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An a.c. supply of 230V is applied to a half-wave rectifier circuit through transformer of turns ration 5:1. Assume the diode is an ideal one. The load resistance is 300Ω.Find (a) dc output voltage (b) PIV (c) maximum, and (d) average values of power delivered to the load.
A communication system must transmit the following real valued signal: v(t) = 4cos(2pi*10MHz*t) + 2cos(2pi*20MHz*t)+cos(2pi*30MHz*t)V For this signal, sketch the positive-frequency power specturm P(f>0)
Write the formula for the magnetization volume current density J M and magnetization surface current density JMS in terms of magnetization vector M. 4. A sphere has permanent magnetization where is a positive constant.
A circular loop TV antenna with 0.02 m2 area is in the presence of a uniform amplitude 550 MHz sinosoidal signal. When oriented for maximum response, the loop develops an emf with a peak value of 30 mV.
A ring conductor of radius 1 m is located on the xy-plane, centered at (0, 0, 0), and carries a current of 1 A in the counter-clockwise direction. A line conductor parallel to the y-axis and passing through (1, 0, 1) carries an unknown current I.
Consider the following 2-input (x1,x2) single-output (z) asynchronous circuit: The output changes from 0 to 1 only when x2 changes from 0 to 1 while x1 = 1. The output changes from 1 to 0 only when x1 changes from 1 to 0 while x2=1.
This solution shows how to work from a given circuit implementation (a J-K flip flop circuit design) to derive the Boolean Logic and in so doing so simplify such logic using Boolean Algebra rules
An 8 bit unipolar Successive Approximation Register type ADC is used to convert 3.5V to digital equal output. The reference voltage is +5V - The output of ADC at end of 3rd clock pulse after the start of conversion
"Divide by 3 clock with 50% duty cycle" is the most commonly asked ASIC design question. This solution gives a simple design in which only 1 counter is required which works only on positive edge of the clock.
The output should have an adjustable linear output voltagerange of between 0 to 5 V and be capable of supplying a current of150 mA throughout the voltage range. The design should include acircuit schematic and provide complete specification of all..
An LED is connected to a 74LS244 in an active-LOW configuration. The key parameters for the 74Ls244 are IOH=-15 mA, IOL=20 mA, VOH =2.0V and Vol=0.5V. The LED has a voltage drop of 2.0V and an operating current of 15 mA.
Consider a VLSI chip with 100,000 gates and 2000 flip flops. A combinational ATPG program produces 500 vectors to fully test the logic. Find the minimum number of scan test cycles if 20 scan chains are implemented.
If a constant voltage drop of 16 V is maintained across an inductance of 140 mH that was initially carrying 1.6 A of current, how much time elapses before the inductor's stored energy reaches 590 mJ?
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