Electrical and Computer Engineering Electrical and Electronic Circuits Homework Help

Electrical and Computer Engineering Homework Solutions

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What are the techniques used to make feedback system stable? Explain and draw the frequency response of a 1-pole feedback amplifier. In a 3-pole feedback amplifier the loop gain is given by: t(f)=(Beta*100)/ ( (1+j*(f/10^4)) * (1+j*(f/10^5))^2 ); Determine the stability for Beta=.5 and .05. Sketch the Nyquist p ...continues

BJT input diff-amp stage/off-set voltage

Define the offset voltage in the op-amp circuits. Show that the expression for the offset-voltage compensation of BJT input diff-amp stage shown in figure 4 is given by: Vt*ln(ic1/Is3)+ic1R'1=Vt*ln(ic2/Is4)+ic2Rs' Determine the value of x in the potentiometer to compensate for a mismatch between active load transistors Q3 ...continues

non-inverting BiCMOS (CA3140) op-amp circuit

Consider a non-inverting BiCMOS (CA3140) op-amp shown in image 3b. If the input signal is: vi(t)=3*sinwt V Calculate the full-power bandwidth (FPBW) and small-signal bandwidth (f3db) (note :ft=6 Mhz, A0=75k) Sketch the output wave forms for the two inputs shown in image 3b2.

Determine Magnitude of Impedance

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