I have off the shelf BMS, Voltage converter and 6 function remote switch receiver that I want schematics for so I can merge all of them under one single schematic to be put into a circular PCB about the size of a CD (I used CD analogy because the PCB will have approximatly the same size and a center hole as well).
My online search so far came up empty since most of the scematics are for different devices with different Amp ratings, I've included pictures of both sides of the devices I have now for testing purposes but I'll be moving to the design stage once the testing is done and put all the PCB's in one single PCB.
Basically the circuit works this way:
A Li-Ion pack (4S-2P) powers up a set of 6 independently controlled devices, The devices require a steady 13V so a buck converter is used to convert the voltage from whatever voltage state the battery pack is on to 13V, then a multi function switch is used to turn ON and OFF the devices individually and remotly using a 6 button RF remote control.
If anyone used these exact PCB's and have schematics please share them with me, Thank you:
Top - 4S Battery Management System,
Middle - Buck Converter,
Bottom - Multifunction Switch Receiver: