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ESC blown!
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«
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May 15, 2017, 07:32:25 PM »
Aravind298
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ESC blown!
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Hi everyone! I just blew my ESC by just connecting the battery to it in the reverse order.
The ESC was 'Emax 30A BLheli with BEC' .
I opened the case and came to know that the reverse polarity protection diode(honestly I don't what that is) had fried.No injuries
on the main ICs were observed.
The yellow colored IC was blown.
Now,my question is , will it help if I change that yellow IC and it's neighbor? If so,please mention it's name so that I could buy it.
Thanks for helping
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Reply #1 on:
May 15, 2017, 07:40:49 PM »
Aravind298
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Re: ESC blown!
This is the image.
Re: ESC blown!
IMG_20170515_192232__1494857152_122.174.58.171.jpg
(26.76 KB, 400x300 - viewed 403 times.)
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Reply #2 on:
May 15, 2017, 07:47:37 PM »
Swapnil
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Re: ESC blown!
I'd recommend buying another one. Repairing an ESC is risky business.
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Reply #3 on:
May 15, 2017, 07:49:26 PM »
Aravind298
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Re: ESC blown!
Quote from: Swapnil on May 15, 2017, 07:47:37 PM
I'd recommend buying another one. Repairing an ESC is risky business.
Just throw that away?? That would be a lot of wastage of resources man! I can solder pretty much decently.
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Reply #4 on:
May 15, 2017, 10:02:23 PM »
A_Qaiser
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Re: ESC blown!
If only the protection diode is blown, then you can short circuit it. THE ESC will work fine.
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Reply #5 on:
May 15, 2017, 10:19:42 PM »
kiran rc
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Re: ESC blown!
That's not a diode, it a 'tantalum capacitor' however,the value cannot be known. In most cases regulator or other IC might have been burnt.
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Reply #6 on:
May 15, 2017, 10:22:43 PM »
kiran rc
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Re: ESC blown!
Can you post a pic of the other side of that? I suspect a burnt mosfet!
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Reply #7 on:
May 15, 2017, 10:23:14 PM »
Aravind298
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Re: ESC blown!
Quote from: A_Qaiser on May 15, 2017, 10:02:23 PM
If only the protection diode is blown, then you can short circuit it. THE ESC will work fine.
You mean to say,just unsolder it off the board and put a wire on it?You might also see it's neighbor suffer the same fate.
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Reply #8 on:
May 15, 2017, 10:23:44 PM »
Aravind298
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Re: ESC blown!
Quote from: kiran rc on May 15, 2017, 10:22:43 PM
Can you post a pic of the other side of that? I suspect a burnt mosfet!
The other side is perfect.I would show you if you want.
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Reply #9 on:
May 15, 2017, 10:36:17 PM »
kiran rc
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Re: ESC blown!
Ok. Not a problem. You may test it again if capacitor is the only component damaged.It can work without the cap, you can add it later if the esc is working.
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Reply #10 on:
May 15, 2017, 10:51:07 PM »
kiran rc
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Re: ESC blown!
Quote
You mean to say,just unsolder it off the board and put a wire on it?You might also see it's neighbor suffer the same fate.
Just unsolder. Don't put a wire junction to it! The main IC will blow. The two ends of the component are of different polarity.
Can't identify any other component burnt beside that one. Maybe a higher resolution pic will help.
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Reply #11 on:
May 15, 2017, 11:38:03 PM »
Aravind298
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Re: ESC blown!
Quote from: kiran rc on May 15, 2017, 10:51:07 PM
Quote
You mean to say,just unsolder it off the board and put a wire on it?You might also see it's neighbor suffer the same fate.
Just unsolder. Don't put a wire junction to it! The main IC will blow. The two ends of the component are of different polarity.
Can't identify any other component burnt beside that one. Maybe a higher resolution pic will help.
Hi,I really want to put up a better picture,but the website just doesn't allow me.
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Reply #12 on:
May 17, 2017, 08:19:22 AM »
kartp3112
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Re: ESC blown!
You can desolder everything (Fets, IC, Caps, Diodes) and buy a new one of the same make.
In case you blow a fet on the new one, just replace it with a fet on the old one (that way you wouldnt be destroying resources).
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Reply #13 on:
May 17, 2017, 09:17:01 AM »
Aravind298
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Re: ESC blown!
Quote from: kartp3112 on May 17, 2017, 08:19:22 AM
You can desolder everything (Fets, IC, Caps, Diodes) and buy a new one of the same make.
In case you blow a fet on the new one, just replace it with a fet on the old one (that way you wouldnt be destroying resources).
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Reply #14 on:
May 17, 2017, 10:44:27 AM »
rastsaurabh
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Re: ESC blown!
Hello Aravind,
The pic shows that PCB tracks also might have blown..... As all are suggesting buy a new one. Its not that you cannot repair ESC but the problem is reverse polarity is a killing mistake & you cannot ascertain what all can go wrong.
On the other side I had a faulty Motor because of which 2 of my ESCs have MOSFETs blown. I ordered CED85A3/CEU85A3 Mosfet but they were of bad quality ... the ESCs worked but on full throttle one Mosfet blew off.
Question : where to get CED85A3/CEU85A3 mosfets?
regds
Saurabh 8826298725
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