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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
A 150 km long, 3-phase, 400 kV overhead line is used to transmit 1800 MW to a distribution area at 0.9 power factor lagging. The line parameters per phase and per unit length in st
Instruction size As we have seen already that each instruction has two parts Opcode ( Operation Code) Which tells the types of operation to be performed .
Q. Give a general account of common drain amplifier? The output is taken over the source terminal and when the dc supply is replaced by its short circuit equivalent, the drain
Calculate power delivered to the network: 1. A wave is traveling from left to right, emerging from Z g =50 with a peak amplitude of V p =5V. The 1-port network [S] has in=0.5-
A color television receiver is shown in Figure in block diagram form, indicating only the basic functions. The early part forms a straightforward superheterodyne receiver, except f
Basic Operations of 8085 Microprocessor The 8085 microprocessor performs followings five basic operations . 1. Opcode Fetch : Reading and decoding operation code of
Switching Characteristics Switching characteristics of BJT are shown in figure. Due to the presence of internal capacitances BJT cannot be turned instantly. Initially
1) Draw the state diagram for the state machine described by Table 7.5 in the text. Note, the table shows the transition to the next state S* from the current state S for the next
Calculate the current flow in 30Ω resistor for the circuit in figure using Thevenin's Theorem.
Summation Meters Summation meters are other special categories of meters that are used for recording the total consumption of a consumer fed at more than one point. The major
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