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Advantage Hobby . Revolution Models . CarbonXtreme

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e-Electric Motors & Controllers > noise from ESC's
 
 
Seablade
Key Veteran
Location: floating around

My Posts This: Topic  Forum		The general feeling is that the output from the ESC to the motor is a good source of electrical noise.
If this is so, why don't we put "chokes" on the output wiring to the motor?
The manufacturers do not put any chokes on the output so what do they know different from the "general feeling"?

"Vini, Vidi, Velcro"
10-22-2009 01:21 PM
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Midland Helicopters . HeliProz . Ron’s HeliProz South

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e-Electric Motors & Controllers > noise from ESC's
 
 
GyroFreak
Elite Veteran
Location: Florida ... 28° 52' N 81° 16' W

My Posts This: Topic  Forum		Good question:
I would expect the noise from a ESC is much like a switching power supply, lots of it but rise times are controlled so the emanated RF noise is in the low frequency range and low in energy.
Gassers have a spark that is high voltage and fast rise time, generating a very narrow impulse that has considerable energy and high frequency components that couple well into other circuits. It is that HV fast rise time that can be the killer for other circuits close by (and every thing is close by on a Heli)

Bacteria They're the only culture some men have
Growing old is mandatory; growing up is opti
10-22-2009 02:39 PM
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Advantage Hobby . Revolution Models . CarbonXtreme

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e-Electric Motors & Controllers > noise from ESC's
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