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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.
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
Let a message signal m(t) have a bandwidth of 10 kHz and a peak magnitude of 1 V. Estimate the bandwidth, by using Carson's rule, of the signal u(t) obtained when m(t) modulates a
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Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:
what is norton''s theorm?
What is interfacing? An interface is a shared boundary among the devices which includes sharing information. Interfacing is the process of making two dissimilar systems communi
Q. Show how a 16-to-1 multiplexer can be used to implement the logic function described by the following truth table.
Q. Give a brief description of differentiating circuits ? Differentiation is a measure of the rate of change. A differentiating circuit produces an output voltag
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Q. Show Typical performance parameters for voltage regulators ? Typical performance parameters for voltage regulators are · Line regualtion · Load regulation · Tempara
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