Speed Controller, Governor System, Actuator ( GAC, SIGMA dll)

An electronic speed control or ESC is an electronic circuit with the purpose to vary an electric motor' s speed, its direction and possibly also to act as a dynamic brake. ESCs are often used on electrically powered radio controlled models, with the variety most often used for brushless motors essentially providing an electronically-generated three phase electric power low voltage source of energy for the motor. An ESC can be a stand-alone unit which plugs into the receiver' s throttle control channel or incorporated into the receiver itself, as is the case in most toy-grade R/ C vehicles. Some R/ C manufacturers that install proprietary hobby-grade electronics in their entry-level vehicles, vessels or aircraft use onboard electronics that combine the two on a single circuit board.