PMP30631 Reference Design

Texas Instruments

High efficiency: 70-W AC/DC active clamp flyback reference design

Description

This reference design uses the UCC28780 active clamp flyback controller to generate an isolated output of 20 V @ 3.5 A over an input voltage rage of 90 Vac to 264 Vac. The design also uses the UCC24612 synchronous rectifier controller on the secondary side. Zero voltage switching (ZVS) ensures high efficiency over a wide operating range.

Features
  • Zero voltage switching (ZVS) provides high efficiency (93% peak value)Adaptive burst mode feature maintains high efficiency even at light loadsSynchronous rectifier using drain-to-source voltage sensing
Applications
  • DIN rail power supply
Product Categories
  • Power management