EEE4306_QUIZ_2_2010_Summer_Solution

# EEE4306_QUIZ_2_2010_Summer_Solution - Name UFID EEE 4306...

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Unformatted text preview: Name: UFID EEE 4306 QUIZ II, 100 Points 51/ 60 Minutes. Open Note, Open Book, 6/14/10 BJT Parameters: VBE_ON E 0.7V B = 100, VA = IOOOOOV. NMOS Parameters: VT = I V, k = l mA/V2 = VzunCox,(W/L) , )V = 0.00001 Circuit Element Values, RF = 1 [(0, R; = 200 Q, R5011rce = 1.2 KQ, R5; = 1K (2 R5 = 2.5 KS2 and R54 = 5 KS). Please perform the feedback analysis for MIDBAND CIRCUIT OPERATION. Assume the biasing of the circuit works correctly. VSUPPLY = 12V M RC éRc I R93 Q4 VOUt2 RE Vout1 R54 VNEG_SUPPLY = ‘5V Feedback Topology: (5 points). Draw a single connection between Point X to either Point A or Point B so that the circuit has negative feedback. Biasing Calculation: (20 points): Find the numerical values for the circuit elements below. Pick, RC so that 103 = ImA (the current through M3). Pick R133 so that Ic4 = ImA. Assume that no significant DC current ﬂows through RF since DC Voutl = DC V32 = DC V31 = 0V under the condition of negative feedback. Assume the NMOS transistors are in saturation operation and the NPNs are in forward active RczﬂJD—A VRC .. N “ til: U ;\/ +E%;lmpl~ +H/ R133 3 12. 655 1, wk, in, AA) 2 l/ 4! VI? " [473” Var; " 124?, :2\/ ALMA 5’ " ,— 4, I; .— I», 3 awn/w, Dar—0v Veg ; 12v~ 2V : IZV j0.7v pun/1a,;qu _ aH/ '; 3331/ Ia: [git—é ;al§m4 Qﬂ , 3/311; axe/L W 2: [CZ/UL 5/ [M ; ﬁnk; Find the open loop gain T (60 points) Find the closed loop gain AC“ and the output resistance Rout] at Vout,(15 points). A We W 5N :33: Q 24’” 2;": [+7— 470§JL M6 _. Him ’ ...
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