18. Determine the maximum value of load current at which regulation is maintained for the given circuit. Note that 7805 IC has a Vi(min) -7.3v OUT IN V, (+5 V) 0.81pF 200uF Bridge rectifier...
18. Determine the maximum value of load current at which regulation is maintained for the given circuit. Note that 7805 IC has a Vi(min) -7.3v OUT IN V, (+5 V) 0.81pF 200uF Bridge rectifier
3. For the regulated power supply shown in Figure 5-3, which is a full-wave bridge rectifier containing ter combined with a Zener diode voltage regulator, determine the load voltage VI, load current Ir, source current Is, Zener current Iz and the ripple voltage at the input and output of the regulator, and r(p-p)y respectively, and the ripple frequency fr a fil- VL Ir. Is Iz=. (d-4)1a Ur(p-P) Is V' 1N4002GP Vout = VL + Iz IL 100 V2 120 V...
4.70 A full-wave bridge-rectifier circuit with a 500-22 load operates from a 120-V (rms) 60-Hz household supply through a 6-to-1 step-down transformer having a single Secondary winding. It uses four diodes, each of which can be modeled to have a 0.7-V drop for any current. What is the peak value of the rectified voltage across the load? For what fraction of a cycle does each diode conduct? What is the average voltage across the load? What is the average current...
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Question 1 Consider the following circuit, where the reverse saturation current (Is) is the same for each diode. D2 o Vo Di Vi WWW R 32 23 a. b. Determine an algebraic expression for V1, for a given Vo, and Is. Given an Is of 40 FA and R1 = 3.3 kl , determine the Vi that produces an output voltage (V.) of 0.625 V. C. Recalculate question-b if Is were to be a thousand times greater at...
D Question 2 10 pts A three phase full-bridge rectifier draws 12-kW from a power supply that has 150-V phase-to-phase voltage. The power factor is 0.77. What is the maximum (peak) value of the current delivered by the supply? 10 pts DI Question 3 A full bridge, square wave inverter supplies an RL load with R-7-Ohm and L-58-mH. The DC voltage is 90-V and the output waveform frequency is 60-Hz. What is the magnitude of the third harmonic of the...
18–40E A solar cell has an open circuit voltage value of 0.60 V with a reverse saturation current density of J. = 4.11 X 1010 A/ft?. (a) For a temperature of 75°F, determine the load voltage at which the power output is maximum. (b) If the solar irradiation is 220 Btu/h.ft?, determine the effi- ciency of the solar cell at a load voltage of 0.56 V. (c) Determine the cell area, in ft?, for a power output of 500 W...
5x3 +7x-4 2. (a) A diode allows the flow of current only in one direction which is used as a half wave rectifier. For a real diode, the voltage v, across the load Ri is given by: [10) v.- vs-0.6 if vs > 0.6 if vs >0.6 the supply voltage is: vs (t-3 e-t/3 sin(nt) where t is in seconds. Using if, if'else write a MATLAB program for plotting the voltage vi, versus t for osts8
5x3 +7x-4 2. (a)...
Design a FULL WAVE BRIDGE RECTIFIER circuit that will:
Take 120volts ac, 60 hz, sinusoidal waveform and convert
it to a “regulated “dc value
giving 12 volts +, - 1 volt across a 2000-ohm output
load resistor with no more than 2%
ripple voltage.
You may assume:
a. An ideal power transformer as discussed in class.
b. For hand computations, you must assume a diode given by
Figure 4.8 page 185.
c. A filter capacitor sized per the textbook equation...
4. The MOSFET in the circuit given below has Vi- 1 V, kn 0.8 mA/V2, and VA 40 V a) Find the values of Rs, Ro, and Ro so that Io -0.1 mA, the largest possible value for RD is used while a maximum signal swing at the drain of tl V is possible, and the input resistance at the gate is 10 MS2. b) Find the values of gm and ro at the bias point c) If terminal Z...
a9a resistive load. Inductor 3-(35 pts) Design a converter that has an input voltage of 24 V DC and supplies 18 V DC to current is desired to be continuous and must not change more than 30 % of its average value voltage ripple must be lower than 2 %. Switching frequency is 10 kHz. a) Draw the circuit diagram. Calculate the duty ratio. Calculate values for 2 desired conditions of the inductor current and determine the value of the...