powering receiver and servos in gliders

[Tyrant Blaze]

Hi ,

Aonther newbie question. I am used to putting full electric planes together and fully understand the electronics involved.

But what about gliders, sloap soarers specificaly. Do you need a regulator bewteen the receiver battery and the recevier? obvoisly no ESC is needed because there is no motor, but this is where the regulator is built into in all my planes.

Chris

[1958steveflying]

No just a 4.8v 4 cell Nimh or 6v 5 cell Nimh will do the trick, normally used as part of the ballast/weight balancing of the glider.

[YOUNG GUN]

...an ESC has a BEC in it - which is what powers your servos/RX.

You can buy "UBEC"s, which are units that can connect to your battery (i.e. Li-Po), which will then power your rx/servos - you can choose from 4.8V or 6v systems.

An example of one is here: http://www.sussex-model-centre.co.uk/sho...p?id=28725

You could just use a nicad - but Li-Po is another option with a UBEC.

[YOUNG GUN]

Here are a few other UBECs

http://www.brchobbies.co.uk/?page=shop&a...m&item=868

http://www.brchobbies.co.uk/?page=shop&a...m&item=217

http://www.brchobbies.co.uk/?page=shop&a...m&item=715

[Tyrant Blaze]

Quote:Originally posted by YOUNG GUN

Here are a few other UBECs

http://www.brchobbies.co.uk/?page=shop&a...m&item=868

http://www.brchobbies.co.uk/?page=shop&a...m&item=217

http://www.brchobbies.co.uk/?page=shop&a...m&item=715

Thanks Young Gun,

Thats the kind of thing I was thinking of, just did not know what it was called, looks to me like an isolated, switchmode regulator circuit. I used to design and build them in my last job!

Thanks

Chris

[YOUNG GUN]

Quote:Originally posted by Tyrant Blaze


Thanks Young Gun,

Thats the kind of thing I was thinking of, just did not know what it was called, looks to me like an isolated, switchmode regulator circuit. I used to design and build them in my last job!

Thanks

Chris

Yeah I was the same when i didnt use a ESC for the 1st time.

Are you going to make your own or just buy one?

[Tyrant Blaze]

Yeah I was the same when i didnt use a ESC for the 1st time.

Are you going to make your own or just buy one?
[/quote]

Might just make one, I think I have a coupe of National Instruments Switching Regulators lying about. You only need a diode, few capacitors and an inductor and you got yourself a reglator. Make a linear one and its even cheaper. Depends if I have the time.

Chris

[1958steveflying]

Still cheaper and easier to use one of these guys.
http://cgi.ebay.co.uk/RX-Receiver-Pack-4...35a206023d

[Tyrant Blaze]

Quote:Originally posted by 1958steveflying

Still cheaper and easier to use one of these guys.
http://cgi.ebay.co.uk/RX-Receiver-Pack-4...35a206023d

Yeah, cant argue with that. How long do you think that would last on a glider with 4 servo's?, just a ball park figure?

Chris

[Richard]

Heres a topic on a home built BEC

http://www.rctalk.co.uk/forum/topic.asp?TOPIC_ID=4371