A lot of switching supplies have a minimum load requirement. When it is
not met, the supply clicks. So, I think all is well under normal
operation.

Harold


-- 
FCC Rules updated daily at http://www.hallikainen.com . Advertising
opportunities available!
plies

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist