差啲着火！！試圖傳短路，電線過熱發火光。。。

Cplcwb 發表於 2014-12-20 13:41
Elton gor ,Benny 呀! 你又來呀!
Agree too,due to my 5V Vbec supply from ESC only for RX & CC3D!
...

hello Benny gor! 隔離台收左台所以論壇只得一個了呢! 有D可惜。If it is not about the short circuit, bad design of the bec could be root cause.  bec using switching to step up or down, but if switching circuit is not design properly, with inductance, high back emf voltage  (sparking) could be generated and even damaging nearby components.

isaac006 發表於 2014-12-20 14:26
我諗我可能知道原因，因為我一路都冇試過裝完啲電路板上qav250後再測試有冇 short，有可能係啲焊口位岩岩 ...

每塊電路板包縮膠穩陣D , 輕炸機都唔怕有野飛左上去攪到斷路 .....

elton2xxx 發表於 2014-12-22 21:34
hello Benny gor! 隔離台收左台所以論壇只得一個了呢! 有D可惜。If it is not about the short circuit,  ...

Elton gor!真的太可惜......

原來真係因為碳纖通電造成短路, 用碳纖機架既師兄們要小心

(Go to 3:45)

isaac006 發表於 2015-1-8 16:46
原來真係因為碳纖通電造成短路, 用碳纖機架既師兄們要小心

(Go to 3:45)

所以我宜家係D電路板下面都會用電線膠布黏好.

新手David 發表於 2015-1-8 18:59
所以我宜家係D電路板下面都會用電線膠布黏好.

我衣加係咁。。。