WO2014005352A1 - 一种电子负载机 - Google Patents

一种电子负载机 Download PDF

Info

Publication number
WO2014005352A1
WO2014005352A1 PCT/CN2012/078680 CN2012078680W WO2014005352A1 WO 2014005352 A1 WO2014005352 A1 WO 2014005352A1 CN 2012078680 W CN2012078680 W CN 2012078680W WO 2014005352 A1 WO2014005352 A1 WO 2014005352A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic load
load machine
interference source
power input
pins
Prior art date
Application number
PCT/CN2012/078680
Other languages
English (en)
French (fr)
Inventor
尚艳燕
Original Assignee
Shang Yanyan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shang Yanyan filed Critical Shang Yanyan
Publication of WO2014005352A1 publication Critical patent/WO2014005352A1/zh

Links

Classifications

    • 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
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field

Definitions

  • the present invention relates to the field of power supply manufacturing, and more particularly to an electronic load machine. ⁇ Background technique ⁇
  • 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 electronic load machine is internally provided with a variety of circuit boards, various instruments, etc., which have electromagnetic interference when the power is used.
  • the circuit board and the instrument generate various electromagnetic interference phenomena during operation, and electromagnetic interference causes the electronic load to be inside the machine. The operation of various instruments and lines is disturbed to reduce the accuracy of the electronic load machine.
  • the technical problem to be solved by the present invention is to provide an electronic loader with high accuracy.
  • An electronic loader includes: a chassis, an interference source component with electromagnetic interference disposed on the chassis, and the one or more interference source components are provided with a shielding cover .
  • the interference source component comprises a power supply motherboard, and the power supply mainboard is provided with a shielding cover.
  • the main board of the power supply generates electromagnetic interference and is shielded by a shield to avoid affecting the normal operation of other components. It also prevents other components from affecting the normal operation of the power supply board, thereby providing the accuracy of the electronic loader.
  • the shielding cover is provided with a mounting structure for fixing it to the chassis of the electronic loader. The shield is fixed to the chassis by the mounting structure, so that the shield can be prevented from directly contacting the power supply board, which affects the stability of the power supply board.
  • the shielding cover is provided with an opening for laying the line.
  • the line can pass through by providing an opening in the shield.
  • the interference source component comprises a front end display circuit board, and the front display screen circuit board is also provided with a shielding cover.
  • the front-end display line is more concentrated and is the main component of electromagnetic interference.
  • the interference source component comprises an AC adapter board, and the AC adapter board is also provided with a shielding cover.
  • the AC adapter board is also the main component of electromagnetic interference.
  • a shield is provided to improve the accuracy of the electronic loader.
  • the electronic loader is provided with a standard power input socket, and is provided with an additional power input socket of a different voltage level from the standard power input socket. By setting up an additional power input socket, the versatility of the electronic loader can be improved to meet the needs of multiple regions.
  • the electronic load machine is provided with an additional power input socket
  • the additional power input socket is provided with a plurality of pins, and the plurality of pins are combined with each other to correspond to input of a plurality of different voltages.
  • the additional power input socket is provided with four pins, including a neutral pin and three live pins, the neutral pin is connected to the neutral wire, and the three live pins are respectively 90 V
  • the 110V and 120V input lines are connected, and the input lines share a neutral line. Meet several common voltage level requirements.
  • the invention is provided with a shielding cover on an interference source component of an electronic load machine with electromagnetic interference, such as a power main board, an AC adapter board, etc., and shields electromagnetic waves by a shielding cover to avoid leakage of electromagnetic waves generated by the interference source components. Affects the normal operation of other components, and can also avoid external components. The generated electromagnetic waves interfere with the normal operation of the components within the shield, thereby improving the accuracy of the electronic loader.
  • electromagnetic interference such as a power main board, an AC adapter board, etc.
  • FIG. 1 is a schematic diagram showing the internal structure of an electronic loader according to an embodiment of the present invention
  • FIG. 2 is a structural view of a shield structure of a power supply mainboard of an electronic load machine according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a rear panel of an electronic loader according to an embodiment of the present invention.
  • Fig. 4 is a schematic diagram of a power input line of an electronic loader according to an embodiment of the present invention.
  • 101 AC adapter plate shield, 102, ring shield, 103, power main board shield, 104, display circuit board shield, 1031, mounting structure, 1032, opening, 10, standard voltage input socket, 11, select switch, 20, SPS socket, 30, add power outlets, 40, switch, 50, fuse.
  • the electronic load machine of the present invention comprises: a power main board and an AC adapter board shield 101 thereon, a toroidal transformer and an annular shield 102 thereon, an AC adapter board and thereon
  • the electromagnetic wave is shielded by the shield to avoid the leakage of electromagnetic waves generated by these interference source components and affect the normal operation of other components, thereby improving the accuracy of the electronic loader.
  • the shield of the power supply board is taken as an example.
  • the power supply main board is mainly a rectangular circuit board, and a plurality of lines and components are disposed thereon, and a large electromagnetic interference is generated after the circuit is turned on.
  • the main board is provided with a rectangular power supply main board shield 103.
  • the size of the power main board shield 103 is slightly larger than the size of the power supply board, just covering the power main board, and the inner depth of the power main screen shield 103 can accommodate the power main board and the upper part thereof.
  • the power main board shield cover 103 is provided with a mounting structure 1031 for fixing it to the chassis 100.
  • the mounting structure 1031 is provided with screw holes, and the power main board shield cover 1031 is fixed to the chassis 100 by screws.
  • the power main board shield 103 is also provided with an opening 1032 for providing a line laying, and the direction of the opening 1032 is avoided as far as possible toward other important components, thereby preventing electromagnetic wave leakage from affecting these important components.
  • the rear panel of the electronic loader is provided with: a standard power input plug 10, an SPS input plug 20, an additional power input plug 30, and a selection of a standard power input plug 10 and an additional power input plug 30.
  • the standard voltage input plug 10 is used to configure the 115V standard voltage and the input of the 230V standard power supply
  • the power input plug 30 is used to configure the input of the 90V, 110V, and 120 or more power supplies.
  • the electronic load The machine is also provided with a line selection switch 11 for connecting the standard power input plug 10 to a 115V or 230V line.
  • the electronic loader is provided with an additional power input socket 30, and the additional power input socket 30 is provided with four pins.
  • the four pins include a neutral one.
  • the additional power input socket 30 and the standard power input socket 10 are respectively selected by the exchange switch, as shown in the figure, the desired input socket is selected by the switch 40 (Source Select).
  • corresponding fuses 50 are respectively provided for 90V lines, 110V lines, 120V lines, 115V and 230V, and neutral lines.
  • a total of five fuses are: AC-1, AC-2 , AC-3, AC-N, and line, where line is a 115V or 230V line fuse.
  • the four pins are arranged in a square shape to facilitate the manufacture of the plug, and at the same time save space, and the plug can also be correspondingly fabricated as needed.
  • switches are also provided in the 90V, 110V, and 120V lines for controlling the input of different voltages.
  • the number of pins for adding the power input socket 30 can be determined according to the needs. According to the level of the required input voltage, a corresponding number of pins can be set to meet the requirements. By defining and connecting the pins, the pins have different functions, and then Corresponding combinations of input interfaces for a variety of voltages, as well as corresponding line connection settings in the circuit, can meet different power input requirements.
  • the present invention can also meet the power input requirements of 90V, 110, and 120V, respectively, by adding three conventional additional power input sockets, or more.
  • the secondary method requires a few more plugs in cost, and also takes up a lot of space in design, and the connection of the lines is also troublesome.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

一种电子负载机，包括：机箱（100），设置在机箱上的具有电磁干扰的一个或多个干扰源组件；在一个或多个干扰源组件上设置有屏蔽罩（101，102，103，104）。干扰源组件包括电源主板、AC转接板和显示屏线路板。通过在干扰源组件上设置能够屏蔽掉电磁波的屏蔽罩，既可以避免干扰源组件所产生的电磁波泄漏影响其他组件的正常运行，又可以避免外部组件所产生的电磁波干扰到屏蔽罩内组件的正常运行，从而提高了电子负载机的精确性。

Description

一种电子负载机
【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。
电子负载机内部设置有多种线路板、 各种仪器等在通电使用时具有电磁干 扰的干扰源组件， 线路板以及仪器在工作时会产生各种电磁干扰现象， 电磁干 扰致使电子负载机内的各种仪器及线路运行受到干扰而降低电子负载机的精确 性。
【发明内容】
本发明所要解决的技术问题是提供一种精确性高的电子负载机。
本发明的目的是通过以下技术方案来实现的： 一种电子负载机， 包括： 机 箱， 设置在机箱上的具有电磁干扰的干扰源组件， 所述一个或多个干扰源组件 上设置有屏蔽罩。
优选的， 所述干扰源组件包括有电源主板， 所述电源主板上设置有屏蔽罩。 电源主板会产生电磁干扰， 使用屏蔽罩进行屏蔽， 以避免影响到其它组件的正 常运行， 同时也能够避免其他组件影响到电源主板的正常运行， 进而提供电子 负载机的精确性。 优选的， 所述屏蔽罩上设置有用于将其固定到电子负载机的机箱上的安装 结构。 通过安装结构将屏蔽罩固定到机箱上， 从而可以避免屏蔽罩与电源主板 直接接触， 影响到电源主板的稳定性。
优选的， 所述屏蔽罩上设置有用于线路铺设的开口，。 通过在屏蔽罩上设置 开口以使线路可以通过。
优选的， 所述干扰源组件包括有前端显示屏线路板， 所述前端显示屏线路 板上也设置有屏蔽罩。 前端显示屏的线路较为集中， 也是电磁干扰的主要发生 组件。
优选的， 所述干扰源组件包括有 AC转接板， 所述 AC转接板上也设置有屏 蔽罩。 AC转接板也是电磁干扰的主要组件， 针对这些干扰源较大的组件， 设置 屏蔽罩以提高电子负载机的精确性。
所述电子负载机设置有一标配电源输入插座， 还设置有与所述标配电源输 入插座不同电压等级的增设电源输入插座。 通过设置增设电源输入插座， 以提 高电子负载机的通用性， 满足多个地区的使用需要。
优选的， 所述电子负载机上设置有一个增设电源输入插座， 所述增设电源 输入插座上设置有多个针脚， 所述多个针脚相互组合而对应到多种不同电压的 输入。 通过在一个增设电源输入插座上设置多个增加， 并通过组合使用而对应 到不同的电压， 从而避免因为需求而增加多个增设电源输入插座， 节约生产成 本及优化设计。
优选的， 所述增设电源输入插座上设置有四个针脚， 包括一个中性线针脚 以及三个火线针脚， 所述中性线针脚与中性线连接， 所述三个火线针脚分别与 90 V, 110V以及 120V输入线路连接， 所述输入线路共用一条中性线。 满足几种 常用的电压等级需求。
本发明由于在电子负载机的具有电磁干扰的干扰源组件如电源主板， AC转 接板等组件上设置屏蔽罩， 通过屏蔽罩将电磁波屏蔽掉， 以避免这些干扰源组 件所产生的电磁波泄露而影响到其它组件的正常运行， 也能够避免外部组件所 产生的电磁波干扰到屏蔽罩内的组件的正常运行， 从而提高电子负载机的精确 性。
【附图说明】
图 1是本发明实施例的电子负载机的内部结构简图，
图 2是本发明实施例的电子负载机的电源主板屏蔽罩结构筒图，
图 3是本发明实施例的电子负载机的后面板的结构简图，
图 4是本发明实施例的电子负载机的电源输入电 线示意图。
其中： 101、 AC转接板屏蔽罩， 102、 环形屏蔽罩， 103、 电源主板屏蔽罩， 104、 显示屏线路板屏蔽罩， 1031、 安装结构， 1032、 开口， 10、 标配电压输入 插座， 11、 选择开关， 20、 S.P.S.插座， 30、 增设电源插座， 40、 调换开关， 50、 保险丝。
【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电子负载机， 其包括： 电源主板及其上的 AC 转接板屏蔽罩 101、 环形变压器及其上的环形屏蔽罩 102、 AC转接板及其上的 电源主板屏蔽罩 101以及显示屏线路板及其上的显示屏线路板屏蔽罩 104。通过 屏蔽罩将电磁波屏蔽掉， 以避免这些干扰源组件所产生的电磁波泄露而影响到 其它组件的正常运行， 从而提高电子负载机的精确性。
本实施例以电源主板的屏蔽罩为例， 如图 2所示， 电源主板主要为长方形 电路板， 其上设置有多种线路及元器件， 导通电路后产生较大的电磁干扰， 在 电源主板上设置了一长方体形状的电源主板屏蔽罩 103，电源主板屏蔽罩 103的 大小比电源主板的大小稍大， 刚好罩住电源主板， 电源主板屏蔽罩 103 内部的 深度可以容纳电源主板及其上的元器件， 避免电源主板屏蔽罩 103 与电源主板 上的元器件直接接触或抵压而影响到元器件的正常运行或者破坏这些元器件； 更正页 （细则第 91条) 电源主板屏蔽罩 103上设置有用于将其固定到机箱 100上的安装结构 1031， 安 装结构 1031上设置有螺钉孔， 电源主板屏蔽罩 1031通过螺钉固定到机箱 100 上。
电源主板屏蔽罩 103上还设置有用于提供线路铺设的开口 1032， 开口 1032 的方向尽量避免朝向其它重要的组件， 进而避免电磁波泄漏影响到这些重要的 组件。
如图 3所示在电子负载机的后面板上设置有： 标配电源输入插头 10、 S.P.S 输入插头 20、 增设电源输入插头 30、 用于选择标配电源输入插头 10与增设电 源输入插头 30的电源选择调换开关 40、 以及用于保证线路安全的保险丝 50。 其中，标配电压输入插头 10用于配置 115V标准电压以及 230V标准电源的输入， 而增设电源输入插头 30用于配置 90V、 110V以及 120或是更多的电源的输入； 另夕卜，电子负载机还设置有用于将标配电源输入插头 10连接到 115V或 230V线 路的线路选择开关 11。
如图中所示， 本发明中， 电子负载机设置了一个增设电源输入插座 30, 所 述增设电源输入插座 30上设置有四个针脚， 如图 4所示， 四个针脚中包括一个 中性线针脚 COM以及三个火线针脚 IN-1、 IN-2以及 IN-3 , 中心线针脚与中性 线连接， 而火线针脚分别与 90V、 110V以及 120V线路连接， 三个不同电压等 级的输入线路共用一条中性线， 进而使得该增设电源输入插座 30可以提供三种 不同电压的电源输入。 增设电源输入插座 30以及标配电源输入插座 10分别通 过调换开关选择， 如图中所示， 通过调换开关 40 ( Source Select )选择所需要的 输入插座。
如图 3所示， 针对 90V线路、 110V线路、 120V线路、 115V和 230V、 以 及中性线，分别设置了相应的保险丝 50,本实施例中共 5个保险丝分别为： AC-1、 AC- 2、 AC-3、 AC-N以及 line (线路），其中 line为 115V或 230V线路的保险丝。 通过保险丝 50的保护， 从而确保各条线路的安全性， 同时也确保电子负载机的 安全。 更正页 （细则第 91条) 本实施例中， 四个针脚按方形排列， 以便于插头的制作， 同时节约空间， 插头也可以根据需要进行相应的制作。如图 3中所示，在 90V、 110V以及 120V 线路中还分别设置有开关， 用于控制不同电压的输入。
当然， 增设电源输入插座 30的针脚数量可以根据需要而定， 根据所需输入 电压的等级， 可以设置相应数量的针脚以满足需求， 通过对针脚定义并连线而 使针脚具有不同的功能， 然后进行相应的组合满足多种电压的输入接口， 同时 在电路中进行相应的线路连接设置， 就能满足不同的电源输入要求。
另外， 本发明也可以通过增加三个普通的增设电源输入插座分别满足 90V、 110以及 120V的电源输入要求，或者更多。但次方法在成本上要多加几个插头， 在设计上也占用较大空间， 线路的连接也较为麻烦。
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， 还可以做出若干简单推演或替 换， 都应当视为属于本发明的保护范围。
更正页 （细则第 91条)

Claims

权利要求
1、 一种电子负载机， 包括： 机箱， 设置在机箱上的具有电磁干扰的干扰源 组件， 其特征在于， 所述一个或多个干扰源组件上设置有屏蔽罩。
2、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述干扰源组件包 括有电源主板， 所述电源主板上设置有屏蔽罩。
3、 如权利要求 2所述的一种电子负载机， 其特征在于， 所述屏蔽罩上设置 有用于将其固定到电子负载机的机箱上的安装结构。
4、 如权利要求 2所述的一种电子负载机， 其特征在于， 所述屏蔽罩上设置 有用于铺线线路的开口。
5、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述干扰源组件包 括有前端显示屏线路板， 所述前端显示屏线路板上也设置有屏蔽罩。
6、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述干扰源组件包 括有 AC转接板， 所述 AC转接板上也设置有屏蔽罩。
7、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述电子负载机设 置有一标配电源输入插座， 还设置有与所述标配电源输入插座不同电压等级的 增设电源输入插座。
8、 如权利要求 1所述的一种电子负载机， 其特征在于， 所述电子负载机上 设置有一个增设电源输入插座， 所述增设电源输入插座上设置有多个针脚， 所 述多个针脚相互组合而对应到多种不同电压的输入。
9、 如权利要求 8所述的一种电子负载机， 其特征在于， 所述增设电源输入 插座上设置有四个针脚， 包括一个中性线针脚以及三个火线针脚， 所述中性线 针脚与中性线连接， 所述三个火线针脚分别与 90V、 110V以及 120V输入线路 连接， 所述输入线路共用一条中性线。
PCT/CN2012/078680 2012-07-04 2012-07-16 一种电子负载机 WO2014005352A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2012102289962A CN102830367A (zh) 2012-07-04 2012-07-04 一种电子负载机
CN201210228996.2 2012-07-04

Publications (1)

Publication Number Publication Date
WO2014005352A1 true WO2014005352A1 (zh) 2014-01-09

Family

ID=47333569

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/078680 WO2014005352A1 (zh) 2012-07-04 2012-07-16 一种电子负载机

Country Status (2)

Country Link
CN (1) CN102830367A (zh)
WO (1) WO2014005352A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112986852A (zh) * 2021-05-12 2021-06-18 广州朗国电子科技有限公司 一体机电源故障检测电路

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206740869U (zh) * 2017-03-16 2017-12-12 上海蔚来汽车有限公司 电磁兼容性测试装置和包含其的测量系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200965548Y (zh) * 2006-07-07 2007-10-24 比亚迪股份有限公司 一种电子负载测量仪
CN201682536U (zh) * 2010-05-07 2010-12-22 梅州众成实业有限公司 通用终端综合测试仪结构
CN102004536A (zh) * 2010-09-16 2011-04-06 孔繁忠 静音电源
CN202661614U (zh) * 2012-07-04 2013-01-09 尚艳燕 电子负载机
CN202738375U (zh) * 2012-07-04 2013-02-13 王广祥 电子负载机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3458334B1 (ja) * 2003-04-30 2003-10-20 株式会社計測技術研究所 交流電子負荷装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200965548Y (zh) * 2006-07-07 2007-10-24 比亚迪股份有限公司 一种电子负载测量仪
CN201682536U (zh) * 2010-05-07 2010-12-22 梅州众成实业有限公司 通用终端综合测试仪结构
CN102004536A (zh) * 2010-09-16 2011-04-06 孔繁忠 静音电源
CN202661614U (zh) * 2012-07-04 2013-01-09 尚艳燕 电子负载机
CN202738375U (zh) * 2012-07-04 2013-02-13 王广祥 电子负载机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112986852A (zh) * 2021-05-12 2021-06-18 广州朗国电子科技有限公司 一体机电源故障检测电路

Also Published As

Publication number Publication date
CN102830367A (zh) 2012-12-19

Similar Documents

Publication Publication Date Title
US20130164999A1 (en) Server with power supply unit
TWM485601U (zh) 防治電信號受到干擾的電路結構
CN102435786A (zh) 一种电波暗室用大电流输出的转台装置
WO2014005352A1 (zh) 一种电子负载机
US9635752B2 (en) Printed circuit board and electronic device
TW201339817A (zh) 機櫃電源裝置
TW201423354A (zh) Usb電源提供電路
CN107846834A (zh) 功率模块
CN206505350U (zh) 一种带有mini pcie转pci扩展槽的工业平板电脑
CN202815032U (zh) 一种防强磁三相电表
CN202661614U (zh) 电子负载机
CN201742638U (zh) 一种印刷电路板
CN208796086U (zh) 一种用于喷涂设备的控制效果好的plc
CN202713776U (zh) 一种防静电印制板
CN202661616U (zh) 用于检测pc电源的电子负载机
CN202735495U (zh) 电子负载机
US20210157379A1 (en) Power supply apparatus
JP2017150900A (ja) 電力計測装置
CN105101612A (zh) 印刷电路板
JP2008140844A (ja) プリント配線板
CN206272738U (zh) 电视主板及电视机
TWM589934U (zh) 微型光電傳輸器
US11921565B2 (en) Load adjusted populations of integrated circuit decoupling capacitors
CN202837516U (zh) 电子负载机
TW201929616A (zh) 印刷電路板結構

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12880670

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12880670

Country of ref document: EP

Kind code of ref document: A1