12v 30a Switching Power Supply Schematic. Each of the schematic is very simple to construct and will function without problems if you respect the maximum power supply ratings. You should use a 12v 13 8v ham radio power supply.
2 times two mr750 mr7510 diodes mr750 6 ampere diode or 2 times 3 1n5401 1n5408 diodes. R3 1k 0 5 watt. Dc 12v max 30a 360w.
1 check the input power voltage.
Here is a high current 13 8v power supply circuit. Alinco dm 30 digital power supplies are an affordable switching power supply that packs a lot of features including anderson powerpole connectors. Power supply does not work. First power supply circuit is built with bd139 one zener diode and a few passive components.