On Tue, Apr 16, 2024 at 1:25 PM Russell Senior <russ...@personaltelco.net> wrote:
> > ALL run on some approximation of 12V DC. Yay! >> > > FYI: Pascal, the PC Engines guy, warned me that the APU took "precisely > 12V", or at least it didn't have the high end margin that many 12V devices > do. You should investigate that further before plugging in to higher > voltages than the standard power supply provides. > > All of the APU2 and APU4 schematics I have found seem to have a TVS diode, SMBJ14A, which is spec'd with a Reverse Standoff Voltage of 14V and Breakdown Voltage Min/Max of 15.6/17.2, respectively. As a non-EE, it looks like 12.8V should be safe. Check the datasheet. -- Russell Senior russ...@personaltelco.net