Motor h-bridge nchannel version 2

This is a single PCB for the two n channel mosfet circuits.  It's the same as the two separate n channel PCBs but with only one LM2596 series voltage regulator.  I used the LM2596 regulators because I had some spare ones but you might be better using a LM317.  That's because the LM2596 is a buck switching regulator and requires an inductor on the output.  It also gives a little ripple on the output voltage although that should not be a problem.  This circuit works OK powered from a 19 volt power supply but when I tried a 24 volt and 32 volt power supply that burnt out the LM2596 voltage regulator on power up.  I don't know why.  The LM2596 voltage regulator is rated at 40 volt.

Eagle schematic NChannel8.sch (click here to download)

Eagle board file NChannel8.brd (click here to download)

Board layout top side.

Board layout bottom side.

The finished PCB.

How it all wires together to make a H-bridge.

Side view

Arduino Uno

LED interface PCB

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This page is under construction 2016-10-07

All downloadable files are in https://steve54798.wixsite.com/filecab/motor 

Eagle