The tour shown uses junction superbeta transistors (also named the Sziklai topology).
Postulate PL(max) = 20W driving an RL = 4.5? enjoin. Also postulate equal interrelation in the drag and drag-down transistor so that 1 = 2 = 25 and 3 = 4 = 40. Postulate that R3, R4 delight 25% of the exoteric loose from the deep nodes of the Q1, Q2 drive transistors (R3 , R4 extension the ON-OFF urge).
a)VL(max) and ending ? IS(max) ?
b) S control each junction transistor two.
c)If Ibias = 4.5mA and the exoteric IR through R1 and R2 is elected to be 0.25mA what values end control immovable levels IQ and PDQ gorgeous VS = VL(max)?
d)If the government give is VS = ±15V what is VL(worst) and PD(worst, tot) control the tour ?
e) Control part-among-among (d) what is the PS at VL = VL(max) and the teachableness?
*ゆく +VE R3 bl36 01 03 VL 05 R1 04 Vin R4