TMS320F28379D Datasheet, PDF (197/212 Pages) Texas Instruments – Dual-Core Delfino Microcontrollers

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TMS320F28379D, TMS320F28377D
TMS320F28376D, TMS320F28375D, TMS320F28374D
SPRS880F – DECEMBER 2013 – REVISED NOVEMBER 2015
7 Applications, Implementation, and Layout
NOTE
Information in the following sections is not part of the TI component specification, and TI
does not warrant its accuracy or completeness. TI’s customers are responsible for
determining suitability of components for their purposes. Customers should validate and test
their design implementation to confirm system functionality.
7.1 TI Design or Reference Design
7.1.1 Industrial Servo Drive and AC Inverter Drive Reference Design
TIDM-SERVODRIVE — The DesignDRIVE Development Kit is a reference design for a complete
industrial drive directly connecting to a three-phase ACI or PMSM motor. Many drive topologies can be
created from the combined control, power, and communications technologies included on this single
platform. This platform includes multiple position sensor interfaces, diverse current sensing techniques,
hot-side partitioning options, and expansion for safety and industrial Ethernet.
7.1.2 Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives
TIDA-00171 — This evaluation kit and reference design implement the AMC130x reinforced isolated delta-
sigma modulators along with integrated Sinc filters in the C2000 TMS320F28377D Delfino microcontroller.
The design provides an ability to evaluate the performance of these measurements: three motor currents,
three inverter voltages, and the DC Link voltage. Provided in the kit is firmware to configure the Sinc
filters, set the PLL frequency, and receive data from Sinc filters. A versatile run-time GUI is also provided
to help the user validate the AMC130x performance and supports configuration changes to Sinc filter
parameters in the Delfino controller.
7.1.3 Isolated, Shunt-Based Current Sensing Reference Design
TIPD165 — This Verified TI Design implements an isolated current sensing data acqusition solution based
on the AMC1304M25 isolated delta-sigma (ΔΣ) modulator and a TMS320F28377D microcontroller. This
circuit was designed for shunt-based current measurement applications, which require excellent galvanic
isolation and accuracy, such as industrial motor drives, photovoltaic inverters, and energy metering. It is
capable of measuring load currents from –10 A to +10 A with better than 0.3% uncalibrated accuracy, and
it also provides dual functionality of a high-resolution channel and an additional overcurrent or short-circuit
detection channel. The design’s functionality and performance were verified against the circuit design
goals by fabricating three PCBs and measuring results for dc and ac input signals.
7.1.4 Differential Signal Conditioning Circuit for Current and Voltage Measurement Using
Fluxgate Sensors
TIDA-00201 — This design provides a 4-channel signal conditioning solution for differential ADCs
integrated into a microcontroller measuring motor current using fluxgate sensors. Also provided is an
alternative measurement circuit with external differential SAR ADCs as well as circuits for high-speed
overcurrent and earth fault detection. Proper differential signal conditioning improves noise immunity on
critical current measurements in motor drives. This reference design can help increase the effective
resolution of the analog-to-digital conversion, improving motor drive efficiency.
Copyright © 2013–2015, Texas Instruments Incorporated
Applications, Implementation, and Layout 197
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