Noob question: designing the surface for attaching a charging module

On 2015-09-10 9:40 AM, Alex Pilkevych wrote:

I recently finished a project and now want to make the pcb for it. But I

need this charging module: http://www.ebay.com/itm/140880716943

I thought I'd solder it to the main PCB I'll make in Eagle. As you can

see it has 4 pins, 2 of which can be ignored (since the input is from

the usb).

How do I make a rectangle with 2 pads for the outputs? It's size is

25x19. So how do I design my PCB to have the stated amount of space for

the module and the 2 pads?

Thanks and sorry for not knowing Eagle!

   

 

Best is to make a library part for it. Make yourself familiar with

creating library parts. Eagle is not the best software when it comes to

library maintenance but it can be mastered. for a beginner it is best to

do it this way:

1. Open an existing package such as DIP-8. Select the whole thing and do

a group copy.

2. Make a new package and call it LI_BAT_CHARGER_1 or whatever you like.

3. Paste the DIP-8 in there.

4. Move the outline (layer 21 or tplace, usually shown in light gray) so

you get the size 25mm x 19mm.

5. Delete all pads from the DIP package.

6. Click "Pad", select square and enter the desired diameter and drill

sizes. Don't worry that it's called diameter, it'll be square if you

select square.

7. Place four of those and name them as desired. I'd also name the

unused ones in case you later want to use this module somewhere else

where they are needed. Assign the "PAS" for passive, then you don't get

warnings in the ERC if you leave them unconnected.

8. Make a symbol that shows nicely on your schematic.

9. Finally combined and connect these two as a device.

All this may sound complicated but it's like learning to ride a bicycle.

Once you've done it 10-20 times it becomes routine.

Oh, and it's best to copy one of the exisiting libraries first, one

--

Regards, Joerg

http://www.analogconsultants.com/

On 2015-09-10 2:18 PM, Joerg wrote:

On 2015-09-10 9:40 AM, Alex Pilkevych wrote:

I recently finished a project and now want to make the pcb for it. But I

need this charging module: http://www.ebay.com/itm/140880716943

I thought I'd solder it to the main PCB I'll make in Eagle. As you can

see it has 4 pins, 2 of which can be ignored (since the input is from

the usb).

How do I make a rectangle with 2 pads for the outputs? It's size is

25x19. So how do I design my PCB to have the stated amount of space for

the module and the 2 pads?

Thanks and sorry for not knowing Eagle!

   

 

 

Best is to make a library part for it. Make yourself familiar with

creating library parts. Eagle is not the best software when it comes to

library maintenance but it can be mastered. for a beginner it is best to

do it this way:

 

1. Open an existing package such as DIP-8. Select the whole thing and do

a group copy.

 

2. Make a new package and call it LI_BAT_CHARGER_1 or whatever you like.

 

3. Paste the DIP-8 in there.

 

4. Move the outline (layer 21 or tplace, usually shown in light gray) so

you get the size 25mm x 19mm.

 

5. Delete all pads from the DIP package.

 

6. Click "Pad", select square and enter the desired diameter and drill

sizes. Don't worry that it's called diameter, it'll be square if you

select square.

 

7. Place four of those and name them as desired. I'd also name the

unused ones in case you later want to use this module somewhere else

where they are needed. Assign the "PAS" for passive, then you don't get

warnings in the ERC if you leave them unconnected.

 

8. Make a symbol that shows nicely on your schematic.

 

9. Finally combined and connect these two as a device.

 

All this may sound complicated but it's like learning to ride a bicycle.

Once you've done it 10-20 times it becomes routine.

 

Oh, and it's best to copy one of the exisiting libraries first, one

 

Oops, got cut. Copy a library that has a lot of parts you find useful.

Then you've got a start, can't mess up a shipped library and it won't be

over-written when you update the software. Name it something unique such

as alex_modules.lbr.

--

Regards, Joerg

http://www.analogconsultants.com/

Thank you very much!! Sorry for replying so late, but your advice helped a lot and I made it