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TI aims to eliminate FPGAs in servos with new software

TI aims to eliminate FPGAs in servos with new software

Technology News |
By Nick Flaherty



The DesignDRIVE Fast Current Loop software allows a current-loop performance under 1 microsecond, allowing a system-on-chip with new blocks to simplify drive control system development. 

The Fast Current Loop software is a free update available for C2000 controlSUITE software and includes software drivers for simultaneous current feedback from delta-sigma modulators, fluxgate/Hall, and direct shunt current sampling. A Position Manager provides on-chip support a variety of position sensors.

A sub-cycle pulse-width modulation (PWM) update techniques significantly improve control-loop bandwidths to potentially triple the motor torque response, while a new cycle-scavenging C2000 core needs only 460 nanoseconds for field-oriented control processing. A new complex controller replaces traditional proportional integration control and facilitates greater stability at higher speeds.

Developers can download the free new Fast Current Loop software on the DesignDRIVE solutions page. In addition, the C2000 DesignDRIVE development kit for industrial motor control (TMDXIDDK379D) includes the hardware for industrial motor control designs and can support two simultaneous Fast Current Loops as well as DesignDRIVE Position Manager technology.  The kit is also available in a reference design.

The C2000 Delfino TMS320F2837x family of MCUs for advanced control applications start at US$11.32 in 1,000-unit quantities, and the software will be available for the TMS320F2807x and TMS320F28004x C2000 Piccolo MCUs in the future. The DesignDRIVE development kit (TMDXIDDK379D) is available for $999. 

www.ti.com/tool/designdrive

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