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AN894
| Title |
Title
Motor Control Sensor Feedback Circuits
|
|---|---|
| Name |
Name
AN894
|
| Date |
Date
06/24/2015
|
| Application Categories |
Application Categories
Automotive /
Body System
Functional Enablement /
Input & Sensor Interface
Functional Enablement /
Motor Control
Home Appliance /
Motor Control
Motor Control /
AC Induction Motors
Motor Control /
Brushed DC Motors
Motor Control /
Brushless DC Motors
Motor Control /
Stepper Motors
Motor Control /
Switched Reluctance Motors
|
| Description |
Description
Sensors are a critical component in a motor control system. They are used to sense the current, position, speed and direction of the rotating motor. Recent advancements in sensor technology have improved the accuracy and reliability of sensors, while reducing the cost. Many sensors are now available that integrate the sensor and signal-conditioning circuitry into a single package. In most motor control systems, several sensors are used to provide feedback information on the motor. These sensors are used in the control loop and to improve the reliability by detecting fault conditions that may damage the motor. As an example, Figure 1 provides a block diagram of a DC motor control system to show the sensor feedback provided for a typical motor control.
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