Improving the performance or bandwidth of industrial servo-drive applications like robotic assembly systems, factory automation machinery and material handling systems has several direct effects on a manufacturer’s bottom line. Less waste in the manufacturing process, increased production throughput, and greater product consistency and quality will reduce manufacturing costs and in turn increase a manufacturer’s revenues and profitability.
At the heart of the matter of improving servo drive performance is the system’s currentloop performance or torque response. The current loop is the linchpin upon which the performance of the rest of the system depends. Even though several alternative architectures can provide a pathway to a greater current-loop bandwidth, some are more effective and cost-efficient than others. Only one solution in particular can optimize or eliminate the design trade-offs involving long, drawn-out and complex development programs, expensive bill of materials (BOM) costs, excessive power consumption, cumbersome thermal-management strategies and others. This solution, which is based on TI’s commercial-off-the-shelf (COTS) C2000™ real-time microcontrollers (MCUs) and the enhanced DesignDRIVE development platform, increases the bandwidth of a servo motor drive’s current control loop.