Question

II. Matlab Problems 1. A student in the laboratory analyzes an amplifier circuit and determines that, theoretically, the observed output current low should be proportional to a linear combination of two input voltages, Vy and vy. He then applies two variable voltage sources as vx and vy and records the current four for each set of inputs. The data she records is shown in the table below: -5 -5 -5 -5 -2 -2 -2 0 0 2 2 2 0252 5 -5 0 5 -3.5 -17.5 -32 -50 -21-7 -42 -14 -35 42 7 -28 0 5 -5 jour 17.5 2 Find the unknown gain constants g; and g in the following model for the relationship between the variables. lout = g. 1x +32Vy Plot the estimated plane (fitted plane) and the measured data points given in the problem statement to show that the parameters gobtained by you give a reasonable fit to the data.

Answer 1

1 Soltation: Given data briven , VX + vy, are two Yout the ocot put Corrent linear voltage Yout givt qe ry 10 the table from Presst two redings 17.5 -5g, to (-5) - 35 - Egi f (-2) g gi > 3.5 / 92=-7 १d & 4th readings. -17.5 =- = -59, gi z 8.5 --32 = -59, +2 +292 - 32 7-5 X 3.5 +2 +2g 192 -7.25 gi=815 3-4 ]

57h fath readings - 5g, tsg, = -50 - zgi + --7 gi 3.5 g -605 6th Cand 8th readings -241 +292 3-21 ag, tsg, -42 T f -392 =21

3 ਹੈ? ਜੇ * 3 4 f0 au The readings, we Coon observe that ।> 3 • • ¢ } 32 -6s to ਹੈ। 2 3.5 ਨੂੰ 2 - 8 -Q - 2 3 12 ਹੈ। > 3 • g ਰੋਮ : - - 3 1 2 3 %ਮ 7 - Please give me theme up