[FIDOCAD]
MC 95 50 1 0 ey_libraries.pasres0
MC 115 50 1 0 ey_libraries.pasres0
MC 135 50 1 0 ey_libraries.pasres0
MC 155 50 1 0 ey_libraries.pasres0
MC 155 65 1 0 ey_libraries.pasres0
MC 135 65 1 0 ey_libraries.pasres0
MC 115 65 1 0 ey_libraries.pasres0
MC 95 65 1 0 ey_libraries.pasres0
MC 100 40 0 0 ey_libraries.pasres0
MC 120 40 0 0 ey_libraries.pasres0
MC 140 40 0 0 ey_libraries.pasres0
MC 80 65 1 0 ey_libraries.pasres0
MC 80 50 1 0 ey_libraries.pasres0
LI 80 45 80 40 0
LI 80 40 95 40 0
LI 95 40 95 45 0
LI 110 40 115 40 0
LI 130 40 135 40 0
LI 115 45 115 40 0
LI 135 45 135 40 0
LI 155 45 155 40 0
LI 155 40 150 40 0
MC 80 75 0 0 045
LI 155 40 180 40 0
SA 95 75 0
SA 115 75 0
SA 135 75 0
SA 155 75 0
TY 95 80 4 3 0 0 0 * P0
TY 115 80 4 3 0 0 0 * P1
TY 135 80 4 3 0 0 0 * P2
TY 155 80 4 3 0 0 0 * P3
SA 170 40 0
TY 155 30 4 3 0 0 0 * Out
MC 185 40 0 0 300
MC 200 65 1 0 ey_libraries.pasres0
MC 200 15 1 0 ey_libraries.pasres0
MC 180 15 1 0 ey_libraries.pasres0
LI 165 85 215 85 0
LI 160 10 220 10 0
LI 200 25 200 30 0
LI 200 30 220 30 0
LI 200 50 200 60 0
LI 180 25 180 40 0
LI 180 40 185 40 0
SA 180 10 0
SA 200 10 0
SA 200 30 0
SA 200 85 0
SA 180 40 0
TY 170 15 4 3 0 0 0 * Rb
TY 205 15 4 3 0 0 0 * Rc
TY 205 65 4 3 0 0 0 * Re
LI 225 80 225 35 0
FCJ 2 0 3 2 1 1
TY 230 60 4 3 0 0 0 * Vu
TY 230 90 4 3 0 0 0 * 
TY 165 5 4 3 0 0 0 * Valim +12 V
RV 90 75 165 100 0
LI 200 75 200 85 0
TY 100 90 4 3 0 0 0 * Valim micro +5 V
LI 170 80 170 45 0
FCJ 2 0 3 2 1 1
TY 175 65 4 3 0 0 0 * Vi
TY 175 95 4 3 0 0 0 * 
TY 70 110 4 3 0 0 0 * Vi varia fra 0 e 5 V, valore medio 2,5 V
TY 70 130 4 3 0 0 0 * Rc =  (12 V-8V) / 2 mA = 4 kohm, trascurando la Vre
TY 55 30 4 3 0 0 0 * Resistori  rete ladder da 10 k
TY 70 120 4 3 0 0 0 * con v1 = 2,5 V imponiamo Vu = 8V e Ic = 2 mA
TY 70 125 4 3 0 0 0 * Re =  (2,5 -0,6V)/2 = 820 ohm supponendo Ib = 0
TY 70 135 4 3 0 0 0 * Con i valori di Rc e Re calcolati viene un guadagno max di
TY 65 140 4 3 0 0 0 *  circa Rc/Re = 4000/820 = 5 (ipotizzando Hfe infinito
TY 70 150 4 3 0 0 0 * Rb serve ad alzare di 0,6 V la Vb
TY 70 155 4 3 0 0 0 * Rb =  ( 12/0,6)x 10k = 200 k