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HomeRC & Power✈️Aircraft🚁HelicopterRadio - Servo - Gyro - Gov - Batt › 11.1v to 7.4v Lipo step down regulator
08-02-2007 03:23 PM  13 years ago
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SCADABOY

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Brantford, Ontario, Canada

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11.1v to 7.4v Lipo step down regulator
Hello all,

I would like to install or use my 11.1 volt Lipo batteries in my Trex 600N for the RX pack, but it needs to be stepped down to 7.4 volts. Is there some kind of voltage regulator avalible to do this? or can I build it myself with the proper Resistors?
Scadaboy
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08-02-2007 06:47 PM  13 years ago
SRH990

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Birmingham, UK

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So you want a stepdown regulator to reduce the voltage from 11.4v to 7.4v so you can then run it into a stepdown regulator to reduce it to 5.8v. The problem with this is the added complexity and additional failure points. You can buy switching regulators that will take up to 30v and reduce it to 5v or 6V, these would be a better option.Steve -Trex 700N, Trex 600N, Raptor 550E, 450SE, Mini Titan, Logo 5003D, Beam E4
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08-02-2007 07:49 PM  13 years ago
SCADABOY

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Brantford, Ontario, Canada

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I see what you mean SRH990, I think I will stick with the 7.4 Lipo's and keep life simple

Thanks for the reply!
Scadaboy
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08-02-2007 09:48 PM  13 years ago
PietervA

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New Zealand

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Koolflightsystems have the UBEC, rated input up to 30 & 45V, output 3A constant, 5A peak at 5 to 6V. I'd suggest the 6V unit, and step down the tail servo with a diode (ie approx 5.3V).

I used 2 of their units for many years, only replacing them when I started running Atx 758s & 611/9256s on my helis.

Really liked getting at least 10 flights out of a 2200mAh 3S pack!

R
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HomeRC & Power✈️Aircraft🚁HelicopterRadio - Servo - Gyro - Gov - Batt › 11.1v to 7.4v Lipo step down regulator
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