过流保护计算-VS.zip_QUU_运算放大器放大计算（过流保护）

// ConsoleApplication1.cpp: 定义控制台应用程序的入口点。 // #include "stdafx.h" typedef struct { double load_current; double R_groud; double R_votagle; double V_gain; double R_total; double V_ref; double Gain; double R_point; double I_protect; }calc_value; calc_value Calc; //创建实例对象 void calc(void); //函数声明 void calc_f2(); unsigned char mode = 1; int main() { printf("*******************************过流电压输出计算********************************\n\n"); Calc.load_current = 0.0; Calc.R_groud = 0.0; Calc.R_votagle = 0.0; Calc.V_gain = 0.0; Calc.R_total = 0.0; Calc.V_ref = 0.0; Calc.Gain = 0.0; Calc.R_point = 0.0; Calc.I_protect = 0.0; bool end = true; while (end) //循环计算 { printf("请选择计算模式（1.计算偏置 2.计算比较电压）: "); scanf_s("%d", &mode); if(mode ==1)calc_f2(); else calc(); } return 0; } void calc(void) { unsigned int i, num = 100; printf("1.请输入采集电阻(mΩ): "); scanf_s("%lf", &Calc.R_point); printf("2.请输入保护电流(A): "); scanf_s("%lf", &Calc.I_protect); printf("3.请输入放大倍数(倍): "); scanf_s("%lf", &Calc.Gain); printf("4.请输入偏置电压(V): "); scanf_s("%lf", &Calc.V_ref); while (Calc.V_ref > 4.5 || Calc.V_ref <0) { printf("**********************************Warning!*************************************\n"); printf("************************输入偏置电压过大或格式不对，请重新输入*****************\n"); printf("4.请输入偏置电压(V): "); scanf_s("%lf", &Calc.V_ref); } Calc.V_gain = ((Calc.R_point / 1000.0)*Calc.I_protect)*Calc.Gain + Calc.V_ref; printf(" 输出比较电压为：Vcompare=%0.2fV\n\n", Calc.V_gain); if (Calc.V_gain > 5) { printf("**********************************Warning!*************************************\n"); printf("************************输入放大倍数过大或者偏置电压选取过大！*****************\n"); num = 0; } else { num = 100; Calc.load_current = 0; } printf("*******************************参数计算结果输出********************************\n"); if (num == 0) printf(" 为空！ \n"); for (i = 0; i<num; i++) { Calc.load_current = Calc.load_current + 0.01; printf("load_current=%0.2fmA ", Calc.load_current); Calc.R_total = Calc.R_groud + Calc.R_votagle; Calc.R_groud = Calc.V_gain / Calc.load_current; Calc.R_votagle = (5 - Calc.V_gain) / Calc.load_current; printf("R_groud=%0.2fk ", Calc.R_groud); printf("R_votagle=%0.2fk \n", Calc.R_votagle); } } void calc_f2(void) { double R1 = 2, R2 = 0.00,Gain=0.00,Vref=0.00,Cur=0.00;//Gain===Rf unsigned int i; printf("请输入保护电流："); scanf_s("%lf", &Cur); printf("请输入放大倍数："); scanf_s("%lf",&Gain); for (i = 0; i < 500; i++) { R1 += 0.1; R2 = (Gain*R1)/(R1-Gain); Vref = (5 * R2) / (R1+R2); printf("偏置电压为：Vref=%0.2fV ", Vref); printf("R_votagle=%0.2fk ", R1); printf("R_groud=%0.2fk ", R2); printf("R_gain=%0.4fV\n", Vref+ ((Cur*0.01)*Gain)); } }