The load line and Q-point of the circuit in Figure Q3(c)(i) isshown in Figure Q3(c)(ii). For the transistor, β = 120.
(i) Find RE, R1 and R2 such that the circuit is bias stable. Thegeneral rule for the circuit is considered bias stable is when RTH≅ 0.1(1+β) RE. (C3, SP4) [10 marks]
(ii) Determine the values of A and B in Figure Q3(c)(ii).
Vcc=18 V ww ww R₁ > R₂ Rc = 2 kΩ RE Figure Q3(c)(i): BJT Circuit Ic (mA) A 4.8 0 Q-point 6 B Figure Q3(c)(ii): I-V Curve VCE (V)
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