2020-02-10, 11:58 AM
(2020-02-09, 10:55 AM)Didier B Wrote: Hi !
I have used this type of power supply (XL4015) for three years, and they gave me full satisfaction.Also, but optional :
- I use to "stabilize" the big coil with 2 drops of hot glue on each side to prevent any possible damage due to vibrations ;
(Easily found on ebay - search XL4015 -, note a new type of PCB is available with a flat mounted Coil)
- Important : use a Schottky 5A diode as 'In+' connection to prevent any damage in case of reverse connection. ;
- I use headers, or excess length of the diode legs, for the 3 other connections to avoid welding the wires directly to the PCB ;
- I set the output voltage to 5.20 VDC, and then lock the potentiometer with tow drops of nail varnish.
- I use wire-wrapping to connect the Out + and - to the GPIO header.
- Connection to boat power is made via a barrel DC connector 5,5-3,1, + insde.
Good tips how is it with a Rpi 4? I use screw terminals. I just cut 1 side off.