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Thread: Looking for a little PCB design help.

  1. #11
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    Default Re: Looking for a little PCB design help.

    *dupe*
    "Jack of all trades, master of none,

    Certainly better than a master of one"
    Projects:
    [URL]http://hackaday.io/project/1092-Raptor12-AC-light-controller[/URL]

    Videos
    [URL]http://www.youtube.com/user/KingOfKYA/videos?flow=grid&view=0[/URL]

  2. #12
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    Default Re: Looking for a little PCB design help.

    OH and if you not sure if your part is right. Just print it out on paper they are plenty accurate for that.

    Also just to add more ideas, look up polyfuse, there resetable fuses.
    http://en.wikipedia.org/wiki/Resettable_fuse
    "Jack of all trades, master of none,

    Certainly better than a master of one"
    Projects:
    [URL]http://hackaday.io/project/1092-Raptor12-AC-light-controller[/URL]

    Videos
    [URL]http://www.youtube.com/user/KingOfKYA/videos?flow=grid&view=0[/URL]

  3. #13
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    Default Re: Looking for a little PCB design help.

    I owe a big Thank You to RobG for the fuse part help!

    Here is what I have so far.........
    4thtry5vpcb_zps3179a5a2.jpg

    4thtry5vpcbsketchup_zps2c0f4019.jpg


    The only question I have left is on the traces size for where the left plugs connect to the left side of the fuse. I made them 1.016 mm thick but not sure if that is enough for each plug or if the clearance is enough between them and the +5 pour. Each plug will handle a max of 3 amps for what I have planned for it. Anyone care to give it a good once over and see if you think I should change or add anything?

    Attached are the updated SCH file and BRD file.
    Attached Files Attached Files

  4. #14
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    Default Re: Looking for a little PCB design help.

    Put my name on it also......just kidding. I thought of this also after I saw all the problems about fusing and power injections. I just did not have the time or program knowledge to get it done. Always wanted to learn....

    But good job. SO when is the group buy?
    2017 - Hmmmm...lots has changed...
    Facebook: [URL="https://www.facebook.com/Stevensfamilylightshow/"]Stevensfamilylightshow[/URL]
    Youtube: [URL="http://www.youtube.com/channel/UCodTAksQo4tgLAyabUe1-dg"]Stevens Family Light Show[/URL]
    Web: [URL="http://www.stevenslightshow.com"]http://www.stevenslightshow.com[/URL] (under construction)
    [img]http://sig.falconchristmas.com/18222[/img]

  5. #15
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    Default Re: Looking for a little PCB design help.

    Not to dissuade you from your endeavor - - but - have you thought of something like THIS and THIS instead? I use these quite a bit for power distribution - there are other types and other places to get them as well - anyway - just wanted to be sure you were aware of them...
    [COLOR=#000080][B][I]Brian[/I][/B][/COLOR]

    [COLOR=#ff0000]Christmas in San Jose! - [URL="http://www.christmasinsj.com"]WEB[/URL] - [URL="https://www.facebook.com/ChristmasInSanJose"]FB[/URL] - [URL="https://www.youtube.com/playlist?list=PL1W78s7liEQEE0ed7WSyLF7B6j3lBX43w"]VIDEOS[/URL]
    [/COLOR][COLOR=#800080]Halloween in San Jose! - [URL="https://www.facebook.com/pages/Halloween-in-San-Jose/356280784428581?ref=tn_tnmn"]FB[/URL]
    [SIZE=1]2015 Halloween Show - Planning now - hopefully some house projection...
    2015 Christmas Show - 5x E681-12, 1x 6804, Ren48LSD, 3x RenSS16, 1x Falcon16v2 (w/expander), 24x90 WS2811 pixel MT (James MT Strips), 12x DIYC Floods, SuperPixelStar, 3x Pixel Arches, PixaBulb House outline
    [/SIZE]
    [/COLOR][SIZE=3][COLOR=#008000][I]Ignorance is Temporary [/I][/COLOR][COLOR=#800080][I]- [/I][/COLOR][COLOR=#ff0000][I]Stupidity is Forever[/I][/COLOR][COLOR=#800080][I]...[/I][/COLOR][/SIZE][I][COLOR=#ff0000]
    [/COLOR][/I]

  6. #16
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    Default Re: Looking for a little PCB design help.

    Yea I actually used a couple of those last year but didn't really like them. When I took down the display I was up on the roof when I realized I didn't have a screwdriver but I had my cutters so all power injection on the roof just got cut. This year I wanted a fused panel with quick connects to just plug and unplug. Couldn't find anything that would work that wasn't insanely expensive and I'm not a fan of pigtails so I downloaded eagle and figured I would attempt to make what I needed.

  7. #17
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    Default Re: Looking for a little PCB design help.

    Looks good to me. Clearance isn't a huge issue on 5V. Here's the current guide from ExpressPCB. It's for 1oz copper; which is the standard copper thickness.

    0.010" 0.3 Amps
    0.015" 0.4 Amps
    0.020" 0.7 Amps
    0.025" 1.0 Amps
    0.050" 2.0 Amps
    0.100" 4.0 Amps
    0.150" 6.0 Amps


    /mike

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  9. #18
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    Default Re: Looking for a little PCB design help.

    Good post info and content, coo-toes to you for having addressed the over current protection for your branch circuits, I haven't seen a lot of fuses being used on here, or people don't talk about this topic.
    Just started with Eagle myself but have installed pcb's in controls for over 30 years, I like the blade type of fuses vs the glass for low voltage controls and have found that if you pick a part that has a large
    supply/manufacturing base the price point is cheaper(thank you car industry), I found a web page that had a trace calculator but wanted to much info and prefer the straight forward look it up on a list method.
    Thanks.....

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