- Following Ac Coupled Voltage Divider Amplifier Will Be Used To Explore The Frequency Response Of The Common Emitter Ampl 1 (212.61 KiB) Viewed 49 times
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Following AC coupled voltage divider amplifier will be used to explore the frequency response of the common-emitter amplifier topology. Since the circuit has a rather high gain, a resistor divider network is included at the input of the circuit to keep the input signal small. 2N2222 transistor will be used in this experiment. +10 V 2.2 k in IF TAF 10 KO ma a) Varen 100 g 10 KO ΙΚΩ 10 JF a. Find the value of resistance Roi that will bias the device at a collector voltage of Vc~ 6-7 V. Make sure that you have selected a standard resistor value. Then calculate Vcea, leg and re. b. Calculate the mid-band gain of the amplifier Avo = Vout/Vin, both as a ratio and in dB. c. Determine the overall low cut-off frequency of the amplifier Plot the overall frequency response of the amplifier. d. Replace the 10 pF bypass capacitor by a 100 pF capacitor and repeat step (C). e. To assess the effect of the output coupling capacitor, load the circuit by RL=2200 and repeat step (C). (Keep the bypass capacitor as 100 pF for this step) 1299 Sozcuk