Three phase UPS

Products and reference designs

Three phase UPS

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.

Three phase UPS

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

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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