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Based on STNRGPF02 digital controller, 2kW dual-channel interleaved PFC reference design

STEVAL-IPFC02V1, STGW20H65FB, STPSC12065D

Overview

The STEVAL-IPFC02V1 2 kW interleaved PFC reference design combines the performance of analog cycle-by-cycle current regulation with the flexibility of digital control to generate sinusoidal power supplies with very high power factor and very low harmonic distortion.

The digital power control is based on the STNRGPF0 digital PFC controller, which operates in CCM at a fixed frequency with average current mode control and can drive two interleaved PFC channels with mixed (analog and digital) signals.
This 2 kW interleaved PFC reference design includes a power board with dual-channel interleaved CCM boost power stage, auxiliary power supply, a control board with embedded STNRGPF02 digital controller, and a small adapter board for programming the STNRGPF02 .
You can use the eDesignSuite software tool (available on the STMicroelectronics website) to configure the STNRGPF02 according to your design requirements for each interleaved PFC.

Main features

Input voltage range: 90 to 265 V _AC
Line frequency range: 47 to 63 Hz
Maximum output power: 2 kW/230 V
Inrush current suppressor
Output voltage: 400 V
Power factor: > 0.98 at 20% load
Total harmonic distortion:
Mixed signal average current mode control, CCM fixed frequency operation
Switching frequency (fsw): 60 kHz
Cycle-by-cycle adjustment (simulated current loop)

Input voltage and load feed forward
Tangential
Current sharing
Burst mode operation
Overvoltage protection
Over current protection
Thermal Protection
Status indication LED
cooling function

Design Files

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