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James Nordstrom
09-22-2013 04:16 PM

Are capacitors necessary for an ESC (Electronic Speed Controller) design?

I noticed a lot of ESCs (Electronic Speed Controller) use capacitors; are they required and if so how do I size them. Looking to support 48V 50A – 100A outrunner motors.

I am using MOSFETs to drive the motor, does this change the capacitors requirements.

Here are the motor and controller specifications: http://humanoidplatform.wordpress.com/2012/05/25/motor-and-controller-requirements-custom-built/