Kevin Patterson (Kevin H. Patterson)

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@jolid9373 6 күн бұрын

At long last, a video that explains how transistors work in a circuit, thank you.

@mcmx88 Ай бұрын

Absolutely fantastic. Best explanation I've seen. I finally understand. Thank you!

@loneXin 2 ай бұрын

Should be able to cross-compile a kernel for x86 and boot a PC

@SergeyRyabenko 2 ай бұрын

Thank you Kevin! This is the most concise yet probably the best explanation I've seen about the topic.

@timmark4190 2 ай бұрын

In an actual circuit for PNP we found that it worked when the battery was across the base and collector and the voltage going to the emitter was -ve

@erichfeit7779 2 ай бұрын

Yes, I agree . Your battery symbols are reversed. But the rest of your teaching is excellent. 75 year old electrical teacher here.

@garrettmandujano2996 2 ай бұрын

Core load distribution is so even

@amirrezafiroozi4080 3 ай бұрын

Hands on one of the best explanations available on transistors! Keep up the good work!

@marko5472 3 ай бұрын

This really helped me understand transistors better than any other videos I have seen. When the teacher is good, also difficult things are easier to grasp.

@hakuzu88 3 ай бұрын

The must important thing you didn't explain IS the pnp IS suppossing to use for the not Gate and the npn for the yes Gate , if u dont supply the base from your pnp , the logical IS true and your del Can be activated, if u you supply it your del turn off , and for the npn is the contrary😅

@pauliexcluded1 4 ай бұрын

PNPs are also more expensive, perhaps due to lower production numbers however I really don’t know. PNPs are slower switching due to hole mobility being significantly lower than electron mobility.

@AndyZE123 5 ай бұрын

What strength are those magnets? If the magnets were stronger can I assume the float height would be higher? Interesting video. Thanks

@CandyHam 6 ай бұрын

Quite good, a lot of people will applaud some of the other videos so here on KZbin but most of them are too fast, can't find the right words, and sloppy and unsure of themselves.

@21thTek 6 ай бұрын

battery symbols on you schematic are inverted , the short dash is the negative pole ( minus ) .

@wtfucrazy 6 ай бұрын

Simple, to the point and not losing yourself in details. Good job.

@dekev7503 7 ай бұрын

Can this work with newer Vivado releases? Can you make a video on that?

@breedj1 7 ай бұрын

This is gold

@movax20h 8 ай бұрын

Thanks for making this video. Much appreciated. Not too bad. 110W at full load is pretty good. Of course one needs to know that this 64 cores are not that great, especially with limited memory bandwidth. A modern Ryzen with 8 cores will perform close to performance of this guy, and use similar amount of power. But it is definitively great development system if one is really into RISC-V. For me it is a pass for now. But if they improve it a bit, make memory speed faster, use newer cores with some extensions, and make ACPI work of of the box, I will definitively grab one. Great platform for writing parallel algorithms, running bulids/tests, hosting stuff, etc.

@luispedraja8489 8 ай бұрын

i thought the pnp and npn to close the switch would need some form of magnetism? am i missing something? TIA

@kevpatt 8 ай бұрын

No magetism is involved. There are no moving parts; the transistor is not a mechanical switch like a relay. It is a solid-state silicon device that uses a small current to control a larger current.

@narwahlssb 8 ай бұрын

Dang. I was thinking of doing something similar with the same tractor but I was just going to do a on off switch lol😂

@reapertrading 9 ай бұрын

please make an update because 40:40 netatalk download didn't work and you need to download it somehow

@ulascandemirbag6650 8 ай бұрын

Did you solve the problem? I have the same problem. I would be happy if you could help me.

@ndonuefidelis3390 9 ай бұрын

Well understand

@dissonantiacognitiva7438 9 ай бұрын

How usable is it? Did you get the lame graphics card or something beefier?

@kevpatt 9 ай бұрын

It's quite usable. I got the bare board and put my own GPU, Radeon RX 580. But the OS and drivers need a lot of optimization work. When that is in place I think the performance will be great. Right now for example Firefox is a dog, because I believe there is no acceleration of rendering. But CPU-only / command line stuff is fast.

@dissonantiacognitiva7438 9 ай бұрын

@@kevpatt great, I was thinking of stuffing one of these in my old iMac untill I saw the cooler size How hot does it get?

@kevpatt 9 ай бұрын

@@dissonantiacognitiva7438 The stock cooler that I got with the bare board is significantly smaller than the one pictured on the launch pages; it's more flat with a horizontal fan vs. tall with a vertical fan. With the fan attached, the board definitely doesn't run hot. I think the highest temp I've seen is about 60 C. To measure power draw, I ran the board off a small, single-board DC-DC ATX power supply, which uses a single 12V supply from a benchtop DC power supply. This allows me to measure total system power through a single 12V supply. The DC-DC converter is about 95% efficient. Results (motherboard w/ single 2TB NVMe drive and CPU fan): ~55W at idle and ~110W under full CPU load. All of that is ultimately converted to heat, of course, so you can figure between 60 and 120W of heat dissipation.

@dissonantiacognitiva7438 9 ай бұрын

@@kevpatt that is in spec with the power consumption advertised I think The GPU not working is peculiar, I would thought a standard GPU would work, I did some ports for my Chromebook which was arm panfrost drivers and even that ran nicely Old ATIs should run fine, I thought the drivers were open Nvidia is forget about it, Intel arc gpus look interesting

@alexk4894 10 ай бұрын

It can be even faster in ramdisk :)

@berzoidberg3272 10 ай бұрын

This video is already doing the build in ramdisk

@igorzherebiatev5751 10 ай бұрын

I think you shouldn't mark the battery polarity the wrong way, just use the pnp transistor for the first scheme.

@ianmacgregor1377 11 ай бұрын

Hey Kevin, Really appreciate the extension and the tutorial walkthrough! I was able to follow through to the end and get up and running with an XK-AUDIO-316-MC eval board. I wanted to try out one of the XMOS USB HID samples (AN00129_hid_class) - it looks like their sample code is setup to use XC or C so I created a new folder in my workspace and copied over the source files for the C version. I am getting stuck on how to configure your makefile to work with this example. The example makefile has the line "USED_MODULES = lib_xud" - how would this get added to your makefile template? I'm going to try and reply to this comment with github link, a previous top-level comment I wrote included the link and it looks like the entire comment disappeared.

@ianmacgregor1377 10 ай бұрын

My above question is a bit confusing, maybe I should rephrase - using this extension and build system, what is the proper way to use XMOS libraries like lib_xud? I assume this involves downloading the library somewhere locally and pointing to it with one of the makefiles. I've tried doing this and haven't had any luck. Any help would be appreciated!

@makyray5014 11 ай бұрын

Thank you! I'm really confused when I ran the XTC installer but only found a cmd program on my desktop.

@kevpatt 11 ай бұрын

Were you able to get my XC-IDE setup working in VS Code?

@lewjankilevich6575 Жыл бұрын

Thank you so much for your great work, sir

@mrboyban Жыл бұрын

Unfortunately that will force you to pay extra allowance from iCloud. Without that the conversion from vmdk to qcow2 will be impossible.

@sacmalyorum882 Жыл бұрын

I followed all of your steps from my m2 macbook air however i can not setup netatalk the link in the code says it is expried and i can not ad exception

@jimedgar6789 Жыл бұрын

Excellent video ! Thank you.

@morgaolveraalexander7250 Жыл бұрын

Thank u so very much for this tutorial!, ISE is working perfectly on my laptop; i'm gonna be working with a Mojo v3 spartan 6, i haven't got it yet, so lets hope that the VM detects it whenever i manage to get it haha.

@Aupheromones Жыл бұрын

How does this only have 141 likes? This is fantastic work. Thank you for breaking this all down, I really enjoy your teaching style.

@Vergil_Wong Жыл бұрын

Thank you for the work you've done! It's indeed a pity that there's no corresponding IDE for XTC15. I hope XMOS could provide similar plugin assistance, such as syntax highlighting for XC. Parsing XC into C is somewhat effective at present, but the unique syntax of XC is always an issue.

@kevpatt 11 ай бұрын

Thank you. Yes indeed. The XC syntax highlighting in my extension was written by someone else who graciously allowed me to include it. But it would be nice to have full-blown XC language support from XMOS...

@tlsalem Жыл бұрын

Thank you for a common sense description!

@AbbasSalehi-t5e Жыл бұрын

Thanks

@thenet0120002 Жыл бұрын

Great video on the basics of transistors clearly goes over the current flow and the function of transistors theory.

@Roq-stone Жыл бұрын

The polarity on the battery terminal is labelled wrong. The small stroke is the negative terminal.

@robertmckelvey3091 Жыл бұрын

On the PMP schematic should the resistor in LED be switched to limit current to the LED

@mr.technician2638 Жыл бұрын

This is the video I wanted to see on youtube, very clear and simple....for me that seeking of understanding working principles of electronics especially with this transistor, for begginer like me....thank you sir to share with us your understanding of this...would you do also on capacitors? Ac motors or dc or on other semiconductor?

@CoolName312 Жыл бұрын

Can I know what software you're using ?

@speedsystem4582 Жыл бұрын

is it possible to run Xilinx on Ubuntu, and if so could I use Asashi ubuntu for the same?

@xplore000 Жыл бұрын

Thanks a lot brother .. working in my mac m2

@tricky778 Жыл бұрын

Are there critical temperatures, magnetic field strengths, currents, and voltages that will prevent this diamagnetism?

@tricky778 Жыл бұрын

Does pyrolytic graphite expel magnetic fields at its surface, as if it superconducts in a thin layer? Is it actually superconducting at the surface, or in a layer just below the surface? I mean, it must have perfect eddy currents somewhere to do that, but since you need a very thin piece, it can't be throughout the bulk, and I suppose, since people don't say it's a superconductor, that it doesn't carry a current at or through its surface. Does pyrolytic graphite transmit an electrical signal well and what impedance can be deduced?

@gapguy9564 Жыл бұрын

awesome work. please post videos on these two toppics 1. Installation of vivado on M1 macs 2. How maintain softwares/packages that are been downloaded as source code and then installed.(i usually end up deleting them accidentally)

@betela-fs4iw Жыл бұрын

How to add Din into the circuit?

@shawncalderon4950 Жыл бұрын

An insomniac’s dream video.

@terrentech Жыл бұрын

Your battery symbol is backwards, and your LED symbol is not correct either. Arrows should lean in direction of current flow. Google search for how to correctly draw these symbols. Otherwise, good job.

@oleksandrapopovych1413 Жыл бұрын

Can you make it for Macbook on M2, please? 🥺

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