// #eevblog — 2026-08-18
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00:12:09 Join: Kuschelpony ([email protected]) to #EEVblog
00:32:49 <arch> so im reading a little bit about resonant converters and in this block diagram on page 1, it shows L_R series inductor. from opening up a few small handful of dead llc power supplies, all of mine had the series inductor. but can the transformer's leakage inductance itself substitute in more advanced designs? https://media.monolithicpower.com/mps_cms_document/2/0/2022-aip-understanding-llc-operation-part-1-switches-and-tank_r1.0_1.pdf
00:33:32 <Kuschelpony> yes!
00:33:33 <arch> tldr: can we skip the series inductor if we have a purpose built transformer with high leakage inductance, like maybe split winding, or airgapped core
00:33:44 <Kuschelpony> exactly this
00:33:58 <arch> awesome. thank you. just wanted to confirm
00:35:48 <Kuschelpony> btw: an airgapped core itself does NOT cause leakage inductance, but it makes it much easier to arrange two seperate coils with loose coupling
00:37:31 <Kuschelpony> usuall you prototype with an transformer having two close coupled coils and a seperate series inductor, and then later you can try to build an transformer that has the right amount of leakage builtin
00:41:42 <Kuschelpony> i experimented with this myself in the early 00s to build converters to run fluorecent lamps on 12V batteries, similar to the baxandall converter but with inductive rather than capacitive current limiting and with auxiliary windings to heat the lamp cathodes
00:53:44 <arch> Kuschelpony, that sounds fun. was it an efficient proof of concept build? do you recall the efficiency %?
00:54:31 <Kuschelpony> i had no way to measure efficiency, all i cared was that the lamps had normal brightness and the transistors stayed totally cold
00:55:42 <arch> ahh, fair enough. hmm, well, could you use a lumen meter for light output, and measure input power; do the same across your comparison. but idk who has a lumen meter lying around
00:56:00 <Kuschelpony> this was the time when LED were not yet useful for lighting, but the 12v fluorescent lamps you could buy were REAL shit (single transistor blocking oscilator that kills the fluorescent tube after some ten hours of operation), so i designed someting of my own
00:58:37 <arch> i have something like 20, 48 inch long tube fluorescents. i need to get rid of them. should i bag em up and smash em outside and toss it in the garbage? or reuse them for something
00:59:23 <arch> note: those lights are from previous owner of my house; was a cheap bastard who didn't wanna upgrade to LEDs. literally whole house was fitted with fluorescents and incandescents
01:00:55 <Kuschelpony> do not smash them, that will release mercury vapour and also toxic fluorescent powder dust
01:01:37 <arch> hm, well, i will put them outside on my lawn with a sign "FREE FLUORESCENT LIGHTS" and hopefully someone takes them all
01:01:53 <Kuschelpony> thats an idea
01:04:37 <arch> those tubes actually were in my garage as shop lights, but the housing for the tubes was rusted like crazy. or i would have kept those tube lights. just buying the housings for the fluorescent tube lights these days, with UL listing, will cost a small fortune compared to swapping them out with LED bulbs inside ceiling mount circular boxes
01:05:16 <arch> besides, with the circular boxes, i could put in smart lightbulbs and have a disco inside the garage lol
01:09:53 <arch> kind of like: https://tenor.com/view/jay69design-gif-3294420944155219561
01:09:54 <EEVBot> [url] Jay69design GIF - Jay69design - Discover & Share GIFs | tenor.com
01:50:27 Join: DHess_US ([email protected]) to #EEVblog
02:45:06 <MrMobodies> Nearly got run over today.
02:46:08 <MrMobodies> Very busy traffic in this village and one car was slowing down and signalling to turn right. So as I crossed the car speeded up and just missed it.
02:47:32 <MrMobodies> There were many cars on the way to Wisbech racing one another and overtaking.
02:48:07 <MrMobodies> Recently they limited that road from 60mph to 50mph
02:48:19 <MrMobodies> they need to start putting speed camera's down there
02:49:31 <MrMobodies> what an interesting Gif, work hard play hard.
02:50:37 <MrMobodies> quite frightening experience for the first time nearly being run over. Next time someone indiciates and slow down I am not going to trust them when trying to cross the road.
02:51:16 <MrMobodies> I think they realized they were about to make a wrong turn and didn't care about the pedestrains crossing.
03:41:55 <DHess_US> Never cross in front of a car based on its blinker.
03:42:43 <DHess_US> In the US, the blinker isn't considered relevant. If you cross in front and they hit you, it would be your fault no matter what they were signaling.
03:43:03 <DHess_US> Also commonly used for insurance fraud.
03:44:18 <Kuschelpony> people in the usa use the blinker?
03:44:48 <DHess_US> Yes, to trick people into crossing the street in front of them so they can run them over.
03:45:50 <DHess_US> I got stopped once on my bicycle by a cop *because* I signal a left turn with my arm. He wanted to congratulate me, by of course committing a 4th amendment violation.
04:05:47 Quit: Kuschelpony ([email protected]) Quit: Ex-Chat
05:27:39 <MrMobodies> I remember a driver tried something similar to me with my instructor in 2012
05:27:58 <MrMobodies> I lady driver decided not to go around this round about.
05:28:08 <MrMobodies> I waited for her as she was on the left turning
05:28:17 <MrMobodies> she kept flashed her lights
05:28:33 <MrMobodies> so I went, and then as soon as I got close she pulled out right in front
05:28:50 <MrMobodies> my instructor said that's the reason I should have waited
05:29:46 <MrMobodies> apparently I heard that is also against the law, to flash your lights when uncessary, in making gestures to other drivers and something to do with distraction
05:29:52 <MrMobodies> Look for pin outs on this fan
05:29:56 <MrMobodies> 4715kl-04w-b56,
05:30:01 <MrMobodies> NMB-MAT
05:30:15 <MrMobodies> Can't find much about it or that exact model
05:31:08 <MrMobodies> To find this
05:31:10 <MrMobodies> https://i.postimg.cc/zX1xrfBw/Scumbags.jpg
05:31:21 <MrMobodies> " In response to a legal request submitted to Google, we have removed 1 result(s) from this page. If you wish, you may read more about the request at LumenDatabase.org. "
05:40:50 Quit: DHess_US ([email protected]) Quit: Later Synapsid Tetrapods
05:41:00 Join: DHess_US ([email protected]) to #EEVblog
06:05:43 <MrMobodies> The wooden kitchen chair I was sitting on just collapsed
06:06:04 <MrMobodies> Absolutely STUPID design. They just GLUED it together, holes for screws but no screws.
06:07:02 <MrMobodies> just some flimsy wooden dlah/inserts and no warning where I managed to catch the table surface as the seat collapsed and wood broke off
06:14:11 <MrMobodies> Found this on DuckDuckGo
06:14:13 <MrMobodies> https://diagramweb.net/nmb-mat-4715kl-04w-b56-wiring-diagram.html
06:14:13 <EEVBot> [url] Attention Required! | Cloudflare | diagramweb.net
06:16:17 <MrMobodies> Neither does that URL or "Nmb-mat 4715kl-04w-b56 Wiring Diagram" turn up on Google
06:16:33 <MrMobodies> So it looks these guides are beng censored
06:17:04 <MrMobodies> In about 2012 there use to be many websites I remember like that detailing the pins on power supplies and fans.
06:17:49 <MrMobodies> Maybe i should start a thread on it and another one with this with credits to the author.
07:38:27 Quit: DHess_US ([email protected]) Ping timeout: 2 minutes
08:30:14 <steve30> i never thought i'd be so pleased to see it raining
08:32:06 <arch> \o/
08:32:06 <EEVBot> |
08:32:06 <EEVBot> > {
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13:51:23 <MrMobodies> Absolutely P*SSED with VLC
13:51:41 <MrMobodies> Wondering WHY my streaming batch file wasn't working
13:52:06 <MrMobodies> I wasted an HOUR to find it, by default, when I close the player, it wasn't closing... it minized to the traybar.
13:52:13 <MrMobodies> now it works what a stupid idea
13:53:14 <MrMobodies> When I have a media player open I want to see it by handle, I might want to close it down not have it hidden there doing things I don't want it to do what a stupid default prefernece they set.
13:53:35 <MrMobodies> Start C:\VideoLAN\vlc.exe "dshow:// :dshow-vdev="None" :dshow-adev=Microphone" :sout=#transcode{vcodec=none,acodec=mp3,ab=128,channels=2,samplerate=44100,scodec=none}:http{dst=:8081/stream.mp3} :no-sout-all :sout-keep
13:54:14 <MrMobodies> Nothing wrong with that, I just changed the recording but it was playing with the a different sound card not connecte dup
13:55:21 <MrMobodies> I am trying to get the recordings as realtime as I can for some visuals
13:59:10 <MrMobodies> https://i.postimg.cc/pXBbdMRR/Visuals.jpg
14:00:00 <MrMobodies> All working now but slipped up over than hiding in the traybar than closing. Thanks to some arrogants who assume the users want it like that.
14:00:11 <MrMobodies> an hour wasted on that
14:00:41 <MrMobodies> unfortunately there still seems to be a second lag between the recording and visual
14:03:24 <MrMobodies> aah if I adjust the value to 5 instead of 0 the lag seems to reduce
14:05:19 <MrMobodies> https://raspberrypi.stackexchange.com/questions/104829/vlc-player-logo-stays-at-task-bar-even-after-closing
14:05:19 <EEVBot> [url] Just a moment... | raspberrypi.stackexchange.com
14:06:19 <MrMobodies> Yep how stupid is that. That's the sort of behave I'd expect when minimizing not closing. When I click close, it should close and not do what i don't want it to do.
14:07:02 <MrMobodies> Developers at VLC who think they know better than their users
14:07:08 <MrMobodies> when it comes to that
14:14:25 <MrMobodies> I got the windows open and I can smell burning outside, despite it raining.
14:20:47 <MrMobodies> It just stopped raining heavily a few hours ago. It is now 5:20 in the morning and look at this
14:20:49 <MrMobodies> https://i.postimg.cc/3RJHY1fP/IMG-20260818-051910.jpg
14:21:36 <MrMobodies> It has dried up so quickly which usually happens in the day.
15:45:10 Quit: audiovial ([email protected]) Client exited
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17:55:11 Quit: pa1983 ([email protected]) Connection closed
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18:50:22 <steve30> How do you end up simultaneously being Straight, Bicurious, Heterosexual, and Gay?
21:07:50 <rc-garage> why do you want to know?
21:08:11 <rc-garage> but, they have that in universities these days.
21:08:38 <rc-garage> so, sign up for that, or just try on your own, then take the test?
21:09:44 <electrohead> yeah that's the best bet, just test for all of the things
21:12:10 <rc-garage> yep
21:20:28 <electrohead> oi!
21:25:33 <rc-garage> yep
21:26:39 <rc-garage> https://rostiljijada.rs/
21:26:40 <EEVBot> [url] Rostiljijada | rostiljijada.rs
21:55:46 <electrohead> what's this about?
21:57:25 <rc-garage> some kind of grilled food contest, and some weird music sort of thing at the same time, I think
22:03:01 <electrohead> ahh, lol
22:10:41 <rc-garage> https://rostiljijada.rs/takmicenje-najveca-pljeskavica/
22:10:43 <EEVBot> [url] Takmičenje, najveća pljeskavica | rostiljijada.rs
22:11:27 <rc-garage> 90 kg burger, that has to be enough for most
22:12:25 <steve30> someone on fetlife.com put that down as their sexuality
22:13:09 <electrohead> is the lady in red part of the prize? lol
22:13:40 <rc-garage> she is part of this years burger. she won last year
22:13:46 <rc-garage> I think
22:14:00 <electrohead> well she wins my heart every year, that's for sure
22:14:02 <electrohead> lol
22:19:18 <steve30> oh no, a professional programmer who hacks in his spare time hacked my computer and videod me playing with myself while watching porn, and wants $1350 in Bitcoin.
22:20:45 <rc-garage> or else....he would video himself, and.... what?
22:25:46 <steve30> In other news, in the library I picked up a leaflet dated 2018 from an NHS body which ceased to exist about 4 years ago. Also got one for a health phone app which was discontinued over 2 years ago.
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