OpenMarine
Max voltage - Printable Version

+- OpenMarine (https://forum.openmarine.net)
+-- Forum: MacArthur HAT (https://forum.openmarine.net/forumdisplay.php?fid=29)
+--- Forum: General discussion (https://forum.openmarine.net/forumdisplay.php?fid=30)
+--- Thread: Max voltage (/showthread.php?tid=5462)



Max voltage - gordan - 2024-06-09

Hi,

   Power management - MacArthur HAT v1.2 Documentation (macarthur-hat-documentation.readthedocs.io) clearly says that the input and SW voltage should be 12V. However we know that the voltage provided by alternators is higher than 12V and that the Power module Pololu - 5V, 3.2A Step-Down Voltage Regulator D36V28F5 accepts up to 50V.

  What is the actual maximum voltage that may be safely used for power and SW input? 

Thanks!


RE: Max voltage - Adrian - 2024-06-10

While the power module could handle higher voltages, the protection circuit on the MacArthur HAT is designed for a 12V system. The maximum voltage is around 15.6V, defined by the TVS diode D1.


RE: Max voltage - yoloeveryday - 2024-09-23

(2024-06-10, 05:04 AM)Adrian Wrote: While the power module could handle higher voltages, the protection circuit on the MacArthur HAT is designed for a 12V system. The maximum voltage is around 15.6V, defined by the TVS diode D1.

So what is the minimum voltage?


RE: Max voltage - Adrian - 2024-09-26

Should be good down to at least 7V or so.