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IC manufacturers Texas Instruments

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reference designTLV70450DBVR | Demoboard TIDA-01606 Power Card

Texas Instruments TLV70450DBVR | Demoboard TIDA-01606 Power Card

10kW 3-Phase 3-Level Grid Tie Inverter Reference Design for Solar String Inverter

Overview

TopologyOther Topology
IC revisionE4

Description

This verified reference design provides an overview on how to implement a three-level three-phase SiC based DC:AC grid-tie inverter stage.Higher switching frequency of 50KHz reduces the size of magnetics for the filter design and enables higher power density. The use of SiC MOSFETs with switching loss ensures higher DC bus voltages of up to 1000V and lower switching losses with a peak efficiency of 99 percent. This design is configurable to work as a two-level or three-level inverter.The system is controlled by a single C2000 microcontroller (MCU), TMS320F28379D, which generates PWM waveforms for all power electronic switching devices under all operating modes.

Features

  • Rated Nominal and Max Input Voltage at 800-V and 1000-V DC
  • Max 10-kW/10-kVA Output Power at 400-V AC 50- or 60-Hz Grid-Tie Connection
  • Operating Power Factor Range From 0.7 Lag to 0.7 Lead
  • High-Voltage (1200-V) SiC MOSFET-Based FullBridge Inverter for Peak Efficiency of 98.5%
  • Compact Output Filter by Switching Inverter at 50 kHz
  • <2% Output Current THD at Full Load
  • Isolated Driver ISO5852S With Reinforced Isolation for Driving High-Voltage SiC MOSFET and UCC5320S for Driving Middle Si IGBT
  • Isolated Current Sensing Using AMC1301 for Load Current Monitoring
  • TMS320F28379D Control Card for Digital Control

Typical applications

  • Zigbee® Networks
  • Ultralow Power Microcontrollers
  • Handset Peripherals / Portable, Battery-Powered Equipment
  • E-Meters / Fire Alarms and Smoke Detector Systems / Industrial and Automotive Applications

More information

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λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
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150060VS55040
SPECWL-SMCD SMT Mono-color Chip LED Diffused, 573 nm, Bright Green
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Availability
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Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWL-SMCD SMT Mono-color Chip LED Diffused
Dominant Wavelength [typ.]573 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]575 nm
Luminous Intensity [typ.]60 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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742792662
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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Impedance @ 100 MHz1000 Ω
Maximum Impedance1050 Ω
Maximum Impedance120 MHz 
Rated Current 2830 mA
DC Resistance0.3 Ω
TypeWide Band 
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