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A second-order PLL is implemented with a non ideal loop filter: H(s) = (s+a)/(s+b) in which b > 0 is very small.
(a) Applying small-signal analysis, determine the transfer function between Oe(s) and Oi(s).
(b) Find the steady state PLL phase error for an incoming phase Oi(t) = (w0 - wc)t + a0
An active-loaded NMOS differential amplifier operates with a bias current I of 100 microamperes. The NMOS transistors are operated at Vov=0.2 V and the PMOS devices at |Vov|=0.3V. The Early voltages are 20 V for the NMOS
Design (simulaton, analysis), build and test an op-amp based instrumentation amplifier with the following specifications: (a) Have very high input resistance (minimum is 1 Mega Ohm). (b) Have very high voltage gain (minimum 1000V)
The Russian president and the Chinese counterpart need to come to an agreement by telephone. Neither can speak and understand each other's language. They need to employ translators. Compare this layered communication to OSI layers
A 3kw, 120V, 2400 rpm shunt motor has an armature resistance of 0.4 ohms and a shunt field resistance of 160 ohms. The motor operates at full load. The no load current is 2A. If an external resistance of 2.5 ohms is insertions in the armature circ..
A p-type wafer has a diffused Phosphorous n-type junction with a junction depth of 0.15µm. a) If the wafer (no pre-existing oxide) is to be oxidized at 1000 C for two hours to form a ‘dense.
A wattmeter connected into the line gives a reading of 2765W. If a capacitor have a reactance of 30ohms is connected in parallel with the motor. Calculate the total reactive power absorbed by the capacitor and motor.
Consider a vector field, F(r,theta,phi)= ar*cos^2(theta)/r^2 for the volume V of a spherical shell, centered at the origin,with inner and outer radii 1 and 2 meters. a) Evaluate triple integral delta.F dv over v. b) Calculate also the closed surface ..
A charged 100-pf capacitor has initial voltage across it of 10V. a 100kohm resistor is suddenly connected across the capacitor (at t=0) to discharge it. What is the magnitude of the instantaneous current at 20 usec?
Find the density for germanium (Ge) semiconductor atoms give that its lattice constant a-5.66Å (Angstrom) and atomic weight is 72.59 g/mole.
In a balanced three-phase wye-wye system, the load impedance is 10+j10 ohm. The source has phase sequence abc and the line voltage Vab= 220
An overhead line conductor is supported at water crossing from two towers, the heights of the supports being 30 and 34.2 m respectively , above the water level , with a horizontal span of 325 m.
the energy stored in a 4H inductor is 150J and is increasing at 200J/s at t=4s 1. determine the current magnitude at t=4s 2. determine the current voltage at t=4s 3. does the current enter or leave the positive terminal of the inductor
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