1. For a transformer output of 18 V and a filter capacitor of 250 mF, calculate the minimum inputvoltage when connected to a load drawing 400 mA. What is the output volage of the IC regulatorcircuit in Fig.1? The manufacturer's specification sheets of 7800 series is provided in the tablebelow.120 V rms000000000000V-18 VINOUT7808C=0.01μF250 μFGNDVo=?Fig. 1 IC regulator circuitTable 1 Voltage Regulators in the 7800 SeriesIC PartOutput Voltage (V)Minimum V; (V)7805+57.37806+68.37808+810.57810+1012.57812+1214.67815+1517.77818+1821.07824+2427.1

Step 1: Step 2: Step 3: Step 4:

Answered: 1. For a transformer output of 18 V and…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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3. Determine Veand Sketch output waveform for the clamper network shown. 20 V Si C Vi R 4 V- | -20 V 4. An RC filter stage (R = 42 0, C = 220 µF) is used to filter a signal of 30 V dc with 6 V rms operating from a full wave rectifier. Calculate the percentage ripple at the output of the RC Section for a 200-mA load. Also calculate the ripple of the filtered signal applied to the RC stage.
A Capacitor filter is used at the output across the load in order to minimize the ripple factor of the output voltage. The expressions of the average output voltage Vpc and the output AC component VAc are given below. If R = 1k2 and the single phase bridge rectifier supplied from a 120V - 50 Hz sinusoidal source, then the capacitor value that will maintain the amount of the output ripples to less than 4% would be equal to: VDC = Vm(4FRC – 1)/4ƒRC) VAC = Vm/(4/2ƒRC) Select one: O a. 63.39uF O b. 33.2uF O c. 93.39UF O d. 126.2uF TOSHIBA
Determine the peak-to-peak ripple voltage in a brigde rectifier filter capacitor given that: Vp(rect) =10 , RL = 100 Ω, f = 500 Hz, C = 1000 μF: Select one: a. 0.25 V b. 0.10 V c. 0.20 V d. 0.35 V e. 0.15 V
The average (DC) value of a half-wave rectified voltage with a peak value of 200 V is: a. 63.7 V b. 127.3 V c. d. OV 141 V 2. Voltage regulation is determined by: a. load current b. Zener current and load current c. changes in load resistance and output voltage d. changes in no-load voltage and full-load voltage When a 60-Hz sinusoidal voltage is applied to the input of a full-wave rectifier, the output frequency is: a. 120 Hz b. 60 Hz c. 240 Hz d. 0 Hz
For the below given circuit, a step-down transformer is used with a root mean square voltage equal VRMS = 270/40 The input frequency is 110 Hertz, R= 5.2 k2, all diodes used are silicon diodes. %3D D3 1) Find a) The peak Input voltage Vpin (in volts): in volts): b) The peak output voltage Vpout (in volts): c) The Average output voltage Vavg (in volts): d) The current across the load resistance( in milliampere): eleee
D1 D V1 D4 D2 V D D Diode Model: 1N5817 R = 10k Vi= sine (0 5 100) Given the parameters above, simulate the given circuit using .tran 0 30m 0. Solve for the output peak to peak voltage across the resistor and the output frequency measured across the resistor. Output Frequency = (When computing for the frequency, use 4v as reference point) Output Voltage (pk-pk) = + R1 R D3 D
A boost regulator has L=0.15 mH and C=0.11 mF with a duty cycle of 0.66 at a switching frequency of 50 kHz. The average load current is la=0.5A. The maximum ripple output voltage is: Select one: a. None of these b. 1.6V C. 2.6V d. 0.6V
For the following zener clipper draw the output waveform Vz1 = 5V, Vz1 = 7V VK = 0.8v lkn ISV V₁₂ 5V 2, 72. -5V Q2 Determine The Output Waveform And Calculate The current and PIV 1kQ 1kQ 10 V 10 si www www Q. For the circuit shown in Figure below (1),find the maximum and minimum values of zener diod current. Live 5 ΚΩ www I IL 15 80-120 V 10 ΚΩ LIR 101 102 1015 S Ne 1 k0 www Iz 50 V U2 -ot V. Fumal inash
I want to design an oscillator for a PWM supply. It will run with a square wave of 75 KHz. Voltage is 15VDuty Cycle about 50%. Hint: Choose values of resistor, and then calculate capacitor for the frequency. Draw the circuit. Show the calculations.
A boost converter has an input voltage Vb-5V. The average load current is lo-0SA. The switching frequency is 25 kHz. Suppose that a regulator is added (L=0.15 mH and C-0.22 mF) and that the current is continuous. if the average output voltage is Vo =15V, then the ripple current of the inductor delta) is equal to: Select one: O a. None of these O b.0.89A O C. 1.41A O d. 0.56A
Write the loop equations for a Buck converter in the two modes if the inductance is characterized by a combination of inductance L1 in series with an equivalent resistance r1, filter capacitance is characterized by a capacitor C1 in series with resistance r2. Also assume that the controlled switch has a drop of 0.4V and the freewheeling diode has a voltage drop of 0.65v. Draw the corresponding equivalent circuits in each mode.
A boost converter is required to have an output voltage of 8 V and supply a load current of 1 A. The input voltage varies from 2.7 to 4.2 V. A control circuit adjusts the duty ratio to keep the output voltage constant. Select the switching frequency. Determine a value for the inductor such that the variation in inductor current is no more than 40 percent of the average inductor current for all operating conditions. Determine a value of an ideal capacitor such that the output voltage ripple is no more than 2 percent. Determine the maximum capacitor equivalent series resistance for a 2 percent ripple.

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