2.7W dual output non-isolated power supply circuit designed with LNK363PN

Summary:

Because energy-efficient power supplies generate less heat, they can be used in harsh environments, such as white-light appliances that typically have higher ambient temperatures. Typical temperatures for such applications can be as high as 70C to 85C.

design feature

  • Low cost, low component count, compact and lightweight, replaceable linear power supply design
  • Extremely energy efficient
  • High efficiency (>60% under full load)
  • Low input power at no load (< 120 mW at 265 VAC AC input)
  • High working temperature (70 °C)
  • Integrated safety and reliability:
  • Precise, auto-recovery and hysteretic shutdown with hysteresis to keep PCB temperature within safe conditions under all conditions
  • High temperature shutdown (135 °C) function allows operation at high ambient temperatures
  • Enters the auto-restart protection state when the output short circuit and the feedback loop open loop
  • Meets CISPR-22/EN55022 B conducted EMI limits with EMI margin >10 dBmV

2.7W dual output non-isolated power supply circuit diagram

See the uploading documentation for details (click to download)

Inductors

I-Beam Inductors,Chip Inductors,Color Ring Inductor,R-Bar Inductors

Shenzhen Sichuangge Magneto-electric Co. , Ltd , https://www.scginductor.com

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