Solutions for Switched Reluctance (SR) Motor Control
A Switched Reluctance (SR) or variable reluctance motor does not contain any permanent magnets. The tradeoff for this low-cost construction is a more complex drive with more switches and complex control techniques to achieve a smooth torque operation. SR motors are ideal for applications that require high-speed operation and power density in a compact form factor.
How a SR Motor Works
While SR motor control is simple to implement, this type of motor is not commonly available. The stator is similar to that of a Brushless DC (BDC) motor, however, the rotor is made only of iron laminates. The iron rotor is attracted to the energized stator pole, and the polarity of the stator pole does not matter. Torque is produced as a result of the attraction between the electromagnet and the iron rotor.
SR Motor Characteristics
- Synchronous operation
- Low-cost motor due to simple and magnet-free construction
- More suitable for high-speed/power density applications
How It Works
Featured Software Tools
Motor Control Application Algorithm and Software Library
To support the development of motor applications, we provide Brushed DC motor control examples.
MPLAB® X Integrated Development Environment (IDE)
MPLAB X Integrated Development Environment (IDE) is an expandable, highly configurable software program that incorporates powerful tools to help you discover, configure, develop, debug and qualify embedded designs for Microchip’s microcontrollers and digital signal controllers.
MPLAB Code Configurator (MCC)
MPLAB Code Configurator (MCC) is a free, graphical programming environment that generates seamless, easy-to-understand C code to be inserted into your project.
- dsPIC33 Motor Control Products
- All Motor Control MCUs
- 32-bit Motor Control Products
- Three-Phase Motor Drivers
- Stepper and Brushed DC Motor Drivers
- Application Notes
- Brochures
- Code Examples
- Software
- User Guides
- White Papers
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| AN1206 - Sensorless Field Oriented Control (FOC) of an AC Induction Motor (ACIM) Using Field Weakening | Download |
| AN1292 - Dual-Shunt FOC with PLL | Download |
| AN3049 - Sensorless Position Control of Brushed DC Motor Using Ripple Counting Technique | Download |
| AN2584 - Integrated Power Factor Correction (PFC) and Sensorless | Download |
| AN1162 - Sensorless Field Oriented Control (FOC) of an AC Induction Motor (ACIM) | Download |
| AN887 - AC Induction Motor Fundamentals | Download |
| AN955 - VF Control of 3-Phase Induction Motor | Download |
| AN1305 - Sensorless 3-Phase Brushless Motor Control with the PIC16FXXX | Download |
| AN900 - Controlling 3-Phase AC Induction Motors Using the PIC18F4431 | Download |
| AN905 - Brushed DC Motor Fundamentals | Download |
| AN2757 - Sensored (Encoder-Based) Field Oriented Control of a Three Phase Permanent Magnet Synchronous Motor (PMSM) | Download |
| AN2520 - Sensorless Field Oriented Control (FOC) for a Permanent Magnet Synchronous Motor (PMSM) Using a PLL Estimator and Equation-based Flux Weakening (FW) Application Note | Download |
| AN2590 - Sensorless FOC for PMSM Using Reduced Order Luenberger Observer - Sensorless FOC for PMSM Using Reduced Order Luenberger Observer Application Note | Download |
| AN984 - An Introduction to AC Induction Motor Control | Download |
| AN967 - Bidirectional VF Control of Single and 3-Phase Induction Motors Using the PIC16F72 | Download |
| AN4764 - FOC of Three-Phase BLDC Motor Using Rotary Inductive Position Sensor | Download |
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| Motor Control and Drive Brochure | Download |
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| CE002 Configuring 10-Bit dsPIC DSC A/D Converters for 1 Msps Conversion Rate | Download |
| CE019 - Proportional Integral Derivative (PID) controllers & closed-loop control | Download |
| Sensorless FOC PLL Estimator MCLV | Download |
| PFC Sensorless FOC PLL Estimator MCHV | Download |
| CE155 - Real-Time Data Monitoring (RTDM) Example | Download |
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| dsPIC33 Motor Control Library for FOC | Download |
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| WP100 - How to Turn an AC Induction Motor Into a DC Motor (A Matter of Perspective) | Download |
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Using the LX7720 and SAMRH71 for Motor Control Applications in Space
This video demonstrates using the LX7720 Rad Hard Motor Control IC with the SAMRH71 Rad Hard Arm MPU for satellite motor control and position sensing applications. Key features of each component are given along with a description of the evaluation system using the LX7720-DB daughter board with the SAMRH71F20-EK evaluation kit.
Getting Started with motorBench® Development Suite v2.25
Getting Started with motorBench® Development Suite v2.25
motorBench® Development Suite is a software development tool for Field Oriented Control (FOC) based motor control applications. This tutorial shows you how to go from installation to code generation within minutes.
dsPIC® Refrigerator Compressor Reference Design
dsPIC® Refrigerator Compressor Reference Design
This video will introduce you to Microchip’s refrigerator compressor reference design that will help you to rapidly prototype and develop a cost-effective and innovative design using a dsPIC33 Digital Signal Controller.
motorBench® Development Suite Demo
motorBench® Development Suite Demo
This video will demonstrate how motorBench development suite and the dsPIC33 DSCs simplify spinning a BLDC or PMSM motor.
dsPIC Motor Control Development Tools Demonstration
dsPIC Motor Control Development Tools Demonstration
Microchip's dsPIC33 DSCs enable the design of high-performance, precision motor control systems that are more energy efficient, quieter in operation, have a great range and extended life. See how they can be used to control brushless DC, permanent magnet synchronous, AC induction and stepper motors.
Scalable dsPIC33C DSCs for Time-Critical Applications
Scalable dsPIC33C DSCs for Time-Critical Applications
This video introduces Microchip’s latest dsPIC33C family of DSCs offering single core and dual core variants for time-critical control and high-performance embedded applications.
Optimized Air Conditioner Design with the Dual Core dsPIC33CH DSCs
Optimized Air Conditioner Design with the Dual Core dsPIC33CH DSCs
This video will introduce you the dual core dsPIC33CH DSC based Air Conditioner reference design.
Introducing the dsPIC33CH Family of Dual-Core Digital Signal Controllers (DSCs)
Introducing the dsPIC33CH Family of Dual-Core Digital Signal Controllers (DSCs)
This video is a quick introduction to the high-performance dual-core and peripheral of the dsPIC33CH family of DSCs. Learn how to take advantages of the new features of the dsPIC33CH family of DSCs, in your next real-time embedded system development.
Dual-Core dsPIC33CH DSCs Get Simplified with MPLAB® Code Configurator (MCC)
Dual-Core dsPIC33CH DSCs Get Simplified with MPLAB® Code Configurator (MCC)
This video will demonstrate the basic setup of MPLAB® Code Configurator for a dual-core dsPIC DSCs.
dsPIC33CH Dual Core Demonstration
dsPIC33CH Dual Core Demonstration
Ever wish you had a microcontroller with an extra core to handle your complex application? Watch how our new dsPIC33CH dual core family operates two cores independently of each other making them ideal for your high-end embedded control system.
Event Sequencing using Peripheral Trigger Generator (PTG)
Event Sequencing Using Peripheral Trigger Generator (PTG)
This video will introduce you to one of our new peripherals, the Peripheral Trigger Generator or commonly referred as PTG, available on 16-bit dsPIC33 digital signal controllers. The video will give a glimpse into the capabilities of PTG peripheral, which can help you in addressing the challenges of sequencing asynchronous tasks and event triggers.
Cost-Effective BLDC Motor Control with PIC32MM
Cost-Effective BLDC Motor Control with PIC32MM
Learn how you can implement a cost-effective BLDC motor control solution with low cost PIC32MM 32-bit MCUs.
MIC4605 BLDC Ceiling Fan Demonstration
MIC4605 BLDC Ceiling Fan Demonstration
This video demonstrates a highly efficient BLDC ceiling fan using complete microchip solutions, such as microcontrollers, power management solutions (Controller, Regulator and LDO), and wireless communication ICs.
MCP8024 TQFP BLDC Evaluation Board Demo
MCP8024 TQFP BLDC Evaluation Board Demo
This video will demonstrate the MCP8024 BLDC Motor Driver Evaluation Board.
Microchip's Motor Driver Solutions FAQs
Microchip's Motor Driver Solutions FAQs
This video answers popular questions of highly integrated motor drivers from Microchip.
High Voltage Motor Control
High Voltage Motor Control
Microchip's High Voltage Motor Control demo board showcases the capability of the dsPIC Digital Signal Controller for motor control.
Microchip dsPIC® DSC Motor Control Solutions
Microchip dsPIC® DSC Motor Control Solutions
Microchip’s advanced motor control solutions in action at DESIGN West 2012! A dsPIC® digital signal controller controls a BLDC motor, an AC induction motor, and a stepper motor using high performance motor control techniques.
MCP8024 3-Phase BLDC Motor Gate Driver with Power Module Introduction
MCP8024 3-Phase BLDC Motor Gate Driver with Power Module Introduction
This video introduces Microchip’s first feature-rich 3-phase bldc motor gate driver with power module and provides detailed features.
Low-Voltage Motor Control Bundle Demonstration from the 2014 Microchip MASTERs Conference
Low-Voltage Motor Control Bundle Demonstration from the 2014 Microchip MASTERs Conference
Here is a quick demonstration on how Microchip’s Low-Voltage Motor Control Bundle drives two 10V-24V motors simultaneously.