Limit current TO battery with no restriction from the battery, I guess I'm trying in reinvent the wheel because such beasts already exist, but I haven't found anything within budget for 48v.
On Tue, Sep 7, 2021, 6:58 PM Chuck McCown <ch...@go-mtc.com> wrote: > Which way would take priorit? Yes you can use a linear regulator in a > current limiting configuration. > > Sent from my iPhone > > On Sep 7, 2021, at 5:00 PM, TJ Trout <t...@voltbb.com> wrote: > > > 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 >>> >>
-- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
