Manuels d'utilisation pour Intel ATX 0.9

Table des matières

• Intel ATX Power Supply Design Guide

  1
• Disclaimer

  2
• Revision History

  2
• Contents

  3
• 1. Scope

  6
• 2. Applicable Documents

  7
• 3. Electrical Specification

  8
  • 3.1 AC Input Requirements

    8
    • 3.1.1 Input Overcurrent Protection

      8
    • 3.1.2 Inrush Current Limiting

      8
    • 3.1.3 Input Undervoltage

      8
    • 3.1.4 Immunity

      9
      • 3.1.4.1 Slow Transients

        9
      • 3.1.4.2 Surge Voltages

        9
        • 3.1.4.2.1 Surge Immunity, IEC801-5/IEC1000-4-5

          9
        • 3.1.4.2.2 Electrical Fast Transient / Burst, IEC801-4/IEC1000-4-4

          9
        • 3.1.4.2.3 Ring Wave, ANSI C62.45-1992

          10
        • 3.1.4.2.4 Electrostatic Discharge, IEC801-2/IEC1000-4-2

          10
      • 3.1.4.3 Radiated Immunity

        10
        • 3.1.4.3.1 IEC801-3/IEC1000-4-3

          10
        • 3.1.4.3.2 ENV 50140

          10
        • 3.1.4.3.3 Radio Frequency Common Mode, ENV 50141

          10
    • 3.1.5 Catastrophic Failure Protection

      11
  • 3.2 DC Output Requirements

    11
    • 3.2.1 DC Voltage Regulation

      11
    • 3.2.2 Remote Sensing

      11
  • 3.3 Typical Power Distribution

    12
    • 3.3.1 Power Limit

      13
    • 3.3.2 Efficiency

      13
    • 3.3.3 Output Ripple/Noise

      14
    • 3.3.4 Output Transient Response

      14
    • 3.3.5 Capacitive Load

      14
    • 3.3.6 Closed Loop Stability

      14
    • 3.3.7 +5VDC/+3.3VDC Power Sequencing

      15
    • 3.3.8 Voltage Hold-up Time

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  • 3.4 Timing / Housekeeping Control

    16
    • 3.4.1 PWR_OK

      16
    • 3.4.2 PS_ON#

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    • 3.4.3 +5VSB

      17
    • 3.4.4 Power-on Time

      17
    • 3.4.5 Risetime

      18
    • 3.4.6 Overshoot at Turn-on/Turn-off

      18
    • 3.4.7 Reset after Shutdown

      18
    • 3.4.8 +5VSB at AC Power Down

      18
  • 3.5 Output Protection

    19
    • 3.5.1 Overvoltage Protection

      19
    • 3.5.2 Short Circuit Protection

      19
    • 3.5.3 No Load Operation

      19
    • 3.5.4 Overcurrent Protection

      19
    • 3.5.5 Output Bypass

      19
• 4. Mechanical Requirements

  20
  • 4.1 Labeling / Marking

    20
  • 4.2 Physical Dimensions

    20
  • 4.3 Airflow / Fan

    23
  • 4.4 AC Connector

    23
  • 4.5 DC Connectors

    23
    • 4.5.1 ATX Main Power Connector

      24
    • 4.5.2 Auxiliary Power Connector

      25
    • 4.5.3 Peripheral Connector(s)

      25
    • 4.5.4 Floppy Drive Connector

      25
• 5. Environmental Requirements

  26
  • 5.1 Temperature

    26
  • 5.2 Thermal Shock (Shipping)

    26
  • 5.3 Humidity

    26
  • 5.4 Altitude

    26
  • 5.5 Mechanical Shock

    26
  • 5.6 Random Vibration

    27
  • 5.7 Acoustics

    27
• 6. Electromagnetic Compatibility

  28
  • 6.1 EMI

    28
  • 6.2 Input Line Current Harmonic Content (Optional)

    28
  • 6.3 Magnetic Leakage Fields

    28
• 7. Reliability

  29
  • 7.1 Component Derating

    29
  • 7.2 Mean Time Between Failures (MTBF)

    29
• 8. Safety Requirements

  30
  • 8.1 North America

    30
  • 8.2 International

    31
  • 8.3 Proscribed Materials

    31