Servo motors are self-contained electric devices (see Figure 1 below) that rotate or push parts of a machine ...    More ...

Servo motors are self-contained electric devices (see Figure 1 below) that rotate or push parts of a machine with great precision. ATO 7.5 kW AC servo motors are found in many places: from toys to home electronics to cars and airplanes. If you have a radio-controlled model car, airplane, or helicopter, you are using at least a few servos. In a model car or aircraft, servos move levers back and forth to control steering or adjust wing surfaces. By rotating a shaft connected to the engine throttle, a servo regulates the speed of a fuel-powered car or aircraft. Servos also appear behind the scenes in devices we use every day.

A servo motor amplifier takes a control signal from the motor controller and amplifies it up to deliver a specific amount of power to the motor. There are a number of different types of servo amplifiers out there but a common one is called a "torque-mode" amplifier. This type of amplifier converts the command signal from the controller into a specific amount of current (in Amps) delivered to the motor. In a rotary motor-current is directly proportional to torque-so the amplifier is actually directly controlling the amount of torque on the motor. In a linear motor, current is proportional to force-so likewise the amplifier is directly controlling the amount of force coming out of the motor. The amplifier closes a current loop around the motor at a very fast rate so that the motor controller's command signal closely matches the actual current that is delivered to the motor. See more about ATO servo motors on: https://www.ato.com/servo-motors

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