Electrical Engineering V2 - Developers

That's likely due to the viewing angle in the photo. They'd all be at the right angle from the chair

They're all IPS, so the viewing angle doesn't change the color. I got the two side ones used off eBay fairly cheap, so they're aren't perfect. Pictures seem to exaggerate it a lot, my eyes adjust to it fairly well. Anyway, this long weekend I'll probably finish up my project to remotely turn on my other server and desktop.

Just tested all those IGBTs ive got and they all seem to work! time to end up shelving them for a few years it seems, lmfao

[QUOTE=nuttyboffin;44825123]Just tested all those IGBTs ive got and they all seem to work! time to end up shelving them for a few years it seems, lmfao[/QUOTE] I read that as LGBT and thought you were running some sort of slave trade!

[QUOTE=RoflKawpter;44825358]I read that as LGBT and thought you were running some sort of slave trade![/QUOTE] Who says im not and i didn't just mistype it *raises eyebrow and shifty eyes* But yeh, ive got all these IGBTs to use x.x got to find a largeish DC motor or somthing else to dump load.

[QUOTE=nuttyboffin;44825408]Who says im not and i didn't just mistype it *raises eyebrow and shifty eyes* But yeh, ive got all these IGBTs to use x.x got to find a largeish DC motor or somthing else to dump load.[/QUOTE] I gotta get some desoldering braid to get some of these hex-IGBTs off of these damn motor controller boards I've salvaged. Little solder-sucker bulb ain't cut out for it.

[QUOTE=Zero-Point;44825891]I gotta get some desoldering braid to get some of these hex-IGBTs off of these damn motor controller boards I've salvaged. Little solder-sucker bulb ain't cut out for it.[/QUOTE] D'awww those cute little ones :3 Yeh, anything with a lot of solder on it tends to be a pain to get off PCBs. Im just working on a bridge Rectifier using some 94A duel diode modules and a heatsink from the peltier units im still selling. Pics soon! :D [editline]16th May 2014[/editline] [URL=http://imgur.com/wJtez92][IMG]http://i.imgur.com/wJtez92l.jpg[/IMG][/URL] [URL=http://imgur.com/yBh569z][IMG]http://i.imgur.com/yBh569zl.jpg[/IMG][/URL] [URL=http://imgur.com/MuiyWXZ][IMG]http://i.imgur.com/MuiyWXZl.jpg[/IMG][/URL] There we go~ i think that is the best damn job ive ever done :D I made it for 3 phase, however i will likely only use 2 phases of it.

[QUOTE=nuttyboffin;44826089]D'awww those cute little ones :3 Yeh, anything with a lot of solder on it tends to be a pain to get off PCBs. Im just working on a bridge Rectifier using some 94A duel diode modules and a heatsink from the peltier units im still selling. Pics soon! :D [editline]16th May 2014[/editline] [URL=http://imgur.com/wJtez92][IMG]http://i.imgur.com/wJtez92l.jpg[/IMG][/URL] [URL=http://imgur.com/yBh569z][IMG]http://i.imgur.com/yBh569zl.jpg[/IMG][/URL] [URL=http://imgur.com/MuiyWXZ][IMG]http://i.imgur.com/MuiyWXZl.jpg[/IMG][/URL] There we go~ i think that is the best damn job ive ever done :D I made it for 3 phase, however i will likely only use 2 phases of it.[/QUOTE] They ain't that little actually. :v: [t]http://i.imgur.com/zfzbfnR.jpg[/t] They're a respectable size. Here's a heat-sink pulled from that unit: [t]http://i.imgur.com/jvfnxER.jpg[/t]

[QUOTE=Zero-Point;44828805]They ain't that little actually. :v: [t]http://i.imgur.com/zfzbfnR.jpg[/t] They're a respectable size. Here's a heat-sink pulled from that unit: [t]http://i.imgur.com/jvfnxER.jpg[/t][/QUOTE] Well it is compared to this: (3 modules = 6 IGBTs = 3 phase bridge. [t]http://i.imgur.com/l0U2RA6.jpg[/t] But yeh, i got one of those on a PCB, i will probibly scrap it however XD

put a hand in shot for scale

[QUOTE=sambooo;44832343]put a hand in shot for scale[/QUOTE] the large terminals are M8 bolts :P but ok. [img]http://i.imgur.com/rHNbw5K.jpg[/img] [img]http://i.imgur.com/RC0XaH7.jpg[/img]

[QUOTE=nuttyboffin;44831469]Well it is compared to this: (3 modules = 6 IGBTs = 3 phase bridge. [t]http://i.imgur.com/l0U2RA6.jpg[/t] But yeh, i got one of those on a PCB, i will probibly scrap it however XD[/QUOTE] Yeah, but it is just a 3-phase fan motor controller, granted it's rated for only a 5HP motor when assembled into this module. At any rate, you can't argue free, whatever the size. :v:

[QUOTE=Zero-Point;44834187]Yeah, but it is just a 3-phase fan motor controller, granted it's rated for only a 5HP motor when assembled into this module. At any rate, you can't argue free, whatever the size. :v:[/QUOTE] Exactly :3 Free price is best price.

[QUOTE=nuttyboffin;44834231]Exactly :3 Free price is best price.[/QUOTE] Plus on these boards I also get the driver ICs for free, which sweetens the deal. Don't think I'll be getting very many more of these though, think they're discontinued.

So I'm starting a project I've wanted to do for a long time. It's a secret but it's related to music. Kinda starting at square 0 here :V Step 1: Learn Digital Electronics via [URL="http://nptel.ac.in/courses/117106086/1"]http://nptel.ac.in/courses/117106086/1[/URL] This site is fantastic. Tons of university lectures all free. I'm like 20 lectures into this one and it's going well. After that I'll move onto some microcontroller units. It's not necessary but I like having an understanding of all the details before getting into something like this. I hate doing something not knowing why I did it, like when following a tutorial for example.

[QUOTE=CmdrMatthew;44809282][img_thumb]http://i.imgur.com/cVZvz1i.jpg[/img_thumb] Attempting to use my Arduino to program an ATTiny44A in system, so far got a light to turn on, can't figure out how to turn it off though...[/QUOTE] Is there a particular reason you're using an SMD edition Uno? The nice thing with the ATmega IC normally is that you can pluck it out once programmed and put it in projects permanently if you got some of them lying around.

Any Dutchies here willing to give me a link to a good webshop for components? I'd like to start ordering parts so I can get into this field. Cheers! :v: Oh adding to that; I've already got an Arduino Uno and I could go thriftshopping for old electronics, there's a couple in the area that I could raid. And I'd like to make a programmer for this Arduino Mini clone I got, it doesn't have a USB port on it.

[QUOTE=nuttyboffin;44774215]126 of the capacitors arrived just over half of them, 124 left for 250 total.. Along with 4 IGBTs. The IGBTs are: CM800DZ-34H Datasheet: [URL="http://www.mitsubishielectric-mesh.com/products/pdf/cm800dz-34h_e.pdf"]www.mitsubishielectric-mesh.com/products/pdf/cm800dz-34h_e.pdf[/URL] Pics: [IMG]http://i.imgur.com/IAvBg5u.jpg[/IMG] (third box hidden behind one of them)[/QUOTE] Jeez, I finished up a report on the design of a 100kvar reactive inverter, used for compensation on the power grid here the other day. That used IGBT's rated for 1200V and 300A RMS.

[QUOTE=Nightrazr;44844010]Any Dutchies here willing to give me a link to a good webshop for components? I'd like to start ordering parts so I can get into this field. Cheers! :v: Oh adding to that; I've already got an Arduino Uno and I could go thriftshopping for old electronics, there's a couple in the area that I could raid. And I'd like to make a programmer for this Arduino Mini clone I got, it doesn't have a USB port on it.[/QUOTE] You can use an Arduino as an ISP.

[QUOTE=ddrl46;44817184] I hope my table doesn't collapse.[/QUOTE] What's the thing with the nixie display I've seen one before and it's killing me

[QUOTE=Nightrazr;44844010]Any Dutchies here willing to give me a link to a good webshop for components? I'd like to start ordering parts so I can get into this field. Cheers! :v: Oh adding to that; I've already got an Arduino Uno and I could go thriftshopping for old electronics, there's a couple in the area that I could raid. And I'd like to make a programmer for this Arduino Mini clone I got, it doesn't have a USB port on it.[/QUOTE] [url]http://dickbest.nl/[/url] is pretty good, [url]http://eleshop.nl[/url] for some decently priced test gear. I'd avoid Conrad if possible, they tend to be overpriced. [editline]19th May 2014[/editline] [QUOTE=POLOPOZOZO;44846758]What's the thing with the nixie display I've seen one before and it's killing me[/QUOTE] That's a HP 5245L 50MHz frequency counter with HP 5257A 18GHz transfer oscillator plugin.

[QUOTE=scratch (nl);44839264]Is there a particular reason you're using an SMD edition Uno? The nice thing with the ATmega IC normally is that you can pluck it out once programmed and put it in projects permanently if you got some of them lying around.[/QUOTE]Because I had no idea what I was doing when I bought it.

[QUOTE=Nightrazr;44844010]Any Dutchies here willing to give me a link to a good webshop for components? I'd like to start ordering parts so I can get into this field. Cheers! :v: Oh adding to that; I've already got an Arduino Uno and I could go thriftshopping for old electronics, there's a couple in the area that I could raid. And I'd like to make a programmer for this Arduino Mini clone I got, it doesn't have a USB port on it.[/QUOTE] [URL]https://www.iprototype.nl/[/URL] Some things are overpriced though (or just cheaper at something like dx.com due to it being a knockoff but still functional), but fast delivery and an easy to browse website.

[QUOTE=BuG;44845590]Jeez, I finished up a report on the design of a 100kvar reactive inverter, used for compensation on the power grid here the other day. That used IGBT's rated for 1200V and 300A RMS.[/QUOTE] Saaaayyyyy Would you know anything about driving such large IGBTs?

[QUOTE=nuttyboffin;44832658]the large terminals are M8 bolts :P but ok. [IMG]http://i.imgur.com/rHNbw5K.jpg[/IMG] [IMG]http://i.imgur.com/RC0XaH7.jpg[/IMG][/QUOTE] Please make electric shower aka cold fire. [URL]http://www.teslauniverse.com/nikola-tesla-article-cold-fire?start=90[/URL] :)

[QUOTE=HeatPipe;44848379]Please make electric shower aka cold fire. [URL]http://www.teslauniverse.com/nikola-tesla-article-cold-fire?start=90[/URL] :)[/QUOTE] I don't think i would risk it XD

Anyone know how difficult / pricey it would be to get a laptop display working with a Raspberry Pi? My old laptop has just died and I wouldn't want to waste the opportunity :v:

[QUOTE=HeatPipe;44848379]Please make electric shower aka cold fire. [URL]http://www.teslauniverse.com/nikola-tesla-article-cold-fire?start=90[/URL] :)[/QUOTE] I wonder if we'd feel anything if he had succeeded with his power distribution scheme. Probably not since the amount necessary for lighting up a fluorescent light is less than that... though it's definitely possible to feel the field of power lines where that occurs, under certain circumstances. Hm...

I've been curious lately as to why Arduino's are so massively popular. There's nothing really unique about them is there? Except for maybe the price now that they're so popular.

[QUOTE=No_Excuses;44849852]I've been curious lately as to why Arduino's are so massively popular. There's nothing really unique about them is there? Except for maybe the price now that they're so popular.[/QUOTE] The ease of programming them (Both hardware and software) is a massive plus to newcomers, as they don't have to understand WinAVR or some ISP programmers like we do.