Materials/Equipment Resistors (2) 2.2 k 2 (1) 3.9 kΩ (1) 10 kΩ (1) 39 ΚΩ Transistors (1) 2N3904, (or equivalent general

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Materials/Equipment Resistors (2) 2.2 k 2 (1) 3.9 kΩ (1) 10 kΩ (1) 39 ΚΩ Transistors (1) 2N3904, (or equivalent general purpose npn ) Capacitors (1) (1) 1 F (1) 10 uF 22uF Circuit Diagrams / Figures / Source Codes (if Applicable) 20V Cwo=10pF Cw=9pF W R2 39k R13.9k C1tu HI 구 T1304 Q2 100 TA LU R5 2.2k VG1 R3 10k R4 2.2K HHI C322u Figure 1. Common emitter amplifier
Procedures Part 1. Low-Frequency Response Calculations a. Using the specifications data for the transistor record values (specified) Cbe = 10pF (specified) Cb = (specified) Cce = Enter values of typical wiring capacitance b. Using a characteristics curve tracer, beta measuring instrument, or value obtained from previous use in the lab, obtain the value of transistor beta. THANK (calculated) Ve= (calculated) Ve= (calculated) Ve= (calculated) le = PLS! DONT ANSWER THIS Using the value of le calculate the transistor dynamic resistance. (calculated) re-
d. Calculate the magnitude of amplifier midband gain (under load) Av.mid = Rc1 Rdllre Avemid= e. Calculate lower cutoff frequencies due to coupling capacitors and due to bypass capacity Hz Hz Part 2. Low Frequency Response Construct the network of Fig. 41. Record actual resistor values in space provided in Fig. 4.1. if desired. Adjust Vcc = 20 V. Apply an input AC signal, Vsig = 20 mV, peak at a frequency of f= 5 kHz. Observe the output voltage using a scope. If V, shows distortion, reduce Vsig until the output is undistorted. PLS DONTANSİWER THIS b. Measure and record signals for undistorted operation. (measured) Vsig V (measured) V. V
Calculate the circuit's mid-frequency voltage gain. DONT ANSWER JUST-ANSWER THE TABLE ONLY Part 3. High Frequency Response Calculations a. Using the equations provided in the Resume of Theory calculate upper cutoff frequencies and record below. (calculated) = Hz (calculated) f,e- Hz b. Applying an input which provides non-distorted output voltage complete Table 4.3 measuring the resulting output voltage over a range of high frequency values. (measured) Vi= Data and Results TABLE 4.1- low frequency response f 50-Hz 100-Hz 200Hz 400Hz 600Hz 800Hz 1-kHz 2-kHz Vo f 3-kHz 5-kHz 10-kHz Vo Calculate the amplifier voltag gain for each and complete
Table 4.2. TABLE 4.2 50-Hz 100-Hz 200Hz 400Hz 600Hz 800Hz 1-kHz 2-kHz Av f 3-kHz 5-kHz 10-kHz AV TABLE 4.3 f 10kHz 50kHz 100kHz 300kHz 500kHz 600kHz 700kHz V. f 900kHz 1-MHz 2-MHz V. Calculate the amplifier voltage gain (in dB units) and complete Table 4.4
TABLE 4.4 f 10kHz 50kHz 100kHz 300kHz 500kHz 600kHz 700kHz dB f 900kHz 1-MHz 2-MHz dB