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Intel关于PC电源部分的要求。
【文件名】:081231@52RD_Power Supply Design Guide for Desktop Platform Form Factors.pdf
【格 式】:pdf
【大 小】:1565K
【简 介】:This document provides design suggestions for various power supply form factors. The
power supplies are primarily intended for use with desktop system designs. It should
not be inferred that all power supplies must conform exactly to the content of this
document, though there are key parameters that define mechanical fit across a
common set of platforms. Since power supply needs vary depending on system
configuration, the design specifics described are not intended to support all possible
systems.
【目 录】:1 Introduction..............................................................................................................9
1.1 Reference Documentation.....................................................................................9
1.2 Terminology ..................................................................................................... 10
2 Platform Configurations........................................................................................... 13
2.1 Digital Home and Digital Office Platform Configurations - RECOMMENDED................. 13
3 Electrical ................................................................................................................. 19
3.1 AC Input - REQUIRED ........................................................................................ 19
3.1.1 Input Over Current Protection - REQUIRED ................................................ 19
3.1.2 Inrush Current - REQUIRED..................................................................... 19
3.1.3 Input Under Voltage - REQUIRED ............................................................. 19
3.2 DC Output - REQUIRED...................................................................................... 20
3.2.1 DC Voltage Regulation ............................................................................ 20
3.2.2 Output Transient Response - REQUIRED.................................................... 20
3.2.3 Remote Sensing - REQUIRED................................................................... 21
3.2.4 Other Low Power System Requirements - RECOMMENDED ........................... 21
3.2.5 Output Ripple Noise - REQUIRED.............................................................. 21
3.2.6 Capacitive Load - REQUIRED.................................................................... 22
3.2.7 Closed Loop Stability - REQUIRED ............................................................ 22
3.2.8 +5 VDC / +3.3 VDC Power Sequencing - REQUIRED ................................... 23
3.2.9 Voltage Hold-up Time - REQUIRED ........................................................... 23
3.3 Timing, Housekeeping and Control - REQUIRED..................................................... 23
3.3.1 PWR_OK ............................................................................................... 23
3.3.2 Power-up Cross Loading Condition ............................................................ 24
3.3.3 PS_ON#................................................................................................ 24
3.3.4 +5 VSB................................................................................................. 25
3.3.5 Power-on Time....................................................................................... 25
3.3.6 Rise Time.............................................................................................. 26
3.3.7 Overshoot at Turn-on / Turn-off ............................................................... 26
3.4 Reset after Shutdown ........................................................................................ 26
3.4.1 +5 VSB at Power-down ........................................................................... 26
3.5 Output Protection - REQUIRED............................................................................ 26
3.5.1 Over Voltage Protection........................................................................... 26
3.5.2 Short Circuit Protection ........................................................................... 27
3.5.3 No-load Situation ................................................................................... 27
3.5.4 Over Current Protection .......................................................................... 27
3.5.5 Over Temperature Protection ................................................................... 27
3.5.6 Output Bypass ....................................................................................... 27
3.5.7 Separate Current Limit for 12V2 - RECOMMENDED...................................... 27
3.5.8 Overall Power Supply Efficiency and ENERGY STAR ..................................... 28
3.5.9 Overall Power Supply Efficiency and Climate Savers§ .................................. 30
4 Mechanical .............................................................................................................. 33
4.1 Labeling and Marking - RECOMMENDED................................................................ 33
4.2 Connectors - REQUIRED..................................................................................... 33
4.2.1 AC Connector ........................................................................................ 33
4.2.2 DC Connectors....................................................................................... 33
4.2.2.1 Main Power Connector ............................................................... 34
4.2.2.2 Peripheral Connectors................................................................ 35
4.2.2.3 Floppy Drive Connector.............................................................. 35
4.2.2.4 +12 V Power Connector ............................................................. 36
4.2.2.5 Serial ATA* Power Connectors .................................................... 36
4.3 Airflow and Fans - RECOMMENDED.......................................................................37
4.3.1 Fan Location and Direction .......................................................................37
4.3.2 Fan Size and Speed ................................................................................37
4.3.3 Venting .................................................................................................38
5 Acoustics .................................................................................................................39
5.1 Acoustics - RECOMMENDED.................................................................................39
6 Environmental.........................................................................................................41
6.1 Temperature - RECOMMENDED............................................................................41
6.1.1 Thermal Shock (Shipping)........................................................................41
6.2 Humidity - RECOMMENDED .................................................................................41
6.3 Altitude - RECOMMENDED...................................................................................41
6.4 Mechanical Shock - RECOMMENDED .....................................................................41
6.5 Random Vibration - RECOMMENDED.....................................................................41
7 Electromagnetic Compatibility .................................................................................43
7.1 Emissions - REQUIRED .......................................................................................43
7.2 Immunity - REQUIRED .......................................................................................43
7.3 Input Line Current Harmonic Content - OPTIONAL..................................................43
7.4 Magnetic Leakage Fields - REQUIRED ...................................................................43
7.5 Voltage Fluctuations and Flicker - REQUIRED.........................................................44
8 Safety......................................................................................................................45
8.1 North America - REQUIRED.................................................................................45
8.2 International - REQUIRED ...................................................................................45
8.3 Proscribed Materials ...........................................................................................46
8.4 Catastrophic Failure Protection - RECOMMENDED ...................................................46
9 Reliability ................................................................................................................47
9.1 Reliability - RECOMMENDED ................................................................................47
10 CFX12V Specific Guidelines 1.41 ..............................................................................49
10.1 Typical Power Distribution - RECOMMENDED..........................................................49
10.2 Physical Dimensions - REQUIRED.........................................................................53
11 LFX12V Specific Guidelines 1.21...............................................................................55
11.1 Typical Power Distribution - RECOMMENDED..........................................................55
11.2 Physical Dimensions - REQUIRED.........................................................................58
12 ATX12V Specific Guidelines 2.31 ..............................................................................63
12.1 Typical Power Distribution - RECOMMENDED..........................................................63
12.2 Physical Dimensions - REQUIRED.........................................................................72
13 SFX12V Specific Guidelines 3.21 ..............................................................................75
13.1 Typical Power Distribution - RECOMMENDED..........................................................75
13.2 Lower Profile Package - Physical Dimensions - REQUIRED........................................79
13.3 Fan Requirements - REQUIRED............................................................................79
13.4 Top Fan Mount Package - Physical Dimensions - REQUIRED.....................................81
13.5 Fan Requirements - REQUIRED............................................................................81
13.6 Reduced Depth Top Mount Fan - Physical Dimensions - REQUIRED ...........................83
13.7 Fan Requirements - REQUIRED............................................................................83
13.8 Standard SFX Profile Package - Physical Dimensions - REQUIRED.............................84
13.9 Fan Requirements - REQUIRED............................................................................85
13.10 PS3 Form Factor- Physical Dimensions - REQUIRED................................................86
13.11 Fan Requirements - REQUIRED............................................................................86
14 TFX12V Specific Guidelines 2.31 ..............................................................................89
14.1 Typical Power Distribution - RECOMMENDED..........................................................89
14.2 Physical Dimensions - REQUIRED ........................................................................ 94
14.3 Mounting Options - RECOMMENDED..................................................................... 97
14.4 Chassis Requirements - RECOMMENDED............................................................... 97
15 Flex ATX Specific Guidelines 1.01 ............................................................................ 99
15.1 Typical Power Distribution - RECOMMENDED ......................................................... 99
15.2 Physical Dimensions - REQUIRED ...................................................................... 103
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