CN107688521A - A kind of server power supply detects circuit and detection method in place - Google Patents
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Abstract
Description
技术领域technical field
本发明属于服务器电源技术领域，尤其涉及一种服务器电源在位检测电路及检测方法。The invention belongs to the technical field of server power supplies, and in particular relates to a server power supply presence detection circuit and a detection method.
背景技术Background technique
服务器电源就是指使用在服务器上的电源(POWER)，其和PC(个人电脑)电源一样，都是一种开关电源。服务器电源按照标准可以分为ATX电源和SSI电源两种。ATX标准使用较为普遍，主要用于台式机、工作站和低端服务器；而SSI标准是随着服务器技术的发展而产生的，适用于各种档次的服务器。The server power supply refers to the power supply (POWER) used on the server, which is a switching power supply just like the PC (personal computer) power supply. According to the standard, the server power supply can be divided into two types: ATX power supply and SSI power supply. The ATX standard is widely used, mainly for desktop computers, workstations and low-end servers; while the SSI standard is produced with the development of server technology and is suitable for servers of various grades.
在服务器电源中，服务器中的主板管理控制器BMC会读取电源信息，根据读取到的电源信息判断故障所在，例如判断故障是由通信链路问题造成的还是由电源在位状态的问题造成的，目前，金手指输出在位信号供BMC对电源在位状态进行监测，即在金手指上设定一个特定的pin针，作为电源在位状态信号检测针，但是金手指PIN针数量有限，在位信号定义后会占用其他功能加入和扩展，而且在单片机失效后，在位信号会处于不确定状态，导致BMC读取电源信息错，BMC无法准确判定电源在位情况。In the server power supply, the mainboard management controller BMC in the server will read the power supply information, and judge the fault according to the read power supply information, for example, judge whether the fault is caused by a communication link problem or a power supply on-position problem. Yes, at present, the gold finger outputs the presence signal for BMC to monitor the power supply status, that is, set a specific pin on the gold finger as the detection pin of the power supply status signal, but the number of gold finger PIN pins is limited. After the in-position signal is defined, it will occupy other functions to add and expand, and after the MCU fails, the in-position signal will be in an uncertain state, causing the BMC to read the power supply information incorrectly, and the BMC cannot accurately determine the power supply in-position status.
发明内容Contents of the invention
本发明的目的在于提供一种服务器电源在位检测电路，旨在解决现有技术中金手指连接器pin针数量有限，影响其正常功能的加入和扩展，而且单片机失效后，BMC无法准确判定电源在位情况的问题。The purpose of the present invention is to provide a server power supply presence detection circuit, which aims to solve the problem that the number of gold finger connector pins in the prior art is limited, which affects the addition and expansion of its normal functions, and after the single-chip microcomputer fails, the BMC cannot accurately determine the power supply. The question of status.
本发明是这样实现的，一种服务器电源在位检测电路，所述服务器电源在位检测电路包括从电源连接器的接地pin针引出的检测线路，所述检测线路连接BMC检测端口；The present invention is achieved in this way, a server power supply presence detection circuit, the server power supply presence detection circuit includes a detection line drawn from the ground pin of the power connector, and the detection line is connected to the BMC detection port;
所述检测线路上设有一电路节点，以所述电路节点为基点引出上拉线路，所述上拉线路连接至3.3V电压信号端；A circuit node is provided on the detection line, and a pull-up line is drawn from the circuit node as a base point, and the pull-up line is connected to a 3.3V voltage signal terminal;
当所述电源连接器处于悬空状态时，所述BMC检测端口依次通过所述检测线路、上拉线路检测到所述3.3V电压信号端的3.3V电压信号，所述3.3V电压信号为高电平信号；When the power connector is in the floating state, the BMC detection port detects the 3.3V voltage signal of the 3.3V voltage signal terminal through the detection line and the pull-up line in turn, and the 3.3V voltage signal is at a high level Signal;
当所述电源连接器处于非悬空状态时，所述BMC检测端口检测到所述电源连接器的接地pin针的接地信号，所述接地信号为低电平信号。When the power connector is in a non-floating state, the BMC detection port detects a ground signal of the ground pin of the power connector, and the ground signal is a low-level signal.
作为一种改进的方案，所述上拉线路上设有分压电阻R。As an improved solution, a voltage dividing resistor R is provided on the pull-up line.
作为一种改进的方案，所述电源连接器为金手指连接器。As an improved solution, the power connector is a golden finger connector.
作为一种改进的方案，所述3.3V电压信号端由与所述电源连接器位置相近的单片机提供。As an improved solution, the 3.3V voltage signal terminal is provided by a single chip microcomputer which is close to the power connector.
本发明的另一目的在于提供一种基于服务器电源在位检测电路的检测方法，所述方法包括下述步骤：Another object of the present invention is to provide a detection method based on a server power presence detection circuit, the method comprising the following steps:
BMC通过所述检测线路和上拉线路分别对所述电源连接器的接地pin针和3.3V电压信号端进行信号检测；The BMC performs signal detection on the ground pin and the 3.3V voltage signal end of the power connector respectively through the detection circuit and the pull-up circuit;
当所述电源连接器处于悬空状态时，所述BMC检测端口依次通过所述检测线路、上拉线路检测到所述3.3V电压信号端的3.3V电压信号，所述3.3V电压信号为高电平信号；When the power connector is in the floating state, the BMC detection port detects the 3.3V voltage signal of the 3.3V voltage signal terminal through the detection line and the pull-up line in turn, and the 3.3V voltage signal is at a high level Signal;
当所述电源连接器处于非悬空状态时，所述BMC检测端口检测到所述电源连接器的接地pin针的接地信号，所述接地信号为低电平信号。When the power connector is in a non-floating state, the BMC detection port detects a ground signal of the ground pin of the power connector, and the ground signal is a low-level signal.
作为一种改进的方案，所述上拉线路上设有分压电阻R。As an improved solution, a voltage dividing resistor R is provided on the pull-up line.
作为一种改进的方案，所述电源连接器为金手指连接器。As an improved solution, the power connector is a golden finger connector.
作为一种改进的方案，所述3.3V电压信号端由与所述电源连接器位置相近的单片机提供。As an improved solution, the 3.3V voltage signal terminal is provided by a single chip microcomputer which is close to the power connector.
在本发明实施例中，服务器电源在位检测电路包括从电源连接器的接地pin针引出的检测线路，检测线路连接BMC检测端口；检测线路上设有一电路节点，以电路节点为基点引出上拉线路，上拉线路连接至3.3V电压信号端；当电源连接器处于悬空状态时，BMC检测端口依次通过检测线路、上拉线路检测到3.3V电压信号端的3.3V电压信号，3.3V电压信号为高电平信号；当电源连接器处于非悬空状态时，BMC检测端口检测到电源连接器的接地pin针的接地信号，接地信号为低电平信号，从而实现对服务器电源在位信号的检测，使用连接器的接地pin针，不影响连接器的正常功能加入和扩展，而且不受单片机失效的影响，结构简单，成本较低。In the embodiment of the present invention, the server power supply presence detection circuit includes a detection line drawn from the ground pin of the power connector, and the detection line is connected to the BMC detection port; a circuit node is provided on the detection line, and the pull-up circuit is drawn based on the circuit node. The line and the pull-up line are connected to the 3.3V voltage signal terminal; when the power connector is suspended, the BMC detection port detects the 3.3V voltage signal of the 3.3V voltage signal terminal through the detection line and the pull-up line in turn, and the 3.3V voltage signal is High-level signal; when the power connector is in a non-floating state, the BMC detection port detects the ground signal of the ground pin of the power connector, and the ground signal is a low-level signal, thereby realizing the detection of the server power supply presence signal. The use of the ground pin of the connector does not affect the normal function addition and expansion of the connector, and is not affected by the failure of the single-chip microcomputer, the structure is simple, and the cost is low.
附图说明Description of drawings
图1是本发明提供的服务器电源在位检测电路的示意图；Fig. 1 is a schematic diagram of a server power presence detection circuit provided by the present invention;
图2是本发明提供的服务器电源在位检测方法的实现流程图；Fig. 2 is the implementation flowchart of the server power supply presence detection method provided by the present invention;
其中，1-电源连接器，2-接地pin针，3-检测线路，4-BMC检测端口，5-电路节点，6-上拉线路，7-3.3V电压信号端。Among them, 1-power connector, 2-ground pin, 3-detection line, 4-BMC detection port, 5-circuit node, 6-pull-up line, 7-3.3V voltage signal terminal.
具体实施方式detailed description
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
图1示出了本发明提供的服务器电源在位检测电路的示意图，为了便于说明，图中仅给出了与本发明相关的部分。FIG. 1 shows a schematic diagram of a server power presence detection circuit provided by the present invention. For convenience of description, only the parts related to the present invention are shown in the figure.
服务器电源在位检测电路包括从电源连接器1的接地pin针2引出的检测线路3，所述检测线路3连接BMC检测端口4；The server power supply presence detection circuit includes a detection line 3 drawn from the ground pin 2 of the power connector 1, and the detection line 3 is connected to the BMC detection port 4;
所述检测线路3上设有一电路节点5，以所述电路节点5为基点引出上拉线路7，所述上拉线路7连接至3.3V电压信号端7；A circuit node 5 is provided on the detection line 3, and a pull-up line 7 is drawn out based on the circuit node 5, and the pull-up line 7 is connected to a 3.3V voltage signal terminal 7;
当所述电源连接器1处于悬空状态时，所述BMC检测端口4依次通过所述检测线路3、上拉线路7检测到所述3.3V电压信号端的3.3V电压信号，所述3.3V电压信号为高电平信号；When the power connector 1 is in the suspended state, the BMC detection port 4 detects the 3.3V voltage signal of the 3.3V voltage signal terminal through the detection line 3 and the pull-up line 7 in turn, and the 3.3V voltage signal is a high level signal;
当所述电源连接器1处于非悬空状态时，所述BMC检测端口4检测到所述电源连接器1的接地pin针2的接地信号，所述接地信号为低电平信号。When the power connector 1 is in a non-floating state, the BMC detection port 4 detects the ground signal of the ground pin 2 of the power connector 1 , and the ground signal is a low-level signal.
其中，上拉线路7上设有分压电阻R，该分压电阻R的设置，使当所述电源连接器1处于悬空状态时，BMC检测端口4检测到3.3V电压信号。Wherein, the pull-up line 7 is provided with a voltage dividing resistor R, and the voltage dividing resistor R is set so that when the power connector 1 is suspended, the BMC detection port 4 detects a 3.3V voltage signal.
在本发明实施例中，上述电源连接器1为金手指连接器，当然也可以采用其他连接器，在此不再赘述。In the embodiment of the present invention, the above-mentioned power connector 1 is a golden finger connector, of course, other connectors may also be used, and details will not be repeated here.
在该实施例中，上述3.3V电压信号端7由与所述电源连接器1位置相近的单片机提供，即该高电平信号的3.3V电压信号端7是从第三方设备获取，例如靠近该电源连接器1设置的单片机或板体上获取，在此不再赘述。In this embodiment, the above-mentioned 3.3V voltage signal terminal 7 is provided by a single-chip microcomputer close to the power connector 1, that is, the 3.3V voltage signal terminal 7 of the high-level signal is obtained from a third-party device, such as near the The power connector 1 is provided on the single-chip microcomputer or the board body, and will not be repeated here.
在本发明实施例中，利用电源的接地信号作为电源在位检测信号，同时辅助增加上拉线路7，电源在位时低电平输出给BMC，电源不在位时上拉高电平输出给BMC，有效的进行电源在位的判断，能够帮助工程师判定BMC读取不到电源信息的原因，也可以帮助系统判定电源是否冗余等。In the embodiment of the present invention, the ground signal of the power supply is used as the power presence detection signal, and the pull-up line 7 is added at the same time. When the power supply is in place, the low level is output to the BMC, and when the power supply is not in place, the high level is pulled up and output to the BMC. , to effectively judge the presence of the power supply, which can help engineers determine the reason why the BMC cannot read the power supply information, and can also help the system determine whether the power supply is redundant.
图2示出了本发明提供的服务器电源在位检测方法的实现流程图，其具体包括下述步骤：Fig. 2 shows the implementation flowchart of the server power supply presence detection method provided by the present invention, which specifically includes the following steps:
在步骤S101中，BMC通过所述检测线路3和上拉线路7分别对所述电源连接器1的接地pin针2和3.3V电压信号端7进行信号检测。In step S101 , the BMC performs signal detection on the ground pin 2 and the 3.3V voltage signal terminal 7 of the power connector 1 through the detection line 3 and the pull-up line 7 respectively.
在步骤S102中，当所述电源连接器1处于悬空状态时，所述BMC检测端口4依次通过所述检测线路3、上拉线路7检测到所述3.3V电压信号端的3.3V电压信号，所述3.3V电压信号为高电平信号。In step S102, when the power connector 1 is in a suspended state, the BMC detection port 4 detects the 3.3V voltage signal of the 3.3V voltage signal terminal through the detection line 3 and the pull-up line 7 sequentially, so The above 3.3V voltage signal is a high level signal.
在步骤S103中，当所述电源连接器1处于非悬空状态时，所述BMC检测端口4检测到所述电源连接器1的接地pin针2的接地信号，所述接地信号为低电平信号。In step S103, when the power connector 1 is in a non-floating state, the BMC detection port 4 detects the ground signal of the ground pin 2 of the power connector 1, and the ground signal is a low-level signal .
在本发明实施例中，服务器电源在位检测电路包括从电源连接器1的接地pin针2引出的检测线路3，检测线路3连接BMC检测端口4；检测线路3上设有一电路节点5，以电路节点5为基点引出上拉线路7，上拉线路7连接至3.3V电压信号端7；当电源连接器1处于悬空状态时，BMC检测端口4依次通过检测线路3、上拉线路7检测到3.3V电压信号端的3.3V电压信号，3.3V电压信号为高电平信号；当电源连接器1处于非悬空状态时，BMC检测端口4检测到电源连接器1的接地pin针2的接地信号，接地信号为低电平信号，从而实现对服务器电源在位信号的检测，使用连接器的接地pin针2，不影响连接器的正常功能加入和扩展，而且不受单片机失效的影响，结构简单，成本较低。In the embodiment of the present invention, the server power supply presence detection circuit includes a detection line 3 drawn from the ground pin 2 of the power connector 1, and the detection line 3 is connected to the BMC detection port 4; a circuit node 5 is provided on the detection line 3 to The circuit node 5 is the base point leading out the pull-up line 7, and the pull-up line 7 is connected to the 3.3V voltage signal terminal 7; when the power connector 1 is in a suspended state, the BMC detection port 4 detects through the detection line 3 and the pull-up line 7 in sequence The 3.3V voltage signal at the 3.3V voltage signal terminal, the 3.3V voltage signal is a high-level signal; when the power connector 1 is in a non-suspended state, the BMC detection port 4 detects the ground signal of the ground pin 2 of the power connector 1, The ground signal is a low-level signal, so as to realize the detection of the server power on-position signal, using the ground pin 2 of the connector, which does not affect the normal function of the connector to join and expand, and is not affected by the failure of the single-chip microcomputer. The structure is simple, The cost is lower.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
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| CN109581246A (en) * | 2018-12-18 | 2019-04-05 | 浪潮电子信息产业股份有限公司 | Method and device for testing server power supply and test machine BMC |
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| CN108388489A (en) * | 2018-02-27 | 2018-08-10 | 郑州云海信息技术有限公司 | A kind of server failure diagnostic method, system, equipment and storage medium |
| CN108388489B (en) * | 2018-02-27 | 2022-02-18 | 郑州云海信息技术有限公司 | Server fault diagnosis method, system, equipment and storage medium |
| CN109270473A (en) * | 2018-10-17 | 2019-01-25 | 郑州云海信息技术有限公司 | A kind of method and system for examining power supply function |
| CN109270473B (en) * | 2018-10-17 | 2024-03-12 | 郑州云海信息技术有限公司 | A method and system for testing power supply function |
| CN111123363A (en) * | 2018-10-31 | 2020-05-08 | 佛山市顺德区美的电热电器制造有限公司 | Neglected loading detection circuit and cooking utensil |
| CN109444583A (en) * | 2018-11-09 | 2019-03-08 | 加弘科技咨询(上海)有限公司 | External module detects in place and method for controlling power supply, device and electronic equipment |
| CN109581246A (en) * | 2018-12-18 | 2019-04-05 | 浪潮电子信息产业股份有限公司 | Method and device for testing server power supply and test machine BMC |
| CN110765054B (en) * | 2019-10-24 | 2021-06-18 | 深圳市皓丽智能科技有限公司 | Switching circuit of conference tablet system, conference tablet and OPS (optical fiber switch) equipment |
| CN110765054A (en) * | 2019-10-24 | 2020-02-07 | 深圳市皓丽智能科技有限公司 | Switching circuit of conference tablet system, conference tablet and OPS (optical fiber switch) equipment |
| CN110825679A (en) * | 2019-11-08 | 2020-02-21 | 苏州浪潮智能科技有限公司 | Backboard information acquisition method, equipment and storage medium |
| CN111176415A (en) * | 2019-12-29 | 2020-05-19 | 浪潮商用机器有限公司 | A dual-phase power supply circuit and disconnection detection method |
| CN111176415B (en) * | 2019-12-29 | 2021-10-26 | 浪潮商用机器有限公司 | Double-phase power supply circuit and open circuit detection method |
| CN112953788A (en) * | 2021-01-22 | 2021-06-11 | 浪潮电子信息产业股份有限公司 | Network state detection method and device, BMC and storage medium |
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