STMicroelectronics STEVAL-IPFC02V1 PFC Kit

STMicroelectronics STEVAL-IPFC02V1 PFC Kit evaluates STNRGPF02 digital controller that is designed specifically for interleaved PFC boost topologies. This development kit features the performance of analog cycle-by-cycle current regulation and the flexibility of digital control. This is to generate sinusoidal supplies with a high power factor and very low harmonic distortion. The STEVAL-IPFC02V1 kit consists of a power board with 2-channel interleaved CCM-boost power stage, auxiliary power supply, and a control board with embedded STNRGPF02 digital controller. Additionally, it also includes a small adapter board for programming the STNRGPF02. 

The STEVAL-IPFC02V1 PFC kit incorporates cooling function, inrush current limiter, and 47Hz to 63Hz line frequency range with 2kW at 230V maximum output power. This PFC reference design kit offers the burst-mode operation, overvoltage protection, overcurrent protection, and thermal protection features. The aim of this reference design is to provide a flexible PFC converter that can accept a wide input range (90V-265V) for high power (>600W) applications.

Features

  • 2kW interleaved PFC evaluation kit 
  • Modular design with the following separate boards:
    • STEVAL-IPFC02P1 power board
    • STEVAL-IPFC02C1 control board
    • STEVAL-IPFC01A1 adapter board
  • 90VAC to 265VAC input voltage range
  • 47Hz to 63Hz line frequency range
  • 2kW at 230V maximum output power
  • 400V output voltage
  • Power factor:
    • >0.98 at 20% load
  • Total harmonic distortion:
    • <5% at 20% load
  • Mixed-signal average current mode control and CCM fixed frequency operation
  • 60kHz switching frequency (fsw)
  • Cycle-by-cycle regulation (analog current control loop)
  • Digital inrush current limiter function performed with relay
  • Input voltage and load feed-forwards
  • Programmable phase shedding
  • Channel current balance function
  • Burst-mode operation
  • Overvoltage protection
  • Overcurrent protection
  • Thermal protection
  • Soft startup and burst mode management
  • Load current and input voltage feed-forward
  • Two status LEDs to signal nominal and fault conditions
  • Cooling function

Block Diagram

Block Diagram - STMicroelectronics STEVAL-IPFC02V1 PFC Kit

STMicroelectronics STEVAL-IPFC02V1 PFC Kit