Question

1. Consider the CB amplifier in figure 1 and derive an expression for its bias current IC. Select a value for IC that guarantees a peak-peak output swing of at least 3 V and find the corresponding resistor values R1, R2, and RE.

RS lin ci IC 8 수 ANN + 1 오 vs © 10k Vin REŠ PT SR2 - HAI 2 | Figure 1: Common-base amplifier with finite source resistance and fixed resistive load.

Answer 1

Solution Sinu gives, so we wils assume ß & VA are not ß 0 VA 0 Peel B71, & Vo Blam Valcea au capacitors are Small signal equivalent of amplife 2 11 Re= 4.700 & lok. So Rolle= 3.2ka Do 30. lo 3.2% Total current is cost cez [c. V @ Vc: 1.5V, 220 lee list 469 4A

Tec 3 so Unra - 0-7v о. 64 онд Е- С. 469 ши) Cao Voo- " : - RE RE » Re: 56v 1 45 л ОЧО 9 R, - 3-1 Ел е, - 6-2en, Re: 11 -4чIел с 50 [ 2 469 usd