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Question 22 The Zener diode 1N4744A, shown in the figure, has Vz=15 V, IZK = 0.25...
(c) A loaded zener regulator is shown in Figure 3. Given Vz= 5.1 V at, Iz...
(c) A loaded zener regulator is shown in Figure 3. Given Vz= 5.1 V at, Iz = 49 mA, Izk= 1 mA, Zz = 72 and Izm= 70 mA. [Satu pengatur beban zener ditunjukkan di dalam Rajah 3. Diberikan V2 = 5.1 V, Iz = 49mA, Izx = 1mA, 2-7 dan Izm = 70mA.] i) Calculate the minimum and the maximum load currents for which the zener diode will maintain the regulation. [Kirakan nilai minima dan maksima arus beban untuk...
2. Sketch a zener diode circuit with above FWR, and Vz-9v, Izk-0.1mA, and IzM 50mA, assume ideal zener diode with ZZF0Ω. For zener diode maintaining regulation, Calculate: a. Rs minimum b....
2. Sketch a zener diode circuit with above FWR, and Vz-9v, Izk-0.1mA, and IzM 50mA, assume ideal zener diode with ZZF0Ω. For zener diode maintaining regulation, Calculate: a. Rs minimum b. RL, minimum c. For RL=120Ω, determine VL and IL, is the Zener diode in the Zener mode? d. Pz (15) 2Vrms F 2002 2. Sketch a zener diode circuit with above FWR, and Vz 9v, Izk-0.1mA, and IzM 50mA, assume ideal zener diode with ZZF0Ω. For zener diode maintaining...
Consider a zener diode with the model shown. Not that Vz and Rz are known. a)...
Consider a zener diode with the model shown. Not that Vz and Rz
are known.
a) Find an expression for the current through and the voltage drop
on the diode
-for no load (RL=infinity)
-for a given finite load RL.
b) Find the numerical values of current through and voltage on
the diode in the presence and absence of a load when:
Vb=12V Vz=4V Rs=1kΩ Rz=40Ω RL=1kΩ
uitu the Nuo d Shown Rz tue eradt thkough aud Rs and UO
(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...
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
50012 V R 2. (15 points) The Zener diode in the circuit has a voltage Vzo...
50012 V R 2. (15 points) The Zener diode in the circuit has a voltage Vzo = 8V. When the diode current is 10mA, the voltage across it is V = 8.25 V. The supply voltage is: Vpc = 15 V a) Find the small resistance rz of the diode. b) Replace the diode by its model, and find the Thevenin equivalent circuit to the left of the load RL c) Find the voltage V, across the load for two...
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...
Table 1: Zener Diode Parameters Description Quantity Value 1.0 W Po Absolute maximum power dissipation Typical...
Table 1: Zener Diode Parameters Description Quantity Value 1.0 W Po Absolute maximum power dissipation Typical zener voltage 5.6 V Minimum zener (knee) current 1.0 mA 45 mA Typical zener current Maximum zener current IZM Zz Zener impedance Zener knee impedance 179 mA 52 600 22 25 °C ZzK ΤΑ Rated ambient temperature 1N4004 Rs = 100 22 220 uF 1N4734A Transformer Vs = 12.6 VRMS 1N4004 60 Hz 2. Going back to Figure 1, remove the load resistance (or,...
The circuit above is a Zener voltage regulator using D1N750 zener diode with Vz=4.7V: 1. Calculate...
The circuit above is a Zener voltage regulator
using D1N750 zener diode with Vz=4.7V:
1. Calculate the minimum value of E in order to have the voltage
across RL regulated VL=Vz
2. Using Orcad PSpice schematics, simulate the
circuit using bias point and find Iz, IL, Is and Vz (the circuit
must have all voltages and currents values shown).
3. Using Orcad PSpice schematics, use DC sweep to
vary RL from 200 ohm to 1000 ohm and plot VL (for...
Ps: Im not sure on my answers mo VIN + SRL 187 **Note: R = 470...
Ps: Im not sure on my answers
mo VIN + SRL 187 **Note: R = 470 ohms A loaded zener regulator, shown in the figure has Vz=18 V at Izra 18 mal At FULL LOAD a. minimum zener output voltage, VZ(out)FL = ma b. total current at full load, IT(FL) = 12.7660 ma c.maximum load current L(max) = 11.266 ohms d. minimum load resistance. RL(min) - 1065.1518 at NO LOAD e maximum zener output voltage Vzout)NL = total current at...
(c) A loaded zener regulator is shown in Figure 3. Given Vz= 5.1 V at, Iz = 49 mA, Izk= 1 mA, Zz = 72 and Izm= 70 mA. [Satu pengatur beban zener ditunjukkan di dalam Rajah 3. Diberikan V2 = 5.1 V, Iz = 49mA, Izx = 1mA, 2-7 dan Izm = 70mA.] i) Calculate the minimum and the maximum load currents for which the zener diode will maintain the regulation. [Kirakan nilai minima dan maksima arus beban untuk...
2. Sketch a zener diode circuit with above FWR, and Vz-9v, Izk-0.1mA, and IzM 50mA, assume ideal zener diode with ZZF0Ω. For zener diode maintaining regulation, Calculate: a. Rs minimum b. RL, minimum c. For RL=120Ω, determine VL and IL, is the Zener diode in the Zener mode? d. Pz (15) 2Vrms F 2002 2. Sketch a zener diode circuit with above FWR, and Vz 9v, Izk-0.1mA, and IzM 50mA, assume ideal zener diode with ZZF0Ω. For zener diode maintaining...
Consider a zener diode with the model shown. Not that Vz and Rz
are known.
a) Find an expression for the current through and the voltage drop
on the diode
-for no load (RL=infinity)
-for a given finite load RL.
b) Find the numerical values of current through and voltage on
the diode in the presence and absence of a load when:
Vb=12V Vz=4V Rs=1kΩ Rz=40Ω RL=1kΩ
uitu the Nuo d Shown Rz tue eradt thkough aud Rs and UO
(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...
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
50012 V R 2. (15 points) The Zener diode in the circuit has a voltage Vzo = 8V. When the diode current is 10mA, the voltage across it is V = 8.25 V. The supply voltage is: Vpc = 15 V a) Find the small resistance rz of the diode. b) Replace the diode by its model, and find the Thevenin equivalent circuit to the left of the load RL c) Find the voltage V, across the load for two...
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...
Table 1: Zener Diode Parameters Description Quantity Value 1.0 W Po Absolute maximum power dissipation Typical zener voltage 5.6 V Minimum zener (knee) current 1.0 mA 45 mA Typical zener current Maximum zener current IZM Zz Zener impedance Zener knee impedance 179 mA 52 600 22 25 °C ZzK ΤΑ Rated ambient temperature 1N4004 Rs = 100 22 220 uF 1N4734A Transformer Vs = 12.6 VRMS 1N4004 60 Hz 2. Going back to Figure 1, remove the load resistance (or,...
The circuit above is a Zener voltage regulator
using D1N750 zener diode with Vz=4.7V:
1. Calculate the minimum value of E in order to have the voltage
across RL regulated VL=Vz
2. Using Orcad PSpice schematics, simulate the
circuit using bias point and find Iz, IL, Is and Vz (the circuit
must have all voltages and currents values shown).
3. Using Orcad PSpice schematics, use DC sweep to
vary RL from 200 ohm to 1000 ohm and plot VL (for...
Ps: Im not sure on my answers
mo VIN + SRL 187 **Note: R = 470 ohms A loaded zener regulator, shown in the figure has Vz=18 V at Izra 18 mal At FULL LOAD a. minimum zener output voltage, VZ(out)FL = ma b. total current at full load, IT(FL) = 12.7660 ma c.maximum load current L(max) = 11.266 ohms d. minimum load resistance. RL(min) - 1065.1518 at NO LOAD e maximum zener output voltage Vzout)NL = total current at...
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