Power Integrations PFS729EG | Demoboard DER-274

Description

This document is an engineering report describing a PFC power supply utilizing aHiperPFS PFS729EG integrated PFC controller. This power supply is intended as ageneral purpose evaluation platform that operates from 180 VAC to 264 VAC input andprovides a regulated 380 VDC output voltage and a continuous output power of 900 W.This power supply can deliver the rated power at 230 VAC or higher input voltages at aroom temperature of 25 ºC. For operation at higher ambient temperatures or lower inputvoltages, use of forced air cooling is recommended.The document contains the power supply specification, schematic, bill of materials,inductor documentation, printed circuit layout, and performance data.

Features

 Low component count, high performance PFC

• EN61000-3-2 Class-D compliance with low component count
• High PFC efficiency enables 80 Plus PC Main design
• Frequency sliding maintains high efficiency across load range
• Feed forward line sense gain – maintains relatively constant loop gain over entireoperating voltage range
• Excellent transient load response
• Power Integration eSIP™ low-profile package

Typical applications

• PFC Front End Stage

More information

• Datasheet
• IC product information