[問題] MP1584 Converter問題
最近在研究一些車用電子的東西
用到這顆MP1584來做12v~16v轉5v,供電給MCU使用
電路是照Datasheet上面給的接線圖去做http://goo.gl/ZMS5ik
一開始使用電源供應器供應12v很正常穩定輸出5.00v~5.01v
但只要一接上車子,因為車子發電機回充經過整流器出來大約是14v
有些車甚至更高,轉換出來的電壓卻很不穩定5.3v~8v一直跳動
搞了好幾天了,找不出問題在哪裡,還不小心把一顆MP1584燒了-..-
只好上來請有經驗的版友幫助><,感謝!!
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 59.127.35.245
※ 文章網址: https://www.ptt.cc/bbs/Electronics/M.1441448544.A.49D.html
推
09/05 20:44, , 1F
09/05 20:44, 1F
加過了,沒有效果...
推
09/05 22:12, , 2F
09/05 22:12, 2F
聽不太懂您的意思耶
※ 編輯: aoog5858 (59.127.35.245), 09/05/2015 22:20:52
推
09/06 02:19, , 3F
09/06 02:19, 3F
推
09/06 09:59, , 4F
09/06 09:59, 4F
我再加上濾波電路試試看
→
09/06 11:46, , 5F
09/06 11:46, 5F
→
09/06 11:47, , 6F
09/06 11:47, 6F
→
09/06 11:48, , 7F
09/06 11:48, 7F
剛去查一下電路,我的系統轉5V後MCU+一些外接模組吃電應該大概1A
不知道這顆能不能用,好像只有0.5A,會再去買來試試看! 感謝提供建議!
推
09/06 13:18, , 8F
09/06 13:18, 8F
※ 編輯: aoog5858 (59.127.35.245), 09/06/2015 14:58:18
→
09/06 16:56, , 9F
09/06 16:56, 9F
→
09/06 16:57, , 10F
09/06 16:57, 10F
→
09/06 16:57, , 11F
09/06 16:57, 11F
→
09/06 17:09, , 12F
09/06 17:09, 12F
→
09/06 17:10, , 13F
09/06 17:10, 13F
是說拿別人的兜上去也行,不過之後會lay到跟我的系統版子同一塊版子上說
※ 編輯: aoog5858 (59.127.35.245), 09/06/2015 23:59:28
→
09/09 00:04, , 14F
09/09 00:04, 14F
→
09/09 00:05, , 15F
09/09 00:05, 15F
→
09/09 00:06, , 16F
09/09 00:06, 16F
→
09/09 00:07, , 17F
09/09 00:07, 17F
→
09/09 00:08, , 18F
09/09 00:08, 18F
推
09/12 23:46, , 19F
09/12 23:46, 19F
→
09/12 23:48, , 20F
09/12 23:48, 20F
→
09/12 23:50, , 21F
09/12 23:50, 21F
推
09/12 23:52, , 22F
09/12 23:52, 22F
→
09/12 23:53, , 23F
09/12 23:53, 23F
→
09/12 23:54, , 24F
09/12 23:54, 24F
推
09/16 17:52, , 25F
09/16 17:52, 25F
→
09/16 17:52, , 26F
09/16 17:52, 26F
→
09/16 17:52, , 27F
09/16 17:52, 27F
→
09/16 22:46, , 28F
09/16 22:46, 28F
→
09/16 22:47, , 29F
09/16 22:47, 29F
→
09/16 22:48, , 30F
09/16 22:48, 30F