Texas Instruments: MDL-BDC24 Stellaris®︎ Brushed DC Motor Control Module with CAN

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Kit Overview

The Stellaris Brushed DC Motor Control Module with CAN (MDL-BDC24MDL-BDC24) improves on the highly successful MDL-BDCMDL-BDC design by providing variable speed control for both 12 V and 24 V brushed DC motors at up to 40A continuous current, while adding a new RS232-based serial control input that also functions as a serial-to-CAN bridge. The MDL-BDC24MDL-BDC24 includes a rich set of sensor interfaces, connectivity, and control options, including analog and quadrature encoder interfaces, high performance Controller Area Network (CAN) interfaces, and an RS232 port. The module uses highly optimized software and a powerful 32-bit Stellaris microcontroller to implement open-loop voltage control as well as closed-loop control of speed, position, or motor current.

The H-bridge on the MDL-BDC24MDL-BDC24 is run at high-frequency through the MCU's integrated PWM interface and enables DC motors to run smoothly and quietly over a wide speed range. The MDL-BDC24MDL-BDC24 uses highly optimized software and a powerful 32-bit Stellaris microcontroller to implement open-loop speed control as well as closed-loop control of speed, position, or motor current.

Key Applications: Motor Control, Security, Connectivity, Human Machine Interface (HMI), Industrial Automation.

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Technical Documents

Learning Center

Type	Description
User Guide	Texas Instruments: Stellaris MDL-BDC24 BDC-COMM Application User's Guide
User Guide	Texas Instruments: Stellaris MDL-BDC24 Brushed DC Motor Control Module Getting Started Guide
User Guide	TI: User Guide of Stellaris Brushed DC Motor Control Module with CAN (MDL-BDC24) Board
Product Brief	Texas Instruments: Stellaris Brushed DC Motor Control Module with CAN (MDL-BDC24) Product Brief
Datasheet	TI: Data Sheet of Stellaris LM3S2616 Microcontroller
Application Note	TI: Jaguar Motor Controller Frequently Asked Questions
Selection Guide	TI:Stellaris Family Product Selector Guide (Excel) (Rev. H)
Selection Guide	TI: Stellaris Family Product Selection Guide (Rev. J)
Whitepaper	TI: Fresh Innovators Put Ideas Into Action In Robot Contest

Design Elements

Type	Description

Video

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Kit Features

Quiet control of brushed DC motors
- 15 kHz H-bridge frequency
- Synchronous Rectification
Three options for open-loop voltage control
- Industry-standard R-C servo type (PWM) interface
- Controller Area Network (CAN) interface
- RS232 serial interface
Two options for closed-loop, speed, position, or current control
- Controller Area Network (CAN) interface
- RS232 serial interface
CAN communication
- Full configurability of module options
- Real-time monitoring of current, voltage, speed, and other parameters
- Load firmware over RS232/CAN
RS232 serial communication
- Bridges an RS232-enabled device to the CAN
- Directly interfaces to a PC serial port or National Instruments cRIO
Limit switch inputs for forward and reverse directions
Firmware features
- Full configurability of closed-loop module parameters
- Real-time monitoring of sensor data including motor current, encoder position or speed, and limit switch state
Status LED indicates run, direction, and fault conditions
Motor brake/coast selector
Quadrature encoder input (QEI) and analog input
Color-coded screw terminals for all power wiring
Easy to customize using tools supporting the MDL-BDC24MDL-BDC24 from Keil, IAR, Code Sourcery, or Code Red (using a Stellaris evaluation kit or preferred ARM Cortex-M3 debugger)

Kit Contents

The Texas Instrument's MDL-BDC24MDL-BDC24 Supplied with below contents:

MDL-BDC24MDL-BDC24 motor control module