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Why am not able to get a grasp of PCB designing?

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redgear:
Many resistors are beefier in this design. I haven't calculated the power rating required and used slightly bigger ones. Proper calculation of power rating of resistors can help me bring down the size of the footprints, providing more space for traces.
 
P=V2/R, but what should be the value of the voltage? The voltage fed to the boost circuit? The maximum output voltage of the boost circuit?

redgear:

--- Quote from: tautech on November 13, 2019, 07:38:13 pm ---
--- Quote from: grbk on November 13, 2019, 07:29:51 pm ---Yes, that's a good point. In Kicad you can turn off unnecessary layers by unchecking them in the layer pane on the right. This gives you complete control over which layers are displayed. There's also a "high contrast" display mode that I like a lot; when you turn it on the active layer is displayed as normal, but other layers are displayed in a unobtrusive gray color that helps them fade into the background. Like tautech says this can be very helpful for focusing on what's currently important, and I recommend you try it.

--- End quote ---
Yep.  :)
Still redgear has to get his head around working with multiple layers and assigning any components properties to the correct layer which when done lets you better see on which layer they actually are.

Not the easiest project for first up but a little guidance will get him there.

--- End quote ---

I have now utilized both layers of the PCB. Is my design any better than it was? Can it be properly routed?

tautech:

--- Quote from: redgear on November 14, 2019, 08:15:26 am ---

I have now utilized both layers of the PCB. Is my design any better than it was? Can it be properly routed improved ?
(Attachment Link)

--- End quote ---
Yes.  :)

First thing I spotted, top 2 resistors by the switch....rotate them vertical for better connectivity/easier routing.
While the purists like every device group orientated the same sometimes it's easier to flip and swap to make for easier routing.
Apply similar thinking throughout the PCB and you'll be staggered how much easier things become.

Shift some component designators off the device so it's easier for us to pick a # that should be moved/flipped etc.
Stack
them
alongside
somehow
like this. :)

redgear:

--- Quote from: tautech on November 14, 2019, 09:03:32 am ---Yes.  :)

First thing I spotted, top 2 resistors by the switch....rotate them vertical for better connectivity/easier routing.
While the purists like every device group orientated the same sometimes it's easier to flip and swap to make for easier routing.
Apply similar thinking throughout the PCB and you'll be staggered how much easier things become.

Shift some component designators off the device so it's easier for us to pick a # that should be moved/flipped etc.
Stack
them
alongside
somehow
like this. :)

--- End quote ---

Thanks a lot! I am working on making the changes.

james_s:

--- Quote from: redgear on November 14, 2019, 05:07:06 am ---Many resistors are beefier in this design. I haven't calculated the power rating required and used slightly bigger ones. Proper calculation of power rating of resistors can help me bring down the size of the footprints, providing more space for traces.
 
P=V2/R, but what should be the value of the voltage? The voltage fed to the boost circuit? The maximum output voltage of the boost circuit?

--- End quote ---

The maximum voltage across the resistor. This of course depends heavily on where it is used, in most cases the power will be very low except for resistors used for current sensing and such.

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