I think I am just confused with this diode issue. I would appreciate if somebody can just clarify the topic about bypass diodes and blocking diodes. I am not an electrician or a designer, but I'd like to understand. Thank you.

Comments

Diodes in a module perform two different functions- depending on where they are installed.

Diodes use their internal field to allow electric current to flow one way in a circuit and prevent it from flowing back.

Bypass diodes are installed in parallel with modules, they and they perform a bypass function allowing current to pass around a shaded area of a module.

Blocking diodes are installed in series with a string of modules, and they perform a blocking function, preventing backflow down the module string.

Please also read the two similar entries that are linked on the right hand side of this page. 

Submitted
13 years 7 months ago
Asked by
Levent Bas