FilterGuy
Solar Engineering Consultant - EG4 and Consumers
Folks,
I have bought into the idea that it is a good idea to use signals from your BMS to turn loads and chargers on and off (as apposed to using relays or FETs to interrupt the current.) For stationary systems where the only load is the inverter, this turns out to be relatively easy to do. However, for mobile systems where you have 12V DC loads, it gets a bit more complicated.
For a 12 Volt system, you can usually use a Victron battery protect. (Yes.... this is using FETS, but it is typically much smaller current and you don't have large banks of capacitors like you do on the inverter).
For a 24 Volt system with a 12Volt buck converter, the ideal situation would be to use the BMS Discharge Enable signal from a Chargery or ElectroDaucus to turn the buck converter on and off. Do any of you have a recommendation for such a beast? I did a quick look and a lot of them just have DC-in and DC-out. No controls.
I have bought into the idea that it is a good idea to use signals from your BMS to turn loads and chargers on and off (as apposed to using relays or FETs to interrupt the current.) For stationary systems where the only load is the inverter, this turns out to be relatively easy to do. However, for mobile systems where you have 12V DC loads, it gets a bit more complicated.
For a 12 Volt system, you can usually use a Victron battery protect. (Yes.... this is using FETS, but it is typically much smaller current and you don't have large banks of capacitors like you do on the inverter).
For a 24 Volt system with a 12Volt buck converter, the ideal situation would be to use the BMS Discharge Enable signal from a Chargery or ElectroDaucus to turn the buck converter on and off. Do any of you have a recommendation for such a beast? I did a quick look and a lot of them just have DC-in and DC-out. No controls.