开关电源技术规格书
Switching Power Supply Specification
型号Model： 1305AC
拟制(Editor) ：段家贵
审核(Verifier) ：
批准(Approver) ：
版本(Edition) ：1305
1、总则Introduction
该款电源参考intel提出的ATX12V V2.31标准设计制造，额定输出功率90W。
。
The Power Supply was designed reference Intel Power Supply Design Guide ATX12V 2.31. Rated output total power is90W.
2、电气特性Electrical
2.1、
2.2、直流精度
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注：当+12V处于峰值电流负载时，输出电压范围为±10%。
Note: At +12VDC peak loading, regulation at the +12V outputs can go to ±10%.
2.3、直流功率分布Typical Power Distribution
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2.4、
注意：1、噪声与纹波的测试带宽为10Hz～20MHz；
2、在测试噪音与纹波期间，用一个0.1UF瓷片电容和10UF的电解电容并接在输出端上。
Note:
1、Ripple and noi are defined as periodic or random signals over a frequency band of 10Hz to
20 MHz.
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2、Measurements shall be made with an oscilloscope with 20 MHz of bandwidth. Outputs
should be bypasd at the connector with a 0.1µF ceramic disk capacitor and a 10 µF electrolytic capacitor to simulate system loading.
2.5、电源效率Efficiency
在25℃下，直流输入11.4V-12.6V 、Intel规定的满负载条件下，电源效率不小于80%。
The efficiency of the power supply should be greater than or equal to 80%, at nominal input voltage of DC 11.4V-12.6V input, under the load conditions defined in the form factor specific ctions of intel PSDG, at 25℃。
2.6、电源过冲Overshoot
在开关DC电源或开关PS_ON#时引起的直流输出电压过冲应小于正常输出的10%，并且不会产生反极性的电压。
The output voltage overshoot upon the application or removal of the input voltage, or the asrtion/de-asrtion of PS_ON#, under the conditions specified in paragraph 2.3, shall be less than 10% above the nominal voltage. No voltage of opposite polarity shall be prent on any output during turn-on or turn-off.
2.7、保护功能Output Protection
2.8.1.过功率保护Over Power Protection
过功率后，电压主输出将终止。保护动作的功率120%～150%额定功率。
After OPP,the main DC output should shut down.The OPP is 120%～150% rating power.
2.8.2.过压保护Over V oltage Protection
电源具有自锁性过压保护功能，保护点如下表：
The supply shall provide latch-mode over voltage protection as defined in following table：
2.8.
3.短路保护Short Circuit Protection
主电源每路输出端对地短路时，电源都能自动保护锁定；主输出与5VSB短路不损坏电源；主电源开启时，+5VSB输出端对地短路，电源能自动保护；短路解除后可自动恢复。
The power supply shall shut down and latch off for shorting the +3.3 VDC, +5 VDC,+12 V1DC
or +12 V2DC rails . Shorts between main output rails and +5 VSB shall not cau any damage to the power supply. The power supply may shut down when a +5 VSB short circuit event occurs,and recover automatically without trouble.
2.8.4.空载运转No-load Situation
电源在无负载运转时，对电源不会造成伤害。
No damage or hazardous condition should occur with all the DC output connectors disconnected from the load.
2.8、PS_0N#信号和PWR_OK信号PS_ON# Signal & PWR_OK Signal
2.9.1.PS_ON#
PS_ON#信号是TTL兼容信号, 主板通过PS_ON#信号来控制电源的开关。当PS_ON#信号是低电平时，电源开机，当PS_ON#信号是高电平时，电源关机。企业社会责任感
PS_ON# is an active-low, TTL-compatible signal that allows a motherboard to remotely control the power supply in conjunction with features such as soft on/off, Wake on LAN*, or wake-on-modem. When PS_ON# is pulled to TTL low, the power supply should turn on the four main DC output rails: +12 VDC, +5 VDC, +3.3 VDC, and -12 VDC. When PS_ON# is pulled to TTL high or open-circuited, the DC output rails should not deliver current and should be held at zero potential with respect to
ground.
2.9.2.PWR_OK
PWR_OK信号是一个5V的TTL信号。开机后在各路直流输出电压达到最低检测电平时，经过100-500mS的延时, PWR_OK信号为高电平；当有直流输出低于最低检测电平时, PWR_OK信号为低电平。
PWR_OK is a “power good” signal, TTL-compatible signal.This signal should be asrted high by the power supply to indicate that the +12 VDC, +5 VDC, and +3.3 VDC outputs are within the regulation thresholds and that sufficient mains energy is stored by the converter to guarantee continuous power operation within specification for at least the duration specified . Converly, PWR_OK should be de-asrted to a low state when any of the +12 VDC, +5 VDC, or +3.3 VDC output voltages falls below its under voltage threshold, or when mains power has been removed for a time sufficiently long such that power supply operation cannot be guaranteed. The electrical and
2.9、时间序列Power Supply Timing
Power-on Time （电源启动时间）T<500ms
3、机械特性Mechanical
真诚地英语3.1、输出连接器外形Connectors
PCI-E connnector
+12V connector
+12VDC
COM COM +5VDC -12V
+3.3V COM
泰安小吃COM PS/ON谭延闿书法
COM
COM +3.3V +3.3V COM +5V COM +5V COM +5V COM
+5V +5V P.G +5VSB +12V +12V
+3.3V PIN1
PIN4
PIN4PIN1PIN1PIN13
+5VDC
COM COM +12VDCsp姜刑
主输出连接器
Main power connector
外围设备连接器Peripheral Connector 软盘驱动器连接器Floppy Drive Connector SATA连接器SATA connector
+3.3VDC COM +5VDC +12VDC PIN1
PIN15
+3.3VDC +3.3VDC COM COM +5VDC +5VDC COM COM COM +12VDC +12VDC
信心英文
PCI-E输出连接器 (方6+2P)
COM
COM
+12VDC +12VDC +12VDC COM COM COM +12VDC
+12VDC COM COM +12VDC +12VDC COM COM
+12V输出连接器 (方4+4P)
