TIDM-1022

Valley switching boost power factor correction (PFC) reference design

TIDM-1022

Design files

Overview

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

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.

TIDUEG3A.PDF (4726 K)

Reference design overview and verified performance test data

TIDRXQ2.PDF (32 K)

Detailed schematic diagram for design layout and components

TIDR446.PDF (98 K)

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

Products

Includes TI products in the design and potential alternatives.

C2000 real-time microcontrollers

TMS320F280040-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 128-KB flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280040C-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 128-KB flash, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041C2000™ 32-bit MCU with 100-MHz, FPU, TMU, 128-kb flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 128 KB flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041CC2000™ 32-bit MCU with 100-MHz, FPU, TMU, 128-kb flash, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280041C-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 128 KB flash, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280045C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB flash, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280048-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB flash, CLA, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280048C-Q1Automotive C2000™ 32-bit MCU w/ 100 MHz, FPU, TMU, 256 KB flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049C2000™ 32-bit MCU with 100-MHz, FPU, TMU, 256-kb Flash, CLA, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049-Q1Automotive C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB flash, CLA, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049CC2000™ 32-bit MCU with 100-MHz, FPU, TMU, 256-kb Flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F280049C-Q1Automotive C2000™ 32-bit MCU w/ 100 MHz, FPU, TMU, 256 KB flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet document-pdfAcrobat PDF
Analog switches & muxes

SN74LVC1G31575-V, 2:1 (SPDT), 1-channel general-purpose analog switch

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

OPA3652.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS795500-mA, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Low-side drivers

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

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Valley Switching Boost PFC Reference Design Using C2000™ MCU (Rev. A) Apr. 01, 2020
Application note The Essential Guide for Developing With C2000 Real-Time Microcontrollers (Rev. D) Sep. 14, 2021
User guide TMS320F28004x Real-Time Microcontrollers Technical Reference Manual (Rev. D) Sep. 29, 2020

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Software development

SOFTWARE DEVELOPMENT KIT (SDK)
C2000WARE-DIGITALPOWER-SDK DigitalPower software development kit (SDK) for C2000™ MCUs

Reference designs

REFERENCE DESIGN
TIDM-2PHILPFC Two-Phase Interleaved Power Factor Correction Converter Reference Design with Power Metering

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