Two-Phase Interleaved Power Factor Correction Converter Reference Design with Power Metering


Design files


This design is a digitally controlled, two phase interleaved, 700W power factor correction converter with added power metering functionality. A C2000™ Piccolo™ microcontroller is the controller for the two 180° phase shifted boost power stages that comprise the power factor correction converter, and, additionally, it monitors the line and neutral voltage waveforms to implement power metering functions. This design is able to achieve 97% efficiency and 1.5% THD at full load with power factor greater than 0.98. By minimizing power loss in the power stage, reducing reliability impacts of harmonic distortion, and providing near unity power factor, this design is a great choice for off-line applications and AC/DC power supplies.

  • Full digital control of dual interleaved PFC power converter topology
  • Universal input of 95 VAC to 265 VAC
  • 400 VDC bus output operating up to 700 W
  • Power Factor of 0.99 at 200 KHz switching frequency and 1.5% THD at full load
  • Supports power monitoring of rectified input voltage, RMS input voltage, RMS input power, and input line frequency
  • Fully-functional evaluation board includes software, hardware design files, quick start graphical interface and step-by-step documentation.

NOTE: Software for this board can be found inside the controlSUITE™ software package. Download controlSUITE at https://www.ti.com/tool/controlsuite. Once installed, navigate to "High Voltage Interleaved PFC Kit" under the Development Tools -> Digital Power section.

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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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

TIDU249.PDF (1115 K)

Reference design overview and verified performance test data

TIDC311.ZIP (198 K)

Detailed schematic diagram for design layout and components

TIDR447.PDF (200 K)

Detailed schematic diagram for design layout and components

TIDR446.PDF (98 K)

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


Includes TI products in the design and potential alternatives.

C2000 real-time microcontrollers

TMS320F28035C2000™ 32-bit MCU with 60 MHz, 128 KB flash, CLA

Data sheet: PDF
C2000 real-time microcontrollers

TMS320F28035-Q1Automotive C2000™ 32-bit MCU with 60 MHz, 128 KB flash, CLA

Data sheet: PDF
Low-side drivers

UCC275245-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Two-Phase Interleaved PFC Converter w/ Power Metering Test Results Design Guide Apr. 25, 2014
Technical article Untangling electric vehicle chargers – Level 3 Apr. 18, 2016
Technical article Do more in digital power, from line to load, with three new TI Designs May 20, 2014
More literature Two-Phase Interleaved PFC Converter w/ Power Metering Quick Start Guide Apr. 25, 2014
More literature Quick, Low-Cost Access to Industry Leading PFC Performance Feb. 22, 2013

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