This reference design realizes a reinforced isolated 3-phase inverter sub-system using isolated IGBT gate drivers and isolated current/voltage sensors. Precise in-line shunt based motor phase current sensing is done with AMC1306E25 delta sigma modulators. The modulator output is Manchester-encoded which simplifies the clock and data signal routing between the MCU and modulators. High CMTI of the modulator helps suppress the inverter switching noise transients from corrupting the data on the controller side. The small size of the modulator enables a compact solution. The TIDA-00914 provides an interface to connect to an external MCU or FPGA where digital SINC filters can be implemented to demodulate the AMC1306E25 output bitstream. This reference design uses the F28379D delfino control card which is connected to the reference design card through an adapter card to implement SINC filters for current sensing.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
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Design file that contains information on physical board layer of design PCB
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Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Reinforced Isolated Phase Current Sense Ref Design With Small Delta-Sigma Mods (Rev. A) | Apr. 20, 2018 | |
| E-book | Ein Techniker-Leitfaden für Industrieroboter-Designs | Mar. 25, 2020 | ||
| E-book | E-book: An engineer’s guide to industrial robot designs | Feb. 12, 2020 | ||
| White paper | 高精密度馬達驅動控制 推動產業升級 | Feb. 20, 2019 | ||
| White paper | High precision in motor drive control enables industrial advances | May 23, 2017 | ||
| Analog Design Journal | How delta-sigma ADCs work, Part 1 (Rev. A) | Sep. 19, 2016 | ||
| Analog Design Journal | How delta-sigma ADCs work, Part 2 | Nov. 09, 2011 |
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