Blown fuse detection parallel battery bank | Electronics Forum
Blown fuse detection parallel battery bank. Thread starter Mrusten; voltage ranging from 8,2v to 7,25v in my case my goal is to use 60% of the avalible energy in the
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Assuming you can tolerate a small current flow (say 1mA) across a blown fuse, I would simply place a sensitive bi-direction optocoupler and resistor in parallel with each fuse. The optocoupler LED will "light" if there is a
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Now that a battery charger requirement has been added to the question D1 and D2 have to be removed. simulate this circuit. Figure 2. Advanced blown fuse detection. How it
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Blown fuse detection parallel battery bank
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4 Frequently Asked Questions about “New energy battery cabinet fuse detection”
What happens if battery B12 blows fuse 4?
If say battery B12 blows fuse 4 then B12 voltage rises under sudden no load. Comparator 2 in- rises above its in+ and comparator output goes LOW and lights LED D2. WINDOW COMPARATOR MONITORING OF BLOWN BALANCING FUSE. Here is a conceptual window comparator system that lights an LED if a balance fuse is high or low.
Does a blown fuse prevent balancing a cell?
As shown a blown fuse would prevent balancing that cell BUT the 16S stack would be connected without fuses and still provide power. Unless power is drawn via a fuse per cell it does not protect that cell. Perhaps draw an eg 4S2P stack and show what happens when you blow one fuse and then draw power.
Does a blown fuse protect a 16S stack?
However, the load is taken only at the top and bottom of a 16s stack. As shown a blown fuse would prevent balancing that cell BUT the 16S stack would be connected without fuses and still provide power. Unless power is drawn via a fuse per cell it does not protect that cell.
How can I tell if a fuse is blown?
Unless power is drawn via a fuse per cell it does not protect that cell. Perhaps draw an eg 4S2P stack and show what happens when you blow one fuse and then draw power. If you blow a fuse where current WOULD have flowed then I'd expect a series LED + resistor acxross the fuse would be enough to show where the blown fuse was.