Provide the circuit schematic of a Doherty power amplifier
designed for a peak efficiency at 10dB back-off. Briefly explain
the need for output offset lines in the carrier and peaking
amplifiers paths.

In: Electrical Engineering

A 240 V DC shunt motor draws 40 A while driving a constant torque load. The armature resistance is Ra = 0.2 Ω, the field resistance is Rf = 240 Ω and machine constant is Ka = 120. The part of magnetization characteristic (field flux versus field current) related to the question is:

If (A) : 0.70 0.80 0.86 0.90 1.00 1.10 1.20 1.30 1.40

ϕ (mWb) : 5.80 6.30 6.59 6.70 7.20 7.60 7.96 8.20 8.45

The constant rotational loss is 240 W and the armature reaction is neglected. Find

a. the internal torque developed by the motor

b. speed

c. efficiency

In: Electrical Engineering

A bandpass series filter has parameter values of R=150Ω , C=2μF
and

L=3mH . The filter is energized with a voltage source which has
an

internal resistance equal to 100Ω.

Using Matlab, write a code to print Bode magnitude plots for the
filter transfer function by

itself and the transfer function of the filter modified by the
source resistance?

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Express the following two base 10 numbers in binary using the IEEE 754 single-precision floating point format (i.e., 32 bits). Express your final answer in hexadecimal (e.g., 32’h????????).

a) 68.3125

b) -19.675

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Q1.

What is Laplace transform and why do we use it in circuit

analysis.

In: Electrical Engineering

Design an application or problem using the derivative of a wavelength or form?

Why is Calculus important to Engineering?

In: Electrical Engineering

What is the use of open drain on a GPIO output pin?

In: Electrical Engineering

Propose an adjustable voltage source based on LM7805.

Requirements:

Adjustment from 5 to 15V. Maximum current 3A.

Short protection for the 7805 when> 1A.

Draw the complete circuit with the requirements

In: Electrical Engineering

Rexlex klystron (step-by-step)

a-) Explain the process of grouping electrons in a reflector klystron.

b-) Explain the mechanism of electronic frequency tuning in reflective klystron.

c-) What does the mean balance of phase in reflex klystron?

d-) Why the maximal efficiency of reflex klystron corresponds to X=2.4? How we can prove it?

In: Electrical Engineering

draw, for values of x between -2 and +2, f(x) = x^{2},
f(x) = 2x^{2} and f(x) = 3x^{2}

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However, in June 2020, several customers have voiced out their dissatisfaction about their recent electricity bill spikes on social media. In this assignment, you are required to conduct your own research by identifying what are the causes/issues of the dissatisfaction.

In: Electrical Engineering

Explain mathemetically and with diagrams, what is single sideband
amplitude modulation?

kindly Answer ASAP. Ill give u upvote

In: Electrical Engineering

Determine the magnitude of polarization (in C/m2) in a material if it is stressed 4.72 GPa perpendicular to the poling axis. (Answer format X.XXX)

d3,1 = 187 x 10-12 m/V

d3,3 = 219 x 10-12 m/V

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Design a 4 bit Counter that displays even numbers when a switch on,
and odd when the switch off and write a report about it.

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(2) Let Vabc = [ - 5 , 5 + 5 j , - 5 j ] T and calculate Vb012.
Draw a phasor diagram illustrating the relationship Vb = Vb0 + Vb1
+ Vb2 .

In: Electrical Engineering