Algorithm 1. Scaling of Input Error and Fuzzification (Negative Small (NS) MF)
1.	#Scale Input Error to −20 and 20.
2.	if (err_cur < −20)
3.	err_cur1 = −20;
4.	else if (err_cur > 20)
5.	err_cur1 = 20;
6.	else
7.	err_cur1 = err_cur;
8.	#Convert Input Error to Digital Scale Format (0–255). Refer Equations (3)–(6)
9.	err_scl = (((err_cur1 + 20) * 255)/40);
10.	#Declare NS range of error
11.	a=8’d0; b=8’d63; c=8’d127;
12.	#Calculate the Error MF for NS. Refer Equations (14) and (15)
13.	if ((err_scl <= a) || (err_scl >= c))
14.	e_NS = 0;
15.	else if (err_scl > a && err_scl < b)
16.	e_NS = (255/(b-0) * (err_scl - a));
17.	else if (err_scl > b2 && err_scl < c)
18.	e_NS = (255/(c-b) * (c - err_scl));
19.	else
20.	e_NS = 255;