The last stage of operational Amplifier is a power amplifier. Class B is a good choice...
The last stage of operational Amplifier is a power amplifier. Class B is a good choice for the power amplifier. However, class B suffer from crossover distortion. Several methods are used to correct this non linearity as was discussed in the lecture (class AB). One of this method is the use of VBE multiplier. Design the output of an operational amplifier using class AB that employ VBE multiplier. For temperature stability RE can be used for the NPN and PNP transistors. The load connected to this amplifier is 16 ohms. The minimum output voltage should be 12 V. the power supply is +-18V. Assume beta of each transistor to be 100 and the value of VBE=0.7 V.
You need to optimise your design to have best efficiency and least impact on the environment. You need to justify the choices that you are making and their effects on the final design.
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The last stage of operational Amplifier is a power amplifier.
Class B is a good choice...
4. The driver stage of a power amplifier is often a PNP-NPN Class-AB pair. It is...
4. The driver stage of a power amplifier is often a PNP-NPN Class-AB pair. It is important for the two transistors in the pair to have identical values of Bic Both transistors have base width W= 1.0 μm . The PNP device has N,-1016cm-3, For Si, the diffusion constants and lengths are: D./D, 3.3333; L/L,-1.8257; L-0.3116 cm; L, 0.1707 cm. For the NPN device BiIf NE 10'" cm 3 for the NPN device find the required N HINTS: The expression...
a) What is "power-conversion efficiency' of an output stage? Comparo the class-A and class-B amplifier output...
a) What is "power-conversion efficiency' of an output stage? Comparo the class-A and class-B amplifier output stages with rospect to their power-conversion officiencies. b) Assume that an emitter follower 9, is used as a class-A output stago, with the constant current supplied by another transistor 2. (as in Figure Q.4.a). Let Vcc=16V, 1 =100mA, and R=10002. If the output voltage is an 4-V-peak sinusoid, find the power conversion efficiency. VC Figure Q.4.a c) Explain the crossover distortion in a class-B...
Student Assessment 1. The complementary PNP/NPN emitter follower circuit is intended as a: a small signal...
Student Assessment 1. The complementary PNP/NPN emitter follower circuit is intended as a: a small signal voltage amplifier 6 high frequency amplifier. C high output impedance amplifier. d current/power amplifier 2. If a complementary PNP/NPN output pair is driven with dual polarity power () supplies then the input and output terminals will be at: a half of the positive supply voltage 6 0V (ground). C half of the negative supply voltage. a +0.6V. The Transfer Characteristic of a complementary PNP/NPN...
2) VBE Multiplier: For the following Class AB amplifier, transistor Q3, RI and R2 create a...
2) VBE Multiplier: For the following Class AB amplifier, transistor Q3, RI and R2 create a VBE multiplier to bias the push-pull circuit of Q1 and Q2. Answer the following knowing that: Transistor Parameters: β large (all transistors) Q1 and Q2 matched Isl = 1s2 = 1.0 x 10'14 A 153 = 1.0 x 10-15 A (Don't assume that VBEON +10V BIAS 0.7 VDC) R1 03 Biasing Parameters: VBB O Vout 10KS2 Vout, DC 0 VDC R2 = 1.338 VDC...
It is required to design a class B output stage to deliver an average power of 20 W to an 8-Ω loa...
It is required to design a class B output stage to deliver an average power of 20 W to an 8-Ω load. The power supply is to be selected such that Vcc is about 5 V greater than the peak output voltage. This avoids transistor saturation and the associated nonlinear distortion, and allows for including short-circuit protection circuitry. (The latter will be discussed in Section 12.6.) Determine the supply voltage required the peak current drawn from each supply, the total...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout Irer RI Vina JET T7T Figure 1 Integrated amplifier circuit. Circuit Data: Vpp = 15 V, IREF = I1 = I2 = 1.0 mA Transistor Data: Q1: NMOS, un Cox = 80 A/V?, W/L = 100 um/0.8 um, Vtn = 0.8 V, L = 0.10 um/V Q2: NPN BJT, B = 100, Vbe = 0.7 V, VA = 150 V Q3, Q4: NMOS, un...
SOLVE PROBLEM #4 Problem #3 A class AB complementary symmetry amplifier with diode-compensation using ONE power...
SOLVE PROBLEM #4
Problem #3 A class AB complementary symmetry amplifier with diode-compensation using ONE power supply is shown. Let Vcc = 12 V, R1 = R2 = 5102, R; = 1002, and R1 = 82. Transistors Q1 and Q2 are matched with B = 100 and VBE = Vp=0.7 V. Vcc Ich Ict ic الم AC Load Line R C не Voc 2R DC Load Line lo Vin C2 не ic2 Vo R не C1 VE Voc R 2...
Need help with schematics for blocks 3, 4 and 5!!!!!! Include all schematics and wiring along with the component values...
Need help with schematics for blocks 3, 4 and
5!!!!!!
Include all schematics and wiring along with the component
values and how you acquired them. Explain how each block functions
and label any figures.
Need schematics for blocks 3, 4 and 5!!!!!!
Goal For your final project you will be asked to design and assemble a system in which you will input a stereo audio signal, mix the channels into a single mono signal, amplify the signal, filter it to...
sedra smith book 7th edition chapter name is operational amplifier. question 12.1 to 12.10 I need...
sedra smith book 7th edition chapter name is operational
amplifier. question 12.1 to 12.10 I need all solution with good
hand writing.
Problems 1075 Transistor Q3 WIL (um/um) 36/0.3 36/0.3 6/0.3 6/0.3 30/0.3 W/0.3 45/0.3 6/0.3 and A, if all devices are 0.3 m long, Q and Q2 are operated at overdrive voltages of 0.15-V magnitude, and Q is operated at Voy 0.2 V. Also, determine the op-amp output resistance 100 k2, C0.1 pF, G = 2 mA/V, R, =...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os,...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
4. The driver stage of a power amplifier is often a PNP-NPN Class-AB pair. It is important for the two transistors in the pair to have identical values of Bic Both transistors have base width W= 1.0 μm . The PNP device has N,-1016cm-3, For Si, the diffusion constants and lengths are: D./D, 3.3333; L/L,-1.8257; L-0.3116 cm; L, 0.1707 cm. For the NPN device BiIf NE 10'" cm 3 for the NPN device find the required N HINTS: The expression...
a) What is "power-conversion efficiency' of an output stage? Comparo the class-A and class-B amplifier output stages with rospect to their power-conversion officiencies. b) Assume that an emitter follower 9, is used as a class-A output stago, with the constant current supplied by another transistor 2. (as in Figure Q.4.a). Let Vcc=16V, 1 =100mA, and R=10002. If the output voltage is an 4-V-peak sinusoid, find the power conversion efficiency. VC Figure Q.4.a c) Explain the crossover distortion in a class-B...
Student Assessment 1. The complementary PNP/NPN emitter follower circuit is intended as a: a small signal voltage amplifier 6 high frequency amplifier. C high output impedance amplifier. d current/power amplifier 2. If a complementary PNP/NPN output pair is driven with dual polarity power () supplies then the input and output terminals will be at: a half of the positive supply voltage 6 0V (ground). C half of the negative supply voltage. a +0.6V. The Transfer Characteristic of a complementary PNP/NPN...
2) VBE Multiplier: For the following Class AB amplifier, transistor Q3, RI and R2 create a VBE multiplier to bias the push-pull circuit of Q1 and Q2. Answer the following knowing that: Transistor Parameters: β large (all transistors) Q1 and Q2 matched Isl = 1s2 = 1.0 x 10'14 A 153 = 1.0 x 10-15 A (Don't assume that VBEON +10V BIAS 0.7 VDC) R1 03 Biasing Parameters: VBB O Vout 10KS2 Vout, DC 0 VDC R2 = 1.338 VDC...
It is required to design a class B output stage to deliver an average power of 20 W to an 8-Ω load. The power supply is to be selected such that Vcc is about 5 V greater than the peak output voltage. This avoids transistor saturation and the associated nonlinear distortion, and allows for including short-circuit protection circuitry. (The latter will be discussed in Section 12.6.) Determine the supply voltage required the peak current drawn from each supply, the total...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout Irer RI Vina JET T7T Figure 1 Integrated amplifier circuit. Circuit Data: Vpp = 15 V, IREF = I1 = I2 = 1.0 mA Transistor Data: Q1: NMOS, un Cox = 80 A/V?, W/L = 100 um/0.8 um, Vtn = 0.8 V, L = 0.10 um/V Q2: NPN BJT, B = 100, Vbe = 0.7 V, VA = 150 V Q3, Q4: NMOS, un...
SOLVE PROBLEM #4
Problem #3 A class AB complementary symmetry amplifier with diode-compensation using ONE power supply is shown. Let Vcc = 12 V, R1 = R2 = 5102, R; = 1002, and R1 = 82. Transistors Q1 and Q2 are matched with B = 100 and VBE = Vp=0.7 V. Vcc Ich Ict ic الم AC Load Line R C не Voc 2R DC Load Line lo Vin C2 не ic2 Vo R не C1 VE Voc R 2...
Need help with schematics for blocks 3, 4 and
5!!!!!!
Include all schematics and wiring along with the component
values and how you acquired them. Explain how each block functions
and label any figures.
Need schematics for blocks 3, 4 and 5!!!!!!
Goal For your final project you will be asked to design and assemble a system in which you will input a stereo audio signal, mix the channels into a single mono signal, amplify the signal, filter it to...
sedra smith book 7th edition chapter name is operational
amplifier. question 12.1 to 12.10 I need all solution with good
hand writing.
Problems 1075 Transistor Q3 WIL (um/um) 36/0.3 36/0.3 6/0.3 6/0.3 30/0.3 W/0.3 45/0.3 6/0.3 and A, if all devices are 0.3 m long, Q and Q2 are operated at overdrive voltages of 0.15-V magnitude, and Q is operated at Voy 0.2 V. Also, determine the op-amp output resistance 100 k2, C0.1 pF, G = 2 mA/V, R, =...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...
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