What's inside the servo?

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What's inside the servo?

Post by Admin on Sun Oct 15, 2017 9:39 pm


To fully understand how the servo works, you need to take a look under the hood. Inside there is a pretty simple set-up: a small DC motor, potentiometer, and a control circuit. The motor is attached by gears to the control wheel. As the motor rotates, the potentiometer's resistance changes, so the control circuit can precisely regulate how much movement there is and in which direction.

When the shaft of the motor is at the desired position, power supplied to the motor is stopped. If not, the motor is turned in the appropriate direction. The desired position is sent via electrical pulses through the signal wire. The motor's speed is proportional to the difference between its actual position and desired position. So if the motor is near the desired position, it will turn slowly, otherwise it will turn fast. This is called proportional control. This means the motor will only run as hard as necessary to accomplish the task at hand, a very efficient little guy

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Re: What's inside the servo?

Post by KathrynB on Wed Oct 18, 2017 1:41 pm

Can u give me a sample picture inside the servo motor?

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Re: What's inside the servo?

Post by Admin on Wed Oct 18, 2017 1:56 pm


this is the sample inside the servo motor Smile

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Re: What's inside the servo?

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