Answer Happy

Prelab: 1. For the amplifier circuits in Figs. 1, 2, 3, and 4: a. Calculate the Q-point values of collector current (Ic) and collector-emitter voltage (VCE). Assume BDC-150, VBE=0.65 V, VCE(SAT) -0.2 V, and VA = ∞o. Put your results in the prelab columns of Table 1. b. Calculate the small-signal voltage gain Vout/Vin. Assume BAC-150 and the capacitors are short circuits. Put your results in the prelab columns of Table 2 Record the gain magnitude in column 2 and the phase shift in column 3. A non-inverting gain has a phase shift of 0° and an inverting gain has a phase shift 180°
41lHo Vcc +10 V C₁ 4.7 μF 非 +V₂ R₁ 180 ΚΩ R₂ 56 ΚΩ Rc 1kΩ -Vout Q1 2N2222 Fig. 1. Common-emitter amplifier without emitter resistor.
411H Vcc +10 V C₁ 4.7 uF +V R₁ 180 ΚΩ R₂ 56 ΚΩ Re 1kQ Q1 2N2222 M RE 100 Ω Fig. 2. Common-emitter amplifier with emitter resistor.
411H + Vcc +10 V C1 4.7 uF V₂ R₁ 180 ΚΩ R₂ 56 kQ RE 100 Ω Rc 1 kQ Q1 2N2222 CE 47 uF Fig. 3. Common-emitter amplifier with bypassed emitter resistor.
411H0 +1 Vcc +10 V C₁ 4.7 uF +Vi m W R₁ 180 ΚΩ R₂ 56 ΚΩ Q1 2N2222 M -Vou RE 100 Ω Fig. 4. Common-collector amplifier.