Our Sites: GlobalSpec.com | GlobalSpec Electronics | CR4
Free Registration 

Motor Control Sensor Feedback Circuits


Print
Share via Email
From Microchip Technology, Inc.
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.
Product Announcements
Sauer-Danfoss - H1 Bent Axis Motors
H1 - the new generation of servo-controlled hydrostatic pumps and bent axis variable motors - is built around an advanced electrical control and available in a wide range of displacements. It is... (read more)
Avago Technologies - APDS-9801 Digital Proximity Analog Ambient Sensor
APDS-9801 is a highly integrated sensor consisting of an ambient light sensor (ALS) and a proximity sensor (PS) with built-in signal conditioning capability. The new product, an integrated ALS+PS... (read more)
Sinotech Motors - Custom DC Motors
Sinotech's DC motors are engineered in the U.S. and manufactured offshore for very competitive pricing. Over 800 standard motors are listed in the online catalog and most can be customized with... (read more)
 
Topics of Interest
Mark Yelverton, Brian Cusson, and Tom Timmons, manufacturing are driving the development and implementation of advanced control strategies. Partnerships between equipment suppliers and semiconductor...
Observers are mathematical devices that help clean up resolver feedback signals, improving servosystem response. Industrial servosystems often rely on resolvers for accurate feedback. A tracking loop...
New Scale Technologies has released a new application note describing how lens systems in digital still cameras and video cameras can be improved with the addition of a tiny new position sensor. The...
Introduction The servomotors used in industry today are used in a closed-loop servo system. To understand how the servomotor is used in the system, it is first necessary to review the entire system.
A modern actively controlled motor drive is a system that combines a power-electronic circuit and a motor. The electronics in the drive system control the behavior of the mechanical shaft of the...