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COOMING SOON: 250Wpk DEMO BOARD!

FEATURES

  • Wide input mains range: 90Vac – 265Vac, frequency 45Hz – 55Hz
  • PFC-LESS technology
  • Output voltage: 24V at 4A continuous operation
  • Safety: meets EN60950
  • EMI: pre-compliant to EN55022 (B) limits
  • Dimensions: 90mm x 90mm x 48mm
  • PCB: double-side, 70µm, FR4, mixed PTH/SMD

DESCRIPTION
This demonstration board implements an offline power converter based on a single stage architecture. Topology is a LLC resonant half bridge converter using the ST Microelectronics L6699A resonant controller. The board is optimized to balance performances and manufacturing costs, thus having both high efficiency and suitable no load consumption with an overall reduced component count and variability. Conducted EMI also have been screened and mitigated, and clearances and creepage distances have been kept to pre-comply with EN60950 for safety. The board is protected against output short-circuit and input mains drops to prevent malfunction.
Main applications for this converter are:

  • Industrial power supply
  • Vending machines
  • Gate openers

Support will be given to customers willing to develop their own version of this converter, as long as technical documentation including functional and thermal measurements. PCB layout (gerber or source version) could be supplied upon request.
The board has been developed with the following magnetic components:

  • 1860.0154 – SMT 100W 80kHz 200μH 24V
  • 2258.0001 – CMC 2x20mH

Download the brochure here.