Do i need a BEC/step-down regulaltor

[lampard]

Hi all,
i got one question, when do we need the BEC/step down regulator? im lil bit confused. the manufacturer said that if your servo can support 6v, you DONT need the step down. but if im using a lipo(7.4v) there is an extra 1.4v(7.4v - 6v=1.4v) so do i need to use the step down regulator?? if i dont use it, wont it damage the servos?? thanks guys:wink:

[LITHIUMSTATIC]

Hi all,
i got one question, when do we need the BEC/step down regulator? im lil bit confused. the manufacturer said that if your servo can support 6v, you DONT need the step down. but if im using a lipo(7.4v) there is an extra 1.4v(7.4v - 6v=1.4v) so do i need to use the step down regulator?? if i dont use it, wont it damage the servos?? thanks guys:wink:

Yes use one on the tail servo.... it make your tail servo last longer. If anyone has more input or can explain please chime in.

[lampard]

Yes use one on the tail servo.... it make your tail servo last longer. If anyone has more input or can explain please chime in.
thanks... yah... if anyone got some ideas, please tell us. this will help me, and the newbie. im still new to this big heli so im not sure if i need a BEC.:)

[celter]

I am a little confused. The 7.4 V is the input voltage right? The output is probably 6 or maybe 5 V. Some digital servos don't support 6V, then you need a step-down regulator if your ESC/UBEC has a 6V output voltage. Some gyros don't support 6V ( like the Logictech 2100) then you need to wire the step-down before the gyro. AND, a BEC and a step down regulator are 2 different things. You need a BEC if your ESC doesn't have an internal BEC or if you are running several digital servos on your heli.

[lampard]

I am a little confused. The 7.4 V is the input voltage right? The output is probably 6 or maybe 5 V. Some digital servos don't support 6V, then you need a step-down regulator if your ESC/UBEC has a 6V output voltage. Some gyros don't support 6V ( like the Logictech 2100) then you need to wire the step-down before the gyro. AND, a BEC and a step down regulator are 2 different things. You need a BEC if your ESC doesn't have an internal BEC or if you are running several digital servos on your heli.

OMG... im more confused now... can you guys explain the parts below:
1) BEC
2) step down
3) input/output/ etc

thanks:noteworthy

[celter]

BEC(Battery elimination circuit). It takes power from the main battery pack or an extra battery, this is the INPUT voltage. It supplies power to the servos , Normally 5 or 6 V. This is the OUTPUT voltage. The BEC is either build into the ESC (electronic speed controller) or you need an external BEC. IF the BECs output voltage is higher than what your servos can take, you need a step-down regulator. This only reduces the voltage from 6 to 5.1 V. It costs almost nothing while a good BC will cost you about 30$.

[celter]

and by the way, read this: http://www.swashplate.co.uk/ehbg-v17/ehbg_index.html