TIDA-00914

Reinforced Isolated Phase Current Sense Reference Design with Small Delta Sigma Modulators

Design files

TIDA-00914

Design files

Overview

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.

Features

Simplified clock routing to delta sigma modulators due to Manchester-encoded data output
Small pin count (8) enables compact solution
High CMTI of modulator (>50 kV/us) improves noise immunity to switching transients
Short circuit response time of less than 1.5 µs
Calibrated full scale accuracy of <0.5% across temperature range of 0^°C to 55^°C
Nominal phase current measurement range of 28 Arms and peak measurement range of +/-80 Apk

Industrial

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Design files & products

Design files

Download ready-to-use system files to speed your design process.

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Design guide — TIDA-00914

TIDUD07A.PDF (1856 KB)

Reference design overview and verified performance test data

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Assembly drawing — TIDA-00914

TIDRQQ5.PDF (540 KB)

Detailed overview of design layout for component placement

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Bill of materials (BOM) — TIDA-00914

TIDRQQ4A.PDF (40 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

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CAD/CAE symbol — TIDA-00914

TIDRQQ7A.ZIP (1704 KB)

Files used for 3D models or 2D drawings of IC components

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Gerber file — TIDA-00914

TIDCDD6.ZIP (460 KB)

Design file that contains information on physical board layer of design PCB

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PCB layout — TIDA-00914

TIDRQQ6.PDF (1968 KB)

PCB layer plot file used for generating PCB design layout

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Schematic — TIDA-00914

TIDRQQ3A.PDF (733 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

TLV704 — 150-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML

Noninverting buffers & drivers

SN74LVC1G17 — Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs

Data sheet: PDF | HTML

Isolated gate drivers

UCC5390 — 3kVrms/5kVrms, ±10A single-channel isolated gate driver with UVLO referenced to GND or split output

Data sheet: PDF | HTML

Isolated ADCs

AMC1306E25 — ±250-mV input, precision current sensing reinforced isolated modulator with Manchester code

Data sheet: PDF | HTML

Linear & low-dropout (LDO) regulators

TLV1117 — 800-mA, 15-V, linear voltage regulator

Data sheet: PDF | HTML

General-purpose op amps

TLV521 — Single, 5.5-V, 6-kHz, ultra-low quiescent current (350-nA), RRIO operational amplifier

Data sheet: PDF | HTML

Isolated gate drivers

UCC5310 — 3kVrms/5kVrms, 2A/1A single-channel isolated gate driver with miller clamp, 12V UVLO & D or DWV pkg

Data sheet: PDF | HTML

Isolated gate drivers

UCC5320 — 3k/5kVrms, 2A/2A single-channel isolated gate driver with UVLO referenced to GND or split output

Data sheet: PDF | HTML

Linear & low-dropout (LDO) regulators

LM3480 — 100-mA, 30-V, low-dropout voltage regulator

Data sheet: PDF | HTML

Start development

Hardware development

Daughter card

TMDSCNCD28379D — F28379D development kit for C2000™ Delfino MCU controlCARD™

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 (...)

EVM user’s guide: PDF | HTML

Supported products & hardware

Hardware development

Reference design

TIDA-00914 — Reinforced Isolated Phase Current Sense Reference Design with Small Delta Sigma Modulators

TIDA-010255 — 230VAC, 2kW three-phase GaN inverter reference design for robotics and servo drives

TIDA-01349 — IPM Interface Reference Design for Inverters Using Single Package Six Channel Digital Isolator

TIDA-01420 — Basic Isolated Three-Phase Compact Power Stage Reference Design for Industrial Drives

TIDA-01456 — Compact, Non-Isolated 3 Phase Inverter Reference Design for 200-480 VAC Industrial Drives

TIDA-01606 — 11-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design

TIDM-1000 — Vienna Rectifier-Based Three Phase Power Factor Correction Reference Design Using C2000 MCU

TIDM-HV-1PH-DCAC — Single-phase inverter reference design with voltage source and grid connected modes

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TMDSCNCD28379D — F28379D development kit for C2000™ Delfino MCU controlCARD™

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