2kW dual-channel interleaved PFC reference design based on digital controller STNRGPF12 with digital inrush current control

STEVAL-IPFC12V1

Overview

The STEVAL-IPFC12V1 2 kW interleaved PFC converter kit provides very high power factor supply power with very low harmonic distortion and features advanced dynamic performance and condition monitoring, including analog cycle-by-cycle current regulation.

Digital functionality is based on the STNRGPF12 digital PFC controller, which features digital inrush current control and can drive up to two interleaved PFC channels with mixed signal (analog/digital) average current mode control in CCM at fixed frequency.
You can use the eDesignSuite software available on the ST website to configure the STNRGPF12 according to your design requirements for each interleaved PFC.

Main features

The 2 kW interleaved PFC evaluation kit features:
- STEVAL-IPFC12P1 power board
- STEVAL-IPFC12C1 control board
- STEVAL-IPFC01A1 adapter board
Input voltage range: 90 to 265 V_AC
Line frequency range: 47 to 63 Hz
Maximum output power: 2 kW at 230 V
Digital Inrush Current Limiter function performed with SCR
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 (f_sw): 60 kHz
Cycle-by-cycle regulation (analog current control loop)
Input voltage and load feed-forwards
Phase shedding
Burst-mode operation
Overvoltage protection
Thermal protection
Status indicator LEDs
Cooling function

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-09 02:47:46

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