Is there some combo of a diode and another component I could use to allow full current one way and limited current to 1am the other way?
On Tue, Sep 7, 2021, 3:56 PM TJ Trout <t...@voltbb.com> wrote: > This is lithium, the lvd is integrated to the pack. I'm going to attempt > to use a 360w meanwell charger on a lithium charge profile paralleled with > the battery and the load, I wasn't sure if the load would stay offline > until the batteries get to the loads minimum voltage to run or what the > behavior would be because I won't be limiting charge current to dedicate > load current like a 'real' system would have. Trying to build a system on a > budget for a friend, this whole system will cost less than a 48v DC ups or > 48v rectifier with ups function. > > On Tue, Sep 7, 2021, 3:44 PM Chuck McCown via AF <af@af.afmug.com> wrote: > >> Most rectifiers for “float “ service have current limiting. And yes the >> batteries will present a heavy load and it will take some time for the >> voltage to come up. If the lvd reconnects the batts the voltage could drop >> so much they will disconnect again and flop for a while. You need a >> rectifier that can pull the live load plus a heavy charging current. I >> would go twice my load or more for this reason. BTW not a fan of lvd. Do >> you really want to totally kill your customers in the unlikely event the >> bats go that low? I quit using them 20 years ago and have never regretted >> that decision. >> >> Sent from my iPhone >> >> > On Sep 7, 2021, at 4:29 PM, TJ Trout <t...@voltbb.com> wrote: >> > >> > >> > What happens when you parallel your supply, load and batteries without >> using a 'dc ups' which provides lvd + charge current limit? >> > >> > I'm using batteries with a Integrated lvd so I am just concerned with >> the behavior after a long outage where the load and battery will be >> fighting for the supply current? >> > >> > Can't find any low cost options @ 48v to limit charge current (DC ups) >> Maybe I can use a diode one way and a current limiting device the other way >> to the battery? >> > -- >> > AF mailing list >> > AF@af.afmug.com >> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >
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