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Intro to rotary resolvers and encoders

Posted: 20 Aug 2014     Print Version  Bookmark and Share

Keywords:Closed-loop  motor control systems  satellite  analogue signal chain  resolver 

Is your motor spinning at the intended rate? Closed-loop motor control systems continue to answer this question, as there tends to be a closed-loop system implemented wherever a motor spins. Whether the end system is an automobile (assisted parallel parking with computer controlled steering), a satellite (positions satellite to lock on to a specific signal), or factory floor machinery (a pickand- place machine), the position feedback sensor is an intrinsic element in the total motor-control system. There are many types of motor control, but this article discusses two that implement an analogue signal chain around the position sensor: the resolver and the encoder.

View the PDF document for more information.

Originally published by Texas Instruments Inc. at as "Closed-loop motor control: An introduction to rotary resolvers and encoders".

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