this is powered off two 20 Ah 12 volt AGM deep cycle battery’s in series.to form 26.8V volts at full charged battery power…it is a D.C adjustable regulator…multi tapped…so basically is all step down…or “buck” type system …
it has an 6Amp 35 v linear supply feeding into an mmpt 60 Amp smart regulator so it is well maintained on the input regulation.
the input terminals are at the center of the supply and can be powered by any supply that you may want to use 30 volt max if the need be
so you can use it independently of the battery via another input power supply if you wish …but is mostly used as a bench unit screwed to my test and design bench…not shown… other wise it is connected to the battery`s. 30 volts D.C.
it has 2 ammeters one is the 10A hooked directly to the input terminals and the other is a 5 A on the
5 volt rail which is self explanatory
i use to power my sbc`s basically .or anything else i like the 12 volt rail is pretty much constant to power routers or 12 volt devices like amplifiers and or devices it is directly connected to the 10A ammeter…
it also has a single 20 volt D.C voltmeter and 4 push button switches to test the outputs of the regulators.so as you can see at a glance what the input/output voltages are set too before switching any of them on.
they are directly coupled to the input supply and is constantly fed via the input terminals.
it also has an input power switch not seen because it is parallel to the 19 volt regulator
so you cannot see it.is fitted with an 15 amp panel mount 2AG fuse holder to be fitted.at a latter…date…
i set them firstly using a dmm connected to the outputs first…
!: 12 volts output
2: 5 volts output
3: 19 volts output
4 : input volts which has a voltage divider resistor so full scale is 40 volts only on the input switch rail.
it has 3 output rails set at 5.2v 12.8 volt and the 19 volt for the monitors or laptop or any device that uses 19 volts…still all are adjustable but i set them to the above voltages …basically…
i built it over time as i had the need for it.is not fancy but it works …i don’t have access to a machine shop