Whats This?:)

Graham Lawrie · Post by **Graham Lawrie** » Tue Jul 28, 2015 7:43 pm

Tony what is the part with XK?

Damaged in transit, new ones on the way, will i bin these, hot glue them or what:)

Post by **pvolcko** » Wed Jul 29, 2015 3:09 pm

Looks like maybe a surface mount inductor.

Graham Lawrie · Post by **Graham Lawrie** » Wed Jul 29, 2015 7:38 pm

I got two replacements today. Sent in an envelope with no padding and they're fine?

Post by **pvolcko** » Thu Jul 30, 2015 1:07 am

Should be pretty resilient. The damage probably was not originally caused by transit. May have had too much heat applied while soldering or just a straight up defect in the plastic/potting used around the coil.

Graham Lawrie · Post by **Graham Lawrie** » Thu Jul 30, 2015 5:05 am

That sounds about right

Tony · Post by **Tony** » Thu Jul 30, 2015 5:43 am

Sorry Graham, yes they are inductors

Lee · Post by **Lee** » Thu Jul 30, 2015 5:46 pm

I have been trying these PDBs and there is an issue.
The 12V output for the VTX doesn't supply enough voltage.
Under load it drops to below 5V, so cameras don't work.
I have found a lot of people with this same issue.
I hope yours work properly Graham.

KevG · Post by **KevG** » Thu Jul 30, 2015 7:06 pm

I have seen that to Lee, luckily I have not had a drop out, think cos I use a 5v camera,

Graham Lawrie · Post by **Graham Lawrie** » Thu Jul 30, 2015 7:57 pm

Interesting:) i will test before i fit it:)

Lee · Post by **Lee** » Thu Jul 30, 2015 8:03 pm

If you are running 3S, then its fine. I have used the LED pins, and they work.
But for me, I want to run 4S, and that would throw 16V into my camera

Graham Lawrie · Post by **Graham Lawrie** » Thu Jul 30, 2015 8:08 pm

You dont want that:) there must be a way to reduce the voltage to 12V? Tony?

KevG · Post by **KevG** » Thu Jul 30, 2015 10:05 pm

I run my cam from my vtx not the PDB, and running the vtx from the 12v pins, also running the led pins and the 5v for the naze32, not had an issue YET!

Tony · Post by **Tony** » Fri Jul 31, 2015 7:47 am

Simple enough to drop 16 volt to 12 volts with the same regulator I showed Derek for his leds... I did mention a while ago about these pdbs with there own regulators on... Not all are good, the one I looked at had no decoupling capacitors, and the tracks were far too thin for the currents that would be going through them...

Lee · Post by **Lee** » Fri Jul 31, 2015 4:04 pm

KevG wrote:I run my cam from my vtx not the PDB, and running the vtx from the 12v pins, also running the led pins and the 5v for the naze32, not had an issue YET!

I run my cam from the VTX too Kev.
Problem is, the VTX output is the same as its input. So 3S is fine, 4S is Bad

Of course I could run a separate 12V reg, but that defeats the object of making things lighter, and simpler

Graham Lawrie · Post by **Graham Lawrie** » Fri Jul 31, 2015 7:08 pm

Tony wrote:Simple enough to drop 16 volt to 12 volts with the same regulator I showed Derek for his leds... I did mention a while ago about these pdbs with there own regulators on... Not all are good, the one I looked at had no decoupling capacitors, and the tracks were far too thin for the currents that would be going through them...

Have you had a look at this one Tony? Your thoughts?

Post by **danhampson** » Fri Jul 31, 2015 8:00 pm

I hate you guys some times. Im about to start a new build (more of a frame swap really) and the frame ive ordered comes with one of these

link http://miniquadfpv.com/product/thug-pdb/

It accepts 2 pololu regutators of your choice and is also the PDB, for my appication im going to run a 5v http://skpang.co.uk/catalog/pololu-5v-1 ... -1413.html and a 12v http://www.hobbytronics.co.uk/s10v2f12-12v-regulator

Graham Lawrie · Post by **Graham Lawrie** » Fri Jul 31, 2015 8:11 pm

+1 Dan:( I have 2 good and 2 i would not use, until Tony checks them at our RC-Hangout Scottish Meet:) I had the intention of putting them in all my quads............now i am not so sure:)

KevG · Post by **KevG** » Fri Jul 31, 2015 9:19 pm

Mines working perfect on 4s Graham and has seen some abuse in the last few weeks,

Graham Lawrie · Post by **Graham Lawrie** » Fri Jul 31, 2015 9:25 pm

Cool Kev:) I am going to use them like i said on all of mine to tidy the wires up and save space:)

Tony · Post by **Tony** » Sat Aug 01, 2015 4:56 am

Sorry guys for not answering sooner, we are getting our new motorhome today and been really busy sorting the old one out... New thread coming soon..

Graham, can't see the full pcb on that board, so if you send a link I'll look at it...

Dan, send a photo of the other side too or a link..

RC-Hangout

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