These work... Period http://www.pulspower.com/products/show/product/detail/slr2100/
On Oct 15, 2016 7:23 PM, "Chuck McCown" <[email protected]> wrote: > I know you know this. Diode voltage drop depends on current. If the > router has times when it is drawing significantly less current, then the > voltage drop will be less and vice versa. I know everyone cites .6 volts > for a PN silicon junction but it is more like double that on many power > rectifiers. A common 1N4004 has a 1 volt drop at 1 amp. But only about .2 > volts down in the microamp region. > ------------------------------ > > *From: *"TJ Trout" <[email protected]> > *To: *[email protected] > *Sent: *Saturday, October 15, 2016 6:43:04 PM > *Subject: *[AFMUG] dual psu with diode, ccr1036 wierdness > > to increase reliability on my new ccr1036 router, I decided to add a > second 24v psu and isolate the two with rectifier diodes. The factory PSU > puts out about 24v, after the diode drop it's about 23 and change, I > installed a second psu and adjusted the output to 22v or about 21 and > change after the diode. > I installed the router and started monitoring the reported voltage by SNMP > logging, I noticed it started out at 23v and then has been slowly jumping > down and back up to 22v any idea why it wouldn't just keep taking power > from the source with the highest voltage? > > Is this going to be a problem? I was hoping to monitor for main psu > failure by sending an alert below 23v which would tell me if the main PSU > failed but for some reason this isn't working as planned... > >
