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SimplyCircuits
United States
Приєднався 25 чер 2023
Negative Resistance Op Amp
In this electrical engineering tutorial, I analyze the negative resistance operational amplifier circuit. I then talk about its application as an oscillator circuit.
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Відео
RL Circuit Analysis -Transient Response
Переглядів 609Рік тому
In this electrical engineering tutorial, I go over how to analyze first-order RL circuits and then apply the approach to an example problem.
RC Circuit Analysis
Переглядів 1,6 тис.Рік тому
In this electrical engineering tutorial, I go over how to analyze RC circuits in time domain. I then apply the approach to an example problem with a dependant source.
RLC Laplace Domain Analysis - Transient Response
Переглядів 458Рік тому
In this electrical engineering tutorial, I go over how to analyze circuits in Laplace domain. I then use the Laplace analysis technique to find the transient response of an RLC circuit in both s domain and time domain.
Thevenin to Norton (Source Transformation)
Переглядів 1,1 тис.Рік тому
In this electrical engineering tutorial, I show how to go from a Thevenin to a Norton model and vice versa. I then apply the technique of source transformation to an example circuit.
The Current Divider - Analyzed
Переглядів 341Рік тому
In this electrical engineering tutorial, I derive the current divider equation and apply it to an example problem.
Voltage Divider - Analyzed
Переглядів 258Рік тому
In this electrical engineering tutorial, I derive the voltage divider equation and apply it to an example problem.
Maximum Power Transfer Theorem
Переглядів 172Рік тому
In this electrical engineering tutorial, I derive the maximum power transfer equation for a circuit. Using the Thevenin circuit model, the equation for the maximum power can be found by optimizing the power equation for the load resistor. For more on how to find the Thevenin equivalent circuit: ua-cam.com/video/Zy6n3ZOfwsw/v-deo.html
Thevenin Equivalent Circuit Example Problem
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In this electrical engineering tutorial, I explain the process to find the Thevenin equivalent for a given circuit. I then apply the method to an example problem with dependent sources. For more on how to analyze circuits: ua-cam.com/video/yelB0TQHtwA/v-deo.html For finding equivalent resistance with dependent sources: ua-cam.com/video/fiHHQdcvWt8/v-deo.html
4-20mA Transmitter Explained using an Op Amp
Переглядів 7 тис.Рік тому
In this electrical engineering tutorial, I analyze the 4-20mA op-amp circuit. This uses an operational amplifier to create a voltage-controlled current source. I then go over the advantages of current transmitters over voltage transmitters for long-distance signal transmission.
Integrator Op Amp - Analyzed
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In this electrical engineering tutorial, I analyze the operational amplifier integrator circuit. The integrator circuit outputs a voltage which is the integral of the input voltage.
Differentiator Op Amp - Analyzed
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In this electrical engineering tutorial, I analyze the differentiator operational amplifier circuit and derive the output voltage in terms of the input voltage. Next, I go over an example of how to graph an output waveform from the op-amp differentiator circuit given an input voltage graph.
Differential Amplifier - Analyzed
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In this electrical engineering tutorial, analyze the differential amplifier op amp circuit. I also discuss the advantage of differential amplifiers as they relate to common mode noise.
Conservation of Power in a DC Circuit
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In this electrical engineering tutorial, I go over how to calculate DC power for resistors, voltage sources, and current sources. Once the power for each element has been calculated, I verify that the sum of the total power is equal to zero, thereby obeying the conservation of power.
Non-Inverting Summing Amplifier - Analyzed
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In this electrical engineering tutorial, I go over the non-inverting summing amplifier and derive the output voltage in terms of the input voltages. This operational amplifier circuit enables the addition of two voltages without inverting the output. This can be particularly useful if you are powering your op-amp with a single voltage source and your output is bounded between zero and your uppe...
Equivalent Resistance with a Dependent Source
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Equivalent Resistance with a Dependent Source
Simplify Resistors with Open and Short Circuits
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Simplify Resistors with Open and Short Circuits
You should calculate the steady state voltage of capacitor Vc(oo)=(Non zero value) since we have as dependent source in the path so must find the thevenin equivalent voltage acrosss capacitor to solve for steady state volatge on capacitor which you consider zero (Thats wrong) and hence further ananlysis goes wrong because this is the not the ordinary case of indenpendent voltage/current source . Correct me if my approach is wrong.
unreal video, saved my exam
At 1:25 , Why is this node referenced to the ground? Isn't there still the 10 Ohm resistor in the way?
I love your videos, thank you sir. They are helpful for fundamental circuit 1 concepts!
Excellent video. Thanks so much !
Sorry, I found this totally unhelpful. Mostly just assertions without explanations. A very poor attempt at teaching a concept.
excellent explanation thank you!
Really appreciated this video. It helped me a lot. Thank you!
Bro saved my life
Hi
I tried other videos and somehow the method wasn't working correctly. (I must have messed something up). I followed this method of naming everything with I1, I2, I3, etc and it worked out perfectly. Thanks!
Well explained. Thank you.
Hi ı want use a Pt100 at 4to20ma at 24vdc and Pt100 Will run 0 cantigrat degree to 100 cantigrat degree you can help me for circuit diagram
I love you
i tried these formulas with R=1k and cap 4.7uF and getting some huge numbers , not matching reality
You keep talking talking talking but what about just giving the 2 threshold formulas which are essential to understanding the schmitt trigger workings? No just blablablabla
at output of an opamp we cannot apply KCL
Thanks
This is one of the best explanation I've seen
Can you show that circuit doing useful work like powering a bulb or motor?
So easy when explained right... thx a lot
So hard🤔
great job!!
Thanks a lot for this video, it helped me a lot
Thanks for the informative video🙏
This is really hard to follow. I'm not college educated so that could factor.
It's well explained actually
Very good. Thank you.
Is it always given in the question if the Op Amp is ideal or Non-ideal or is there a way to tell if it is ideal?
usually assumed ideal and given if not
Awesome tutorial. I can see your channel taking off in the near future.
amazing video, keep going
Sounds like a nonsense for me. If ideal opamp has infinite input resistance, you, in fact, have voltage divider which consists of 1k resisotor and infinite input impedance resistor and due to voltage divider formula voltage drop across 1k resistor should be small, not Vin. All this opamp circuits seem to be completely magic.
I wish someone had responded to your question earlier. I just saw it. Anyway, I understand your viewpoint, so maybe I can help you understand why the author is correct. Regarding the inverting amplifier, yes, the 1K resistor IS in series with the op-amp's nearly infinite input resistor. BUT, that nearly-infinite input resistance is paralleled with the 10K resistor that is connected between the inverting input and Vo. All the current flowing through the 1K resistor continues through the 10K resistor on it's way to Vo - the only place that current CAN go. It cannot flow into the inverting input, with it's near-infinite impedance. The op-amp will drive Vo low enough to make the voltage at the inverting input the same as the voltage at the non-inverting input, 0V. So, the entire input voltage is applied across the 1K resistor: the left sideof the 1K is connected to the input, and the right side of the 1K is virtually connected to ground, 0V. So, "looking into" the input, the input signal "sees" only the 1K resistance. The input current will be as if the circuit was simply a 1K resistor connected between the input and ground. Hope that helps.
@@OsoMagna Yeah, I remember spotting this flaw right after i wrote down my comment. Anyway my understanding of opamp circuits improved tremendously since then. Thank you anyway for this long.
I like to use Millman's theorem for non inverting summing amp for those non inverting branches. It gets rough when you have more than two branches but Millman simplifies it
1:58 isn't it V2-Va in the numerator for second current? Edit: Oh, sorry my bad. i1=-i2 which changes signs for the whole numerator. Everything seems good
Much appreciated Sir😊 Easy Use it for why ??🫡
Very well explained!
Much appreciated Sir 😊 30secs for vo/vi
IMPORTANT: A novice might confuse for NON-ideal amp Ao (A_open_loop) with Af (A_feedback) = -2k/1k = -2 in the case shown above Ao =1,000 Af = 2k/1K =2 Vin = +1v , Vo = -1.944v so e(-) =0.006v; e(+) = 0v (Gnd)
Thanks
Love the video. Thank you.
Good. Thanks 👍
simply amazing
Thank you
What software you have used to draw the ciruits? I mean black background with white sketch?
There is no such thing as negative resistance.
perfectly explained.
excellent tutorial. Good luck with your channel
Can you make it create a nice sine wave with the LC tank, or does it just rail it regardless?
I don't believe you can with the circuit as shown. One way you could modify things to get a sine wave out of it would be to connect a low-pass filter to it. A square wave is composed of a summation of higher-frequency sinusoidal functions. By adding a low pass that cuts off just beyond the frequency of your square wave you can reject those higher-frequency components leaving you with a nice sinusoidal output. You would want to be sure to buffer the low pass filter or use an active low pass filter with a high input impedance so that way you don't distort the oscillator's frequency by adding your filter.
Use a light bulb to limit gain... Resistance increases when the filament warms up.
@@davebutler3905Perhaps better to use another solid state solution... like a phase shift oscillator for a nice sine wave. Or perhaps I'm just saying that because I wouldn't know how to apply your light bulb solution to the actual circuit. Would a light bulb be better than waveshaping a _triangle_ wave with diodes? (Just sayin' because triangle is so easy to make with op-amps).
Excellent video, thank you
Great videos, thank you.....a little slower would be perfect but thank you 😊
Thanks for the feedback, I'll keep that in mind!
I found it easier to follow at .85 speed.
Thank you, could you please do a video on oscillators, I just cannot get my head around them at all, I can't understand why there is not one video on UA-cam that properly explains for example, crystal oscillators in layman's terms
Thanks for the suggestion! I'm working on a couple different videos at the moment, but I should be able to have it out sometime next week.