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Emitter Follower Application Circuit A simple voltage...
that's all information it gives A zener-diode voltage regulator circuit is shown below. The tage V 8.0V and the zener resistance is assumed to Problem 3: (20 points) zener diode has breakdown...
that's all information it gives
A zener-diode voltage regulator circuit is shown below. The tage V 8.0V and the zener resistance is assumed to Problem 3: (20 points) zener diode has breakdown vol be 0 ohms. The power supply voltage Vps can vary between resistance RL can vary between 100 ohms and 1 kohm. 10V and 14V and the load Ri PS 1. Find a value of Ri such that the zener diode remains properly biased over the range of...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage V...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage Vps can vary between 10V and 14V and the lod resistance Ri can vary between 100 ohms and 1 kohm, 圧 1. Find a value of R such that the zener diode remains properly biased over the range of variation of Vps and RI (hint: the minimum...
9. A circuit that combines a zener regulator and an emitter follower is referred to as...
9. A circuit that combines a zener regulator and an emitter follower is referred to as A. An emitter regulator B. A follower regulator C. A zener follower D. A zener diode 10. Small load resistances that would overload a CE amplifier can be used with an emitter follower because an emitter follower A. steps up impedance B. amplifies high frequencies better C. has a higher voltage gain D. cannot amplify current 11. The emitter-follower amplifier has a A. low...
2.19 Consider the circuit shown in Figure P2.19. The Zener diode voltage is Vz = 3.9...
2.19 Consider the circuit shown in Figure P2.19. The Zener diode voltage is Vz = 3.9 V and the Zener diode incremental resistance is ra = 0. (a) Deter- mine Iz, Il, and the power dissipated in the diode. (b) Repeat part (a) if the 4 k 32 load resistor is increased to 10 KS2. 12 k22 " 1112 vz$ 111 462 20 v= Figure P2.19
Question 3. Unregulated supply Rz IL Vin IR Ib (a) The circuit on the right shows...
Question 3. Unregulated supply Rz IL Vin IR Ib (a) The circuit on the right shows a series regulator connected to the output of an unregulated power supply. The transistor has B =50, and a 6 volt Zener diode is used. When the load current, Il, is 1 amp the de input voltage from the unregulated supply, Vin, is 11 volt, VBE = 1 volt and the Zener diode current, Iz, is 20 mA. For these conditions, calculate Iz (i)...
6. In the zener diode regulator circuit below calculate the value of the current through the...
6. In the zener diode regulator circuit below calculate the value of the current through the zener Diode if the power supply is rated at 24 volts @ 500 milliamperes. The load voltage is 12 volts and draws a current of 300 milliamperes. Also calculate the value of the series resistance R. ZENDER LOAD DIODE 24 VDC Vz 12 Volts @ 300 mA
11) 20pts. The zener limiter circuit s V R often used as a low power voltage...
11) 20pts. The zener limiter circuit s V R often used as a low power voltage regulator for a DC power supply. This circuit is an example in load A) Find R so that the maximum power dissipated in the zener diode is Po for any possible value of Road given P, Vin and B) What is the maximum current that the load can draw before the zener stops regulating the voltage? C) When the circuit is regulating the voltage...
In the circuit below, if the load resistance RLOAD was 3k3 (3300) ohms, to what voltage...
In the circuit below, if the load resistance RLOAD was 3k3 (3300) ohms, to what voltage could the 9V battery's voltage fall, before the regulators output voltage of 5.1V would start to drop. Assume that the Zener diode needs at least 1mA flowing through it to hold the reverse breakover voltage of 5.1V Give the answer in volts without including the units (numerical answer only 1k 91 511 R LOAD Answer:
Q3. Consider an ideal solar cell with following parameters: Short circuit current - A and open circuit voltage 0.6V. current LOAD (a) Find the diode saturation current (lo) of the solar cell. (1...
Q3. Consider an ideal solar cell with following parameters: Short circuit current - A and open circuit voltage 0.6V. current LOAD (a) Find the diode saturation current (lo) of the solar cell. (10 points) (b) Estimate the power delivered by the solar cell to a load of RL -0.1. Justify any approximation in your calculation (10 points) (e) After few years of field operation, the solar cell developed series resistance of R, ohms and shunt resistance of Rsh ohms. Draw...
Problem 2 A 1.5 volt energy source is to used to power a 5 volt, 1 amp load. A buck-boost converter is used for this application. A suitable transistor is found with an on-resistance of 35 mQ, and a...
Problem 2 A 1.5 volt energy source is to used to power a 5 volt, 1 amp load. A buck-boost converter is used for this application. A suitable transistor is found with an on-resistance of 35 mQ, and a Schottky diode is found with a forward drop of 0.5 volts. The on resistance of the Schottky diode may be ignored. The circuit is shown in the following figure. 1 A 100 HH 5 V Load 1.5 V DT T f,...
that's all information it gives
A zener-diode voltage regulator circuit is shown below. The tage V 8.0V and the zener resistance is assumed to Problem 3: (20 points) zener diode has breakdown vol be 0 ohms. The power supply voltage Vps can vary between resistance RL can vary between 100 ohms and 1 kohm. 10V and 14V and the load Ri PS 1. Find a value of Ri such that the zener diode remains properly biased over the range of...
Problem 3: (20 points) A zener-diode voltage regulator circuit is shown belkw zener diode has breakdown voltage Vz 8.0V and the zener resistance is nsumed to be 0 ohms. The power supply voltage Vps can vary between 10V and 14V and the lod resistance Ri can vary between 100 ohms and 1 kohm, 圧 1. Find a value of R such that the zener diode remains properly biased over the range of variation of Vps and RI (hint: the minimum...
9. A circuit that combines a zener regulator and an emitter follower is referred to as A. An emitter regulator B. A follower regulator C. A zener follower D. A zener diode 10. Small load resistances that would overload a CE amplifier can be used with an emitter follower because an emitter follower A. steps up impedance B. amplifies high frequencies better C. has a higher voltage gain D. cannot amplify current 11. The emitter-follower amplifier has a A. low...
2.19 Consider the circuit shown in Figure P2.19. The Zener diode voltage is Vz = 3.9 V and the Zener diode incremental resistance is ra = 0. (a) Deter- mine Iz, Il, and the power dissipated in the diode. (b) Repeat part (a) if the 4 k 32 load resistor is increased to 10 KS2. 12 k22 " 1112 vz$ 111 462 20 v= Figure P2.19
Question 3. Unregulated supply Rz IL Vin IR Ib (a) The circuit on the right shows a series regulator connected to the output of an unregulated power supply. The transistor has B =50, and a 6 volt Zener diode is used. When the load current, Il, is 1 amp the de input voltage from the unregulated supply, Vin, is 11 volt, VBE = 1 volt and the Zener diode current, Iz, is 20 mA. For these conditions, calculate Iz (i)...
6. In the zener diode regulator circuit below calculate the value of the current through the zener Diode if the power supply is rated at 24 volts @ 500 milliamperes. The load voltage is 12 volts and draws a current of 300 milliamperes. Also calculate the value of the series resistance R. ZENDER LOAD DIODE 24 VDC Vz 12 Volts @ 300 mA
11) 20pts. The zener limiter circuit s V R often used as a low power voltage regulator for a DC power supply. This circuit is an example in load A) Find R so that the maximum power dissipated in the zener diode is Po for any possible value of Road given P, Vin and B) What is the maximum current that the load can draw before the zener stops regulating the voltage? C) When the circuit is regulating the voltage...
In the circuit below, if the load resistance RLOAD was 3k3 (3300) ohms, to what voltage could the 9V battery's voltage fall, before the regulators output voltage of 5.1V would start to drop. Assume that the Zener diode needs at least 1mA flowing through it to hold the reverse breakover voltage of 5.1V Give the answer in volts without including the units (numerical answer only 1k 91 511 R LOAD Answer:
Q3. Consider an ideal solar cell with following parameters: Short circuit current - A and open circuit voltage 0.6V. current LOAD (a) Find the diode saturation current (lo) of the solar cell. (10 points) (b) Estimate the power delivered by the solar cell to a load of RL -0.1. Justify any approximation in your calculation (10 points) (e) After few years of field operation, the solar cell developed series resistance of R, ohms and shunt resistance of Rsh ohms. Draw...
Problem 2 A 1.5 volt energy source is to used to power a 5 volt, 1 amp load. A buck-boost converter is used for this application. A suitable transistor is found with an on-resistance of 35 mQ, and a Schottky diode is found with a forward drop of 0.5 volts. The on resistance of the Schottky diode may be ignored. The circuit is shown in the following figure. 1 A 100 HH 5 V Load 1.5 V DT T f,...
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