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DER-660 - 29 W high power factor, isolated flyback LED driver with DALI dimming

DER-660 - 29 W High Power Factor, Isolated Flyback LED Driver with DALI Dimming

Overview

This engineering report describes a DALI dimmable, isolated flyback LED driver designed to drive a 36 V, 800 mA LED string over an input voltage range of 180 VAC to 265 VAC. The LED driver uses LYT6067C in the LYTSwitch-6 series of devices. The DER-660 is a high line input flyback converter design with added switching valley fill PFC circuitry. Through the PFC circuit, the design meets the high power factor requirements in LED lighting applications while reducing losses through direct energy transfer. The main design goals are high efficiency, high power factor over the input voltage range and DALI dimming range from 0% to 100%. This document contains power supply specifications, schematics, bill of materials, transformer documentation, printed circuit board layout and performance data

Blockdiagram

Design Files

Related Devices

Devices	Class	introduce	Datasheet
LYTSwitch-6		Flyback CV/CC LED Driver IC with Integrated High-Voltage Switch and FluxLink Feedback	Download

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Update:2024-11-15 02:06:56

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