L6-1 5.9.3 CE Low Frequency Response Excercises - 5.52, P5.163, P5.164, P5.161 L5_1

# L6-1 5.9.3 CE Low Frequency Response Excercises - 5.52, P5.163, P5.164, P5.161 L5_1

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Unformatted text preview: 5.9 Low Frequency Response of CE Lecture 6 Friday Jan. 22, 2010 Zubair Rehman 2 Exercise 5.52 A common-emitter amplifier has C C1 = C C2 = C E = 1 F, R B = 100 k , R sig = 5 k , g m = 40 mA/V, r = 2.5 k, R C = 8 k and R L = 5 k. = 40m *2.5k = 100 Assuming that the three capacitors do not interact. Find f P1 , f P2 , and f P2 and estimate f L . Figure 5.71 a 3 Exercise 5.52 Solution Hz f s rad ms F k C R k k k k k k r R R R F P P C S P B sig S 4 . 21 2 / 134 44 . 7 1 1 * 44 . 7 1 1 44 . 7 44 . 2 5 5 . 2 || 100 5 ) || ( 1 1 1 1 1 1 = = = = = = = + = + = + = = = 1 C C1 C1 f L = f P1 + f P2 + f P3 = 21.4 + 2210 + 12.2 = 2244 Hz = 2.24 kHz kHz f s krad s C R s F C R k k k R R r R F P P s P S sig B S 21 . 2 2 / / 91 . 13 9 . 71 1 2 1 9 . 71 1 * 9 . 71 2 9 . 71 101 26 . 7 1 100 100 5 . 2 || 2 2 2 2 2 2 = = = = = = = = = + + = 1 + + = = = 1 C C2 E Hz f s rad ms C R ms F k C R k k k R R R F C C P P C S P C S C L S C 2 . 12...
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## L6-1 5.9.3 CE Low Frequency Response Excercises - 5.52, P5.163, P5.164, P5.161 L5_1

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