WO2014005356A1 - 一种用于检测pc电源的电子负载机 - Google Patents

一种用于检测pc电源的电子负载机 Download PDF

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Publication number
WO2014005356A1
WO2014005356A1 PCT/CN2012/078687 CN2012078687W WO2014005356A1 WO 2014005356 A1 WO2014005356 A1 WO 2014005356A1 CN 2012078687 W CN2012078687 W CN 2012078687W WO 2014005356 A1 WO2014005356 A1 WO 2014005356A1
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WIPO (PCT)
Prior art keywords
power supply
detecting
electronic load
load machine
signal
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PCT/CN2012/078687
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English (en)
French (fr)
Inventor
尚艳燕
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Shang Yanyan
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Publication of WO2014005356A1 publication Critical patent/WO2014005356A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero

Definitions

  • This invention relates to the field of power supply manufacturing and, more particularly, to an electronic loader for detecting PC power.
  • the electronic loader is a multi-function electronic load-bearing instrument designed for various S.P.S. (converted power supply), which is specially supplied to the production department, inspection department or development department.
  • the electronic loader can simulate the load in the real environment (using electrical appliances) to detect the quality of the power supply. Its features are quite numerous, including the ability to adjust the load size, as well as short circuits, overcurrents, dynamics, and more.
  • the principle of the electronic load is to control the internal power or the conduction of the transistor (the amount of duty cycle).
  • the device that consumes power by the power dissipation of the power tube can accurately detect the load voltage and accurately adjust the load current.
  • Analog load short circuit, analog load is inductive resistive and capacitive, capacitive load current rise time.
  • the PC power supply not only outputs the voltage, but also has a signal connection with the main board.
  • the two have a certain relationship in chronological order. This is called timing. Timing is an important condition for the power supply to work well with the motherboard. It is also the most common cause of the computer not being able to power on and off, and the power supply is not compatible with the motherboard.
  • the most important timing is the relationship between the power supply output voltage (usually represented by +5V) and the P.G (output normal) signal, and the PS_ON# signal.
  • the P.G signal is controlled by the power supply, indicating whether the power supply is ready, and the PS_ON# signal is controlled by the main board to indicate whether it is to be turned on. Both signals are connected through a 20-pin motherboard power cord.
  • the working process of the computer is like this: After the AC line is powered, a voltage of +5VSB is output to the motherboard, and a small number of lines on the motherboard start to work.
  • this is called standby state; when the host switch is pressed, the motherboard will turn the PS_ON# signal low, the power supply is connected to the low level and starts to start and generate all the output voltage, at all output voltages. Within 0.1 ⁇ 0.5 seconds after the normal establishment, the power supply will turn the PG signal back to the main board, indicating that the power supply is ready, and then the motherboard starts up and running.
  • the motherboard restores the PS_ON# signal to a high level after completing all shutdown operations.
  • the power supply turns off all output voltages and PG signals, leaving only the +5VSB output, and the entire host returns to standby.
  • the motherboard can not give a shutdown signal, the power will detect AC power off, and the PG signal will be low to notify the motherboard, the motherboard immediately performs an emergency reset of the hardware to protect the hardware from damage.
  • the power supply informs the motherboard that at least one thousandth of a second of the normal output voltage is maintained after the power is turned off, so that the motherboard can be reset. Otherwise, some hardware damage may occur.
  • the technical problem to be solved by the present invention is to provide an electronic loader capable of detecting the delay time of a PG signal of a PC power source.
  • an electronic loader for detecting a power supply of a PC in which a phase transformer for detecting a delay time of a power supply PG signal is provided.
  • the phase transformer is provided with a shielding cover for shielding electromagnetic interference.
  • a shielding cover for shielding electromagnetic interference.
  • the shield is provided with an opening for wiring. To facilitate the connection of the line.
  • a wire laying groove provided on the frame of the electronic loader is further included. Collecting the connection lines inside the electronic loader by using the laying groove can avoid confusion caused by too many lines.
  • the wire laying groove is a rectangular groove structure, and one side of the wire laying groove is provided with an opening for placing a circuit into the wire laying groove, and the opening is provided with a screw, and the wire passes through the screw Enclosed in the laying groove.
  • An opening is provided in the laying groove, and the opening is closed by a screw, so that the line is confined in the laying groove, thereby facilitating the installation and maintenance of the line.
  • the wire laying groove is further provided with a screw hole for fixing, and the wire laying groove is fixed to the frame by screws. The wire groove is fixed to the frame by screws, so that the laying of the line is fixed in a certain area i or inside.
  • the invention provides a phase transformer in the electronic load machine, captures the zero-crossing point of the current through the phase transformer, and starts timing when the phase is zero, so that the delay time of the PG signal of the power source can be accurately measured, and thus the It is detected whether the power supply is compatible with the motherboard of the PC, that is, whether the delay time of the power supply to emit the PG signal matches the time when the main board can receive the PG signal.
  • FIG. 1 is a view showing the internal structure of an electronic loader according to an embodiment of the present invention
  • FIG. 2 is a structural view of a construction line of an electronic loader according to an embodiment of the present invention.
  • FIG. 1 is a specific embodiment of an electronic loader for detecting a PC power supply according to the present invention, comprising: a chassis 100 and a plurality of functional components disposed in the chassis, wherein the plurality of functional components A phase transformer 110 for detecting the delay time of the PG signal of the PC power supply is included.
  • the PG signal of the test computer power supply is counted from the moment when the power is turned on, and then the +5V voltage of the computer power supply is always detected. If the +5V voltage output is normal, the delay time of the PG signal is the end, and the delay time is to be performed. For accurate measurements, you need to grab the moment of power-on.
  • the phase transformer secondary is connected to the circuit, and the pulse signal of the same frequency is induced by the transformer to capture the zero-crossing point of the current, and the timing from the zero-crossing point is the delay time of the P.G signal.
  • the phase transformer 110 includes a square shield (not numbered in the figure), and the shield is provided with an opening for wiring to enable the phase transformer 110 to be coupled to the electronic loader.
  • the other components on the connection are a square shield (not numbered in the figure), and the shield is provided with an opening for wiring to enable the phase transformer 110 to be coupled to the electronic loader. The other components on the connection.
  • the functional components of the electronic loader and the connecting lines thereof are respectively installed in the interior of the chassis 100.
  • a heat dissipation frame 130 having a rectangular parallelepiped shape is disposed laterally in the chassis 100, and the functional components of the heat dissipation frame 130 are respectively separated by the functional components. That is, the functional components in the electronic loader are respectively disposed on both sides of the heat dissipation frame 130, and are connected through a connection line.
  • the heat dissipation frame 130 is provided with a wire laying groove 120.
  • the wire laying groove 120 is disposed at one end of the heat dissipation frame 130.
  • the connection lines of the functional components on both sides of the heat dissipation frame 130 are laid in the wire laying groove 120, so as to avoid the electronic load.
  • the internal wiring of the machine is scattered, which affects the installation of the electronic loader and future maintenance.
  • the wire laying groove 120 is a rectangular groove structure, and one side of the wire laying groove 120 is provided with an opening for inserting the connecting line into the wire laying groove 120, and the opening is provided with a screw hole 121,
  • the connecting line is enclosed in the wire laying groove 120 by the screw provided on the screw hole 121.
  • the wire laying groove 120 is further provided with a fixing screw hole 122, and the wire laying groove 120 is directly fixed to the heat dissipation frame 110 by screws, so that the wire laying groove 120 can be conveniently disassembled and assembled, and the line is conveniently gathered to the floor. Inside the slot 120.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Electric Clocks (AREA)

Abstract

一种用于检测PC电源的电子负载机，其内设置有用于检测电源PG信号延迟时间的相位变压器（110）。通过相位变压器抓取电流的过零点，并在相位过零的时刻开始计时，可以准确测出PG信号的延迟时间，从而可以检测出电源与主板是否兼容，即电源发出PG信号的延迟时间与主板能够接收PG信号的时间是否相匹配。

Description

一种用于检测 PC电源的电子负载机
【技术领域】
本发明涉及电源制造领域， 更具体的说， 涉及一种用于检测 PC电源的电子 负载机。
【背景技术】
电子负载机是针对各式 S.P.S. (转换式电源供应器）设计的多功能电子负 载仪器， 专门提供给生产部门， 检验部门或是开发部门使用。 电子负载机可以 模拟真实环境中的负载 （用电器） 来检测电源的好坏。 其功能相当多， 包括可 以调节负载大小， 以及短路， 过流， 动态等等。 电子负载的原理是控制内功率 或晶体管的导通量 (量占空比大小）， 靠功率管的耗散功率消耗电能的设备， 它能 够准确检测出负载电压,精确调整负载电流， 同时可以实现模拟负载短路， 模拟 负载是感性阻性和容性， 容性负载电流上升时间。
PC 电源不仅输出电压， 还要与主板有信号联系， 两者在时间次序上有一 定的关系， 这就叫做时序。 时序是电源与主板良好配合的重要条件， 也是导致 电脑无法正常开关机， 以及电源与主板不兼容的最常见原因。
时序中最重要的是电源输出电压 (通常以 +5V 为代表)与 P.G (输出正常） 信号， 以及 PS_ON#信号之间的关系。 P.G信号由电源控制， 代表电源是否准备 好， PS_ON#信号则由主板控制， 表示是否要开机。 两个信号都是通过 20芯的 主板电源线来连接的， 电脑开关机的工作过程是这样的： 电源在交流线通电后， 输出一个电压 +5VSB到主板， 主板上的少部分线路开始工作， 并等待开机的操 作， 这叫做待机状态； 当按下主机开关时， 主板就把 PS_ON#信号变成低电平， 电源接到低电平后开始启动并产生所有的输出电压， 在所有输出电压正常建立 后的 0.1~0.5秒内， 电源将会把 P.G信号变成高电平传回给主板， 表示电源已经 准备好， 然后主板开始启动和运行。
正常关机时，主板在完成所有关机操作后，把 PS_ON#信号恢复成高电平， 电源关闭所有输出电压和 P.G信号， 只保留 +5VSB输出， 整个主机又恢复到待 机状态。 当非正常关机时， 主板无法给出关机信号， 此时电源会探测到交流断 电， 并把 P.G信号变为低电平通知主板， 主板立刻进行硬件的紧急复位， 以保护 硬件不会受损。 这种情况电源通知主板断电后， 至少还要保持千分之一秒的正 常输出电压， 供主板进行复位， 否则有可能造某些硬件的损坏。
主板接收 P.G信号与电源发出 P.G信号存在一个时差问题， 假设主板能接 收 P.G信号的时间是 10ms, 10ms之后如果接不到 PG信号就会认为电源没有初 始化成功或损坏。 因而， 需要对电源发出 P.G信号的时间进行检测， 以保证其 P.G信号的延迟与电脑的主板相匹配。
【发明内容】
本发明所要解决的技术问题是提供一种可检测 PC电源的 PG信号延迟时间 的电子负载机。
本发明的目的是通过以下技术方案来实现的：一种用于检测 PC电源的电子 负载机， 所述电子负载机内设置有用于检测电源 PG信号延迟时间的相位变压 器。
优选的， 所述相位变压器上设置有用于屏蔽电磁干扰的屏蔽罩。 通过设置 屏蔽罩， 避免相位变压器受到电子负载机上的其他具有电磁干扰源的组件的干 扰， 提高相位变压器的工作精度。
优选的， 所述屏蔽罩上设置有用于布线的开口。 以便于线路的连接。
优选的， 还包括一设在所述电子负载机机架上的铺线槽。 利用铺线槽收集 电子负载机内部的连接线路， 可避免线路过多而造成混乱。
优选的， 所述铺线槽为矩形槽结构， 所述铺线槽的一侧面设置有用于将线 路放入铺线槽内的开口， 所述开口处设置有螺釘， 所述线路通过所述螺釘封闭 在所述铺线槽内。 在铺线槽上设置开口， 并通过螺釘将开口封闭， 使线路被限 制在铺线槽内， 从而方便线路的安装及维修。 优选的， 所述铺线槽上还设置有用于固定的螺丝孔， 所述铺线槽通过螺丝 固定到所述机架上。 通过螺丝将铺线槽固定在机框上， 使得线路的铺设固定在 一定的区 i或内。
本发明由于在电子负载机内设置了相位变压器， 通过相位变压器抓取电流 的过零点，并在相位为零的时候开始计时，从而可以准确的测出电源的 P.G信号 的延迟时间， 也就可以检测出电源与 PC的主板是否兼容， 即电源发出 P.G信号 的延迟时间与主板能接收 P.G信号的时间是否相匹配。
【附图说明】
图 1是本发明实施例的电子负载机的内部结构筒图，
图 2是本发明实施例的电子负载机的铺线槽的结构筒图。
其中： 100、 机框， 110、 相位变压器， 120、 铺线槽， 130、 散热框架， 121、 螺釘孔， 122、 螺丝孔。
【具体实施方式】
下面结合附图和较佳的实施例对本发明作进一步说明。
如图 1所示为本发明所述的用于检测 PC电源的电子负载机的一个具体实施 例， 其包括： 机箱 100 以及设置在机箱内的多个功能组件， 其中， 所述多个功 能组件中包括一用于检测 PC电源的 PG信号延迟时间的相位变压器 110。
测试电脑电源的 P.G信号，是从电源通电的瞬间开始计时的，然后一直检测 电脑电源的 +5V电压， 若 +5V电压输出正常， 结束时即为 P.G信号的延迟时间， 要对该延迟时间进行准确测量， 则需要抓取通电瞬间的时间。 如图 2所示， 相 位变压器次级的与电路连接， 通过变压器感应出同频率的脉沖信号， 抓取电流 的过零点， 并从该过零点开始计时即为 P.G信号的延迟时间。
如图 1所示， 相位变压器 110包括有一个方形的屏蔽罩（图中未以数字标 注）， 屏蔽罩上设置有用于布线的开口， 以使相位变压器 110能够与电子负载机 上的其它组件连接。
电子负载机的各个功能组件及其连接接线路分别安装在机箱 100 的内部， 机箱 100内横向设置有一个长方体形状的散热框架 130,散热框架 130的将电子 负载机内的功能组件分别隔开， 即电子负载机内的功能组件分别设置在散热框 架 130的两侧， 通过连接线路进行连接。 散热框架 130上设置有一铺线槽 120, 铺线槽 120设置在散热框架 130的一端， 所述散热框架 130两侧功能组件的连 接线路铺设在所述铺线槽 120 内， 这样可以避免电子负载机内部的线路散乱， 影响到电子负载机的安装以及今后的维修。
如图 3所示， 铺线槽 120为矩形槽结构， 铺线槽 120的一侧面设置有用于 将连接线路放入铺线槽 120内的开口， 所述开口处设置有螺釘孔 121 , 所述连接 线路通过所述设置在螺釘孔 121上的螺釘封闭在所述铺线槽 120内。铺线槽 120 上设置有还设置用于固定螺丝孔 122,铺线槽 120通过螺丝直接固定到散热框架 110上， 从而可以方便的对铺线槽 120进行拆装， 也方便将线路集合到铺线槽 120内。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或替 换， 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种用于检测 PC电源的电子负载机， 其特征在于， 所述电子负载机内 设置有用于检测电源 PG信号延迟时间的相位变压器。
2、 如权利要求 1所述的一种用于检测 PC电源的电子负载机， 其特征在于， 所述相位变压器上设置有用于屏蔽电磁干扰的屏蔽罩。
3、 如权利要求 2所述的一种用于检测 PC电源的电子负载机， 其特征在于， 所述屏蔽罩上设置有用于布线的开口。
4、 如权利要求 1所述的一种用于检测 PC电源的电子负载机， 其特征在于， 还包括一设在所述电子负载机机架上的铺线槽。
5、 如权利要求 4所述的一种用于检测 PC电源的电子负载机， 其特征在于， 所述铺线槽为矩形槽结构， 所述铺线槽的一侧面设置有用于将线路放入铺线槽 内的开口， 所述开口处设置有螺釘， 所述线路通过所述螺釘封闭在所述铺线槽 内。
6、 如权利要求 4所述的一种用于检测 PC电源的电子负载机， 其特征在于， 所述铺线槽上还设置有用于固定的螺丝孔， 所述铺线槽通过螺丝固定到所述机 架上。
7、 如权利要求 4苏搜的一种用于检测 PC电源的电子负载机， 其特征在于， 所述铺线槽通过捆绑固定到所述机架上。
PCT/CN2012/078687 2012-07-04 2012-07-16 一种用于检测pc电源的电子负载机 WO2014005356A1 (zh)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108549009B (zh) * 2018-05-22 2020-11-27 苏州浪潮智能科技有限公司 解决vr掉电时序测试powergood信号不单调的方法及系统
CN114252800B (zh) * 2022-02-28 2022-05-27 深圳市暗能量电源有限公司 一种双路输出电源Power Good信号控制电路及电子设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1274088A (zh) * 1999-05-18 2000-11-22 刘英彰 直流电子负载模拟装置
CN2870310Y (zh) * 2005-07-30 2007-02-14 华为技术有限公司 一种机箱
CN102004536A (zh) * 2010-09-16 2011-04-06 孔繁忠 静音电源
CN202661616U (zh) * 2012-07-04 2013-01-09 尚艳燕 用于检测pc电源的电子负载机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2766304B1 (fr) * 1997-07-17 1999-10-01 Schlumberger Ind Sa Circuit d'alimentation pour un compteur d'electricite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1274088A (zh) * 1999-05-18 2000-11-22 刘英彰 直流电子负载模拟装置
CN2870310Y (zh) * 2005-07-30 2007-02-14 华为技术有限公司 一种机箱
CN102004536A (zh) * 2010-09-16 2011-04-06 孔繁忠 静音电源
CN202661616U (zh) * 2012-07-04 2013-01-09 尚艳燕 用于检测pc电源的电子负载机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHANG, XIAOJIE ET AL.: "Reliability Test of the Server Switching Power Supply System", PROCEEDINGS (2) OF 10TH NATIONAL INFORMATION GATHERING AND PROCESSING ACADEMIC CONFERENCE, vol. 29, no. 4, 2008, HENAN PROVINCE, CHINA, pages 128 - 132 *

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