Spectrum smart ESC Extension
09-01-2021, 05:05 PM
#1
New Member
Thread Starter
Join Date: Sep 2021
Posts: 2
Spectrum smart ESC Extension
hi guys
im upgrading my e flite esc to a spektrum smart ESC. the issue im having is my battery side is about 8 inches short.could i add an extension to the smart ESC at that length and not have any issues?the EDF is the e flight thunderbird 70mm and the channel in front of the fan motor wont allow for it to go to far forward
im upgrading my e flite esc to a spektrum smart ESC. the issue im having is my battery side is about 8 inches short.could i add an extension to the smart ESC at that length and not have any issues?the EDF is the e flight thunderbird 70mm and the channel in front of the fan motor wont allow for it to go to far forward
09-01-2021, 06:27 PM
#2
Past President of PSSF
Join Date: Sep 2009
Location: Lacey WA, 1 mile E of Mushroom Corner
Posts: 2,224
No, you can't just add wire to the battery side. It does all kinds of bad things to the ESC. Ron Van Sommeren has several posts about this. Try to look up his posts.
You can extend the motor side, but that sounds like it may not work.
Can you cut a larger area?
You can extend the motor side, but that sounds like it may not work.
Can you cut a larger area?
09-01-2021, 06:33 PM
#3
New Member
Thread Starter
Join Date: Sep 2021
Posts: 2
Originally Posted by Wildflyer
No, you can't just add wire to the battery side. It does all kinds of bad things to the ESC. Ron Van Sommeren has several posts about this. Try to look up his posts.
You can extend the motor side, but that sounds like it may not work.
Can you cut a larger area?
You can extend the motor side, but that sounds like it may not work.
Can you cut a larger area?
im going to move the esc to the backside of the cockpit close to the CG and run a extension from the back of the ESC(motor side) to the EDF fan unit.this way no cutting etc and clean looking. thnx for the input
09-03-2021, 06:18 AM
#4
homo ludens modelisticus
Join Date: Jul 2005
Location: near Nijmegen, Nederland
Posts: 1,399
If you cannot but extend, extend the motorwires, not the batterywires, and keep controller(s) close to battery(s).
No need for extra input capacitors, resulting in more space, less costs and less points of failure
Too long wires batteryside will kill ESC over time: precautions, solutions & workarounds - RCG
Contents
diy motor tips&tricks • Cumulus MFC •[/SIZE]
No need for extra input capacitors, resulting in more space, less costs and less points of failure
Too long wires batteryside will kill ESC over time: precautions, solutions & workarounds - RCG
Contents
- Two problems
• Voltage spikes higher than battery voltage: transistor / powerFET / die breakdown.
• Current through input capacitors too high: caps overheating/popping/exploding.
• Nonsense Ron, I never had problems with long battery wires. - Example: four costly controllers consecutively cremated
- Solution I: simply lengthen the motor wires instead
- Solution II: add extra capacitors, rules of thumb
Calculation spreadsheet - Capacitor type and polarity/orientation!
- How & where (not) to add extra capacitors
All capacitors as close to or on controller, do not distribute along batterywires. - DIY capacitor pack pictures
- Capacitor & pack suppliers
- Expert/manufacturer opinions & their rules of thumb
They all say the same ... noise_reduction_101, switching_power_supply_design_101. - Cause, explanation, water hammer/knock analogy&
, theory
References - Measurements & scope traces
diy motor tips&tricks • Cumulus MFC •[/SIZE]
Thread
Thread Starter
Forum
Replies
Last Post
AEAJR
General Electric Discussions
276
11-14-2021 05:11 PM
mclarkson
Power Systems
15
06-14-2016 08:52 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
