Hallo Leute,
ich habe bei HeliFreak was interessantes gefunden - das sollte einige Probleme mit Brushless-ESC's verbessern...
" 2. R²protector
We think it is time to do something to protect the electronics from BEC defects.
...all BECs except of HV²BEC (and now LV²BEC) can mutate to a continuous electrical conductor. Overvoltage / high voltage peaks at input (by a commutation failure), inductive high voltage peaks from servos at the output, buck converter design failure, ... A power FET gets killed and *bang* ... input raw voltage (battery) appears at the output.
Some BECs and other voltage regulators (e.g. the LDO in the Vbar main unit) can be disturbed by inductive voltages (back EMF from servos).
etc etc...
R²protector goes between any BEC and its load.
... high-voltage protection (input), reverse polarity protection, voltage clamping at output (against back EMF voltages), overcurrent protected (50A)
It's a tiny, light-weight device, presumably at a relatively low price."
( Availability of JLog - HeliFreak )
Gruß,
Markus
ich habe bei HeliFreak was interessantes gefunden - das sollte einige Probleme mit Brushless-ESC's verbessern...
" 2. R²protector
We think it is time to do something to protect the electronics from BEC defects.
...all BECs except of HV²BEC (and now LV²BEC) can mutate to a continuous electrical conductor. Overvoltage / high voltage peaks at input (by a commutation failure), inductive high voltage peaks from servos at the output, buck converter design failure, ... A power FET gets killed and *bang* ... input raw voltage (battery) appears at the output.
Some BECs and other voltage regulators (e.g. the LDO in the Vbar main unit) can be disturbed by inductive voltages (back EMF from servos).
etc etc...
R²protector goes between any BEC and its load.
... high-voltage protection (input), reverse polarity protection, voltage clamping at output (against back EMF voltages), overcurrent protected (50A)
It's a tiny, light-weight device, presumably at a relatively low price."
( Availability of JLog - HeliFreak )
Gruß,
Markus
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