Augusto Yipmantin wrote: > Excuse me please for use [OT] instead [EE]. > And thank you for your question. > This solar panel is a little bit expensive, yes! You are right, but it > is what I receive to do the job. > Maybe a $1.50 inductor will be part of the solution for my project, but > in my country is not possible to get the adequate inductors as new > parts. What country are you in? Have you tried CoilCraft? They are very good about samples, at least here in the US. They are also well priced for decent quantity production, and their stuff is well made. My only gripe with them is that small quantities are quite expensive, making it difficult for small volume producers. However my sourcing folks tell me there are Asian knockoffs of many of the more popular CoilCraft products that compete well for the smaller quantity runs. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist