Consider the simple bipolar op-amp circuit in Figure 11.49 with circuit and transistor parameters given in Exercise Problem Ex11.15. Determine the input resistances
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Microelectronics: Circuit Analysis and Design
- After power factor compensation, the value of active power P decreases since current value decreases Select one: True Falsearrow_forwardProblem 1: Consider the circuit shown below. The transistor parameters are Kn1 = 0.5 mA/V2 , Kn2 = 0.2 mA/V2 , VT N1 = VT N2 = 1.2 V, and λ1 = λ2 = 0. The quiescent drain currents are ID1 = 0.2 mA and ID2 = 0.5 mA. (a) Determine the small-signal voltage gain of the given multistage amplifier. Answer: -6.14. (b) Calculate the small-signal output resistance Ro. Answer: 1.32 kΩ. Problem 2: The transistor parameters for the given circuit are β1 = 120, β2 = 80, VBE1 (on) = VBE2 (on) = 0.7 V, and VA1 = VA2 = ∞. (a) Determine the quiescent collector current in each transistor. Answer: IC1 = 2.253 mA, IC2 = 69.73 mA. (b) Find the small-signal voltage gain Av = vo/vs. Answer: 0.99. (c) Determine the input and output resistances Rib and Ro. Answer: Rib = 467.6 kΩ, Ro = 0.512 Ωarrow_forwardConsider the circuit shown in Figure 11.10 on page 567. The transistor characteristics are shown in Figure 11.11. Suppose that VGG is changed to 0 V. Determine the values of VDSQ, VDSmin and VDSmax. Find the gain of the amplifier.arrow_forward
- Amplifier circuit is show below has a single ac input and one ac output. Assuming 2N2222 transistor: Construct the T-model of the transistor with all parameters labelled and evaluated. Assume room temperature. Draw a complete small signal circuit model, then find the voltage gain. Explain two characteristics of this amplifier. Calculate the current gain, the input resistance, and the output resistance.arrow_forwardTopic: Field Effect Transistor Given the FET Amplifier circuit. Answer the question asked in each letter. a. Transconductance Gain (gm) b. Drain Resistor (RD) c. Input Impedance (Zi) d. Output Impedance (Zo) e. Voltage Gain (Av) f. What is the AC configuration of the amplifier?common source, common gate, common drain, or source bias?arrow_forward2. A load of 8Ω is supplied by a single-switch Direct Current (DC) chopper with an inputvoltage of 40V. The switching frequency is 800Hz, the duty ratio is 0.4, and thetransmission voltage drop of the transistor is 2.4V a. Draw the chopper circuit presented in the question b. Find the switching period with the duty time of BJT c. Draw the load voltage, load current, BJT current, BJT voltage along two periods d. Find the output voltage. Is the achieved load voltage the average value or the effectivevalue e. Find the output power f. Find the average value and effective value of BJT current g. Find the power loss of BJT h. Find the DC source current i. Find the circuit efficiencyarrow_forward
- Topic: Input and Output Characteristics of Transistor in Common Base Configuration Answer in 2-3 sentences each. Need a kind tutor that will do it for me. Thank you! 1. What are the applications of the common base (CB) configuration? 2. What are the output and input impedances of CB configuration?arrow_forwardFor the class B output stage of Figure 2, let VCC = 6 V and RL = 4Ω. If the output is a sinusoidal with 4.5V peak amplitude, find; (a) The output power. (b) The average power drawn from each supply/ (c) The power efficiency obtained at this output voltage. (d) The maximum power that each transistor must be capable of dissipating safely.arrow_forwardGiven r_e = 10 Ω, β = 200, A_v = -160, and A_i = 19 for the collector-feedback network shown below, determine a) R_C; b) R_F; and, c) V_CC .arrow_forward
- Amplifier circuit is show below has a single ac input and one ac output. Assuming 2N2222 transistor: 1- Determine the Q point, then illustrate it on the transistor I-V characteristic curves. 2- Is the transistor in the active region? Explain thoroughly. 3- Construct the T-model of the transistor with all parameters labelled and evaluated. Assume room temperature. 4- Draw a complete small signal circuit model, then find the voltage gain. Explain two characteristics of this amplifier. 5- Calculate the current gain, the input resistance, and the output resistance.arrow_forwardThe ac equivalent circuit for an amplifier is shown. Assume the capacitors have infinite value, RI =750Ω, RB =100 kΩ, RC =100 kΩ, and R3 =100 kΩ. Calculate the input resistance and output resistance for the amplifier if the BJT Q-point is (75 μA, 10 V). Assume βo =100 and VA =75 V.arrow_forwardHow experimental setup is prepared for a CE transistor configuration. Drawits a h-parameter model. Find amplifier parameters given below using this model- (i) Current gain(ii) Input impedance(iii) Voltage Amplification (AVS) consideration source impedance(iv) Current Amplification (AIS) consideration source impedancearrow_forward
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