An amplifier circuit using a bipolar transistor is shown in
Figure Q5.
(a) State, with a valid reason, whether this amplifier is an
emitter follower
or a common emitter configuration.
(b) Redraw Figure Q5 as a large signal equivalent circuit. Show
that:
(c) Show that the input voltage, vISAT to produce the onset of
saturation for
T1 is given by:
(d)
, confirm, by calculation, that
T1 is in saturation.
(e) Calculate the current in the lamp when T1 is in saturation and
confirm
the current is sufficient to light the lamp.
CC CESAT SAT
In the circuit of Figure Q5, Rc is now replaced by a lamp with a resistance of 500 Ω. At least 25 mA is required to light the lamp. The circuit is to be designed that the lamp is on for v, - 1 V. T, has Vcc 15 V, R -1.2 k2. β:J00, VCESAT-0.1 V,
For v,-1V
Rc CE v1 R GND Figure Q5
Homework Answers
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An amplifier circuit using a bipolar transistor is shown in Figure Q5. (a) State, with a valid re...
Consider the BJT common-emitter amplifier in Figure 1. Assume that the 2N3904G transistor has the following parameters: β-206, VBE-0.TV and the Early voltage VAT 1000V. vCC RB1a I multiple resistors...
Consider the BJT common-emitter amplifier in Figure 1. Assume that the 2N3904G transistor has the following parameters: β-206, VBE-0.TV and the Early voltage VAT 1000V. vCC RB1a I multiple resistors RC want n Vload 22HF Rload 01 2N3904G V1 6302 4.7HF RE2CE 0.01Vpk 1kHz maliple esistons lue you available in the ki Figure 1 BJT CE amplifier 0.5 V and VC-3 V (a) Design the DC biasing circuit so that lc-2 mA, VCE = 2.5 V, VE
Consider the BJT...
5. Determine the Ico and Vceo for the emitter-biased common-emitter amplifier circuit show below. Assume B=180....
5. Determine the Ico and Vceo for the emitter-biased common-emitter amplifier circuit show below. Assume B=180. (12 points) Vcc 918 v Rs12330 ks Rc 1,5 k22 Rs2 B V ce 18 220 ke2 RE 30.75 k2 6. Draw the circuit diagram of a common-emitter voltage-divider bias with the following parameters. (12 points) Vcc = 16V, R, -30k1, R2 = 10k22, Rc = 3.3kQ2, Re = 1.5k22, B = 199 (a) Determine lco and Vcro using the approximate method. (b) Determine...
6. (a) Explain the operation of the master-slave S-R flip flop. (b) What is the essential difference in the response of the master-slave circuit and that of the circuit in Q4? (c) Determine th...
6. (a) Explain the operation of the master-slave S-R flip flop. (b) What is the essential difference in the response of the master-slave circuit and that of the circuit in Q4? (c) Determine the waveform at Q for the negative edge triggered S-R flip flop (assume Q is initially 0) Design the DC fixed mid-point bias conditions and calculate RB, Ic and Rc for a simple common emitter amplifier with following parameters: β 200, Vcc-10 V and IB-40 μΑ V...
VCC 24V RC 6.8kQ 100kΩ C2 0 15UF 01 C1 15uF 2N3904 R2 RE CE Figure 1. Common-emitter transistor a...
Please use Multisim with probes placed and labeled.
Thank you for your time!
VCC 24V RC 6.8kQ 100kΩ C2 0 15UF 01 C1 15uF 2N3904 R2 RE CE Figure 1. Common-emitter transistor amplifier 2. Use Multisim to build circuit and measure the DC bias value for the figure above. 3. Calculate the AC dynamic resistance, re, using the measured value of lE 4. Calculate the amp voltage gain for the bypassed emitter 5. Record measured and calculated results in table...
It Kind of goes without saying but if you have no knowledge than dont comment or try and answer this question you dope Questions 1-3 below are about the amplifier circuit of Figure 1. Here Vcc is a...
It
Kind of goes without saying but if you have no knowledge than dont
comment or try and answer this question you dope
Questions 1-3 below are about the amplifier circuit of Figure 1. Here Vcc is a fixed voltage The base voltage vB(t) is time-varying, and is of the form vB(t) V(t) where VB is a DC offset, and vb(t) is a time-varying purely AC signal. Suppose the amplitude of vb is A. Assume that the capacitor C is...
Solve for the following using: 1) exact method 2) approximate method compare if approximate method is...
Solve for the following using:
1) exact method
2) approximate method
compare if approximate method is sufficient for analysis. which
solution is better?
Example For the voltage divider bias circuit, RB1-13K2, R 2.2k2 , Rc-68K(2. RE-1.5K(2.Vcc-15 V. VCEsat -0.3 V and β of the Si transistor is 80. Determine the following O" (a) DC base voltage and DC emitter voltage of the transistor amplifier (b) DC operating voltages and currents of the transistor amplifier (lBo, Ico, IEo and VcEO) (c)...
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...
100 1.5 0.27 5. 6 Pl. Consider the CB amplifier of Figure 1, for which Vcc-15...
100 1.5 0.27 5. 6 Pl. Consider the CB amplifier of Figure 1, for which Vcc-15 V, Rs-50 Ω, and RL-10 kQ. For the BJT, assume that B150, VBE.on0.7 V, and VcE,sat 0.3 V, and ignore the Early effect. For the other resistances, however, assume the same values as those you used for the Common-Emitter (CE) amplifier lab (disregard the value for RE2, as the resistor does not exist in the CB amplifier of Figure 1). Therefore, copy the same...
QUESTION (1) Transistor Mi in this common base amplifier circuit has the following characteristics: +Vc VTH...
QUESTION (1) Transistor Mi in this common base amplifier circuit has the following characteristics: +Vc VTH =1 V Rp R, C. K 1 mA/V2 2 0.1 R Given: Vcc 2 mA, 10 V, lbias Ct C2 0, 5 k2, RD 2 k2 RI 10 k, R2 R (12 points) a) Determine the small signal gain, vo/Vin. (4 points) b) Determine the input resistance, Rin. (4 points) c) Determine the output resistance, Ro. Useful formulae: for n-channel MOSFET triode region =...
1.0 kn. RE-390 Ω, r-15 Ω. and ßac-75. 5. For a common-emitter amplifier, Rc Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is (a) 66.7 (d) 75 (b) 2.56 (c) 2....
1.0 kn. RE-390 Ω, r-15 Ω. and ßac-75. 5. For a common-emitter amplifier, Rc Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is (a) 66.7 (d) 75 (b) 2.56 (c) 2.47 6. In the circuit of Question 5, if the frequency is reduced to the point where Xctbypass) RE, the voltage gain (a) remains the same (b) is less (c) is greater 7. In a common-emitter amplifier with voltage-divider bias, Rimlbase) 68 k2, Ri 33...
Consider the BJT common-emitter amplifier in Figure 1. Assume that the 2N3904G transistor has the following parameters: β-206, VBE-0.TV and the Early voltage VAT 1000V. vCC RB1a I multiple resistors RC want n Vload 22HF Rload 01 2N3904G V1 6302 4.7HF RE2CE 0.01Vpk 1kHz maliple esistons lue you available in the ki Figure 1 BJT CE amplifier 0.5 V and VC-3 V (a) Design the DC biasing circuit so that lc-2 mA, VCE = 2.5 V, VE
Consider the BJT...
5. Determine the Ico and Vceo for the emitter-biased common-emitter amplifier circuit show below. Assume B=180. (12 points) Vcc 918 v Rs12330 ks Rc 1,5 k22 Rs2 B V ce 18 220 ke2 RE 30.75 k2 6. Draw the circuit diagram of a common-emitter voltage-divider bias with the following parameters. (12 points) Vcc = 16V, R, -30k1, R2 = 10k22, Rc = 3.3kQ2, Re = 1.5k22, B = 199 (a) Determine lco and Vcro using the approximate method. (b) Determine...
6. (a) Explain the operation of the master-slave S-R flip flop. (b) What is the essential difference in the response of the master-slave circuit and that of the circuit in Q4? (c) Determine the waveform at Q for the negative edge triggered S-R flip flop (assume Q is initially 0) Design the DC fixed mid-point bias conditions and calculate RB, Ic and Rc for a simple common emitter amplifier with following parameters: β 200, Vcc-10 V and IB-40 μΑ V...
Please use Multisim with probes placed and labeled.
Thank you for your time!
VCC 24V RC 6.8kQ 100kΩ C2 0 15UF 01 C1 15uF 2N3904 R2 RE CE Figure 1. Common-emitter transistor amplifier 2. Use Multisim to build circuit and measure the DC bias value for the figure above. 3. Calculate the AC dynamic resistance, re, using the measured value of lE 4. Calculate the amp voltage gain for the bypassed emitter 5. Record measured and calculated results in table...
It
Kind of goes without saying but if you have no knowledge than dont
comment or try and answer this question you dope
Questions 1-3 below are about the amplifier circuit of Figure 1. Here Vcc is a fixed voltage The base voltage vB(t) is time-varying, and is of the form vB(t) V(t) where VB is a DC offset, and vb(t) is a time-varying purely AC signal. Suppose the amplitude of vb is A. Assume that the capacitor C is...
Solve for the following using:
1) exact method
2) approximate method
compare if approximate method is sufficient for analysis. which
solution is better?
Example For the voltage divider bias circuit, RB1-13K2, R 2.2k2 , Rc-68K(2. RE-1.5K(2.Vcc-15 V. VCEsat -0.3 V and β of the Si transistor is 80. Determine the following O" (a) DC base voltage and DC emitter voltage of the transistor amplifier (b) DC operating voltages and currents of the transistor amplifier (lBo, Ico, IEo and VcEO) (c)...
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...
100 1.5 0.27 5. 6 Pl. Consider the CB amplifier of Figure 1, for which Vcc-15 V, Rs-50 Ω, and RL-10 kQ. For the BJT, assume that B150, VBE.on0.7 V, and VcE,sat 0.3 V, and ignore the Early effect. For the other resistances, however, assume the same values as those you used for the Common-Emitter (CE) amplifier lab (disregard the value for RE2, as the resistor does not exist in the CB amplifier of Figure 1). Therefore, copy the same...
QUESTION (1) Transistor Mi in this common base amplifier circuit has the following characteristics: +Vc VTH =1 V Rp R, C. K 1 mA/V2 2 0.1 R Given: Vcc 2 mA, 10 V, lbias Ct C2 0, 5 k2, RD 2 k2 RI 10 k, R2 R (12 points) a) Determine the small signal gain, vo/Vin. (4 points) b) Determine the input resistance, Rin. (4 points) c) Determine the output resistance, Ro. Useful formulae: for n-channel MOSFET triode region =...
1.0 kn. RE-390 Ω, r-15 Ω. and ßac-75. 5. For a common-emitter amplifier, Rc Assuming that Rg is completely bypassed at the operating frequency, the voltage gain is (a) 66.7 (d) 75 (b) 2.56 (c) 2.47 6. In the circuit of Question 5, if the frequency is reduced to the point where Xctbypass) RE, the voltage gain (a) remains the same (b) is less (c) is greater 7. In a common-emitter amplifier with voltage-divider bias, Rimlbase) 68 k2, Ri 33...
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