Question

In: Electrical Engineering

There are available voltage amplificators with Avoc = 8 V/V, Rin = 1.8 kΩ, Ro =...

There are available voltage amplificators with Avoc = 8 V/V, Rin = 1.8 kΩ, Ro = 850 Ω. With a DC power source of 12 V, every amplificator consumes 1.5 mA of current average.
A. How many amplificators are needed to be connected in cascade to obtain a gain of at least 1000 Volts with a charge Resistance of 1.0 kΩ?
B. What is the AV voltage gain obtained ?
C. For the cascade connection find the voltage gain in an open circuit.
D. If we have a in of 1.5 mV, what is the efficiency of the equivalent amplificator ?
E. Find the transconductance of the whole circuit.

Solutions

Expert Solution


Related Solutions

Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro = 850 Ω. With a 12V DC power source, each amplifier consumes 1.5 mA average current. a. How many amps do you need to cascade to get so minus a voltage gain of 1000 with a load resistance of 1.0 kΩ? b. What is the voltage gain Av obtained? (Answer with an integer number rounded) c. For the cascade connection, find the open circuit...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro = 850 Ω. With a 12 V DC power source it consumes 1.5 mA average current. to. a. How many amplifiers do you need to cascade to get at least a 1000 voltage gain with a load resistance of 1.0 kΩ? b. What is the effective voltage gain Av obtained? (Respond with a whole number - rounded -) c. Find the Open Circuit Voltage...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro = 850 Ω. With a 12V DC power source, each amplifier consumes 1.5 mA average current. a. How many amps do you need to cascade to get so minus a voltage gain of 1000 with a load resistance of 1.0 kΩ? b. What is the voltage gain Av obtained? (Answer with an integer number rounded) c. For the cascade connection, find the open circuit...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro...
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro = 850 Ω. With a 12V DC power source, each amplifier draws 1.5 mA average current. a) How many amplifiers do you need to cascade to get at least a voltage gain of 1000 with a load resistance of 1.0 kΩ? b) What is the voltage gain Av obtained? (Respond with a rounded whole number) c) For the cascade connection, find the voltage gain...
A 36 V battery of negligible internal resistance is connected to a 47 kΩ and a...
A 36 V battery of negligible internal resistance is connected to a 47 kΩ and a 21 kΩ resistor in series. a). What reading will a voltmeter, of internal resistance 95 kΩ , give when used to measure the voltage across the first resistor? Express your answer using two significant figures. V47 kΩ= b). What is the percent inaccuracy due to meter resistance for each case? Express your answer using two significant figures. V not ideal−V ideal/V ideal= c). What...
A 1.8 kΩ resistor draws 12 mW when placed across the terminals of an ideal battery....
A 1.8 kΩ resistor draws 12 mW when placed across the terminals of an ideal battery. a) Determine the current drawn by the resistor. b) Determine the emf provided by the battery. If a second resistor (resistor B) were placed in parallel with the resistor described above (resisitor A), how would the following quantities change? c)he voltage across resistor A smaller unchanged larger d) The current through resistor A smaller unchanged larger e) The resistance of resistor A smaller unchanged...
A three-phase asynchronous motor with squirrel cage rotor is available with: Voltage: 230/400 V Frequency: 50...
A three-phase asynchronous motor with squirrel cage rotor is available with: Voltage: 230/400 V Frequency: 50 Hz Number of Poles: 10 In addition, the following parameters of the equivalent circuit are known: R1 = 0.5  X1 = 3  R´2 = 0.8  X´2 = 3.5  Mechanical losses are considered to be negligible and the parallel branch of the equivalent circuit. 1. Draw the approximate equivalent circuit of the motor without the branch in parallel. 2. Indicates the...
diameter age 1.8 4 1.8 5 2.2 8 4.4 8 6.6 8 4.4 10 7.7 10...
diameter age 1.8 4 1.8 5 2.2 8 4.4 8 6.6 8 4.4 10 7.7 10 10.8 12 7.7 13 5.5 14 9.9 16 10.1 18 12.1 20 12.8 22 10.3 23 14.3 25 13.2 28 9.9 29 13.2 30 15.4 30 17.6 33 14.3 34 15.4 35 11 38 15.4 38 16.5 40 16.5 42 The data table below gives the diameter and age of 27 trees that were cut down to make open space for a playground. Diameter...
In Europe the standard voltage in homes is 220 V instead of the 120 V used...
In Europe the standard voltage in homes is 220 V instead of the 120 V used in the United States. Therefore "100-W" European bulb would be intended for use with a 220-V potential difference. (a) If you bring a "100-W" European bulb home to the untied States, what should be its US power rating? (b) How much current will the 100-W European bulb draw in normal use in the United States? [Answers: 29.8 W, 0.248 A] The answers are provided....
Problem 4. A high-voltage power supply should have a nominal output voltage of 350 V. A...
Problem 4. A high-voltage power supply should have a nominal output voltage of 350 V. A sample of four units is selected each day and tested for process-control purposes. The data (see sheet Problem4 in Homework 4.xlsx) give the difference between the observed reading on each unit and the nominal voltage times ten; that is, ?? = (observed voltage on unit ? - 350)*10 (a) Set up ?̅ and ? charts on this process. Is the process in statistical control?...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT