I am building a field power supply that incorporates a lead acid car battery. When fully charged the battery shows a voltage of more than 13 volts. It is a 35Ah battery.
I am using this battery to power 12 volt devices such as telescope tracking mount and a Surface Pro 4 computer/tablet that I use to drive the mount. I am not yet sure what amperage I may be needing but so far about 5 amp being available may be adequate.
The tracking mount voltage is specified as 11 to 16 volt DC and its hunger level is at 4Amps. The computer, on the other hand, does not provide a range of DC input. We are just going by the fact that its AC power supply claims it is producing 12 volts DC. Henceforth I want to make sure to regulate the power output to the computer to 12 volt DC.
I don’t imagine I need to limit how much amperage it would take in because that is really a function of the computer itself. But it does take something like 2.58 Amp.
Can you point me to a product you have that I can easily incorporate into my design?
When looking at the available regulators here I see small amps indicated and I am not sure if that is the amp needed to run the regulator or if it is the amp that can pass through the regulator and to its destination.
Thanks a lot.