Power factor correction (PFC) controllers
PFC controllers with the highest efficiency and lowest THD for high-voltage applications
Our PFC controllers offer the highest efficiency and lowest standby power and superior power factor and current distortion for switched-mode power supplies (SMPS). Meet challenging standards such as Department of Energy level VI and European Union Code of Conduct Tier 2. From critical conduction mode and transition mode to continuous conduction mode PFCs, we have them all.
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Single-phase transition mode (TM)
Use in low- and medium-power designs to deliver excellent light-load efficiency and low-power over all load conditions.
Single-phase critical conduction mode (CCM)
Use in medium- to high-power applications for a smaller footprint and easier layout options.
Power density
Minimize your solution size while maximizing your efficiency
Our PFC controllers offer higher switching frequency ranges for minimizing inductor size. Additionally, many solutions leverage burst mode to provide high light-load efficiency and eliminate the auxiliary flyback when paired with inductor-inductor-capacitor (LLC) or synchronous rectifier (SR) controllers. Our interleaved controllers enable multiphase design and parallelization for scalability.
Technical resources
Video series
Power factor correction (PFC) basics and design considerations
This video series discusses PFC basics, topology comparisons and design considerations to achieve a cost-optimized and efficient PFC design.
Application note
Optimizing Efficiency and Standby Power With the UCC28056 in Offline Application (Rev. B)
This note reviews the UCC28056x architecture and how features such as burst-mode empower designs to meet challenging modern power requirements.
More literature
PFC Controller Step-by-Step Selection Guide
This document provides an overview of PFC controllers and detailed information on how to select the right device for your application.
Discover featured applications
Power delivery
Enable high efficiency and power density with our low-cost, small-footprint, sophisticated PFC solutions
TV
Achieve low-profile designs with high power density, high efficiency and low total harmonic distortion (iTHD) with our PFC controllers
HEV/EV on-board charger (OBC) & wireless charger
Enable low-cost onboard charging solutions with faster development cycles with our automotive-qualified PFC controllers
Enable high efficiency and power density with our low-cost, small-footprint, sophisticated PFC solutions
In consumer electronic AC/DC power supplies, cost is often a primary design constraint. Our analog PFC controllers help you minimize common design and development costs ultimately improving your cost to market.
Benefits:
- A high switching frequency reduces inductor footprint and system bill of materials.
- Transitional mode operation minimizes power loss across the load with silicon field-effect transistors.
- Easier system design requires no firmware development.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
PRODUCTS
TECHNICAL RESOURCES
- Optimizing Efficiency and Standby Power With the UCC28056 in Offline Application (Rev. B) – Application note
- Optimizing PFC Standby Power Using the UCC28064A (Rev. A) – Application note
Achieve low-profile designs with high power density, high efficiency and low total harmonic distortion (iTHD) with our PFC controllers
As TVs increase in size while decreasing in width, our interleaved two-phase power factor correction controllers maximize power density and efficiency while minimizing standby power.
Benefits:
- Switching frequencies as high as 800 kHz enable a smaller inductor footprint (especially height).
- An interleaved design reduces the input current ripple and minimizes electromagnetic interference and iTHD.
- Transitional mode operation minimizes power loss across the load with silicon field-effect transistors.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
- TIDA-010015 – 94.5% Efficiency, 500W industrial AC-DC reference design
- PMP21366 – 700-W interleaving transition-mode PFC reference design
PRODUCTS
TECHNICAL RESOURCES
- Addressing the Need for the Next-Generation Interleaved Transition Mode PFC (Rev. A) – Application note
- Convert UCC28064A EVM to Higher Switching Frequency Using UCC28065 – Application note
Enable low-cost onboard charging solutions with faster development cycles with our automotive-qualified PFC controllers
While EV onboard charging applications frequently include digital controllers, our analog controller solutions offer advantages as well.
Benefits:
- Low-cost and low-power-consumption options are a good fit for two-wheelers, e-bikes and e-scooters.
- Easier system design requires no firmware development.
- Faster control loops enable a better transient load response.
Featured resources
END-EQUIPMENT / SUB-SYSTEM
REFERENCE DESIGNS
PRODUCTS
- UCC28070-Q1 – Automotive two-phase interleaved continuous conduction(CCM) mode PFC controller
- UCC2818A-Q1 – Automotive 6kHz to 220kHz CCM PFC controller with 10.5V/10V UVLO and smaller gate drive resistor
TECHNICAL RESOURCES
- Reducing Switching Losses in On-Board Chargers for Electric Vehicles – Application note
- PFC Design Choice for On Board Charger Designs – Application note
Design & development resources
Reference design
180-W universal input PFC + LLC TV power supply reference design
This AC to DC power supply design for TV application provides 12-V, 5-A and 150-V, 0.8-A output from universal AC voltage (90 Vac to 264 Vac). The design uses CRM/DCM PFC controller UCC28056, and LLC controller UCC256404 with enhanced burst mode which enabled for low standby power and smaller (...)
Evaluation board
300W interleaved PFC pre-regulator evaluation module
The pre-regulator uses the UCC28064 transition mode interleaved pfc controller to shape the input current wave to provide power factor correction. This device provides interleaved dual phase operation at high power levels, single phase operation at lower power levels and burst mode operation at (...)
Reference design
800-W High efficiency bridgeless Power Factor Correction (PFC) reference design
This reference design is a bridgeless PFC circuit using UCC28070 Interleaving CCM PFC controller to provide 390-V /2-A output from universal AC input. The circuit uses Average Current Mode PWM control with advanced internal current synthesizer for current sensing. This design achieves 96.57% peak (...)