Valley switching boost power factor correction (PFC) reference design

(ACTIVE) TIDM-1022

Description & Features

Technical Documents

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Key Document

Description

This reference design illustrates a digital control method to significantly improve Boost Power Factor Correction (PFC) converter performance such as the efficiency and Total Harmonic Distortion (THD) under light load condition where efficiency and THD standards are difficult to meet. This is achieved using the integrated digital control feature of the Piccolo™ F280049 microcontroller (MCU). The design supports phase shedding, valley switching, valley skipping, and Zero Voltage Switching (ZVS) for different load and instantaneous input voltage conditions. The software available with this reference design accelerates time to market.

Features
  • Interleaved, 750 W, Two-Phase Boost PFC Stage.  Full Range Parameter: 95–260 Vrms, 47–63 Hz
  • 200-kHz Switching Frequency Under Normal Conditions (Load > 10%)
  • 140–330-kHz Variable Pulse Width Modulation (PWM) Switching Under Light Load (<10%)
  • Programmable Valley Switching and Valley Skipping
  • Low THD: 6% at 5% Load (Low Line); 7% at 5% Load (High Line)
  • High Efficiency > 92% at 5% Load

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Schematic/Block Diagram

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Design Guide

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Bill of Materials (BOM)

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TI Devices (5)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA365  2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G3157  1-channel, 2:1 analog switch  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TMS320F280049  Piccolo™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB Flash, CLA, PGAs, SDFM  C2000 real-time control MCUs  Not Available View Design Kits & Evaluation Modules
TPS795  Ultralow-Noise, High-PSRR, Fast, RF, 500-mA Low-Dropout Linear Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC27524  Dual, 5A, High-Speed Low-Side Power MOSFET Driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA365 Download Download
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SN74LVC1G3157 Download Download
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TMS320F280049 Download -
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TPS795 Download
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UCC27524 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date
PDF 3306 23 Oct 2018
User guides (3)
Title Abstract Type Size (KB) Date
PDF 4897 03 Nov 2018
PDF 14604 02 Mar 2018
PDF 40 09 Jan 2018
Design files (2)
Title Abstract Type Size (KB) Date
PDF 32 13 Nov 2018
PDF 98 06 Mar 2014
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
Two-Phase Interleaved Power Factor Correction Converter with Power Metering  TIDM-2PHILPFC  TI Designs

Design Kits & Evaluation Modules  ( 2 )

Name Part Number Tool Type
180 to 100 Pin DIMM Adapter  TMDSADAP180TO100  Evaluation Modules & Boards 
F280049C controlCARD Evaluation Module  TMDSCNCD280049C  Evaluation Modules & Boards 

Software (1)

Name Part Number Software Type
DigitalPower Software Development Kit (SDK) for C2000 MCUs  C2000WARE-DIGITALPOWER-SDK  Software Development Kits (SDK) 


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