Coffee Can Power Bank

2016/12/27 中文組裝說明連結路徑:
http://ken77kuo.pixnet.net/blog/post/47600380
http://ken77kuo.pixnet.net/blog/post/47730595
http://ken77kuo.pixnet.net/blog/post/49240060
http://ken77kuo.pixnet.net/blog/post/49374526
和相關電路圖pdf檔

2016/10/27 Improve power conversion efficiency

在賣場購物時有一樣有趣物品吸引女兒目光,這個是外型如汽水罐的行動電源,很酷!有趣!
她心裡很喜歡但沒有向我要求買一個,這時我腦中突然閃出念頭自己做一個她會非常高興.
The things in the mall caught my daughter's attention. Wow! The Soda Can Power Banks are very cool! I knew she very liked it, but she did