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ElectronX Lab
Canada
Registrace 16. 06. 2010
Engineering is hard and you deserve all the support you can get. If you missed a lecture, didn't understand your prof, or just tuned out during class (it's hard to blame you for that), don't worry, I've got you covered. I have playlists that cover entire courses worth of electronic circuit theory and digital electronics, and there is a growing catalog of electrical circuit theory too. The videos are much shorter than your regular lecture, so you'll be able to catch up in no time.
I want you to succeed in your engineering courses and if you have the perseverance to work through an engineering or engineering technology program, program, this channel is here to support you.
Reach out to me in the video or community comments sections if you have any questions or requests for future videos and don't forget to subscribe.
To help support this channel and website, please consider buying me a few CPU cycles on the electronx.ca server:
ko-fi.com/electronxlab
I want you to succeed in your engineering courses and if you have the perseverance to work through an engineering or engineering technology program, program, this channel is here to support you.
Reach out to me in the video or community comments sections if you have any questions or requests for future videos and don't forget to subscribe.
To help support this channel and website, please consider buying me a few CPU cycles on the electronx.ca server:
ko-fi.com/electronxlab
Modeling Diodes (Better Audio)
This video describes 4 different ways to model a diode in a circuit
1) Fwd Biased: as a short. Rev Biased: as an open
2) Fwd Biased: as a small voltage source opposite in polarity to the voltage source of the power supply plus a small resistance. Rev Biased: as an open
3) Fwd Biased: as a small voltage source opposite in polarity to the voltage source of the power supply. Rev Biased: as an open
4) Shockley's Equation
To see more content related to electrical and electronic circuits, check out:
www.electronx.ca
1) Fwd Biased: as a short. Rev Biased: as an open
2) Fwd Biased: as a small voltage source opposite in polarity to the voltage source of the power supply plus a small resistance. Rev Biased: as an open
3) Fwd Biased: as a small voltage source opposite in polarity to the voltage source of the power supply. Rev Biased: as an open
4) Shockley's Equation
To see more content related to electrical and electronic circuits, check out:
www.electronx.ca
zhlédnutí: 714
Video
Gain Bandwidth Product (GBW) of Op Amps
zhlédnutí 8KPřed rokem
Guess what the Gain Bandwidth Product is? Not surprisingly, it is the product of the frequency and the gain at that frequency on a Bode plot of an op amp. This video goes into detail about this important op amp characteristic. To see more about operational amplifier check out: www.electronx.ca/education/op-amps/common-configs/ To see more content related to electrical and electronic circuits, c...
Intro to Stability for Op Amps
zhlédnutí 4,8KPřed rokem
Using negative feedback with op amps brings all sorts of advantages - a controlled gain, controlled impedance, improved bandwidth. But it's not all kittens and rainbows. Instability is the dark side of op amp negative feedback and this video outlines what stability is and how to check for stability in a circuit To see more about operational amplifier check out: www.electronx.ca/education/op-amp...
Op Amp Open Loop vs Closed Loop Gain Response
zhlédnutí 16KPřed rokem
The open loop gain of an op amp is very big, but the bandwidth is quite small. When you create a closed loop circuit, you give up some of that gain but get more bandwidth. This video goes into detail about why this is the case. To see more about operational amplifier check out: www.electronx.ca/education/op-amps/common-configs/ To see more content related to electrical and electronic circuits, ...
Non-Ideal Op Amps: Input Bias Current
zhlédnutí 4,1KPřed rokem
Input bias current is an unavoidable feature of op amps that arises because the input impedance of op amps is actually not infinite and there is some current that must flow into the inputs when the op amps are operating. This video describes why input bias arises, the effects that it has on the circuit, and ways to mitigate the effects of input bias currents. Input Offset Voltage Video: czcams....
Non-Ideal Op Amps: Input Offset Voltage
zhlédnutí 4,3KPřed rokem
Input offset voltage is one of the non-ideal characteristics of an op amp. It can be modeled as a small voltage source in series with one of the input terminals of the op amp. Input offset voltage is an unavoidable property because it is due to the semiconductor manufacturing process. It can be compensated for either through modifications to the external circuit or by adding compensation inside...
A Brief Explanation of Negative Feedback
zhlédnutí 785Před rokem
Negative feedback enables the output of a system to be maintained at a certain level or value. It does this by taking some measurement of the output, comparing it to what is expected and then adjusting some element of the input or system to keep the output within its acceptable range. This video describes negative feedback in a little bit more detail using block diagrams and examples to help wi...
Op Amp Integrator and Differentiators - Alternative Analysis
zhlédnutí 1,5KPřed rokem
In this video, I use an alternative approach to deriving the relationship between Vin and Vout for both an integrator op amp circuit and a differentiator op amp circuit. This alternative approach involves analysing the circuit in the frequency domain and then using an inverse laplace transform to bring the equation back into the time domain. Don't worry though, the transforms are really easy an...
Differentiator Op Amp Circuit
zhlédnutí 6KPřed 2 lety
Once again, the name of the circuit is the thing that it does. So this circuit differentiates, or takes the derivative of the input voltage to create the output voltage. Well, it doesn't actually sit there and do the calculation, but the output voltage is proportional to the derivative of the input voltage and in this video, I show you why. To see other common operational amplifier configuratio...
Integrator Op Amp Circuit
zhlédnutí 16KPřed 2 lety
The integrator circuit does exactly what you would think that it does...it takes the input voltage and integrates it to give the output voltage. Yes, circuits can do calculus. This video derives the equation for the relationship between input and output voltage of an integrator circuit, provides some examples of where you might find such a circuit, and goes through a few simulation examples. To...
Difference Amplifier Using an Op Amp
zhlédnutí 14KPřed 2 lety
A difference amplifier is one that outputs a signal proportional to the difference between two input signals. This video shows how to calculate the amplification that the signals get based on the external resistors. This video also shows some simple simulation examples using LTSpice To see other common operational amplifier configurations check out: www.electronx.ca/education/op-amps/common-con...
Summing Amplifiers
zhlédnutí 3,9KPřed 2 lety
A summing amplifier is one that takes in more than one input and sums them all together to give the resulting output. The amplifier might also add a gain to the voltage. In an audio system, this would be called a mixer because it mixes the signals (different audio sources) together to give one resulting signal. This video describes two configurations, one that is inverting (the inputs are phase...
Introduction to Inverting Op Amp Circuits
zhlédnutí 1,7KPřed 2 lety
Introduction to Inverting Op Amp Circuits
AC Analysis: Series/Parallel RLC Circuit
zhlédnutí 58KPřed 2 lety
AC Analysis: Series/Parallel RLC Circuit
Overview of Susceptance and Admittance for Electric Circuits
zhlédnutí 4,3KPřed 2 lety
Overview of Susceptance and Admittance for Electric Circuits
Quick LTSpice: AC Analysis of Parallel RLC Circuit (Includes a couple LTSpice Tricks)
zhlédnutí 1,9KPřed 2 lety
Quick LTSpice: AC Analysis of Parallel RLC Circuit (Includes a couple LTSpice Tricks)
AC Analysis: Parallel RLC Circuit. Calculate Voltage and Currents
zhlédnutí 11KPřed 2 lety
AC Analysis: Parallel RLC Circuit. Calculate Voltage and Currents
Quick LTSpice: AC Analysis of a Series RLC Circuit
zhlédnutí 3KPřed 2 lety
Quick LTSpice: AC Analysis of a Series RLC Circuit
AC Analysis: Series Resistor/Inductor/Capacitor Circuit
zhlédnutí 11KPřed 2 lety
AC Analysis: Series Resistor/Inductor/Capacitor Circuit
Quick LTSpice: Check Capacitor Charging Analysis
zhlédnutí 2,3KPřed 2 lety
Quick LTSpice: Check Capacitor Charging Analysis
RC Parallel Circuit: Calculate Voltage and Currents
zhlédnutí 8KPřed 2 lety
RC Parallel Circuit: Calculate Voltage and Currents
RC Series Circuit: Calculate Voltages and Current
zhlédnutí 15KPřed 2 lety
RC Series Circuit: Calculate Voltages and Current
LTSpice: Three Different Ways to Simulate Voltages and Currents in AC Circuit
zhlédnutí 6KPřed 2 lety
LTSpice: Three Different Ways to Simulate Voltages and Currents in AC Circuit
how to find Vc and Vbc
Thank you sir...
Thanks Sir ❤
🙏 Thanks 🙏👍
thanks so much. your website is amazing
Good lecturing
i love you
don't know if i'm wrong, but how come the next state of 1010 is 0000
Anyone from nutech electric 23
It would be helpful if you refer to the spec sheet for transistors. how do you know what I(sat) is? spec sheet for a 2n2222 doesn't show I(sat). Otherwise it is a very good tutorial. makes me remember what I for got.
Thanks so much , very well explained
thanks
I have a simple question, and it may depend on its application. But what if we supply(Vin) to the negative(-) input instead while the positive(+) terminal is tied to Vout. I believe this configuration is also Vout = Vin ? It's more common to supply the positive input... why is it ?
Can you please make a video with a example question where the capacitor voltage is higher than the source voltage
Very Nice explanation.
"Like and subscribe if you do that sort of thing" 😂, I've never heard that one
Thank you!
From now you are my teacher. Easy to understand and explain well thanks.
Sir, I did not learn a bit. I have in fact learned A LOT. Thank you so much for this explanation. My finals are in a few days, and you have accelerated my learning.
I love how you explain your answer for this problem. I hope you can create more example problems concerning different theorems (Branch current, maxwell, kcl/kvl, nodal analysis, superposition, thevenin and norton's).
Voltage divider rule?
I don't see jack
Amazing, thank you for having two alternatives for getting to the final equation, it was very helpful.
Was hard to find people who cared to explain how we arrived at this formula, thank you for doing that, sir.
Wouldn’t ZL be at -90 degrees and ZC at 90 degrees, according to the ELI and ICE acronyms saying that the current of inductors lags the voltage and that the current of capacitors peaks before the voltage (on a phasor diagram)?
easy to follow, worked
THANK YOU for demonstrating a single power supply schmitt trigger, I had to look around quite a bit to find your video. everyone with an op amp in their hand tunnel-visions thinking you MUST have a dual power supply if you're using an op amp.
Awesome video. I would note that you can get an easier and quicker answer to solving the circuit by doing KVL in each loop and solving for currents 1 and 2, Since these elements are assumed to be behave linearly. By getting currents 1 and 2, you can solve the corresponding voltages across the resistors. I solved it this way and i got the same answers. Knowing this, i am just confused as to what came first and how to connect these ideas. Does KVL incorporate superposition through the currents ? OR is it better to think about these ideas separately?
where AC source from thumbnail?
If you are saying the gain of the transistor is 100 and the emitter is fixed, the stage will have a gain of 100 and the output will be 10 x 100 mV = 1,000mV = 1v
justtttttttt Excellent, beautifully explained
Thank you sir 🙏🏾
great resource, thanks for sharing
FYI “watch your p’s and q’s “ comes from the days of typesetting. In those days you set the mirror image of text you were setting using separate little metal characters. It was easy to confuse or flip a letter upside down. So the p, q, d and b always required extra attention as they were all easily mistaken. (Crap I’m old!)
Sir you made mistake When you written C1 4.7MF but when finding capacitive reactance that time you use C2 value
What will happen if we eliminate the 3 ohm resistor?as in practice,no resistors are used in series with the load.
You know, i've been beating my head against this problem for years. I work on batteries for a living and so was always assuming the voltage stays constant throughout the entire discharge
hola Diego pero hola de hola no ola de ola de mar
Pipipipipi
This is the instructional video I've been looking for! I've watch so many vids and read so many electronic forum posts in regard to summing opamps and this is by far the most clearly explained. Thank you.
How do you find the total current in a parallel RC circuit with two capacitors and two resisters all in parallel with each other?
get a speaking course and learn the meaning of pauses
I watched many videos on this topic, this one is maybe the best, thanks!
Great vid legend
I think T-model is more simple than other, thank you
For those saying the values are wrong at the circa 6 minute mark, the end value of 43.232mA is actually correct. However the error lies with the resistance value used to divide by. On the example the combined impedance of ZL1, ZC2 in parallel with ZR1 was used (449.11 Ohmz < -17.147) when the value of resistance for just the ZL1 and ZC2 should have been used (1523.3 Ohmz < -90) which then gives approximately 43.232mA. Hope this helps.
yup i noticed that too
Thank you!
Also, PF = cos(phase angle).
🫡🫡♥️♥️👏🏻👏🏻
So i am confused about how the thevenin voltage is between terminals A and B, but when you re-insert the load resistor in between these two terminals, the thevenin voltage does not drop across the load resistor. May you explain this to me? thanks