Question

Can anyone explain how to find the value of coupling caps in a common base amplifier given the 3dB breakpoints?

find Lin, Loot, Los fcb=8 kHz fio = 1 KHZ ß=100 RBI Rc 2004 4.5kn Cout 350mA 35 MA { R₂=28on 1 M35.35mA Lin RB2 IRE {1.0975kn {700 Rg = 150

Answer 1

1 Given :- dcb = 8 kta dio = 1kHta ß = coo şuiskn. Reş 3 RC 200N cout & arma 35op F & 4 3 5.35mA I for C.B Amplifier i $ 1.0975KN given 701 Ren & Rout are -Tity Canva & Rc & R IR s VG Yama L pout ar Applying test sigual at emitter we get Rin Rin - Illee Wil til Applying test 1 signal at " ! Collector) we ger Roura Rc i Rin= I like Rout= RC and igm 2 z 3rmal = 1.345' VaR / 26 mr CS Scanned with CamScanner

é 74.28 N / 1.24 Ya = 74.200 ch while Calculating расхос, 2s value of cb, Cin, cour are soc. ? •Cuiskall 1.0975 kn 1174.281) Resis lance Och - 2xRcb Card 27 CRD (1.074261)|| 74.281 у 1 RE 69.471 усь across Cb s udendo que x 69.47 2 * T * 8 642 x 69.47 142 bing I Couts while calculating value of Cout, Cin, cp are sol R across cour is - Rout SR - 2800 Rc = 200N de gradio (Retke). 20.334f xЛ x KH3 x 80 м. CS Scanned with CamScanner

Cour 3 0.334f Cin! are S.G valu While calculation value of con, Cour, Cb are sic P R across con Cins avastix Ceinte's) Roth Ren § RS I lire a alon lin > - gm dx ax lleet3X 18.43 § 0.7411 on I en > cool ef Rin = 0.13N CSscanned with CamScanner