Quote:
Originally Posted by sheepdog 44
I don't think this video of his has been linked to. It shows a balance circuit for the capacitors in his SOLYN1 project.
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I have seen this video, but my questions remain:
1. Can the LEDs be replaced with any diode with a similar voltage drop?
2. Is the goal to have the same voltage drop for the diodes as the capacitors are to be trimmed down to?
3. Can the diode be removed if an LED with sufficient voltage drop is used (possibly green or blue)?
4. Can this balance circuit be used on battery packs such as Li-ion or LiPoFe4, or even NiMh?
EDIT: It seems the answer to #2 is yes, but I'm not sure. Based on this table, the red LED has a 1.7v minimum operating voltage, and a diode has a 0.7v drop. Added, this is 2.4v, or the voltage that each of the 6 capacitors should be trimmed to.
EDIT2: I don't see any reason why this wouldn't work to balance any type of cell in a series circuit, assuming the sum of the forward voltage drop for the diodes equals the max rated cell voltage.
