Simple voltage limiter
I recently added a 180MM computer muffin fan to my intake window. The fan, a silverstone FM181 which employs a variable speed 10k ohm potentiometer, has an operating voltage from 5v to 13.2v. ht...
Forum Discussion
Bend wrote:
Ken-
Still trying to solve the overvoltage problem bwtn optimally charging flooded batts while running volt limited (12-14v) RV appliances without isolating the batts. Device can be per appliance (low amps) or prior to the DC distro panel (20+ amps). Mex knows of the problem but I wish he would use english instead of EE. 8>)
Mex-
Whatever the end product, I’ll buy it.
What DCV devices in our camper do we have that are that sensitive to 15-16 VDC?
I haven't verified all of the 12 VDC circuits in my camper, but my guess is the senstive electronics have regulated voltage supplies on the PCB's and the relays/switches/fans/etc... can all handle the slightly elevated supply voltages.
Can anyone give a manufactures example of the 16 VDC exceeding supply requirements?
A simple relay and overvoltage circuit can open the DC path from the battery if needed...
