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Consider the modified Schottky TTL NAND gate shown in Figure. The current gain of all transistors is β = 20.
(a) Assume vX = vY = vZ = logic 1 and assume two similar type load circuits are connected to the output. The transistor Q2 is biased in saturation with iB2 = 0.1 mA and iC2 = 0.2 mA. Determine the values of RB1 and RC1.
(b) Using the results of part (a), and assuming vX = 0.4 V and vY = vZ = 1.8 V, determine vB1, vB2, vO , and all base and collector currents. Assume two similar type load circuits are connected to the output.
(c) Assume vX = vY = vZ = logic 1 and assume four similar type load circuits are connected to the output. Using the results of part (a), determine vB1, vB2, vO , and all base and collector currents.
(d) Determine the maximum fanout for a low output state.
The bolts are of 22-mm diameter and are spaced longitudinally every 120 mm. Knowing that the beam is subjected to a vertical shear of 240 kN, determine the average shearing stress in each bolt.
Suppose that random samples of size 36 are repeatedly drawn from a population with mean 28 and standard deviation 9. Describe the sampling distribution X var.
if you had a calculated quality from specific volume data and you were asked to write down the equation for specific internal energy and had to find use a given specific internal energy (or specific enthalpy) and use to get a specific volume.
A speaker can be modeled as an inductor LS (the coil that generates the magnetic field to move the speaker diaphragm) in series with a resistor RS (resistance associated with the coil wire, as well as the energy lost to the acoustic output the spe..
Demonstrate an understanding of a variety of electronic circuits including power supplies operational amplifier circuits and digital to circuits - Demonstrate the application of numerical skills to the solution of problems relating to digital and ..
The voltages at the generators buses are maintained at a magnitude of 1.0pu. The generator one (G1) is connected to bus 1. The generator two (G2) is connected to bus 2. The bus angle at bus 2 is taken as reference and is 00.
Make a transfer function with numerator p(s) and denominator q(s)that will separate only the 3cos(4t) portion from the noise corrupted function: u(t) = sin(25t) + 3cos(4t) + n(t) wheren(t) is random noise. The degree of the polynomial on the denom..
A 2-wire DC distributor PQ is 500m long. It is supplied by three feeders entering P, Q and R where R is midway between P and Q. the resistance of the distributor, go and return, is 0.5W/km.
If a particular message sample has a quantized level of 22, what number string would be transmitted if the numbers are coded into binary pulse strings?
Calculate the theoretical AC voltage gain of the first stage. The DC analysis should provide the operating point of Q1, Q2 and the collector, emitter and base voltages of transistors Q1 and Q2
Determine the primary current when rated current in the 230 volt winding is at unity power factor and the rated current in the 575 volt winding is at .5 pf lagging. Neglect all leakage impedance drops and magnetizing current.
a 500kva 3-phase 50hz transformer has a voltage ratio of 33/11kv and is delta/star connected. the resistances per phase are high voltage 35v,low voltage 876v and the iron loss is 3050w.
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