IXDN0036 datasheet(10/41 Pages) IXYS

10 / 41 page

ATAVRFBKIT / EVLD001 User Guide

4-9

7597A–AVR–02/06

Section 4

Ballast Demonstrator Operation

4.1

General

Requirements

•

Constant power as determined by DALI or analog power setting

380 volt DC bus as provided by a power factor correcting boost regulator (PFC)

100% to 2% dimming setting

•

One or two lamps, type T8 of any characteristics

Ballast to compensate automatically

Hardware is capable of up to 40W per lamp

•

Line voltage of 90 to 265 VAC, 50 or 60 Hz

•

Control method

DALI power control – auto recognition of control means

0-10 volt power control – auto recognition of control means

One touch “Swiss” dimming

100% ON after ignition then dim to the last or current programmed value, if any.

4.2

Circuit Topology

Input filter with variator for noise suppression and protection.

PFC / boost circuit including IXI859 MOSFET driver

Megaballast microcontroller 24 pin SOIC

½ bridge driver

½ bridge power MOSFET stage for up to 2 lamps

Voltage driven filaments for wider lamp variety and better stability under all conditions

380VDC bus voltage after the PFC boost

IXDN0036 Datasheet(PDF) 10 Page - IXYS Corporation