EE251 Formula Sheet Usik edit for test #2

# EE251 Formula Sheet Usik edit for test #2 - EE251...

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EE251 Formulas #2 Formulas β DC =h FE = I C ÷ I B I B = I E ÷ (β DC + 1) α DC = I C ÷ I E = β DC ÷ ( β DC + 1) β DC = α DC ÷ (1 – α DC ) P D = V CE × I C I C(sat) = V CC ÷ (R C + R E ) Av = Vout ÷ Vin β ac = h fe = I c ÷ I b h ie = R in(base) = β ac (r′ e + R E ) = V b ÷ I b BASE BIAS I B = (V BB - V BE ) ÷ R B V CE = V CC - I C × R C V C = V CC - β DC ×I B × R C EMITTER BIAS I B = (V BB - V BE ) ÷ (R B + β dc × R E ) V CE = V CC - I C × (R C +R E ) VOLTAGE DIVIDER BIAS (NPN) R IN(base) = β dc × R E V B = (R 2 // R IN(base) ) ÷ (R 1 + R 2 //R IN(base) ) × V CC V B = R 2 ÷ (R 1 + R 2 ) × V CC V E = V B - 0.7V I C = I E = V E / R E V CE = V CC - I C × (R C +R E ) V C = V CC - I C × R C COLLECTOR-FEEDBACK BIAS I B = (V C - V BE ) ÷ R B I C = (V CC - V BE ) ÷ (R C + R E + (R B ÷ β dc )) COMMON EMITTER r′ e = 25 mV ÷
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## This note was uploaded on 03/21/2012 for the course COMP EE367 taught by Professor Petkov during the Winter '09 term at Mohawk College.

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