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reference designLM5018 | Demoboard TIDM-02007

Texas Instruments LM5018 | Demoboard TIDM-02007

Dual-axis motor drive using fast current loop (FCL) and SFRA on a single MCU reference design

Overview

TopologyBuck Converter
Input voltage24 V
Output 128 V / 7 A

Description

This reference design presents a dual-axis motor drive using Fast Current Loop (FCL) and Software Frequency Response Analyzer (SFRA) technologies on a single C2000 controller. The FCL takes CPU and CLA parallel processing technique to achieve a substantial improvement in control bandwidth and phase margin, to reduce the latency between feedback sampling and PWM update, to achieve higher control bandwidth and maximum modulation index, to improve DC bus utilization by the drive and increase speed range of the motor. Integrated the SFRA tool enables developers to quickly measure the frequency response of the application to tune speed and current controllers. Given the system-level integration and performance of C2000 series MCUs have the ability to support dual-axis motor drive requirements simultaneously that delivers very robust position control with higher performance. The software is released within C2000Ware MotorControl SDK.

Features

  • Three-phase GaN inverter with wide-input voltage from - 12-V to 60-V and 7-Arms, 10-A peak output current per phase
  • Precision-phase current sensing with high accuracy (0.1%) based inline shunt resistor on BoosterPack.
  • Implement dual-axis motor drive with Fast Current Loop (FCL) on a single F2837x or F28004x MCU on the existing hardware kit.
  • Working software is compatible with F2837x or F28004x as a starting point for those with expertise or limited expertise.
  • Enables outer position and velocity loop, and inner torque loop using FCL technique simultaneously to achieve fast response on each motor.
  • Integrated SFRA tool to support tuning speed and current loops online separately.
  • Incremental system builds are designed to verify the major software modules used in the system.
  • Low PWM update latency (1.02 uS on F2837x, 2.02 us on F28004x) to achieve higher control bandwidth and modulation index.

Typical applications

  • Servo drive control module / Servo drive power stage module

More information

Products

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Order Code
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λDom typ.(nm)
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IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
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ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
fres(MHz)
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IR(mA)
Packaging
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
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150060GS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Green
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Downloads27 files

RAY files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Dominant Wavelength [typ.]525 nm
Emitting ColorGreen 
Peak Wavelength [typ.]515 nm
Luminous Intensity [typ.]430 mcd
Forward Voltage [typ.]3.2 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]140 °
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Size0603 
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PackagingTape and Reel 
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74279272
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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Size0402 
VersionSMT 
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Rated Current200 mA
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Impedance @ 100 MHz300 Ω
Maximum Impedance400 Ω
Maximum Impedance380 MHz 
Rated Current 2700 mA
DC Resistance0.8 Ω
TypeWide Band 
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7447709101
SPECWE-PD SMT Power Inductor, –, –

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
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Inductance100 µH
Saturation Current @ 10%3.1 A
Saturation Current @ 30%3.8 A
Rated Current2.5 A
Performance Rated Current3.2 A
Self Resonant Frequency4.3 MHz
Size1210 
VersionStandard 
Pins2 
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Rated Current2500 mA
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DC Resistance0.11 Ω
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60900213421
SPECWR-PHD Jumper, –, –
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Downloads3 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Pins1 
ColorBlack 
GenderJumper 
Rated Current3000 mA
PackagingBag 
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