More info
Too long wires batteryside can kill ESC over time: causes, precautions, solutions & workarounds - RCG
Contents - Two problems
• Voltage spikes higher than battery voltage, at 8/16/24/32kHz: transistor / powerFET / die breakdown.
• Current through input capacitors too high: overheating, popping or even 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
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Last edited by ron_van_sommeren; 10-17-2024 at 09:55 AM.