INNOSWITCH regulation variance

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I am trying to find a work arround on the INNOSWITCH problem when using it as a battery charger. I do not find the problem on all the units. I find it on about 25% of the units.

If I power the INNOSWITCH up with no battery connected the INNOSWITCH will regulate to the correct set voltage (13.8). If I power up the INNOSWITCH with a battery connected the INNOSWITCH will only regulate to 0.6 - 0.8V lower than the set voltage (13V - 13.2V).

Has anyone found a work arround to this problem?


Hi ,


Please provide the schematic and transformer design files and the exact line, load test conditions.