Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 10 mA. The zener...
Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 10 mA. The zener has an incremental resistance r, = 30 Q and a knee current of 0.5 mA. The regulator operates from a 10-V supply and delivers a nominal current of 5 mA to the load. What is the value of R you have chosen? What is the regulator output voltage when the supply is 10% high? Is 10% low? What is the output voltage when both the supply is 10% high and the load is removed? What is the largest load current that can be delivered while the zener operates at a current no lower than the knee current while the supply is 10% low? What is the load voltage in this case?
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Design a 7.5-V zener regulator circuit using a 7.5-V zener
specified at 10 mA. The zener...
Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 10 mA. The zener...
Design a 7.5-V zener regulator circuit using a 7.5-V zener specified at 10 mA. The zener has an incremental resistance rz = 30 Ω and a knee current of 0.5 mA. The regulator operates from a 10-V supply and delivers a nominal current of 5 mA to the load. What is the value of R you have chosen? What is the regulator output voltage when the supply is 10% high? Is 10% low? What is the output voltage when both...
5000 10.2 S pts) The Zener diode in the circuit on the right voltage V 20...
5000 10.2 S pts) The Zener diode in the circuit on the right voltage V 20 = 8.5V., and Zener resistancerz the circuit on the right has a Zener d) Find the Thevenin equivalent circuit as seen by lo b) Find the output voltage if a loa Find the output voltage if a load R, is connected and it draws a 1.5 mA current. Determine the value of RL c) How small can the load R, be, while ensuring that...
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...
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
(a) The following circuit shows a linear voltage regulator. Assuming the zener diode has specifications (VZ = 2.5 V, IZ...
(a) The following circuit shows a linear
voltage regulator. Assuming the zener diode has specifications (VZ
= 2.5 V, IZ = 60 mA), select adequate resistor values to provide a
regulated output voltage Vo = 10 V from an unregulated voltage Vi =
15V.
(b) Calculate the power efficiency of the
regulator when a load RL = 10Ω is connected to the regulator
output.
(c) Briefly explain the terms “dropout”, “line
regulation”, and “load regulation”, as they apply to 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...
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...
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...
cic e characteristics: 1,-10 mA at V, = 9V and incremental resistance rd-220 Find the output...
cic e characteristics: 1,-10 mA at V, = 9V and incremental resistance rd-220 Find the output voltage Vo when a load RL = 1 Kis connected across the diode R. 240Ω Vo Zener
There are two questions but the one I need answered is the second one, which uses...
There are two questions but the one I need answered is the
second one, which uses the first one as reference.
1. Design a zener shunt regulator to provide a regulated voltage of about 10V. You can use a zener diode of type 1N4740 (such as the 1N4740A-ND sold at digikey.com) A voltage supply Vs with a nominal value of 20V 25% is available. The regulator is required to supply a load current of 0 mA to 20 mA. Design...
5000 10.2 S pts) The Zener diode in the circuit on the right voltage V 20 = 8.5V., and Zener resistancerz the circuit on the right has a Zener d) Find the Thevenin equivalent circuit as seen by lo b) Find the output voltage if a loa Find the output voltage if a load R, is connected and it draws a 1.5 mA current. Determine the value of RL c) How small can the load R, be, while ensuring that...
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...
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
(a) The following circuit shows a linear
voltage regulator. Assuming the zener diode has specifications (VZ
= 2.5 V, IZ = 60 mA), select adequate resistor values to provide a
regulated output voltage Vo = 10 V from an unregulated voltage Vi =
15V.
(b) Calculate the power efficiency of the
regulator when a load RL = 10Ω is connected to the regulator
output.
(c) Briefly explain the terms “dropout”, “line
regulation”, and “load regulation”, as they apply to 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 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...
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...
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...
cic e characteristics: 1,-10 mA at V, = 9V and incremental resistance rd-220 Find the output voltage Vo when a load RL = 1 Kis connected across the diode R. 240Ω Vo Zener
There are two questions but the one I need answered is the
second one, which uses the first one as reference.
1. Design a zener shunt regulator to provide a regulated voltage of about 10V. You can use a zener diode of type 1N4740 (such as the 1N4740A-ND sold at digikey.com) A voltage supply Vs with a nominal value of 20V 25% is available. The regulator is required to supply a load current of 0 mA to 20 mA. Design...
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