Some KiCAD help, PLEASE?

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DavidEF
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Some KiCAD help, PLEASE?

I’m not much of at all a driver guru. I’ve made a few driver boards in Eagle. Since AutoCAD took over Eagle, it has gotten a bit weirder, and I’m trying something new now. So, I want to learn KiCAD. I had tried it before and didn’t like it for whatever reason, and now I’m back to trying it out. I found some tutorials online, but I have a small problem. I need some library parts that I can’t figure out how to get. Namely, I need AMC7135 regulators and I’m also looking for a particular PIC chip.

I know some of you guys use KiCAD. Will you please tell me how/where to get the library files I need? Or, if you had to make them yourself, would you be willing to share them with me? Innocent Furthermore, if you could give me any tips or tricks to help me move along with learning this new tool, that would be great. Even though I found some tutorials, there is still a big learning curve that I’m trying to get over. I would really appreciate the help.

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Cereal_killer
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No help, I use eagle7, but I’d be very interested in replies here and if you could list what you’ve watched / read already.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

DavidEF
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Here’s a jumping-off page for lots of different tutorials for KiCAD.

So far, I’ve only really read through the Getting Started tutorial, but I’ve glanced at some of the others. I also “searched” for KiCAD libraries and found that Digikey and Sparkfun both have Github repos full of KiCAD parts libraries. But I can’t find AMC7135 in either of them.

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DavidEF
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Hmmm… bump? Anyone?

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raccoon city
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DavidEF wrote:

Hmmm... bump? Anyone?

You're offering a bump?

Tempting, but I quit doing drugs years ago.  :P

DavidEF
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Yeah, I wasn’t a druggie, but this KiCAD… Ughh

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I’ll probably learn how to use it someday… but today isn’t that day.

For now, it seems your request for help has been met only by crickets and tumbleweeds. Not what you wanted, but it seems to be what you’ve got. So I hope you can cobble something together out of crickets, even if it’s not ideal.

Or, as Enya once said, it’s chickens together for underwear. You gotta do what you gotta do.

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Yeah, I just thought I’d ask around first. But now I’m gonna get right to work on making the AMC7135 library myself. If that goes well, I will make other libraries as well later.

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I tried KiCAD within the last few months and did not really like it. I moved on to Eagle, and like it better but it’s not perfect either. If I had to pick between the two for the task I am doing (designing a round PCB for the BLF Ultimate Lantern) I would pick Eagle. Primarily because I could find no way to make a round trace in KiCAD, and Eagle has that capability. Both are lacking a 7135 model, and I had to fake the PIC model for the ATTiny85.

Below are images of the current state of affairs, hoping to move if forward a bit tonight:

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DavidEF
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Nah, there’s definitely a AMC7135 model for Eagle. In fact, there’s more than one because some people made them with custom size GND pads. I don’t know about PIC though. I haven’t tried PIC with Eagle.

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yes, you are right, its been awhile since I used KiCAD

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DavidEF wrote:
… Namely, I need AMC7135 regulators and I’m also looking for…

Why God, why? Ughh

Even if you don't go fully regulated buck and/or boost, why not a regulated MOSFET driver? No chance to blow up emitters this way, and no @#$% with regulation and lower efficiency because of high PWM frequency. PWM freq can be raised much higher if switching a proper MOSFET.

This is not mean to be judgmental at all. I believe we need and are ready for a new generation of drivers. 

 

Cheers Party

DavidEF
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Barkuti wrote:

DavidEF wrote:
… Namely, I need AMC7135 regulators and I’m also looking for…


Why God, why? Ughh


Even if you don’t go fully regulated buck and/or boost, why not a regulated MOSFET driver? No chance to blow up emitters this way, and no @#$% with regulation and lower efficiency because of high PWM frequency. PWM freq can be raised much higher if switching a proper MOSFET.


This is not mean to be judgmental at all. I believe we need and are ready for a new generation of drivers. 


 


Cheers Party


I’m not smart enough? Best answer I’ve got unfortunately. Facepalm

I don’t know enough about electronics to design a good circuit, so I copy what other people have already made and just put it onto a different shape PCB for my own purpose. The AMC7135 is pretty well understood around here. We all know what it does. Plus, it’s cheap. Cash

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Barkuti wrote:
DavidEF wrote:
I need AMC7135 regulators
Why God, why? Ughh

Probably because they’re cheap, they’re easy, and they work pretty well.

Barkuti wrote:
This is not mean to be judgmental at all.

If you’re aware that something sounds judgmental, before posting, why not edit it until it doesn’t sound that way?

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ToyKeeper wrote:

If you're aware that something sounds judgmental, before posting, why not edit it until it doesn't sound that way?

Because the way you are (think, believe, etc) matters. I am responsible for my own beliefs, not of yours. Since this can be read by anyone there's nothing wrong with saying that, all is good.

 

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DavidEF
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Well, I found these two ways to convert stuff from Eagle to KiCAD.

The first is this set of conversion scripts. This is meant to convert a whole Eagle project to KiCAD. I don’t know if these scripts actually create new, separately accessible library parts or not. You can find the converter(s) on Github here.

The second thing I found was an online library conversion ‘service’ that can convert among many different formats, including Eagle to KiCAD. You upload the library in whatever format, then download it in whatever format. The website makes you register before letting you use the service. But, registration is free and the service is free as well. They also claim that you can use the service to keep up with your libraries and to share files with others, so it might be a repository of sorts. It is accessible here.

I have messed around a bit with both of these, but I haven’t gotten very far yet, so I can’t even tell you if it will work. I’ll try to remember to update here again once I get a chance to really dive into these.

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sbslider wrote:
…and I had to fake the PIC model for the ATTiny85.


What PIC do you need? I’ve got several eagle parts. 6Fxxxx?

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

DavidEF
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This one:

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DavidEF
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Backstory on the PIC: the picture is of a MELD-X driver from tterev3. A while back, he said he doesn’t mind if people copy his board designs and/or build new ones based off his. He only cares to keep the PIC firmware to himself. So, I was planning to make a new driver board to fit in a specific light and never got around to it. Now, I’m trying to get started again, and I need the PIC footprint for the PCB.

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Cereal_killer
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I have that part in Eagle…

Pretty sure tterev3 made the eagle footprint I use, that’s his driver, did you ask him if he happens to have it for KiCAD too?

Edit to reply to the post you made at the same time as I made this one: what light? I have MLED board designs for several different lights.

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Cereal_killer wrote:
sbslider wrote:
…and I had to fake the PIC model for the ATTiny85.


What PIC do you need? I’ve got several eagle parts. 6Fxxxx?

ATTiny85. Perhaps calling it a PIC is a misnomer.

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DavidEF
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No, I didn’t ask tterev3. I just decided to try KiCAD again a couple days ago, and I hadn’t got that far yet.

I originally was going to make one for TheOnlyDocc for his Wall-E light. but he was having trouble with other mods he was trying to make, and never did get me the measurements. (yet?) Now I have a light that I won from gchart’s giveaway here. It is a Brinyte B21 Complex and he did a review of it here but he said he thought it was a pre-production sample, so may not be exactly like the final one they eventually introduce to market. I have two MELD-X drivers from tterev3 so I can use one as a donor for a new driver if it is anything weird. I haven’t opened it yet to see the driver.

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DavidEF
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OOOPS, I just realized that CK was talking to sbslider. Even quoted text. Facepalm

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Hey man, our convo was relevant too lol Silly

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I haven’t used KiCAD but the PIC16F1575 is just a standard QFN-16 4×4 package that I’m sure exists in some standard libraries. If my Eagle files can be of any help let me know.

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Thanks for the offer tterev3! Yeah, if you would give me the Eagle schematic I could take it from there. I was just trying to get started with KiCAD here but it seems KiCAD has too much learning curve still for me, especially since it lacks libraries for some of the common parts we use for drivers.

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I only know of it because I have played with the mechanical design software, but I thought I would throw out an alternative program: DesignSpark PCB?

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Here’s the board and schematic files. I think these will let you copy the microcontroller part without needing the whole library. If that doesn’t work let me know

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Thanks! That should be enough.

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Inspired from David from another thread today I tried to make AMC7135 Kicad symbol model for it. Also it use the SOT-89-3 layout from standart Kicad Footprint Library. In library are there 2 components AMC7135 and AMC7135_H. Second is with larger thermal pad for easy handsoldering linked also to SOT-89-3 Handsoldeirng footprint. If you have any suggestions I will try to make the changes to library components or if something is missing from standart libraries I will try to make model for it.
https://drive.google.com/open?id=1bVzYn4ugSZCWIlPB4Yx3BUFpIL2ZyQG8