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Lecture_4 - Bypass Capacitor Effects on Amplifier Frequency...

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EE 311 Lecture 4 Coupling Capacitor Design Example Choose C C so that the amplifier’s response is 1 dB at 20 Hz (w.r.t. the midband gain) : | A v | dB f (Hz) Lecture 4 Page 1
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EE 311 Lecture 4 Load Capacitor Analysis Example Find the upper corner frequency, f H , if R D = 10 k Ω , R L = 20 k Ω , and C L = 10 pF: Lecture 4 Page 2
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EE 311 Lecture 4 Example with Both Coupling and Load Capacitors Find the two corner frequencies, f L and f H . R i = 53.1 k Ω . Check results with Multisim. Fig. 7.22 Lecture 4 Page 3
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EE 311 Lecture 4
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Unformatted text preview: Bypass Capacitor Effects on Amplifier Frequency Response Solve for the voltage gain, V o / V i : Lecture 4 Page 4 EE 311 Lecture 4 Bypass Capacitor Effects (Cont.) In terms of time constants: Solve for the gain at DC, at ∞, τ A , τ B , f A , f B : Lecture 4 Page 5 EE 311 Lecture 4 Bypass Capacitor Example Sketch the Voltage Gain vs. Frequency: 4 k W 2 k W 0.5 k W +5 V 5 V 1 m F 1.06 mA b = 100 Fig. 7.23 Lecture 4 Page 6...
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