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Questions tagged [step-response]

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For questions about the step response of an electrical system, which is the response of the system in the time domain to a unit step function input. Important characteristics of the step response include rise/fall time, overshoot, ringing, and settling time. Consider using in conjunction with related tags such as "rise-time", "control-theory", etc., if applicable.

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Score of 0
4 answers
230 views

$$V_{in} = L*\frac{di_L}{dt} + i_LR $$ $$V_{in} - i_LR = L*\frac{di_L}{dt} $$ $$\int dt/L = \int \frac {di_L}{V_{in}-i_LR}$$ $$\frac {1}{L}t = \frac {-1}{R}ln(V_{in}-i_LR)$$ $$e^\frac{-Rt}{L} = V_{in}...
Score of 1
2 answers
211 views

I am designing a simple dynamic electronic load (FET slammer) for testing the step load response of voltage regulators. My target voltage range is 0.6-12V and 1-5A load current. I will connect CH1 of ...
Score of 1
1 answer
371 views

What I know about circuits having Inductor or Capacitor: Up until now I have learned how to analyze simple LCR circuits with PWM voltage as source and calculate the value time constant Tau like RL ...
Score of 2
2 answers
372 views

My thinking is that at t = 0 s, at the sudden change in Vs, the capacitor will act as voltage source of 2 V and thus applying KCL at node X, we can get a Vx = 4 V. My confusion is what will happen at ...
Score of 0
2 answers
204 views

The textbook solution for \$b)\ (\ i_{o}(t),t\geq 0\ ) \$ is $$\ 1.25e^{-1500t}-1.25A,$$ but as \$t\$ approaches infinity, the current will be \$-1.25A \$ for \$i_{o} \$. How can this be possible, ...
Score of 0
1 answer
353 views

So I have designed a second order resonant bandpass filter with a center frequency of 320 Hz and a peak gain of 10. It works perfectly fine, however, I am just wondering why when the input is a square ...
Score of 2
3 answers
433 views

My step response for LM741 at LTSpice was this: And for TL081: So as you can see the response of LM741 is linear and of TL081 is exponential, but why? My schematic is an inverting amplifier with v=...
Score of 0
0 answers
112 views

I've designed a circuit using a PIN photodiode for a radiation detector aimed at identifying radium in an old watch. However, I'm uncertain about its effectiveness, particularly regarding the speed of ...
Score of 2
0 answers
141 views

I have three transfer functions as below The pole-zero plot and the step response of the transfer functions are given as It makes sense to me that G3 has a better damping than G2 and G2 has a better ...
Score of 0
3 answers
272 views

There is a circuit with a switch which was in position 1 for a long time and is now in position 2. I attached a picture of the given circuit below. Once in position 2 I need to find the final voltage ...
Score of 0
1 answer
131 views

I'm doing a RL step response analysis problem and I am confused on why we are able to only consider the left side of the circuit when the switch moves from position a to position b. "The switch ...
Score of 1
1 answer
120 views

Here is the question I am trying to solve: I didn't find Vo(t). What way should I go to find this value? ( Vo(t) is a voltage on 40k resistance after switch moves b.) Here is my attempt: ( It looks ...
Score of 0
1 answer
717 views

Here is the question I am trying to solve: I drew my solution with calculations on paper. Before the key is closed, I calculated İ0 and then after the key is closed, I calculated the last current (I∞)...
Score of 2
1 answer
157 views

I am self studying linear circuits and I came to a very basic problem. The problem: $$y(t) = e^{-t} u(t)$$ where \$u(t)\$ is the step function. Calculate the derivative of \$y(t)^{\prime}\$. My take ...
Score of 3
2 answers
363 views

I am trying to get back into some electrical engineering basics, and had a quick question regarding an unexpected output I am seeing. I am trying to learn about RLC circuits again, and wanted to build ...

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