改造變壓器成電瓶充電器:－2016韓國代購網 , 韓國代購化妝品 , 韓國代購批發 , 韓國代購教學---韓國代購/追加/寄貨

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Yahoo!奇摩知識+ - 分類問答 - 運動體育 - 發問中

Jul 11th 2013, 17:07

請教達人我有一個19v的變壓器要給7號電瓶充電要接6個1N5401降
壓，接法類似橋式整流器的接法嗎?變壓器的正極要怎麼看(我沒三用
電表)?變壓器的正極是接在圖的上方箭頭處嗎?謝謝

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