Blown 3.3v regulator *fixed*

[Biffa]

So as per the title the bloody reg has blown, anyone out there with good eyes and a steady hand fancy fixing it for me

[Oakie]

If no one else can help i';ll do it. If someone wants to do it I can send you a reg with some caps for buffer rail.

There will be neater workers than I

[nub]

geez a shout if you haven';t got someone to sort it out for you already

[guest2350]

I could do it but wouldn';t like to be responsible if it doesn';t go to plan ::)
I can send you out a reg if you like?

[Biffa]

Found a work around

You can remove the duff regulator and power the 3.3v stuff through the I2C port

[Oakie]

That you can. you have i2c on multi-rotor? or using 3.3 v bec?

[Biffa]

That you can. you have i2c on multi-rotor? or using 3.3 v bec?

It';s on my Bixler. I will be buying a 3.3v regulator just not soldering it to the board as I can find a 3.3v uBEC. I shall then just tap off a 5v source.

[Oakie]

nice! if you have an old i2c to serial board that would supply enough for the board sensors...

[Biffa]

So as a work around which suited my both my eyes and my soldering skills I have done this:



You have to remove the blown reg first in order to stop that passing 5v, then just a simple wiring bodge from any 5v source to the new (rather large) regulator and then that feeds the 3.3v stuff via the I2C port.

Jobs a good ';un

[Oakie]

good job

[JT]

 I love the smell of a bodge in the morning.....

[barneyg]

I love the smell of a bodge in the morning.....

I seriously misread that

[Kitetraveller]

Hey Oakie,
My reg has blown, so getting zero through it.

I fancy having a go at replacing it myself; what price are the regs please?

Cheers
Andy
Norfolk

If no one else can help i';ll do it. If someone wants to do it I can send you a reg with some caps for buffer rail.

There will be neater workers than I

[Oakie]

PM your address i';ll try get them in post today if i can first class

Edit
Envolope stamped and awaiting address.

[Kitetraveller]

PM sent!

Please let me know costs.

PM your address i';ll try get them in post today if i can first class

Edit
Envolope stamped and awaiting address.

[Oakie]

FOC

If you want to bung the forum a donation that fine.

Off to post it know


Paul

[Oakie]

Done, first class, I would hope you have them tomorrow Andy, 2 in the bag just in case 


Paul

[kogashuko]

Was it hard to solder on?

I thought I had this issue after I landed my quad in a drink about a month ago. Turned out I was lucky and there was just a big spot of salt corrosion on two of the legs for the reg and scrubbing it with vinegar fixed the problem. I have no illusions to this happening eventually though. This is why I will be picking up a APM 2.7 from HK which supposedly has a fix for the issue.

[Biffa]

It only blows when plugging and unplugging stuff while the board is powered, if you can discipline yourself not to do that you should be OK

[Kitetraveller]

I did it!!
I am usually the one with all the gear and no idea, and I managed to remove the blown one and solder in the replacement on my own!
It works, and my quad is flying again....it would not win any ';good soldering'; awards, but it does the job...not pretty but working....a bit like me really....

BIG THANKS TO OAKIE FOR THE FOC BITS!!!  Donation made.

Cheers
Andy

Done, first class, I would hope you have them tomorrow Andy, 2 in the bag just in case 


Paul