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Altera_Forum
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17 years ago

Burned element on a turned off DE2 Board

Hello all I have a Cyclone II DE2 board and I'm using a 9V / 2A power supply. I have been using this power supply for some time now and all was working fine. When I finished working I turned of...
Altera_Forum's avatar
Altera_Forum
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17 years ago

Hello

Highlighted element is a inductor in DC-DC converter. It's hard to damage such element and I think that smoke became from DC-DC regulator( on the right side of inductor) or other components like diodes.In case of inductor damage only failure mode is breaking the copper wire. Both elements are repleceable.

Regarding component description is it coil with inductance equal 47uH (in a case of DE2 board). Do you use DE2 or DE2-70?.

Probable reason of these damage? It's hard to say. Maybe the quality of component was poor.