昨天接到任務,要把一台車用的吸塵器改造成家用的,昨天已經先拆開那台吸塵器測試了一下電流值,1安培多,啟動電流2安培.小宗宗算了一下,用傳統的變壓器變壓似乎體積太大,改用交換式的應該比較妥當,小宗宗今天就去了一趟光華,買了一個12伏特3安培的交換式電源供應器,他原來是給筆記電腦用的,反正電壓電流正確就沒問題啦~小宗宗還順便買了一些有的沒的補一下家裡的零件庫^^
小宗宗還仔細的逛了一下光華商場,看看有啥新玩意,小宗宗有看到傳說中的雷射光學滑鼠,表哥說要三千多,經過小宗宗訪價發現只要NT$22×0元,還有一款更貴的藍芽滑鼠要NT$27×0元.
晚上小宗宗還跑去新開通得捷運新站-小碧潭,嗯~這地方其實並不是很好玩的說,捷運站周圍一共有東西北三個廣場,但是整體來說不太大,而且周圍沒啥東西可以逛,整個廣場只有捷運站出口處有一家咖啡店在賣咖啡,室外的桌椅也並不多,所以說並不是很好玩的地方.今天知道的人還不算多,所以人還好,如果遇到很多人不知道會如何,搞不好大家人擠人站在廣場上面XD
I went to buy some items this afternoon. I want to modify a vacuum cleaner. It’s for in car use and it can only plug the 12V cigar-lighter. I want to make it plug the socket at home. I consider using the transformer to change the voltage. But the 3 amps transformer is very big and heavy, it’s not easy to carry all around the house. I decided to use the switching power supply which also uses for the PC. It’s much smaller than the transformer and more efficient. After I tested. It worked fine. Mission completed. ^^
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