STのPFC（力率改善）コントローラは、遷移モード（TM）と連続電流モード（CCM）で動作し、広範な電源の運用に適しています。CCMモードにおける高い電流性能と、遷移モードにおける低～中電力性能の両方を必要とするシステム向けに、STは特許を取得した独自ソリューションに基づく固定オフ･タイム（FOT）を提案しています。FOTは標準的な遷移モードPFCコントローラによる動作に簡単な変更と受動部品を加えたもので、少ないコストで実現します。
遷移モードPFCコントローラは全て、内部の総高調波歪率（THD）を大幅に減少させる内部乗算器を持っているため、高いSMPS効率によってEN61000-3-2やその他の省エネルギー規制に適合しています。
これらのデバイスには、SMPSの堅牢性を高め、小型化する先進的な保護機能が組み込まれているため、ほとんど外部部品を必要としません。また、保護機能には出力過電圧保護、電圧低下保護、フィードバック切断保護、およびブースト･インダクタ飽和保護が含まれます。
L6564HとL6563Hの高電圧起動機能は、補助電源を持たないシステムのSMPSスタンバイ効率を向上させます。
注目ビデオ
ST simplfies access to digital power advantages with configurable high efficiency interleaved PFC controller
Configurable high-efficiency interleaved PFC digital controller
ST has extended its portfolio of digital controllers with the STNRGPF01, a three-channel interleaved CCM PFC controller. Ideal for high power applications (above 1 kW), it delivers the flexibility and high efficiency of digital power without the technical challenges and time to develop custom DSP code. It can be easily and quickly configured using ST’s eDesignSuite online design environment. Simply enter the converter specs and run the configurator to generate the schematic, BoM, and downloadable firmware to configure the IC.
Main characteristics
- Up to 3-channel interleaved boost PFC
- Configurable phase-shedding strategy to maintain high efficiency across all load conditions
- Flexible frequency (up to 300 kHz) to control either an IGBT or MOSFET output stage
- I2C and UART interfaces for monitoring and control
- L6562AT Transition-mode PFC controller
- L6564 10 pin transition-mode PFC controller
- L6563 Advanced transition-mode PFC controller
- STNRGPF02 2-channel interleaved PFC driver with embedded digital inrush current limiter function
- STNRGPF12 2-channel interleaved PFC driver with embedded digital inrush current limiter function
- L6562 Transition mode
- L6563H High voltage start-up transition-mode PFC
- L6563S Enhanced transition-mode PFC controller
- L4984D CCM PFC CONTROLLER
- L6562A Transition-mode PFC controller BCD technology
- STNRGPF01 Three-channel interleaved CCM PFC digital controller
- L4981 L4981A: Fixed Frequency Average Current Mode; L4981B: Line Modulated Frequency Average Current Mode
- L6561 Transition mode power factor corrector
- L4985 Continuous conduction mode (CCM) PFC controller with high voltage startup
- L6564T 10 pin transition-mode PFC controller for outdoor applications
- L4986 Continuous conduction mode (CCM) PFC controller with high voltage startup and power good
- L6563A Advanced transition-mode PFC controller
- L6564H High voltage start-up transition-mode PFC
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Power Supply Design Tool
SMPS design, by topology, by type and by product PFC design with analog and digitial control Supports various PCB configurations 
LED Lighting Design Tool
Handles AC-DC and DC-DC design in common topologies Displays interactive and annotated schematic Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data 
Digital Power Workbench
Provides a step-by-step optimized design of power section and control loop Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs 
Power Tree Designer
Specify input/output power for each node in the tree Check for consistency Design each individual node