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Q. An interesting application of the SRFF is as a buffer in overcoming contact bounce in mechanical switches. These switches, of the toggle type, may be used to change the logic state in a circuit. However, they suffer from a major problem in that their contacts do not close immediately but continue to make and break for some time after. To avoid such an undesirable state (because it causes the logic state of the circuit to fluctuate), an SRFF is placed between the switch and the circuit, as shown in Figure P6.1.50. Explain the operation as a buffer.
Let ω = 2π × 60 rad/s corresponding to a frequency of 60 Hz. (a) Consider v(t) = 100 √2 cos(ωt + 30°) V and i(t) = 10 √2 sin(ωt + 30°) A. Find the corresponding phasors ¯V and ¯
Advantages of BJT over MOSFET: BJTs have some benefits over MOSFETs for at least two digital applications. Very first, in high speed switching, they do not comprises the "large
Q. Describe the construction of a two stage RC coupled amplifier with diagram. A cascaded arrangement of common-emitter transistor stages is shown above. The output Y1 of
Fields Winding It produces the working flux, this is also called exciting winding.
brifly explain capacitance switching
12. A capacitor is to be constructed so that its capacitance is 0.2µF and to take a p.d. of 1.25kV across its terminals. The dielectric is to be mica which, after allowing a safety
What is meant by interrupt? Interrupt is an external signal that causes a microprocessor to jump to a particular subroutine.
Q. Figure can also be considered as a simple model of a magnetically operated relay that is commonly used for the automatic control and protection of electric equipment. Consider t
Q. What is meant by Thermal Runaway? Explain with reference to a transistor.How is it avoided in circuits? The collector current of a transistor increases with increasing tempe
Question: a) For the circuit shown in figure (i) Determine the voltages across R1 and R2 and (ii) Determine the current which flows across R1 and R2. Both D1 and D2 a
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