Questions tagged [frequency-response]

Question 1

I have a LTC3833 based buck converter that I need to test. Simulations of the open loop transfer show a very low phase margin of 29 deg. I corrected this by adding a capacitor C1 of 47 pF to ITH as ...

Question 2

I'm trying to build a optocoupler circuit to generate a bode plot on Multisim, using OPS665tx and OPS698rx optical devices with their parasitic capacitance (120nF parasitic capacitance on OPS665tx on ...

Question 3

I am trying to recreate the Bode plot and phase margin calculations of ST Application Note 2823 "Current source for LED driving based on the L5973AD". The analysis there (p17) gives: FC as ...

Question 4

The oscilloscope waveform was generated via excel, where the actual oscilloscope readings were captured in a tabular form and then converted into an Excel graph. The readings were taken from an Eaton ...

Question 5

I was looking at a AM modulator circuit with a diode and I was dissatisfied with how during the amplitude modulation you produce unwanted frequencies(more specifically the carrier frequency) and as a ...

Question 6

From Alexander Sadiku's Fundamentals of Electric Circuits, Problem 14.66: I am asked to derive the transfer function for the general first-order filter below: I redrew a simplified schematic: I used ...

Question 7

Through my study of circuits and signal processing, it is my understanding that the complete response of an LTI system is the sum of a transient response and a steady-state response. When analyzing ...

Question 8

I’ve measured the frequency response of the type I compensator (v(ctrl)/v(in)) in this simple current stabilizer circuit and found some unusual results. Measurement setup: isolation transformer 1:1, ...

Question 9

I am solving a problem related to putting a periodic, non-sinusoidal C-T signal x(t) through an RC low pass filter. I am given the signal graphically, and am provided its period and amplitude. I am ...

Question 10

I need to calculate the open loop zeros and poles for this system. What I tried is at some node between Gm2 and Gm1 block there will be one pole and value of effective capacitor is the capacitor which ...

Question 11

With a non-inverting op-amp amplifier, just have Rin and Rf, when finding the stability of the amplifier with bode plot, do I need to consider Rin and Rf if I am given the open loop gain AOL(jw) (...

Question 12

I have been reading the following article by Analog, which discusses methods used to stabilize op amps when driving capacitive loads. Analog: Practical Techniques to Avoid Instability Due to ...

Question 13

I am trying to simulate the frequency response of a flyback converter circuit as shown below to verify the location of the poles and zeros. Attached below is the frequency response obtained after ...

Question 14

Do these results make any sense? Or is there perhaps a bug in the Altium Designer Keysight SI plug-in? I'm testing the new Altium SI plug-in by Keysight. In particular, I'm curious about using it to ...

Question 15

I can't understand or simplify the Zx in the picture is equal to that of

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Questions tagged [frequency-response]

Buck converter bode plot (Frequency Response) doesnt match measurements

Why does the Bode Plot in Multisim for my Optocoupler Circuit have a Magnitude near Zero?

Check my calculations and Bode plot

Unidentified 100x Scaling Factor in Oscilloscope Frequency Reading

Purer AM modulator

Deriving Transfer Function of General First-Order Filter

Interpretation of Laplace Variable

Why might the gain of a Type I compensator be low at low frequencies?

Periodic Signal RC Low Pass Filter Questions

Frequency response of 5 transistor OTA

Stability of non-inverting op-amp amplifier using bode plot

Identifying pole/zero frequencies in an op amp stabilization In-the-loop compensation circuit - Analog Devices article

Issue with understanding the frequency response of an open-loop flyback converter

DDR3 Termination Resistors Messing Up SI?

Equivalent impedance seen into drain

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