Zener Diode as an Voltage Regulatorz A 1N756 (8.2 V at 25 C) is used as...
(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...
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...
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...
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...
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...
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,...
All the diodes used in the circuit are silicon. Zener voltage of D2 diode is given as 8 V and zener voltage of D4 diode is given as 5.6 V. Applied input voltage is determined as Vin = 20 sin (ωt) V. Draw the change of the output voltage of the circuit according to the applied voltage by analyzing the circuit. (Correct drawings made without analysis will not be evaluated. Simplified model of diode element will be used.) D3 Vou...
All used in the next circuit diodes are silicon. Zener of diode D2 the voltage is 8 V, the zener voltage of the D4 diode is 5.6 V It is given as. Applied input voltage Vin = 20 sin (ωt) is determined as V. Output of the circuit voltage changes according to the applied voltage of Vin Analyze the circuit and draw it. (Simplified of diode element model will be used.) (I can't analyze. Please explain) R + D D3...