qoistoochee128

Designing robust, fault-tolerant motion control feedback systems

Overview

The key to robust operation in a system lies in the way it handles mechanical and electrical faults. This article discusses the design of a robust and fault-tolerant motion-control system whose feedback paths incorporate quadrature encoders.

Servo Systems

Modern automated systems incorporate closed-loop feedback for motion control. They typically include a servo system that consists of a motor driver and feedback elements combined in a manner that gives accurate and stable control over speed and position. The various system-level components of a typical servo system are illustrated in Figure 1.

Figure 1. This DC brushless servo system uses quadrature optical encoders to provide velocity and position feedback to the motion controller.

Figure 1. This DC brushless servo system uses quadrature optical encoders to provide velocity and position feedback to the motion controller.

Documentation

Application Note

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-07-01 08:27:21

Microcontroller control motor program
I am self-studying single-chip microcomputer and I am currently working on a project. It is as follows: single-chip microcomputer controls 220V 120W motor———— Turn on the power supply--the motor does
20 circuits that electronic engineers must master
20 circuits that electronic engineers must master
【CN0102】Using the AD7190 24-bit Σ-Δ ADC with built-in PGA to realize the design of precision electronic scale
Circuit Function and BenefitsThis circuit is for a weigh scale system that uses the AD7190, an ultra-low noise, low drift, 24-bit Σ-Δ ADC with built-in PGA. This device simplifies weigh scale design b
Lithium battery charging and discharging integrated chip
I want to connect several lithium batteries in parallel, but only to expand the capacity without increasing the voltage. Is there any integrated charging and discharging chip? The peripherals should b
The difference between cpld's logic gate LE and equivalent macro unit
Dear experts, I am a little confused about the concepts of cpld logic gates, LEs in the manual, and Typical Equivalent Macrocells. Let me show you the pictures first. The pictures below are the parame
How to use constant current source to achieve 1uA accuracy
I would like to ask you a question, how to use a constant current source to achieve an accuracy of 1uA?

Datasheet More

Circuits More