_CS + LCD_SID + LCD_CLK;Write_Data (0x30,0); / 根本指令集 Delay(LCD_delay);Write_Data(0x30,0);Write_D

6、ata(0x0C,0);Delay(LCD_delay);Write_Data(0x01,0);/ 清屏Delay(LCD_delay);Write_Data(0x06,0);Delay(LCD_delay);/* 函数名称 ： Write_Data(unsigned char byte,unsigned char reffer) * 函数功能 ：发送指令或数据reffer 数据 1 指令 0* 输入变量 ： unsigned char byte unsigned char byte*/void Write_Data(unsigned char byte ,unsigned char reff

7、er)unsigned char temp,stemp; temp = byte;LCD_CS_Set_high; LCD_CLK_Set_low;if(reffer=1)/ 发送第一个字节Send_Byte(0xFA); elseSend_Byte(0xF8); stemp = (temp & 0xF0); Send_Byte(stemp); stemp = temp <<4; Send_Byte(stemp); LCD_CS_Set_low; /* 函数名称 ： Send_Byte(unsigned char byte)* 函数功能 ：发送一字节数据* 输入变量 ： u

8、nsigned char byte*/ void Send_Byte(unsigned char byte)unsigned char temp,i;temp = byte;for(i=0;i<8;i+) /send 8 timesif (temp&0x80)/send the highestLCD_SID_Set_high;elseLCD_SID_Set_low;temp = (temp<<1);LCD_CLK_Set_low;LCD_CLK_Set_high;Delay(LCD_delay);*函数名称：Put_Array ( unsigned char data

9、, unsigned char length,unsigned char address )* 函数功能 :在 LCD 上显示一个数组*输入变量：unsigned char data unsigned char length unsigned char address*/ void Put_Array(unsigned char *data , unsigned char length ,unsigned char address) if(address!=0)Write_Data(address,0);for (unsigned char i=0;i<length;i+)Write_D

10、ata(datai,1);/* 函数名称： ClearLCD(void)* 函数功能：清屏*/void ClearLCD(void)Write_Data(0x01,0);/*函数名称*功能描述* 输 入Set_cursor设置光标的位置为CurY行,CurX列CurX=position(0:7) CurY=line(0:3)*/void Set_cursor(unsigned char CurY, unsigned char CurX) switch(CurY) case 0:case 1:case 2:case 3:Write_Data(0x80+CurX,0); break;/ 写入第一行

11、Write_Data(0x90+CurX,0); break;/ 写入第二行Write_Data(0x88+CurX,0); break;/ 写入第三行Write_Data(0x98+CurX,0);break;/ 写入第四行CurX 列的地址CurX 列的地址CurX 列的地址CurX 列的地址default: break;/* 函数名称： PutInt(unsigned int num)* 函数功能：显示十进制数*void PutInt(unsigned int num)unsigned int snum;unsigned char temp12=0, temp112 =0;unsigne

12、d char i = 0,n = 0 ;snum = num;if(snum =0 )temp0 = '0'i+ ;while(num!=0)tempi = num%10+0x30;num = num/10;i+ ;n = i;for(i=0;i<n; i+)temp1i = tempn -1-i;Put_Array(temp1,n,0);void PutDig(unsigned char num)unsigned char snum;snum = num + 0x30;Write_Data(snum,1); /* 函数名称 : PutcLCD()*功能描述：LCD写ch

13、ar* 输 入 :LCD_Char*/ void PutcLCD( unsigned char LCD_Char ) Write_Data(LCD_Char,1);/* 函数名称 ：PutsLCD()*功能描述：LCD写入RAM字符串* 输 入: 字符指针 Str */ void PutsLCD(const char *Str) Str 所指向的字符int Str_Temp;Str_Temp=*Str;/ Str_Temp 所赋的值是while(Str_Temp!=0x00)/ 字符串还没有结束Write_Data(Str_Temp,1);Str+;Str_Temp=*Str;/*函数名： C

14、lrRam(void) 函数功能：清整个 GDRAM 空间 */ void ClrRam() unsigned char x,y ; for(y=0;y<64;y+) for(x=0;x<16;x+) Write_Data(0x34,0); Write_Data(y+0x80,0);/ 行地址 Write_Data(x+0x80,0);/ 列地址 Write_Data(0x30,0); Write_Data(0x00,1); Write_Data(0x00,1); /* 函数名： ShowAll函数说明：显示一幅 128*64 的图画 传入参数：图形指针 *img */ void

15、ShowAll(unsigned char *pPicture) unsigned char i,j,k;Write_Data(0x36,0);for(i=0;i<2;i+) / 分上下两屏写for(j=0;j<32;j+) / 行Write_Data(0x80+j,0); / 写 X 坐标第几行上写if(i=0) / 写 Y 坐标，判断哪一屏 Write_Data(0x80,0);elseWrite_Data(0x88,0);for(k=0;k<16;k+) / 写一整行数据 16 个字节，合八个字符 Write_Data(*pPicture+,1);/Write_Data

16、(0x36,0);#endif/*Part 2.2 Table Headfile*/extern unsigned char img= 0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x07,0xFF,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

17、0x00,0x00, 0x00,0x00,0x1F,0xFF,0xFF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x7F,0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x01,0xFF,0xFF,0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x07,0xFE,0x7F,0xFF,0xFF,0xE0,0x00,0x00,0

18、x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x0F,0xFF,0x7F,0xFE,0xDF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x1F,0xFF,0x7F,0xFF,0xBF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x3F,0xFB,0xFF,0xF9,0x7F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x7F,0xFB,0xFF,0x

19、FF,0x3F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x01,0xFF,0xFF,0xC0,0x03,0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x03,0xFF,0xFE,0x00,0x00,0x7F,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

20、, 0x03,0xFF,0xF8,0x00,0x00,0x1F,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x07,0xFF,0xF0,0x00,0x00,0x07,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x0F,0x7F,0xC0,0x00,0x00,0x03,0xFE,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x0F,0xF7,0x80,0x00,0x00,0x01,0xF5,0xF0,0x00,0x00,0x00,

21、0x00,0x00,0x00,0x00,0x00, 0x1F,0xFB,0x00,0x00,0x00,0x00,0xE3,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x1F,0xFF,0x03,0xF8,0x07,0xF8,0x7F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x3F,0xFE,0x0F,0xFE,0x1F,0xFC,0x7F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x3F,0xFC,0x1C,0x0F,0x7C,0x0C,0

22、x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x3F,0xFC,0x1C,0x03,0xF0,0x06,0x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0xF8,0x08,0x01,0xE0,0x0E,0x1F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0xF8,0x08,0x07,0xF0,0x0E,0x1F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0x

23、F0,0x08,0x0F,0x38,0x0C,0x0F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0xF0,0x0C,0x1E,0x1E,0x0C,0x0F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFF,0xF0,0x04,0x7C,0x0E,0x1C,0x0F,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFF,0xF0,0x05,0xF8,0x00,0x00,0x07,0xFF,0x00,0x00,0x00,0x00,0x00

24、,0x00,0x00,0x00, 0xFF,0xE3,0xBF,0x9C,0xFF,0xEF,0x07,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFF,0xE3,0xBB,0x6D,0xFF,0xFF,0x87,0xDF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xEF,0xE3,0xBE,0x6F,0xF3,0xBB,0x87,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xF0,0xE3,0xBE,0xFF,0xFB,0xB8,0x07,0xCF,

25、0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFE,0xE3,0xFB,0xFC,0x7B,0x9F,0x87,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFF,0xE1,0xF3,0x1D,0xF3,0x9F,0x07,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFF,0xE0,0x07,0xF8,0x07,0x0C,0x07,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0xFF,0xF0,0x06,0

26、xF8,0x0F,0x18,0x0F,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0xF0,0x0C,0x1C,0x1E,0x0C,0x0F,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0xF0,0x0C,0x0E,0x3C,0x0C,0x0F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x7F,0xF8,0x0C,0x07,0x78,0x0C,0x0F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x0

27、0,0x00, 0x7F,0xF8,0x18,0x03,0xF0,0x04,0x1F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x3F,0xF8,0x18,0x03,0xE0,0x04,0x1F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x3F,0xFC,0x08,0x0F,0xF8,0x04,0x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x3F,0xFE,0x0C,0x3F,0x3E,0x08,0x3F,0xFC,0x00,0x00

28、,0x00,0x00,0x00,0x00,0x00,0x00, 0x1F,0xFE,0x07,0xFC,0x07,0xF0,0x7F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x1F,0xFF,0x03,0xE0,0x00,0xA0,0xFF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x0F,0xFF,0x80,0x00,0x00,0x01,0xFF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x0F,0xFF,0xC0,0x00,0x00,

29、0x03,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x07,0xFF,0xE0,0x00,0x00,0x07,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x07,0xFF,0xF8,0x00,0x00,0x0F,0xFF,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x03,0xFF,0xFC,0x00,0x00,0x3F,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0

30、x01,0xFF,0xFF,0x00,0x00,0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0xFF,0xFF,0xE0,0x07,0xFF,0xFF,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x7F,0xFF,0xFF,0xFF,0xFF,0xFE,0x00,0x00,0x00,0x00,0x0

31、0,0x00,0x00,0x00,0x00, 0x00,0x3F,0xFF,0xFF,0xFF,0x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x0F,0xFF,0xDD,0xC6,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x07,0xFF,0xD6,0xDC,0x7F,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x03,0xFF,0xB9,0xBD,0xBF,0xC0

32、,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0xFF,0x7B,0xCD,0xBF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x3F,0xF7,0xEE,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x0F,0xFF,0x1F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0

33、x03,0xFF,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00;Part 2.3 GUI Headfile#ifndef _GUI #define _GUI/*开机界面 */void init_lcd()Initial_LCD();Set_cursor(0,4);PutsLCD("SwPower");Set_cursor(1,4);PutsLC

34、D(" 糖 coffee");Set_cursor(2,4);PutsLCD(" 糖 coffee");Set_cursor(3,4);PutsLCD(" 糖 coffee");ShowAll(img);while(P1IN&0x1f)=0x1f);/*Initial_LCD();Set_cursor(0,0);PutsLCD("Set I:01.00 A");Set_cursor(1,0);PutsLCD("Out U: V");Set_cursor(2,0);PutsLCD(&quo

35、t;Out I:A");Set_cursor(3,0);PutsLCD("Out P:W");*/*恒流源界面 */void GUI_CC()Initial_LCD();Set_cursor(0,0);PutsLCD("Set I:01.00 A");Set_cursor(1,0);PutsLCD("Out U: V");Set_cursor(2,0);PutsLCD("Out I:A");Set_cursor(3,0);PutsLCD("Out P:W");/*恒压源界面 */voi

36、d GUI_CU()Initial_LCD();Set_cursor(0,0);PutsLCD("Set U:01.00 V");Set_cursor(1,0);PutsLCD("Out U: V");Set_cursor(2,0);PutsLCD("Out I:A");Set_cursor(3,0);PutsLCD("Out P:W");/*恒功率界面 */void GUI_CP()Initial_LCD();Set_cursor(0,0);PutsLCD("Set P:01.00 W");S

37、et_cursor(1,0);PutsLCD("Out U: V");Set_cursor(2,0);PutsLCD("Out I:A");Set_cursor(3,0);PutsLCD("Out P:W"); #endifPart 2.4 deal Headfile#ifndef _deal #define _dealunsigned int Us = 10; unsigned int Is = 10;unsigned int Ps = 10;/ 设置时扩大 10 倍,默认 / 设置时扩大 10 倍,默认 /设置时扩大 10 倍,默

38、认float Kru = 0.25; float Kri = 1.3;/ 分压系数 5/20/ 放大系数约 0.05*25unsigned int Uo6; unsigned int Io6; long unsigned int Umem; unsigned int Uout; long unsigned int Imem; unsigned int Iout; unsigned int Pout;signed int iError,lastError, iIncpid;float Kp = 0.05;float Ki = 0.01;unsigned int PWM = 50;/*求数组的平均

39、数 */unsigned char Mode = 0;unsigned int mean(unsigned int a) unsigned int dat = 0; unsigned int max = a0; unsigned int min = a0; for(unsigned int j = 0; j < 6; j+) if(max < aj) max = aj; if(min > aj) min = aj;for (unsigned int i = 0; i < 6; i+) dat = dat + ai;dat = (dat - max - min)>&

40、gt;2; return dat;*显示输出电压 */void displayU()unsigned char iU,fU;iU = Uout/100; fU = Uout%100;Set_cursor(1,3);PutcLCD('0');PutDig(iU/10);PutcLCD('.');PutDig(iU%10);PutDig(fU/10);/PutDig(fU%10);*显示输出电流 */void displayI()unsigned char iI,fI;iI = Iout/100; fI = Iout%100;Set_cursor(2,3);Putc

41、LCD('0');PutDig(iI/10);PutcLCD('.');PutDig(iI%10);PutDig(fI/10);/PutDig(fI%10);*显示输出功率 */void displayP()unsigned char iP,fP;iP = Pout/100; fP = Pout%100;Set_cursor(3,3);PutDig(iP/10);PutDig(iP%10);PutcLCD('.');PutDig(fP/10);PutDig(fP%10); *处理电压 PWM*/void deal_U()if(Uout>Us

42、*100+25)|(Uout+25<100*Us)/ 精度 25mV/ 当前误差iError = Us*100 - Uout;iIncpid = (signed int)(Kp*iError + Ki*lastError); PWM = PWM + iIncpid;if(PWM<20)PWM = 20;else if(PWM>380)PWM = 380;TBCCR2 = PWM; void deal_I()*处理电流 PWM*/if(Iout>Is*100+5)|(Iout<Is*100+15) / 精度 iError = Is*100 - Iout;iIncpi

43、d = (signed int)(Kp*iError + Ki*lastError);PWM = PWM + iIncpid;if(PWM<20)PWM = 20; else if(PWM>380)PWM = 380; TBCCR2 = PWM;处理功率 PWM*/* void deal_P()/ 输出功率大于设定功率if(Pout>Ps*10+3)|(10*Ps>Pout+2)iError = Ps*10 - Pout;iIncpid = (signed int)(Kp*iError + Ki*lastError); PWM = PWM + iIncpid;if(PW

44、M<20)PWM = 20;if(PWM>380)PWM = 380;TBCCR2 = PWM;*计算输出电压电流功率 */void ADC()static unsigned int index = 0;Uoindex = ADC12MEM0;Ioindex = ADC12MEM1;index+;if(index = 6)Umem = mean(Uo); Imem = mean(Io);Uout = (unsigned int)(2500*4.1*Umem/4096); / 放大 1000 倍显示Iout = (unsigned int)(2500*Imem/(4096*1.3);

45、 / 放大 1000 倍显示Pout = (unsigned int)(Uout/100.0)*(Iout/100.0);/放大 100 倍显示displayU();displayI();displayP();if(Mode=0) deal_U();else if(Mode=1) deal_I();elsedeal_P();index = 0;#endifPart 2.5 独立键盘 Headfile#ifndef _IndependentKey #define _IndependentKey #define KeyDIR P1DIR#define KeyIN (P1IN&0x1f) #

46、define Inc BIT0#define Dec BIT1#define MODBIT2#define ADDBIT3#define PLUBIT4*显示设置电压 */void DisplaySetU()unsigned char iUs,fUs; iUs = Us/10; fUs = Us%10;Set_cursor(0,3);PutDig(iUs/10);PutDig(iUs%10);PutcLCD('.');PutDig(fUs); *显示设置电流 */void DisplaySetI()unsigned char iIs,fIs; iIs = Is/10; fIs

47、= 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 initKey()KeyDIR &= (Inc + Dec + MOD + ADD + PLU); /*键盘检测 */void KeyScan() if(KeyIN != 0x1f)Delay(100);if(KeyIN != 0x1f)unsigned char KeyTemp = KeyI