[問題] LED SMD 5050 燈條加裝二極體與電容
各位新年好!我想請教一下
因為我想要自己重新裝一個長約240cm的12V LED燈條
該規格為每米14.4W,每米60個LED
半年前裝過一次,當初賣家說2.4米=34.56W
34.56(W) / 12(V) = 2.88(A)
就直接搭一個12V, 3A的變壓器給我
最初用著用著也沒事
後來靠近電源那邊就慢慢黃掉了,然後接著變壓器掛掉(兩次)
請問我是不是該裝電容與二極體來保護線路呢?
之前同時買的24V 燈條(30cm)
線路上裝了三個電子零件,分別是:
470uF/25V電容
1/4W 240歐姆的電阻
1N4004二極體
到目前還頭好壯壯,但是電壓換成12V,長度變成240cm
我就不會換算了....年假看了一整個下午的文章,感覺非常沮喪
跪求幫忙!
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