There are a lot of ways to skin this cat! But if you are not electronically inclined the Etti boards are the way to!
how to fit cap board
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When I decide to mod my 180A I found these Nichicon PJ series 35V1000uF in my office. They are high frequency low ESR type for switching power supplies, very suitable for ESCs. And, the Nichicon PJ is designed thin/tall for better heat decipation and less footprint area.Comment
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Joe, where do you find those?...does the 50v in front help the 35v if spiked help? Can we just use 50V all the time on all of them?
Why so many? Would adding two on the power cables just take care of it? Is more better?Comment
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Jeff,
I bought a large quantity of the caps. I paid $1.25 each for them. Happy to sell you some at what I paid or trade for some of your couplers/drives or ?????
YES, the 50 VDC rating is actually what is recommended if you are running a 6S set up. I push the ESC's really hard so that is why I am using the additional 4 caps. I bought several of the CC 1717's on sale for a few projects and with these caps the T-180 should do just fine. I also plan to run the Hyper-Cap's T-180 with some 1600KV big Leopards.
I think it is a pain to remove the 35 VDC caps. They still will function just not give an adequate safety factor. The way I add them it is just as easy to add 4 as it is 4, in fact much easier since the leads from the cap can be soldered directly to the OUTPUT voltage wires with no additional wiring.
Yes, you certainly can add the caps anywhere you want. Remember, it is better to have them close as possible, and in my set-up (as well as others shown in this thread) that cannot be any closer.
I have tried many set ups and this, for me, is the cleanest and probably most reliable.
For those without soldering skills I can fabricate the cap board for them so they just need to fit it between the three existing caps and solder the + and - cap leads to the exposed bottom of the T-180 ESC. ( A bit of hot glue secures the new bank of 4 caps to between the stock bank of 3 caps) Very easy...,.I can add a piece of the correct size black shrink wrap also to make it look factory-like professonal.
Since you are running an Eagle Tree, I can provide you also with a few extra thermistors units to measure both cap and FET temps as I do. Best, JoeComment
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Questtek, post #14
Is that right?
My T-180 stock came with 3 x 35v 1000mfd caps but I have installed another 3 the same type anyways...
Maybe the new ones are allready have 3 x 35V 1000 installed on them...
When did you purchase yous?DJI Drone Advanced Pilot
CanadaComment
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VERY INTERESTING! I have 6 of the T-180 ESC's. The three earliest versions, well over 1 year or more old, have 470 mFd BUT the new ones have 1000 mFd! Glad you pointed this out since I only upgraded two of the older ones. Very good observation and thanks again for pointing this out.Comment
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So this is GOOD NEWS for all the guys getting the new ones. Now they come with upgraded caps!!! Maybe there is no need to mod the new ones....
Thanks
Robert
VERY INTERESTING! I have 6 of the T-180 ESC's. The three earliest versions, well over 1 year or more old, have 470 mFd BUT the new ones have 1000 mFd! Glad you pointed this out since I only upgraded two of the older ones. Very good observation and thanks again for pointing this out.DJI Drone Advanced Pilot
CanadaComment
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I checked with Allan who has blown lots of T-180-'s on 6s set ups. They were the newer 1000mFd versions. However they were all 35 VDC and not 50 VDC. It MAY be (and I certainly am not sure of this), but I believe it is the higher voltage spikes that has done the damage. Upgrading to 50 VDC probably would be good. Also, .............50 VDC, 1000mFd would be better than 50 VDC, 470 mFd. We certainly could use lots more testing here to find out whar REALLY is the best.Comment
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Joe I was reading your response but it didn't make sense to me. A 6s setup is a 6s setup and that voltage will never spike up only drop. I think you are thinking of amperage spikes.FE BOATING: Less like a hobby and more like an addiction!Comment
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He provides some pretty good insight on the answer. Best, JoeComment
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I read that post as you requested and did not see anything talking about voltage spikes. There was mention of emf's but not voltage.FE BOATING: Less like a hobby and more like an addiction!Comment
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The ripple current on that link is 2480, I've seen them down to 1200 and possibly 980. Not sure what is OK but I have been checking every electronics store in my area as well as going to digikey, mouser, and others to find a 35v 1000uF axial cap with low ESR and have had no luck as the low ESR is not always stated. I think they are designated differently but cannot make heads or tails of it.
Try these, designed for switching power supplies..
http://search.digikey.com/scripts/Dk...me=493-1911-ND
check the data sheets..There is no replacement for displacement, I guess I just have to Buzz it higher!Comment
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eg 35V for 6S ... 63V for 12S.. allows head room for spikes."
regs
Wayne ...
__________________
Wayne Schutte PhdCSE BaSE BaEE. Australian, and damn proud of it. !Comment
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I'm thinking of getting some of these for higher voltage.
http://www.rubycon.co.jp/en/catalog/...inum/e_ZLH.pdf
the 63v 2200 version.
How will those work?
Steven Vaccaro
Where Racing on a Budget is a Reality!Comment
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I my opinion it will work perfect....
I'm thinking of getting some of these for higher voltage.
http://www.rubycon.co.jp/en/catalog/...inum/e_ZLH.pdf
the 63v 2200 version.
How will those work?
DJI Drone Advanced Pilot
CanadaComment
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