Anti Interference Board VS Low ESR Capacitors // Real Review and Testing
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- เผยแพร่เมื่อ 15 ก.ย. 2024
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The Playlist of LOW ESR SHOOTOUTS
• LOW ESR Capacitors
Anti-Interference Board
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470uF What I used in this Test
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1000uF what I will be testing soon
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The HEX driver I recommended which i bought 2 sets of (Must have if your into building)
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@1:10 the connection.... thats a joke isn't it?!? I am a student in electrical engineering and this idea hurts me in my head!
Guys thats VERY bad testing! your goal with the Caps is to minimize Tre Resistance, right, but you defeat the whole point when you adding this piss-poor wires to the board! The ceramic caps are way better than LOW-ESR Elkos, thats simply a fact and can be proven by the data sheets.
You introduced a load of inductance (Complex resistance/ Impendance) and resistance which renders this test to complete bullshit!
I dont get why most people in the comments are believe in this. Go check out EEVBlog on decoupling caps, we do kind of exactly the same here. you dont want huge capacity, 100µF is more than enough when installed right and use right caps.
I think you need to shorten the cables to the caps/anti board. If you look at any pcb, the decoupling cap is very close to the IC is is intended for. Would be nice to make a side by side test with the same setup but with short and long cables and see if there is any significant diff.
Yes too long and tiny cables I agree. Love the tests any way :)
Yes, long cables catch anything like an antenna, and with so much close interference, there should be some difference for good with very short cables. -oh, 4 years later.. :/
This is good stuff. Great information. Thanks. On the shootout what I would love to see is LowESR cap VS LowESR cap + LC Filter. Also a comparison between 470uF vs 1000uF on the battery leads.
Man I loved the new layout really clean and I'm love with those tests keep doing it and continue to be different from everyone
Please do testing with same low ESR capacitor soldered directly on battery pads vs same capacitor soldered with +/- 3cm long 20AWG wires.
Makes sense to me that one big fat cap is better than multiple small ones. Solid testing.
Not exactly. The total capacitor bank capacity and connection quality (not too large wire length and not too thin wires, soldering quality etc.) matter more. But the capacitor alone not always is the savior. Especially if main noise source in video and gyro is bad 5V BEC on flight controller board.Then you may need to add low ESR capacitor on 5V rail or even castrate 5V BEC chip out of FC and use external 5V BEC instead. Also mind the distance from naked VTX board circuit side from video circuitry. VTX if is located too near from FC video circuitry, may noise your eyes out.
Awesome work, dude! Really nice! 😊
When you can, try to test the 1000uF capacitors too. 😉
Hey man, just want to say thanks, for the work your doing, if you haddnt gotten into it i would have had to! so thanks for saving me all that time and effort!
Dude you seriously make some of the best testing videos I have seen about this stuff. Really well done and also thank you very much. If only I had an oscilloscope xD
Great content Mesh but it's which not witch lol!!!
You may also find cleaning up your wiring has an even greater effect. Some of the transients you are measuring there are from radiated emissions, as opposed to conducted. You may be surprised how much visible video noise is from radiated emissions, and how much clean, proper wiring helps. I understand you are shooting for worst case, but more often than not, clean, proper wire routing and proper grounding will completely eliminate the need for additional capacitance. I do agree with the Flycolor Raptors being great ESC's. Use twisted pairs with ground for all your small signal wires (ESC signal, video), and ensure you do not create ground loops.
Thanks for your hard work in testing! This is awesome and very helpful for less try and error :o)
Shorten the cables. How can this board help if you hawe so long and thin cables?
Sam your doing a great job man! Really really awsome! Much respect👏👐
Nice editing, the image looks beautiful as well!
Definitely learn more and valuable information here, lol love your channel! I wish I could help you more... I don't even have a flying Qwad at the moment... In the process of building a Remix but the fc got bricked somehow and I can't get it into dfu mode.... Keep up the great content!
Thanks for the test I was always curious about that board compared to a cap
Great video
Capacitor should be soldered as close to the circuit as possible, otherwise it's useless. The power cables should be as short as possible. These two long, thin wires works like inductors.
Hi there, first of all i love your videos, they are fun and informative... Keep those videos coming please...
I want to know more about the camera and the setup you use to record your youtube videos as you record these build videos...
Can you please make a video about your setup?
Best Regards
Very
useful video! Great job!
It is absolutely pointless to hook up a capacitor or a capacitor array with such long and thin wires....
Solder 1-2 ceramic caps in 1 to 10μF range on the vtx pcb power pins, on the sbec output pins and on the camera power pins if needed.
Not dangling on wires.
Hey Drone mesh, I use the Hobby Wing 40 amp 4in1 combo they provide a 470 uf cap, do you recommend using a 1000 uf cap to for added protection from voltage spikes..
Check out those 5.1v 0.1F(100,000uF) SMD(surface mount) supercapacitors. Just use 5 in series across the battery for awesome power smoothing.
Change Agent Email me link
Drone Mesh just look for 5.5v supercapacitor on AliExpress, there's plenty of them
Super caps usually have very high ESR, which we don't want.
bobbfwed Yes thats why I included two links. The second link is the low ESR.
I don't think TH-cam is displaying any of your links. But wouldn't using capacitors in series increase the ESR too?
Thank you for all the info! But why the distracting graphics?
nice info
May I suggest a test? Lots of people are putting caps at the XT60 instead of at the ESC because it’s easier to fit in tight builds. Could you see how much less effective the cap is when located at the XT60? What if the capacitance is doubled?
What gps are you using? Great information by the way!!!
Do you think that the dalrc engine is compatible with the hobbywing xrotor fc? Because it has the same plug
highly unlikely out of the box but you can simply switch around the wires on one side to make it compatible
You did well! But a bid to fast speak for me because English is not my mother language🙄 but i like this test you did make very match! I say thank you! Hello frome North Germany
Thanks from Hungary... I will talk slower next time I see I have alot of EU followers I'll take it into consideration.
Appreciate the feed back.
Drone Mesh Brazilian followers too. 😊
Nice, are you hungarian ? I'm from Hungary too, we should meet sometime.
I am sorry for the newbie question :) Can I use this parallel capacitor plate on any power board? Where did you solder it exactly? I have video noise like black stripes only when I use the throttle. The more I give gas the more they show up , its very annoying! Thank you!
Hey DroneMesh. My friend is placing a diode with the capacitor to remove the negative effect of CAP discharging. ALSO! One thing that came to my mind is placing capacitor on BEC 5V line to camera, even after the main CAP on VBAT. Would it make sense or any difference, what do you think?
Diatone has added a cap to the camera bec to address video noise and appears to have fixed their problem, and flying friends have found it works sometimes with video problems. Just depends on where your noise is coming from. Can’t hurt to try:-)
Happy flying!
Chemistt adding a diode to a capacitor would make this capacitor totally useless, the capacitor is smoothing the voltage by constantly charging on a voltage spike and discharging on a voltage drop
Danila Kilin, sadly I have no knowledge on what diode does and feel overwhlemed by all the other stuff right now so I am totally fine with knowing that CAP is the best option for recovering from nosiy setup. Althought your argument makes sense, I remember him mentioning that he added diode to CAP, to either stop cap discharging into the PDB or not to discharge into ESC. Thats all I can tell. I never tried that nor I want to try it.
Cool video
QUADBOT FPV Thanks buddy
Is that a roll of shrink tube like tape? how do i get some?
So I see a major problem with this capacitor test. The greater the distance from the source of the noise ( the ESCs ) and the capacitor / filter the less effect it will have.
I have experienced this effect first hand with my own setup:
TBS Unify Pro Race
Emax 2306 2400kv with 4 individual Bullet 30's (literally the noisiest setup ever, I know😅)
I had horrific lines in my FPV feed and an osd that dissapeared under slight throttle fluctuations.
At the time, I was using I was using a first gen DYS F4 PRO, and I put 4 individual low esr caps on each of the + and - ESC pads on the FC side. This literally changed nothing, and I still had the same horrific video noise.
I talked with some people in my local MultiGP chapter and they told me I needed to move the caps to as close to the ESCs as possible and keep the capacitor's leads as short as possible as well.
I took their advice, and literally placed the same 4 individual caps directly onto each of the + and - pads of each ESC.
All noise immidiatley vanished and my OSD was crystal clear and constant.🖒
I later asked why it made such a night and day difference, and I was told that the noise caused by our ESCs is like a small snowball rolling down a hill quickly becoming a massive one. The sooner you can stop it (filter the noise), the better.
In my case, by the time the noise had hit my caps when I had them on the the FC side, the noise had already been growing from "rolling down the hill" long enough for the caps to be completely ineffective.
But when I moved the caps to right on the source, it worked perfectly.
This is also why I find caps that are placed on the battery leads for non 4in1 ESCs a joke.
Amari FPV maybe Drone Mesh could do a test on the difference between mounting locations for ESCs. Could be that the further away from the source the bigger the cap required.
I use caps on all my build along with matek fc. What 4 in 1 esc is good to use with matek fc? I know bad esc's can screw up a fc even if you put caps on it.
Amazing video 👍❤️😍
Test 1000uf caps on all 4 esc's
Seen some square low esr capacitors? Could you thow those in the mix please ?
Love your channel, drone science for the win! I'm going to do my first build with a Helio spring, so I'm going to be using a Matek fchub as pdb. Curious if anyone has used caps on the vbat pads that feed the FC? Just thinking that would keep the noise out of the gyro, and I would run the vtx and cam off the FC bec.
DrDeeZee FPV Low esr caps go on vbat where xt60 is connected for best result that is if your using only 1
What software are you using for these test? I would love to test in the future
Hi mesh I’m building my first quad from one of your videos that i watched and I’m just waiting for my motors but my question is when I plug it to the battery with out the motors the esc’s make no noise is that normal since they have no motors connected? Thanks for any help. 👍👍👍
martin maciel . That's normal, the noise comes from the motors, so no worries. Wish you well with your build.
You used the wrong *which* in your thumbnail
Yes .. noticed it late will fix it tommorow
What editing software do you used?
Dylan Watkins I always use Adobe premier
Did anyone else notice the voice change at 0:34
Another great post!!! Thanks for all the testing!!! 👍😀👍
Respect
*Which
Couple of hours too late. I bought exactly that board :-(
That is clean setup ? Ehm okay
D.O.P.E. info thanks !!!
Did you now quit youre jobs ?
Bennie Leip Yes while ago
Drone Mesh thats a big jump man hope you get more than you need 👍🏻 but did you talked about it in you're vids? (Or i just forgot it😆)
*Which........
RCFlyer85 Where the hell have you been??
Yea I noticed I'll change the thumbnail tommorow for now it will attract people to correct me lol.
Drone Mesh lol.... I'm always around.... This new filming quality is pretty insane.... Is this the GoPro 6? Whatever it is it's amazing!
RCFlyer85 Thanks buddy.. No it's Panasonic Lumix DSLR and a Samsung s7+ whatever is ready for me to use I mix and match.