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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.
Given an NMOS with gate dielectric thickness Tox = 120A° (SiO2), effective channel mobility µe f f = 1000cm2v-1s-1,channel length L = 15µm, channel width W = 150µm, Si substrate doping NA = 4E16cm-3. Assume Vf b = 0.
Wanting to make optimal use of this shared resource, you make some measurements to determine how many cores your simulation can effectively use. You find that one run of your program takes 36 hours to run on 2 cores and 15 hours to run on 8 cores.
A three-phase, four-wire system operating with a 208-V line voltage is shown in Fig. 12.64. The source voltages are balanced. The power absorbed by the resistive wye-connected load is measured by the three-wattmeter method.
Supporting Activities: Introduction to Modems
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Willy has also noticed that the power supply has a current limit that can be set. When he sets the current limit to 8 amperes, it provides exactly 8 amperes, but it doesn't overheat, so it's not shutting off all the time.
Explain how key performance indicators, portfolio analysis, and scoring models can be used to select information systems projects.
an electric motor draws a current of 10 a with a voltage of 110 v. at the steady-state operation the output shaft
Find the equivalent resistance of the series combination of resistors. Also find VT, V1 and V2. Find the equivalent resistance of the parallel combination of resistors. Also find IT, I1 and I2.
What is the maximum transfer capability of the following system to supply a constant PQ load at 0.8 lag power factor. How much can this transfer capability be increased by installing capacitor banks
An archaeologist finds the 14C in a sample of 3.0 g of material to be decaying at 107 counts per second. A modern 1.0 g sample of the same material decays at 151 counts per second. The half-life of 14C is 5730 years
A TTL gate with VIH (min) = 2.25 V and VIL (max) = 0.65 V is being driven by a gate with VOH (min) = 2.4 V and VOL (max) = 0.4 V. What is the maximum amplitude of noise spikes that can be tolerated on the inputs in both the HIGH and LOW states
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