Will this work?
06-26-2012, 05:14 PM
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Will this work?
I have few high capacity 3 cells 5000 mAh 25c LiPo batteries and ESC ‘s laying around and I was looking at them today and a thought went through my mind. I asked myself, how about using the extra batteries and ESC in my non-electric airplane.
This is what I want to do:
1. Plug the Lipo battery into the ESC as normal
2. Plug the output that goes into the throttle channel of an electric airplane into my on/off switch in my airplane (it produces 5V)
3. Cap off the three wires that goes into an electric motor.
So, what do you guys think? Is this doable or not?. I’ve already connected this to a voltmeter and it shows constant output of 5.2V
This is what I want to do:
1. Plug the Lipo battery into the ESC as normal
2. Plug the output that goes into the throttle channel of an electric airplane into my on/off switch in my airplane (it produces 5V)
3. Cap off the three wires that goes into an electric motor.
So, what do you guys think? Is this doable or not?. I’ve already connected this to a voltmeter and it shows constant output of 5.2V
06-26-2012, 06:15 PM
#2
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RE: Will this work?
What's the BECrating on those ESC's? Most of the ones I've seen are less than 4A. Most are fine for a foamy or light plane, but I'd be worried that it may not be enough to power your receiver and servos on a medium or larger plane, or especially in a jet with high current servos.
Joe
Joe
06-26-2012, 06:26 PM
#3
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RE: Will this work?
ORIGINAL: ghost_rider
I have few high capacity 3 cells 5000 mAh 25c LiPo batteries and ESC ‘s laying around and I was looking at them today and a thought went through my mind. I asked myself, how about using the extra batteries and ESC in my non-electric airplane.
This is what I want to do:
1. Plug the Lipo battery into the ESC as normal
2. Plug the output that goes into the throttle channel of an electric airplane into my on/off switch in my airplane (it produces 5V)
3. Cap off the three wires that goes into an electric motor.
So, what do you guys think? Is this doable or not?. I’ve already connected this to a voltmeter and it shows constant output of 5.2V
I have few high capacity 3 cells 5000 mAh 25c LiPo batteries and ESC ‘s laying around and I was looking at them today and a thought went through my mind. I asked myself, how about using the extra batteries and ESC in my non-electric airplane.
This is what I want to do:
1. Plug the Lipo battery into the ESC as normal
2. Plug the output that goes into the throttle channel of an electric airplane into my on/off switch in my airplane (it produces 5V)
3. Cap off the three wires that goes into an electric motor.
So, what do you guys think? Is this doable or not?. I’ve already connected this to a voltmeter and it shows constant output of 5.2V
06-26-2012, 07:42 PM
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RE: Will this work?
ORIGINAL: Ruizmilton
what do you want to use the output 5 v for? what will it power?
what do you want to use the output 5 v for? what will it power?
06-26-2012, 07:50 PM
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RE: Will this work?
ORIGINAL: basimpsn
It depends on how much amps its rated for.
ORIGINAL: ghost_rider
I have few high capacity 3 cells 5000 mAh 25c LiPo batteries and ESC ‘s laying around and I was looking at them today and a thought went through my mind. I asked myself, how about using the extra batteries and ESC in my non-electric airplane.
This is what I want to do:
1. Plug the Lipo battery into the ESC as normal
2. Plug the output that goes into the throttle channel of an electric airplane into my on/off switch in my airplane (it produces 5V)
3. Cap off the three wires that goes into an electric motor.
So, what do you guys think? Is this doable or not?. I’ve already connected this to a voltmeter and it shows constant output of 5.2V
I have few high capacity 3 cells 5000 mAh 25c LiPo batteries and ESC ‘s laying around and I was looking at them today and a thought went through my mind. I asked myself, how about using the extra batteries and ESC in my non-electric airplane.
This is what I want to do:
1. Plug the Lipo battery into the ESC as normal
2. Plug the output that goes into the throttle channel of an electric airplane into my on/off switch in my airplane (it produces 5V)
3. Cap off the three wires that goes into an electric motor.
So, what do you guys think? Is this doable or not?. I’ve already connected this to a voltmeter and it shows constant output of 5.2V
It is E-Flite 25 Amp Pro Brusheless ESC
06-26-2012, 07:53 PM
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RE: Will this work?
ORIGINAL: joeflyer
What's the BEC rating on those ESC's? Most of the ones I've seen are less than 4A. Most are fine for a foamy or light plane, but I'd be worried that it may not be enough to power your receiver and servos on a medium or larger plane, or especially in a jet with high current servos.
Joe
What's the BEC rating on those ESC's? Most of the ones I've seen are less than 4A. Most are fine for a foamy or light plane, but I'd be worried that it may not be enough to power your receiver and servos on a medium or larger plane, or especially in a jet with high current servos.
Joe
Here are stats on it:
25-Amp Pro Brushless ESC
Key Features
Up to 25-amp continuous current with proper air flow
Finned heat sinks for both the motor drive MOSFETs and dual BEC regulators to support up to 4 sub-micro servos
Programmable motor braking
Safe power-arm mode prevents accidental starts
Programmable low-voltage cutoff with settings for 2-cell Li-Po (6V), 3-cell Li-Po (9V) or 70% of battery starting voltage
Programmable throttle input range (1.1–1.9 ms or Auto Select)
Auto motor shut down if signal is lost or there is interference
Programmable timing—2 user-selectable ranges for use with a large variety of brushless motors
Pre-wired connectors—E-flite EC3 on battery input and 3.5mm female gold bullets on motor output leads
Soft start
06-27-2012, 02:47 AM
#11
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RE: Will this work?
Correct, 25 amps is for the motor,. The BEC is what powers the receiver and servos. The above specs don't say what the amperage rating is for the BEC. It does say that it will support up to 4 sub micro servos, I wouldn't use it for anything more than that.
Joe
Joe
06-27-2012, 03:03 PM
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RE: Will this work?
Thanks Guys for all the input. I will leave this experiment alone now but will come back to it later. I'm still of the opinion that this should work because the ESC would be used as a BEC only. It will not power any motor but just the Rx with 4 standard servos attached.
06-27-2012, 04:16 PM
#13
RE: Will this work?
It will absolutely work as a stand alone BEC, no doubt. The problem, as I see it, is that it clearly says "4 sub micro servos". Mfr's rarely UNDER state their products' capabilities, so I wouldn't push the BEC with standard servos. Not attaching a motor to the ESC does not mean that the BEC side can support larger servos. For not much $$, it's a much safer and better bet to purchase a dedicated regulator. IMO.
06-27-2012, 04:58 PM
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RE: Will this work?
I have ALIGN RCE-B6X voltage regulator (with built in voltage display) but it is for 2 cell Lipo and not 3 cells. I have a bunch of 3 cell Lipo at home that I would like to find a place for.
Like I said, I will re-visit this project later but something inside me tells me that this will work.
Best Regards
Like I said, I will re-visit this project later but something inside me tells me that this will work.
Best Regards
06-27-2012, 05:20 PM
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RE: Will this work?
I did more research on this and found the following [link]http://www.horizonhobby.com/pdf/EFLA1025_manual.pdf[/link]
Take a look at the Servo Ratings with BEC Enabled
Take a look at the Servo Ratings with BEC Enabled
