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STMicroelectronics STNRGPF01 | Demoboard STEVAL-IPFC01V1

3 kW three-channel interleaved PFC based on the STNRGPF01 digital controller

Overview

TopologyPower Factor Correction
Input voltage90-265 V
Output 1400 V / 13 A
IC revisionRev 1

Description

The STNRGPF01 is a digital controller designed specifically for interleaved PFC boost topologies and intended for use in high power applications.The controller is capable of driving up to 3 interleaved channels, generating the proper signals in each condition. Moreover, it implements a flexible phase shedding strategy that enables the correct number of PFC channels based on the actual load condition. With this function, the STNRGPF01 is always able to guarantee the highest power efficiency across a wide range of load current requirements.The device works in CCM at fixed frequency with average current mode control, and implements mixed signal (analog/digital) control. The inner current loop is performed by hardware, ensuring cycle-by-cycle regulation. The outer voltage loop is performed by a digital PI controller with fast dynamic response.The controller implements several functions: inrush current control, soft start-up, burst mode cooling management and status indicators.It also features a full set of embedded protections against overvoltage, overcurrent, and thermal faults.The STNRGPF01 is configured through a visual dedicated software tool (eDesignSuite) to match a wide range of specific applications. Using eDesignSuite, the user can customize the PFC conversion configuration and all the relevant electrical components. As a result, the tool will automatically generate a full schematic which includes a complete list of material and the final binary object code (FW) to be downloaded to the STNRGPF01.

Features

  • Input voltage range: 90 to 265 VAC
  • Line frequency range: 47 to 63 Hz
  • Maximum output power: 3 kW at 230 V
  • Output voltage: 400 V
  • Power factor: > 0.98 at 20% load
  • Total Harmonic Distortion: <5% at 20% load
  • Mixed-signal average current mode control, CCM fixed frequency operation
  • Switching Frequency: 111 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
  • Inrush current limiter function
  • Cooling function

Typical applications

  • air conditioner
  • UPS / power supplies
  • welding, industrial motors
  • 3 kW interleaved PFC refdesign based on a digital controller and includes a separate power board, control board and programming board
  • battery chargers

Products

Order Code Data­sheet Downloads Product seriesL1
(µH)
ISAT1
(A)
RDC 1
(Ω)
IR 1
(mA)
L
(mm)
W
(mm)
H
(mm)
MountZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeIR
(mA)
L
(mH)
VR
(V (AC))
VT
(V (AC))
Samples
750316867
MID-PFC Inductors for Power Factor Correction 125 12 0.033 35.56 37.34 34.29 THT 1875
74279262
STE ALT EAG CAD LTS PSP IGS CAD SPAWE-CBF SMT EMI Suppression Ferrite Bead 500 1.6 0.8 0.8 SMT 120 200 510 MHz 1350 0.3 Wide Band 1350
7448051804
STE ALT EAG CAD LTS PSP IGS CAD SPAWE-CMBNC Common Mode Power Line Choke Nanocrystalline 36 23 34 THT 0.0042 18000 4.5 250 1500
750318675
Offline Transformer
Order Code Data­sheet
750316867
74279262
7448051804
750318675
Samples
Order Code Data­sheet Downloads Product seriesL1
(µH)
ISAT1
(A)
RDC 1
(Ω)
IR 1
(mA)
L
(mm)
W
(mm)
H
(mm)
MountZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
TypeIR
(mA)
L
(mH)
VR
(V (AC))
VT
(V (AC))
Samples