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The circuit parameters of the diff-amp shown in Figure 11.2 are
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Microelectronics: Circuit Analysis and Design
- QUESTION 2: The differential amplifier in Figure P11.4 is biased with a three-transistor current source. The transistor parameters: B = 85 , VBE(on) = 0.7 V, and V= 0. Determine a new value of R1 such that VCE4 = 1.3 V. What are the values of Ic4, Ic2, and I4? Ic4 (mA) Format : 4.2 Ic2 (mA) Format : 8.382 I (mA) Format : 5.576 R1 (kN) Format : 5.969 +5 V 8.5 k2 2 k2 2 kQ Q4 VCE4 Qs Q3 Q2 VCE2 -5 V Figure P11.4 wwarrow_forwardcircuits by using the small signal models of the transistor. Assume the Early voltage of the transistors are infinitely large. Calculate the small-signal input and output impedances of the following Vcc R1 R1 Rout VB RE Rin R2arrow_forwardThe transistor parameters for the circuit in Figure P11.9 are: B = 100, VBE (On) = 0.7 V, and VA = ∞o. (a) Determine RE such that IE = 150 μΑ. (b) Find Ad, Acm, and CMRRB for a one-sided output at vo2. (c) Determine the differential- and common-mode input resistances. Rc-50 k Rg = 0.5 kΩ www VI www 21 Figure P11.9 +10 V VOLVO2 IE RE -10 V ? Rc = 50 kΩ 22 Rg = 0.5 kΩ ww S'arrow_forward
- Class B Amplifier q1)If the input is 7.5Vp-p...DATA COLLECTION: What is the IL(peak)? a)7mA 6)mA 5)mA 4)mA q2) DATA COLLECTION: What is the Idc? a)3.84 b)4.82 c)3.82mA d)1.82mA q3)DATA COLLECTION: What is the input power in DC? Power input = 48.45mW Power input = 45.48mW Power input = 44.58mW Power input = 45.84mW q4) DATA COLLECTION: What is the output power in AC? a)18mW b)81mW c)11.8mW d)18.9mW q5)DATA COLLECTION: What is the power dissapated by each transistor? a)35.1mW b)53.1mW c)15.3mW d)13.5mW q6)DATA COLLECTION: What is the efficiency of class B amplifier? a)45% b)40% c)63% d)33% q7)arrow_forwardA. Detemine the value of the collector resistor in an npn transistor amplifier with Bpc = 250, VBB = 2.5 V, Vcc = 9 V, VCE = 4 V, and Rg = 100 k2. B. Detemine Ic(sat) for the transistor in below Figure. What is the value of Is necessary to produce saturation? What minimum value of VIN is necessary for saturation? Assume VCE(sat) = 0 V. %3D +5 V 10 kN Rg VINO BDC = 150 1.0 MNarrow_forwardWhat must be the minimum power rating for the external pass transistor used with a 7815 regulator in a circuit such as that shown in Figure below? The input voltage is 30 V and the load resistance is 10 n. The maximum internal current is to be 700 ma Assume that there is no heat sink for this calculation. Keep in mind that the use of a heat sink increases the effective power rating of the transistor and you can use a lower rated transistor. VIN Re VoUT 7815 RLarrow_forward
- Determine the DC bias values using DC equivalent circuits (in order of VE, VB, VC)arrow_forwardQUESTION 3: The diff-amp configuration shown in Figure 11.7 is biased at 3.3 V and -3.3 V. The maximum power dissipation in the entire circuit is to be no more than 1.2 mW when v₁ = v₂ = 0. The available transistors have parameters: ß = 130, VBE(on) = 0.71 V, and VA = 00. Design the circuit to produce the maximum possible differential-mode voltage gain, but such that the common-mode input voltage can be within the range - 0.91 < VCM<0.91 V and the transistors are still biased in the forward-active region. What is the value of Ad? R₁ (kQ) Format: 67.42 Rc (kn) Format 48.55 8m (mA/V) Format: 8.3846 Ad Format: 66.55 V+ R₁ IC₁Rc Ic₂Rc ww 23 1010 24 Figure 11.7 2₂ -0 U₂ ICAarrow_forwardGiven a D-MOSFET circuit used as an amplifier with the following parameter: IDSS=12mA and a transconductance of gm=3.2 mS. Determine the DC drain to source voltage VDS and the AC output voltage if Vin=500 mV.arrow_forward
- Q1. a. In your own words, explain finite output resistance in MOSFET's saturation b. In your own words, explain the boundary between Triode and Saturation in MOSFET?arrow_forward1. For the circuit in Figure 1: a) Calculate the input and output power if the input signal results in a base current of 6 mA. b) Calculate the input power dissipated by the circuit if Re is changed to 2kn. c) What maximum output power can be delivered by the circuit if Rg is changed to 2 ko? d) If the circuit is biased at its center voltage and center collector operating point, what is the input power for a maximum output power of 2W? 20V Re = 16 2 1.2 ks2 B- 40 100 µF Figure 1arrow_forwardFigure 1(a) shows a series fed class A amplifier circuit. In order to achieve the maximum efficiency, the Q point must be located at the center of the DC load line as shown in Figure 1(b). This generates the maximum output current swing of Icmax (p – p) RC and the maximum output voltage swing is VCEmax(p – p) = Vcc Assume that the maximum input de power is (1 Vcc Pimax(dc) = Vcc!cQ(max)=Vcc \2° Rc. 2Rc Find the maximum efficiency, 7 of this circuit.arrow_forward
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