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UPS - three phase

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Block diagram

UPS - three phase

Block diagram

Overview

Our integrated circuits and reference designs for three-phase uninterruptable power supplies (UPS) help you design reliable and robust hardware with very low input and output total harmonic distortion (THD) and increased efficiency.

Design requirements

Modern three-phase UPS designs often require:

  • Higher performance and reliable IGBT and MOSFET gate drivers.
  • Innovative battery backup designs with highly-efficient bidirectional topologies.
  • Accurate sensing of voltage and current with or without isolation.
  • Lower THD over wide-load conditions using front-end power factor correction.
Explore applications similar in function and design

Block diagram

Find products and reference designs for your system.

UPS - three phase

AC Line (Output) AC Line(Output) AC Line (Input) AC Line(Input) Interface board Interface board ADC ADC Switch Switch Opamp Opamp MUX MUX DC Bus Current & Voltage DC Bus Current & Voltage Battery current & voltage Battery current & voltage Input/ Output Current & Voltage Input/ Output Current & Voltage Gate Drive from Control Card Gate Drive from Control Card Gate Drive from Control Card Gate Drive from Control Card Relays Relays Current & voltage sense Current & voltage sense Vref Vref Opamp Opamp Comp Comp Wireless interface Wireless interface WiFi WiFi AC Input AC Input DC Bus DC Bus Input contactors Input contactors Solenoid Driver Solenoid Driver Contactor Contactor Inverter power stage Inverter power stage Iso. Gate Driver Iso. Gate Driver Temp Sensor Temp Sensor IGBTs IGBTs Isolated power supply for gate driver Isolated power supply for gate driver LV FET LV FET PWM Controller PWM Controller LDO LDO Status LEDs Status LEDs LCD Display LCD Display Key-Pad Key-Pad Wired communication interface Wired communication interface Protection Protection Isolator Isolator RS 232/485 RS 232/485 CAN CAN I2C I2C Ethernet Ethernet USB USB Processor Processor Control card Control card MCU MCU Logic Logic Relay Driver Relay Driver Supervisor & Reset Supervisor & Reset Memory Memory Crystal Crystal HMI block HMI block LED Driver LED Driver LCD Driver LCD Driver Backlight Backlight IO Expander IO Expander Protection Protection Processor Processor Battery stack Battery stack Temp Sensor Temp Sensor Cell Monitoring & Gauging Cell Monitoring & Gauging Battery Battery Battery charger power stage Battery charger power stage Iso. I sense Iso. I sense Gate Driver Gate Driver HV FET HV FET Output contactors Output contactors Solenoid Driver Solenoid Driver Contactor Contactor Auxiliary power supply Auxiliary power supply PWM Controller PWM Controller LDO LDO HV FET HV FET DC-DC converter DC-DC converter Vref Vref Isolated DC/DC for communication Interface Isolated DC/DC for communication Interface LV FET LV FET PWM Controller PWM Controller LDO LDO PFC power stage PFC power stage Iso. Gate Driver Iso. Gate Driver Temp Sensor Temp Sensor IGBTs IGBTs

Inverter power stage

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The inverter stage regenerates a sinusoidal output AC voltage, within strict amplitude and frequency tolerances, from a regulated high voltage DC input.

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Power management (18)
Isolated gate drivers
  • UCC23113—4A/5A single-channel opto-compatible isolated gate driver with functional isolation (1.2kVRMS)
    Data sheet: PDF | HTML
  • UCC23525—5A/5A, 5.7kVRMS, reinforced single-channel opto-compatible isolated gate driver with 12V UVLO
    Data sheet: PDF | HTML
  • UCC5350—5A/5A single-channel isolated gate driver with Miller clamp or split outputs and 8V or 12V UVLO
    Data sheet: PDF | HTML
  • UCC23514—5kVrms 4A/5A, single-channel opto-compatible isolated gate driver w/ clamp & split output options
    Data sheet: PDF | HTML
  • ISO5451—5.7kVrms, 2.5A/5A single-channel isolated gate driver with active protection features
    Data sheet: PDF | HTML
  • ISO5852S—5.7kVrms, 2.5A/5A single-channel isolated gate driver w/ split output, STO & protection features
    Data sheet: PDF | HTML
Isolated power modules (integrated transformer)
  • UCC33420—5V/5V 1.5W 3kVrms isolated DC-DC module with integrated transformer
    Data sheet: PDF | HTML
  • DCH010505S—Miniature, 1W, 3kVDC Isolated DC/DC Converters
    Data sheet: PDF | HTML
Low-side drivers
  • UCC27614—10-A/10-A single-channel gate driver with 4-V UVLO, 30-V VDD and low prop delay
    Data sheet: PDF | HTML
  • UCC27528—5-A/5-A dual-channel gate driver with 5-V UVLO, CMOS inputs, and enable
    Data sheet: PDF | HTML
  • UCC27517A—4-A/4-A single-channel gate driver with 5-V UVLO and negative input voltage handling
    Data sheet: PDF | HTML
  • SN75374—10-mA/40-mA 4-Channal gate driver with Two NAND inputs for each output
    Data sheet: PDF | HTML
  • UCC27324—Non-inverting 4-A/4-A dual-channel low side gate driver
    Data sheet: PDF | HTML
  • UCC27624—5A/5A dual-channel gate driver with 4V UVLO, 30V VDD and low propagation delay
    Data sheet: PDF | HTML
Gallium nitride (GaN) power stages
  • LMG3650R025—650V 25mΩ TOLL-packaged GaN FET with integrated driver, protection and zero-voltage detection
    Data sheet: PDF | HTML
  • LMG3422R030—600-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting
    Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)
  • TPS55010—2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS
    Data sheet: PDF | HTML
  • UCC28180—18-kHz-250-kHz CCM PFC controller with enhanced startup & transient response
    Data sheet: PDF | HTML
Sensors (8)
Analog temperature sensors
  • TMP235—1C analog temperature sensor, 10 mV/C
    Data sheet: PDF | HTML
  • LMT87—±2°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain
    Data sheet: PDF | HTML
  • LM50—±2°C analog output temperature sensor, with 10mV/°C gain
    Data sheet: PDF | HTML
  • LM35—1C high voltage analog temperature sensor, 10 mV/C
    Data sheet: PDF | HTML
Digital temperature sensors
  • LMT01-Q1—Automotive Grade, 0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface
    Data sheet: PDF | HTML
  • LM75B—±2°C, 3.0V to 5.5V industry standard temperature sensor with I2C/SMBus interface
    Data sheet: PDF | HTML
  • TMP103—±2°C Digital temperature sensor with I2C/SMBus capable of 1.4V in WCSP
    Data sheet: PDF | HTML
  • LMT01—0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface
    Data sheet: PDF | HTML
  • TIDA-00181—Isolated IGBT Gate-Drive Push-Pull Power Supply with 4 Outputs
    Design guide: PDF Schematic: PDF
  • TIDA-00195—Isolated IGBT Gate Driver Evaluation Platform for 3-Phase Inverter System Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-00366—Reference design for reinforced isolation 3-phase inverter with current, voltage and temp protection
    Design guide: PDF Schematic: PDF
  • TIDA-00446—Small Form-Factor Reinforced Isolated IGBT Gate Drive Reference Design for 3 Phase Inverter
    Design guide: PDF Schematic: PDF
  • TIDA-00448—Flexible High Current IGBT Gate Driver with Reinforced Digital Isolator Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-010210—11-kW, bidirectional, three-phase ANPC based on GaN reference design
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-01159—Compact, Half-Bridge, Reinforced Isolated Gate Drive Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-01606—11-kW, bidirectional three-phase three-level (T-type) inverter and PFC reference design
    Design guide: PDF | HTML Schematic: PDF

Technical documentation

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Type Title Date
Technical article Do you have the correct PFC to meet the new standard of harmonic current emissions 30 Jun 2023
White paper Understanding failure modes in isolators (Rev. B) PDF | HTML 29 Jan 2024
White paper Impact of an isolated gate driver (Rev. A) 28 Feb 2019
Application brief Anschluss eines Differenzialausgangsverstärkers (isoliert) an einen A/D-Wandler mit unsymmetrischem Eingang (Rev. B) PDF | HTML 27 Jun 2024
Application brief 단일 종단 입력 ADC에 차동 출력(절연) 증폭기 인터페이싱 (Rev. B) PDF | HTML 27 Jun 2024
Technical article Simplify your power storage design with these Fly-Buck™ power tips PDF | HTML 27 Jun 2023
Technical article Power Tips: Improve power supply reliability with high voltage GaN devices PDF | HTML 27 Jul 2023
Analog Design Journal Pushing the envelope with high-performance digital-isolation technology (Rev. A) 22 Aug 2018
Application note Bidirectional DC-AC Solution in Solar Application System based on TMS320F28035 21 May 2017
White paper 設計準確且多功能的鋰離子 電池測試解決方案 20 Nov 2020
Technical article How to achieve higher system efficiency- part one: high-current gate drivers PDF | HTML 20 Jun 2023
White paper Voltage-reference impact on total harmonic distortion 19 Sep 2016
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 14 Apr 2023
White paper High-voltage reinforced isolation: Definitions and test methodologies 12 Aug 2019
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) 10 May 2022
White paper Fully integrated signal and power isolation – applications and benefits 04 Apr 2017
White paper Designing an Accurate, Multifunction Lithium-Ion Battery-Testing Solution 03 Dec 2020
Analog Design Journal Common-mode transient immunity for isolated gate drivers 02 Nov 2015
Application brief Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML 02 Jun 2023
Application brief Interfacing a Differential-Output (Isolated) Amp to a Single-Ended Input ADC (Rev. B) PDF | HTML 02 Jun 2023

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