ATX Version 3.0 Multi Rail Desktop Platform Power Supply

Design Guide

ID 336521
Date 01/02/2022
Version 2.0
Public
Document Table of Contents

AC Input - REQUIRED

Table 4-1 lists AC input voltage and frequency requirements for continuous operation. The power supply shall be capable of supplying full-rated output power over two input voltage ranges rated 90-135 VAC and 180-265 VAC rms nominal. The correct input range for use in a given environment may be either switch-selectable or auto-ranging. The power supply shall automatically recover from AC power loss. The power supply must be able to start up under full loading at 90 VAC.

Note:OPTIONAL - 115 VAC or 230 VAC only power supplies are an option for specific geographical or other requirements.

Table 4-1: AC Input Line Requirements

Parameter

Minimum

Nominal1

Maximum

Unit

Vin (115 VAC)

90

115

135

VACrms

Vin (230VAC)

180

230

265

VACrms

Vin Frequency

47

-

63

Hz

Note:Nominal voltages for test purposes are considered to be within ±1.0 V of nominal.