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1. For the flyback converter operating in the discontinuous "current" (flux) mode, derive an expression for the time at which the magnetizing current returns to zero.
2. A forward converter with a demagnetizing winding is designed to operate with a maximum duty cycle of D = 0.7. Calculate the voltage rating of the switch in terms of the input voltage.
Q. A six-pole, double-layer dc armature winding in 28 slots has five turns per coil. If the field flux is 0.025 Wb per pole and the speed of the rotor is 1200 r/min, find the value
Design and draw a circuit using the cascade system to operate two cylinders (A and B) which, on the operation of a start valve, produces the sequence A – B + B – A+. The cylinders
If aluminium and copper pipes are of same length and diameter ... same magnet dropped through them...in copper it takes more time to come out of other end, i myself have done this.
find the resultant of two forces 20N and25N acting at an angle 60 degree each other
Turn-on, turn-off, and storage delay: The Bipolar transistor shows a few delay characteristics while turning on and off. Most of the transistors, and particularly power transi
Q. What is balanced discriminator? A balanced discriminator with the corresponding frequency characteristics is depicted in Figure. The rising half of the frequency characteris
Calculation of Receiving End Voltage Consider the simple circuit shown in Figure. To find the voltage V 2 using analytical method: P = I V 2 = 0.5 ..... (1)
The mobility of free electrons and holes for pure silicon are 0.13 and 0.05 m2/V-S respectively. Find the intrinsic conductivity for silicon. Assuming ni = 1.5x 1016/cm3 at room te
Bi Directional Buffer 74LS245 This types of bi directional buffer is required for data bus as it has to function as bi directional bus. The logic diagram of such buffer i
Q. Explain the action of a pn-junction with bias. Consider both the forward bias and the reverse bias, and use sketches wherever possible.
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