hexTronik UBEC. Will supply a solid 5v or 6v to your reciever with a 2 to 5S Lipoly pack.
Specifications; Output: 5v/3a & 6v/3a (Selectable via jumper) Ripply: <50mVp-p(@2A/12V) Input: 5.5v~23v (2 to 5s) Size:41.6mm*16.6mm*7.0mm Weight: 12.5g
UBECs are used by connecting the input wires to the battery and the output to the receiver. This allows your Speed Controller to run cooler, and safer as you now have an external circuit to power your receiver. Should the Speed Controller be overloaded and fail, you still have control of your plane.
I get 6v and 7v output for the 2 jumper positions. I need 5v from my 22.2v Lipo. Since I bought 5 BEC and get the reading for each of them. Is there something that I miss here? The 5 v is for my on board camera that need 5v and 2 amp. max.
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Built my plane with this in it about 2-1/2 years ago, it was crashed right at 2 years ago. Have (finally) finished repairs on the airframe and re-installing electronics to get 'er in the air again. For whatever reason I do not have the jumper installed on mine, and I'm THINKING that was on purpose. I just tested everything on the bench, and the UBEC powers up the receiver and servos as it is. Does anyone have an instruction sheet for this bad boy so I can confirm whether I need the jumper installed or no? I'm pretty sure there was a sheet included with the BEC. Many thanks, Scottrik
Generally it is soldered to the red and black wires that your battery connects to (which lead to the esc. however if you are using a separate battery to power it then you would use what ever connector you battery has... there are a few different types
If you are setting up a straightforward aircraft configured for sport flying, the chances are that your ESCs BEC will deliver enough juice for both Rx and servos. These items come into their own when you have a set up that is drawing more current than your ESC can deliver. Heaps of servos, on board video etc. In such cases an independent supply is safer for the Rx and should help ensure that reception is retained by avoiding brown-outs (power interruption through over-drawing etc). Mind you, this item delivers only 3 amps. Many ESCs will kick out 4amp for the Rx.
Hey Guys will this BEC provide the amps needed for a 6ch orangerx and these servos(x4): HXT 6.9kg / 39.2g / .16sec Twin bearing servos?
Any info on how to calculate what kind of UBEC you need in different situations would be appreciated. The ESC I'm using is the HK 90-100a opto.
This is a very good question. The problem is that each type of servo requires a different amount of current. The current also depends on the load. Even if you measure the current under load condition you should account for some reserve. The worst problem is that almost no external BEC and no ESC with BEC provides reliable numbers. Most specify peak current not average current. In the very end it comes down to a rule of thumb thing. I recommend 500mA for a 9g servo and 1A for little larger servos
...and 1A for little larger servos. If you stall three powerful digital standard servos you have 10A. Anyway the HXT UBEC is one of the best and can definitely be used with 4 HXT900. I even use it for four analog standard servos in a 3m glider. None of these every failed. You may exchange the wire to the receiver. It is quite thin. It is probably fine from the electrical point of view but I am afraid of mechanical problems.
Thank you. These servos are nearly 40g standard servos. It would be great if I can get away with using this UBEC but I would rather not take any chances. It will be going in a 63" WS PT-19 from NP. I should mention I am putting a gyro on the wings as well. Best to get a bigger UBEC then I suppose, huh? Thanks again.
Oh, I am sorry. I just read HXT and though about HXT900. The HXT 6.9kg is a analog standard servo. As I wrote, I use the HXT UBEC with similar servos but only on a glider with almost zero load on the servos. You should probably go for a stronger device.
Thanks much. Looks like this one might go in my 1400mm L-4 then. the gyro might end up there as well so it can handle a little more wind. The gyro it turns out just draws 80ma. I really need to read up on all of this. Thanks again for all of the info. It's a good start.
May be one more comment on the gyro. You should not worry about the gyro itself. Modern gyros consume negligible power. It is more what the gyro does to the servo. The gyro makes the servo work (adjust position) almost continuously. This increases the power requirement and heats up the servo.
Ahh..great point. I was planning to use it on the ailerons for high winds. I might rethink my servos and get some nicer ones at least on the ailerons before I install the gyro. I plan to maiden before the gyro ships. It's been sitting in the print queue for days. *)
this bec will work but i would rather you buy turnigy high input switch regualator its a ubec hv and it can take whatever you wanna put into it. and intall it to the bottom of your wires at your esc dont combine everything at the deans plug . i run jets alot and im running alot of hv and a whole lotta amps !!!!
The wires alone should NOT be used to carry a 12v car batterys AMPERAGE. the amps a car battery puts out is usually in the 100's. the voltage is fine but the Amperage is what will burn it out, If the specs dont match up.
yes, disconect the red wire from your esc at the connector and tape it back. This unit powers the rx via a seperate battery or it is powered from your flight battery tying in to the battery leads. Most people use these to power their rx with a seperate battery so if the esc or flight battery fails and the motor stops they have control of the flight control surfaces with the battery they are using to power the UBEC. Cheap insurance.
Depends on your receiver input voltage. You can get a 1S which is fully charged 4.2V, however 2S is better if your receiver can accept voltages up to 8.4V ... but an UBEC is probably the best option since it is a regulator and will regulate the voltage/amps at all times.
Hi, this is linear or switching regulator, may cause interferences in my futaba receiver 72 MHz PPM.
I need power for my 4 futaba 3004 servos,are ok 3 amps
Needs to be in a cool location in the plane?
Can't post a review yet, so I'll just leave my comments here.
Used this to power a 5V surveillance camera. The existing 24V bus on the property was obviously not suitable. This unit did the job admirably and cost a fraction of what other 5V regulators would.
Yes if you are not using a Receiver pack make sure that you select a battery with the lowest discharge rate like 15C or 10C and then use this UBEC along with that to use it with the TX, Also I would recommend that you wait for the TX battery intead or a Life battery as then you won't require a UBEC.
I have only used this on a 450 size heli and i now have over 500 flights with good performance throughout the flights, some of the built in BEC's faze out when a big load is put on them, but this one seems to be fine.
This UBEC is used just to skip the usage of the internal BEC of the ESC, I personally use always the UBEC for my planes, just for safety reason, if the ESC fail, the UBEC still working and you can safety bring your plane back, all receivers works with 4.5 to 6Vdc, but you normally use batteries with 2S to 6S or more, it means that this UBEC can accept the input voltage from 5.5 (1S) to 23V ( 5S)...
just get two, put them both to the 6 v setting and connect them up in series, that's what i did ...
i'm using it to power a car radio from a truck's 2 12volt batteries because i didn't want to wire one battery all the way to the front...
chris I wired two of them in parrallel, had them on 6v and using to supply my 4 servos each drawing over 1 amp,in parrallel i get over 5.3A * 6V, this i did while waiting for 5A bec. so far it has been operating for 7 flights.
Para regular a voltagem. Vc coloca como entrada uma LiPo de 2s (7,4v) ou 3S (11v) e esse componente regula a voltagem para 5V ou 6V, conforme configurado.
Vc liga isso entre a LiPo e o seu receptor.
Retorne pontos se foi útil a informação.
Regula voltagem. Pode se usar de 5 a 23 volts na entrada e por meio de um jumper voce regula a voltagem entre 5 e 6 volts. Amperagem sempre será a mesma da bateria até atingir 3 amperes que e o maximo que ele deixa passar. Aceita qualquer tipo de bateria nessas voltagens ja citadas.
High Quality, Low Price, what more could you want?
It's not the same as the picture, but it actually looks better.
Here's some data I collected with a Fluke DMM: Battery Voltage (unloaded): 6.477v Battery Voltage (loaded): 6.466v Output Voltage (5v unloaded): 5.376v Output Voltage (5v loaded): 5.318v Output Voltage (6v unloaded): 6.307v Output Voltage (6v loaded): 6.323v
Load used was 2 3.3v 40,000mcd LED's with 182ohm resistors.
Hope this is useful to someone )
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A mi no me ha ido nada bien, lo he montado en 2 aviones con receptor Hitec a 35 Mhz y las interferencias son constantes a partir de 50-60 metros de distancia. No lo aconsejo para 35 Mhz.