Quiz solution

Quiz solution - 6 ru'n{ros" x fr*r lo V,s,r s ves-z>...

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Dalhousie University, Department of Electrical and computer Engineering ECED3201: lntroduction to Electronics Fall2009- Exam Revision Quiz Problem 1 We wish to analyze the amplifier shown in Fig. 1. k'"(W /L) =0.5 mA/V2 ,Vt=2V, ro= *. a. Find the dc current lo. b. Calculate the small signal gaitr Ay=volv,. Problem 2 Considerthe circuit shown in Fig. 2. +6V Assume the transistor Mr has b. Fig.2 Determined the voltages at the nodes Br, Cu Er, Bz, Cz, Ez and the currents lr', leb lct,lE2,lez, ?nd lcz. Assume Vrer= VEez = 0.7V and B1=Br=100, Va=op' Find the maximum value of Rcz that permits the operating

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9J, (o) Dc - S^"Lff-" t- d^ U T"s vpo Lr ; V* * 4p ro + Rc f* .+%s f R, ( Ao* er r. "T' \ [.r r. dnts*V6r =,^, & " t-oi.Y\$fr O t 6lf* u' Itr o.CIoo r'f H, ;; a#i*"d*+ ; s" . 4 nn""q (unn *' v* )t 6

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This note was uploaded on 02/12/2011 for the course ECED 3201 taught by Professor Al-sankary during the Spring '11 term at Dalhousie.

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Quiz solution - 6 ru'n{ros" x fr*r lo V,s,r s ves-z>...

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