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A power amplifier employs an output stage whose gain varies from 2 to 12 for various reasons. What is the gain of an ideal (non varying) amplifier connected to drive It so that an overall gain with feedback of 100 ± 5% V/V can be achieved? What is the value of beta to be used? What are the requirements if Af must be held wlthm ±0.5 %? For each of these situations, what preamplifier gain and feedback factor beta are required if Af is to be 10 V/V (with the two possible tolerances)?
The amount of three phase power to be delivered in kW is equal to the total number of letters in your name (first name +last name) and the single phase power is 10% of three phase power. Assume same power factor for both types of loads.
An amplifier represented with an input resistance of 10k ohm, an output resistance of 1k ohm, and the open circuit voltage gain of 1000 V/V is connected to a signal source of 10 mV peak amplitude with an internal resistance of 100k ohm.
How to decide the shortest possible clock period for a synchronous circuit with the flop-based clocking. What is the hold time of a register. How does the hold time constrain the circuit delays for a synchronous circuit.
Given a geostationary satellite with 36,000 km altitude, a downlink frequency of 4 GHz and a ground receiver with a 1/3 m diameter dish.What is the satellite transmitter's EIRP in order for a 1 pW input to the ground receiver
Each subconductor's radius is 10 cm. There are two configurations, the first one is setting subconductors A and B as a bundle, and C and D as another bundle; the second is setting subconductors A and C as a bundle, and B and D as another bundle.
A control system is needed to control a small shopping center parking lot lighting system and the exterior lighting for the building. The design specifications require that the parking lot lighting and the exterior lighting turn on at dusk automat..
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.
A current amplifier with R=9 kohm Ro=1 kohm and Ais=100 is connected between a 8 V voltage source with a source resistance of Rs=1 Kohm and a load resistance of RL=9 Kohm.
Add Z1 = 3ej30 degree and Z2 = 4e -j60 degree together. Write your result in both rectangular and polar form. In polar form, indicate whether your angle is in radians or degree s. Multiply Z1 = -2 + j3 and Z2 = 4 + j2 together.
A 10m diameter cylindrical tank is emptied by a constant outflow of 1 m3 /min. A two position controller is used to open and close a fill valve with an open flow of 3 m3 /min. For level control the neutral zone is 1m and the setpoint is 10m.
Assume we have a toroidal coil with a rectangular cross section, with an inner radius 1 cm, an outer radius 2 cm, a height of 1 cm and 1000 turns. The coil is connected to a resistor of 500 ohms. An AC current I(t) = Io cos(wt)
A tollgate (vending machine) controller accepts only nickels (5c), dimes (10c), and quarts (25c), and generates control signal to actuate the lever to open the tollgate (or dispense a chosen item in case of vending machine) once 35c or more are re..
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