Hi. Starting a thread with Marks blessing and several forum members inquiries about slimmed down version of AmyAlice brilliant smps filter. Size is 6.5cmx2.8cm
To start off, everything is the same as on OG AmyAlice BOM and schematic (with addition of power on led, doesn't influence the circuit in the least, just adds visual). Size is slimmed down to my personal preference due to me utilizing quite small cases for most of my projects, and slim pcbs always find a way to fit in. There is also a factor of my OCD for aesthetics, so i make stuff that looks good to my eye.
Version 1 is now v1.01 as i increased pad sizes for much easier hand soldering. I usually use hotplate, but since it's a public release, it will definitely help out whoever decides to buils it (you can see on 3d rendering component sizes and increased pad sizes). Device is tested (included photos of V1 with regular pad sizes, hand soldered to test) working as intended. There will be even smaller, slimmer versions in the future, topic will be updated accordingly.
UltraSlim V1.01 at post #15
Size 62x14mm.
To start off, everything is the same as on OG AmyAlice BOM and schematic (with addition of power on led, doesn't influence the circuit in the least, just adds visual). Size is slimmed down to my personal preference due to me utilizing quite small cases for most of my projects, and slim pcbs always find a way to fit in. There is also a factor of my OCD for aesthetics, so i make stuff that looks good to my eye.
Version 1 is now v1.01 as i increased pad sizes for much easier hand soldering. I usually use hotplate, but since it's a public release, it will definitely help out whoever decides to buils it (you can see on 3d rendering component sizes and increased pad sizes). Device is tested (included photos of V1 with regular pad sizes, hand soldered to test) working as intended. There will be even smaller, slimmer versions in the future, topic will be updated accordingly.
UltraSlim V1.01 at post #15
Size 62x14mm.
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Brijac thank you, but I don´t have expertise to request from jlcpcb. Please, if possible make a budget to send me, 2 or 4 pcb.
New version, ultra slim , just 58x14mm. It's the limit of what it can be boiled down to. There is no free candy, so capacitor height is what determines this version. It is around 1cm more in height due to caps. You can fit this pretty much anywhere if height of the enclose is 3cm or more (which is about 99% cases of enclosures you would use this in). Pads have increased size for ease of hand soldering, but led is slimmed down to 0603, only for experienced soldering users (not necessary for functionality, only a pilot light so you can easily skip). Enjoy.
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@Brijac I'm trying to get these made through JLPCB and the attached image is an email I received from them. Not sure I completely understand the revision they want to make. I told them they're supposed to be half circles, but to modify them however they see fit.
This is my first time using their service. $5.40 for 10 boards shipped, so not too worried if they don't turn out right.
Edit: Never mind, I'm an idiot and didn't click the option for castellated holes.
This is my first time using their service. $5.40 for 10 boards shipped, so not too worried if they don't turn out right.
Edit: Never mind, I'm an idiot and didn't click the option for castellated holes.
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They want $36 to add castellated holes. 🤯
They can proceed without adding them, but said there will be "burrs". I don't care if it looks like a rodent chewed the edges; I'm not paying $36 for some fancy half circles.
They can proceed without adding them, but said there will be "burrs". I don't care if it looks like a rodent chewed the edges; I'm not paying $36 for some fancy half circles.
Hi. Just tell them to make them as they are in the file, without metalized edges then. They contacted me as well, told them and the same and didn't have an issue. I'll make a gerber version without metalized edges, that will count as outline without them having to contact i guess.
Design choice with smidge more space preserving in case edges hit an obstacle, or a simple pin on one side similar to nvme. I'll put out version without metalization and one extended with whole hole.
Hi, yes. Exactly the same, just made little bit better routing and much more compact size.
It was intended as nvme drop in, saves a tiny bit more space. In the next post, i'm posting ones without indents.
If you don't need that ultra slim, i'd rather recommend the original slim in the first post.
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UltraSlim version v1.01, removed half holes, so it's a bit longer board at 62mm now (but keeps the width of 14mm), which is still great if you have slim places in the case.
Hi Brijac...are the smd LED and smd resistor (what value? 10K?, 20K?) both 1206 size on the V1.01?
Many thanks, Pete
Many thanks, Pete
Hi turion. On the first slim it is 1206 for resistor, and led is larger pad for 3528 leds, but on v1.01 ultra slim it is a smaller one 0603 led (don't remember for resistor, i'm not at my pc atm but it's smaller as well) as space did not permit much (i wouldn't recommend soldering that one if inexperienced in small smd soldering and no proper soldering iron tip). As for value for resistors, it depends on the led (and how bright you want it to be). Formula is R=(Vs-Vf)/If. Where Vs is voltage supply, Vf is forward voltage of the led, and If is forward current of the led. For example if an led has forward voltage of 2V (usually red ones), and forward current 20mA. And you use 24V smps, the resistor value needed is 1.1k. That value can be higher if you want you led more dim as most modern are very bright, but it shouldn't be less than that as you risk damaging the led in that case. I've wen't up to 10k resistors for some leds from the drawer, as some were extremely bright 🙂 I can try and place larger led pads later in the day.
Brijac, thanks much for the info. I usually use 10K resistors for thru-hole LEDs as that's usually enough to see the power's flowing but I have little experience with smd LEDs. I'll have to order up some 3528 LEDs then since everything I have in my components stash is smaller than 1206. I'm also following your pic (attached) for directional placement of the diode, which also makes sense based on the schematic.
Cheers
Cheers
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It's the same for most new leds. 10k is what i usually put too for pilot light leds. On the picture is 1206 led, so that can fit on the pad as well.
Even if simple, I wished you put some silk screen for the component values - I realise this as I have a few US v1.01 now in my hand 🙂 Thanks for making them available! Would you please care to still make a picture of the board with components marked for values? Now for some soldering....
Thanks!
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Thanks!
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