Intel ATX12V manual Input Line Current Harmonic Content and Line Flicker, Magnetic Leakage Fields

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ATX12V Power Supply Design Guide

Version 2.0 Final Review Copy

6.3. Input Line Current Harmonic Content and Line Flicker

For sales in EU (European Union) or Japan the power supply shall meet the requirements of EN61000-3-2 Class D and the Guidelines for the Suppression of Harmonics in Appliances and General Use Equipment Class D for harmonic line current content at full rated power. See Table 16 for the harmonic limits.

Table 16. Harmonic Limits, Class D Equipment

Harmonic Order

n

Per: EN 61000-3-2

 

Per: JEIDA MITI

Maximum permissible Harmonic

 

Maximum permissible Harmonic

current at 230 VAC / 50 Hz in Amps

 

current at 100VAC / 50 Hz in Amps

Odd harmonics

3

5

7

9

11

13

15≤ n ≤39

2.3

1.14

0.77

0.4

0.33

0.21

0.15 x (15/n)

5.29

2.622

1.771

0.92

0.759

0.483

0.345 x (15/n)

6.4. Magnetic Leakage Fields

A PFC choke magnetic leakage field should not cause any interference with a high- resolution computer monitor placed next to or on top of the end-use chassis.

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Contents ATX12V VersionImportant Information and Disclaimers Contents Safety MechanicalEnvironmental Electromagnetic CompatibilityFigures TablesIntroduction ScopeIncreased +12 VDC output capability Minimum EfficiencySeparate current limit for 12V2 on the 2x2 connector Main Power ConnectorTerminology Document Title Applicable DocumentsDescription Electrical AC InputInput Over-current Protection Inrush Current LimitingRegulatory Input Under-voltageOther Certifications and/or Declarations DC Output Catastrophic Failure ProtectionDC Voltage Regulation DC Output Voltage RegulationTypical Power Distribution Remote SensingPower 12V power wattsMin Max Current Output AmpsTypical Power Distribution for a 300 W ATX12V Configuration Cross Loading Graph for 300W ConfigurationTypical Power Distribution for a 350 W ATX12V Configuration Cross Loading Graph for 350W ConfigurationTypical Power Distribution for a 400 W ATX12V Configuration Min Max Peak Current Output AmpsPower Limit / Hazardous Energy Levels EfficiencyGeneral Minimum Efficiency Vs LoadLoading Table for Efficiency Measurements Energy Star Input Power Consumption Other Low Power System RequirementsOutput Ripple/Noise Energy StarDC Output Noise/Ripple Max. Ripple & Noise MVppOutput Transient Response Capacitive LoadDC Output Transient Step Sizes Output Capacitive Loads10. +5 VDC / +3.3 VDC Power Sequencing Timing / Housekeeping / ControlClosed-loop Stability Voltage Hold-up TimePwrok Pwrok Signal CharacteristicsPSON# PSON# Signal Characteristics 3. +5 VSBPower-on Time Reset after Shutdown8. +5 VSB at AC Power-down RisetimeOutput Protection Over-voltage ProtectionShort-circuit Protection No-load OperationOver-temperature Protection Output BypassMechanical Physical DimensionsLabeling / Marking Second optional fan may go in this location Second optional Airflow / Fan AC Connector DC Connectors+5V +33V 12V+12V1 +5V ATX Main Power Connector Pin Signal Color2. +12 V Power Connector Peripheral ConnectorsConnector Molex 39-01-2040 or equivalent Pin Signal AWG WireSerial ATA Power Connector Floppy Drive ConnectorWire Signal Connector AMP 171822-4 or equivalent Pin Signal AWG WireTemperature EnvironmentalThermal Shock Shipping HumidityRandom Vibration Mechanical ShockAcoustics Emissions Electromagnetic CompatibilityImmunity Magnetic Leakage Fields Input Line Current Harmonic Content and Line FlickerHarmonic Limits, Class D Equipment Reliability Component De-ratingSafety North AmericaInternational Proscribed Materials
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