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Q. Explain Inductorless Filters
Inductorless (Active) Filters
Filters (used to pass or eliminate certain frequency components of a signal) that are suitable for IC fabrication, but which do not contain inductors, are known as active filters. They have the op amp as a common component. Figure 5.4.13 shows the basic op-amp circuit with frequency-dependent impedances. The voltage gain or voltage transfer function of this circuit is given by
with Zi = Ri and Zf = Rf (1/j ωCf ) (i.e., Rf and Cf in parallel). We have a low-pass filter with
is sketched in Figure 5.4.14, from which one can see that at the half-power or 3-dB point of fl, the dc value Rf /Ri goes down by a factor of 1/ √ 2 or 0.707. With Zf = Rf and Zi = Ri + 1/j ωCi (i.e., Ri and Ci in series), we have a high-pass filter for which we obtain
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)
Q. Explain Emergency Repairs to rail fracture? Emergency Repairs - The fractured rails shall be joined by using the arrangements clamps, fish plates. If the gap at fracture doe
Q. The flux-density distribution in the air gap of a 60-Hz, two-pole, salient-pole machine is sinusoidal, having an amplitude of 0.6 T. Calculate the instantaneous and rms value
Flex Routing : You can see that your labour will have been in vain unless you take steps to ensure that flexes are routed safely and well clear of possible sources of danger.
Q. A dc shunt machine has an armature winding resistance of 0.12 and a shunt-?eld winding resistance of 50 . The machine may be run on 250-V mains as either a generator or a mot
What is the properties and application of iron?
For zero flag CZ ( Call on Zero ) CNZ ( Call on no zero ) Instructions CZ call the subroutine from the specified memory location if zero flag is set (Z=1). The i
Q . Explain the working of Positive Clamper? Positive Clamper: The circuit for a positive clamper is shown in the figure. During the negative half cycle of the input signal,
May I know if your site can help me with design a snubber and model the circuit using LTSpice software?
how can i do a question concerning a transfer function
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