Features

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Line frequency range: 47 to 63 Hz

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Maximum output power: 2 kW at 230 V

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Digital Inrush Current Limiter function performed with SCR

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Output voltage: 400 V

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Power factor: > 0.98 at 20% load

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Total Harmonic Distortion: <5% at 20% load

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Mixed-signal Average Current Mode control, CCM fixed frequency operation

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Cycle-by-cycle regulation (analog current control loop)

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Input voltage and load feed-forwards

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Phase shedding

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Current balance

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Burst-mode operation

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Overvoltage protection

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Overcurrent protection

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Thermal protection

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Status indicator LEDs

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Cooling function

Description

The STEVAL-IPFC12V1 2 kW interleaved PFC reference design features the

performance of analog cycle-by-cycle current regulation and the flexibility of digital

control to generate sinusoidal supplies with very high power factor and very low

harmonic distortion.

Digital power control is based on the STNRGPF12 digital PFC controller, which in

combination with the TN3050H-12WY thyristor implements digital inrush current

limitation, and can drive up to two interleaved PFC channels using mixed signal

(analog and digital) average current mode control in CCM at fixed frequency.

The 2 kW interleaved PFC reference design consists of a power board with 2-ch

interleaved CCM boost power stage, input rectifier controlled bridge and auxiliary

power supply, a control board with embedded STNRGPF12 digital controller and

analog control circuitry, and a USB to UART (FTDI cable required - not included in

the kit) bridge for programming the STNRGPF12 and performance monitoring.

You can use the eDesignSuite software available on the ST website to configure the

STNRGPF12 according to specific design requirements for each interleaved PFC.

Product summary

2 kW two-channel

interleaved PFC

based on the

STNRGPF12 digital

controller

STEVAL-IPFC12V1

two-channel

interleaved CCM

PFC digital

controller

STNRGPF12

automotive-grade

SCR Thyristor

TN3050H-12WY

high voltage rectifier

for bridge

applications

STBR3012

trench gate field-

stop IGBT

STGW20H65FB

power Schottky

silicon carbide diode

STPSC12065D

Application

PFC Converter -

Single Phase Input

Articles

Digital PFC blog

article

2 kW two-channel interleaved PFC reference design based on the STNRGPF12

digital controller with digital inrush current control

STEVAL-IPFC12V1

Data brief

DB3882 - Rev 2 - August 2019

For further information contact your local STMicroelectronics sales office.

www.st.com