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Пікірлер
@neontime 19 сағат бұрын
That's a universal socket on the output. It should also take a US NEMA plug...
@jameskim62 3 күн бұрын
Nice Review !!!!
@thomasmaughan4798 5 күн бұрын
It would be useful to show the applied voltage waveform along with the current waveform to illustrate where on the voltage waveform the current is peaking.
@EETechStuff 5 күн бұрын
@@thomasmaughan4798 You can't do that yourself?
@thomasmaughan4798 5 күн бұрын
@@EETechStuff "You can't do that yourself?" Yes, I cannot. Once the shunt resistors arrive I will be able to do this myself. So many youtube videos are ALMOST useful.
@thomasmaughan4798 Күн бұрын
Experiments complete! Thank you (and youtube) for revealing this phenomenon. By displaying the voltage and current, I obtain understanding of that first half cycle. *The strongest inrush* happens if you energize the transformer at the voltage crossover or zero. The polarity of the inrush depends on the slope of the voltage at that moment; rising or falling. *The least inrush* happens if you energize it at peak voltage. *Inrush current starts* when the voltage waveform crosses a peak. In other words, if I energize on the positive half, quarter of the way into the voltage waveform, the current just sits there until the voltage goes over the top and starts back down. That is when you get the inrush and it *catches up* to its out of phase current. *Core magnetization* of the inrush is remembered for some cycles, about a dozen. The subsequent voltage polarity changes are not enough to immediately demagnetize the core. Eventually the current in the core becomes symmetrical but still isn't a sine wave. *Test Conditions* : To eliminate the problem of residual magnetism from turning it OFF mid-cycle, I use a variable autotransformer to reduce the voltage to zero and thus leave the transformer in a known, non-magnetized state for the next power-on test. The oscilloscope is powered from a Goal Zero batter/inverter so as to avoid problems that can happen clipping the ground lead to the mains power.
@MukeshKumar-py9sv 5 күн бұрын
ERROR: can not include myfilter.sub file, when running the simulation. Where can i be wrong ?
@hanskwameosei9214 7 күн бұрын
how did u make it display the mouse up ,and down pls
@user-ep3mu8jw2c 10 күн бұрын
thank you
@nezu_cc 10 күн бұрын
feels obvious if you've been reverse engineering for a while but a nice tutorial for people to get started.
@eusebiosksipolitos2524 11 күн бұрын
Very cool video...
@frad-x8q 11 күн бұрын
do you have a github account ?
@frad-x8q 11 күн бұрын
the videos on your channel are amazing you definitely keep it up. I learned a lot thanks to you thank you
@AcordaPraJogar 14 күн бұрын
Really helpful video. Thanks!
@gtavgameplaytv2200 15 күн бұрын
super, thank you sir!
@tommymccomic7715 17 күн бұрын
June 2024, I just purchased this light and it is made different now. Looks the same, but the battery inside is different, I'm guessing because technology is always improving and changing. Anyway, if your considering buying this light, here is my experience with it. You still have to charge it 24 hours for the first time you take it out the box. No big deal, I plugged it in and forgot about it until the next day. Then any charge after that, takes about 8-10 hours. I use the light bar in a dark closet so it's not like I'm turning this thing on every day and leaving it running for hours. I might go in the closet 3 times a day for a few minutes at a time if that. So when it's fully charged it stays very bright for over a month without having to recharge it. Also, I did not use the screws that came with it. I went to Walmart and bought some of that 3M double sided sticky tape, I think it was $3.97 for a roll of it and I got the one rated for 15lbs of holding strength. I just cut a strip of that tape off and stuck it to the back of the light and then stuck that to the wall. Holds easy, no problem and I can always remove it if I want to. Lastly, in my instructions, it says you can just leave the light plugged in all the time and it will run the LED's continuously. So if your hanging the light near a plug, you could just leave it plugged in all the time. It does say to not run the light while charging, but that is because if it's plugged in and you turn the lights on, the power goes directly to the lights and not to recharge the battery. If your not using it wirelessly, you can just leave it On and plugged in and you will have light all the time. Just know if you turn it off, it will take 8-10 hours to charge that battery again. I like mine as it gives off plenty of light for a dark room. There are more powerful wireless LED's on the market, but I liked the fact that this one is a long bar, so it spreads the light out and projects it to a wider area in the closet. For reference, mine was $19.99 at a Ace hardware store.
@hmmmidkkk 17 күн бұрын
Thanks!
@vjyothsnapriya 18 күн бұрын
i will tried to waveform generator connect pc in LAN cable i can't connect help me sir
@Anointingify 19 күн бұрын
Your has thrown more insight into the zmpt101 library and your code gives a better way to go. But, what if am using the sensor for 220V? What will change in DC offset and sensitivity? Thanks in anticipation.
@JovenAlbarida 22 күн бұрын
thank you very much this what im looking for couple of days now
@RonaldMommsen 25 күн бұрын
does anyone have the source code for this ?
@EETechStuff 25 күн бұрын
This channel is for people who want to learn, not just copy & paste. Which is why I get no views.
@qarnma0h1 26 күн бұрын
Thank you so much for this great video. One time I was looking for save as option in visual studio to save a project for later use. I was not able to figure it out. This template method is a great way to reuse a project or even a class in any future work. That is awesome.
@robertodilorenzo1902 28 күн бұрын
the parameter "VersPerFace" is not defined, where did you defined?
@robertodilorenzo1902 29 күн бұрын
can you share this code? i can correct and have a look on the part of missing code.
@SomeOne-ke4fz 29 күн бұрын
sad it cost $399
@robertodilorenzo1902 Ай бұрын
can you share the csv file? I get an error during the running code. the problem is here. xVals.push_back(std::stod(values[j])); yVals.push_back(std::stod(values[j + 1])); error during the convertions from string to double
@robertodilorenzo1902 Ай бұрын
I don't find the video where you show how to import csv file... Can you share the link here?
@MarkOverstreet-1 Ай бұрын
This was informative but it lacked some information that would have been good. For example, why didn't you use .NET8? Heck, you didn't even use the latest .net framework version! Also, I need to connect to a wifi camera not my smartphone and the camera DOES NOT have a driver in Windows so how can I access that? Any thoughts?
@EETechStuff Ай бұрын
I did a video on whether to upgrade from .NET Framework to .NET back in November.
@best-ki6mk Ай бұрын
helpful
@jacksheppard4907 Ай бұрын
Complex has properties for Magnitude and Phase.
@higiniofuentes2551 Ай бұрын
Thank you for this very useful video!
@Elephantine999 Ай бұрын
This really helped demystify Microsoft's very unintuitive chart design.
@divyatripathi155 Ай бұрын
Hi I m trying to simulate fuse behavior want to add fusing current vs time characterstic can u help me with the same?
@EETechStuff Ай бұрын
First you need to plot the current thru the fuse, and then calculate RMS. Then square the RMS and multiply times the simulation time to get I2t, which describes total energy thru the fuse (see my video on Understanding Fuses). Each fuse time-current characteristic is defined by the I2t, so get the I2t from the manufacturer and in your simulation compare the actual I2t value vs. the fuse I2t rated value, and if the actual exceeds the fuse rated value at any time in the simulation the fuse should blow. Maybe make the I2t calculation as a voltage source and feed it to a voltage controlled switch (see my video on LTSpice switches), and make the switch operate if the realtime I2t volts exceeds the mfr. I2t. Haven't tried it, but something like that should work.
@abossomss496 Ай бұрын
Amazing!!!!!!!!!!!!!!!!!
@N2Stooges Ай бұрын
This ZMPT101B module seems poorly designed for use with 120VAC circuits and a 5VDC Vcc rail. The LM358 op amp used doesn't have enough output voltage swing. An LM358 output only swings from (Vcc - 1.4V) to (Gnd + 0.1V). For a 5VDC Vcc, the output can only swing from 0.1V to 3.6V. With the nominal output voltage biased to 1/2 of Vcc, the output will only swing from +2.5V to +3.6V for the positive cycle of the AC waveform. I wonder how well this ZMPT101B module would operate if you replace the LM358 with a pin-compatible rail-to-rail op amp like the TLV2462 from Texas Instruments. The TLV2462 output can swing from 0.1V to 4.9V when operating with a +5VDC Vcc. Some other tweaks to the gain setting resistors on the module might be necessary to get it to operate without clipping the output. It might be better to just harvest the ZMPT101B transformer from one these modules and build your own circuit using a TLV2462 op amp so that you can properly select all the components. The TLV2462 comes in many package types including DIP and SOIC. Cheers.
@EETechStuff Ай бұрын
Did you actually try it, or is this just hobbyist speculation? In part 1 of this series I show how, after properly calibrating the ZMPT101B and Arduino Vref, the results match my voltmeter within less than 0.5 volts from a 120VAC wall outlet. Are you measuring something that requires more accuracy than that? Seems pretty good to me for a $2 USD device.
@N2Stooges Ай бұрын
@@EETechStuff I haven't tried it yet but plan to do so... parts are on order. I want to run the modified module with a 3.3V Vcc and interface it to an ESP32 uC without using any additional power supplies. If the modification doesn't pan out, then I'll design my own circuit using the current transformer from the module. I'd like to be able to measure AC voltage up to 140VAC RMS with a resolution of 0.1V or better. That should be doable with the ESP32 12-bit ADC if I can get 3V of dynamic range out of the module. The TLV2462 is characterized at 3V Vcc to swing from 0.1V to 2.9V so it should be able to swing 3.1V at 3.3V Vcc. The TLV2462 Vcc range is 2.7V to 6V unlike the 3V to 36V range for the LM358 so that is a limitation I'm willing to live with and is fine for ESP32 and Arduino (ATmega328) microcontrollers. Thanks for your videos showcasing this module and your code. They were very helpful and provided great insight into the limitations of the ZMPT101B module and creative ways to use it. Awesome!
@EETechStuff Ай бұрын
What makes you think the current transformer is accurate and linear enough to support 0.1 volts accuracy? And are you aware that typical voltmeters might have an accuracy of around +/- 1%, which in this case might be over 1 volt? My results show an accuracy for this module of better than 0.5 volts. So I'm not sure why you think it's "poorly designed", and why you think 0.1 volt accuracy is needed or attainable. But hey, have fun with your project.
@djrandomwalker7656 Ай бұрын
thank you sir.
@ashwininanjunda2144 Ай бұрын
Hello Sir, Can you help me with basic thermal Modelling using LT spice??
@aryafarzin6534 Ай бұрын
Hey just wanted to say your content is amazing! I just discovered your channel and now I have to watch all of your series, they're all in my interest areas. It would also be interesting to see a video about you and what your background is as you cover quite a wide array of technical topics.
@sevaszek Ай бұрын
I came looking for copper and I found gold.
@user-bv3tn3yj1j Ай бұрын
Thank you good explanation
@AjayKumar-ul2dg Ай бұрын
Brilliant lecture
@mahdinafa7579 Ай бұрын
Thank you
@nguyennhatquang4894 Ай бұрын
hello, im also doing some project with GPU image process using emgucv, when i do gpuFrame.upload(frame) it alway throw Emgu.CV.Util.CvException: 'OpenCV: The library is compiled without CUDA support' although i already install all needed packet, can anyone help me with this
@knucklehead83 Ай бұрын
As for the stand, you can simply push the top of the stand in and it will pop it out. It took me a minute to figure that out cause my fingers are far too large to get under the edge of it.
@tradegrabber4854 Ай бұрын
Thank you for this tutorial!
@tradegrabber4854 Ай бұрын
Great tutorial!
@paulchang8766 Ай бұрын
clarify how to use LTspice very well! thank you so much
@tradegrabber4854 2 ай бұрын
Great tutorial. Thank you!
@mohamedeltayeb4542 2 ай бұрын
Thanks so much, this was extremely helpful
@tradegrabber4854 2 ай бұрын
Thanks for great tutorial!
@LearnAgon 2 ай бұрын
Very nice work 🎉using this as a reference for my Agon Light Oscilloscope project!!!
@ElCidPhysics90 2 ай бұрын
Been using Syncfusion’s Chart Control for WinForms. It’s nice but have had trouble with some configuration. This is the first I’ve seen anything about Scott Plot. Looks really nice and straight forward. Great video. Thanks for sharing
@jumbo999614 2 ай бұрын
Hi, I'm just beginner. I bought XR2206 signal generator. So all I have to is connect other end of that blue wire to ground and red wire to signal square/sin wave of the XR2206?