CN113204509A - Hot plug connecting device and assembly - Google Patents
Hot plug connecting device and assembly Download PDFInfo
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- CN113204509A CN113204509A CN202110476174.5A CN202110476174A CN113204509A CN 113204509 A CN113204509 A CN 113204509A CN 202110476174 A CN202110476174 A CN 202110476174A CN 113204509 A CN113204509 A CN 113204509A
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- 238000001514 detection method Methods 0.000 claims description 42
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 33
- 239000010931 gold Substances 0.000 claims description 33
- 229910052737 gold Inorganic materials 0.000 claims description 33
- 230000004044 response Effects 0.000 claims description 16
- 230000008034 disappearance Effects 0.000 claims description 6
- 238000007726 management method Methods 0.000 description 40
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000002788 crimping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a hot plug connecting device and assembly, comprising: one side of the connector is fixedly connected to the management board, the other side of the connector is provided with a female opening for accommodating part of the main board, a first spring and a second spring are arranged in the female opening, one end of each of the first spring and the second spring is fixed to the inner wall of the female opening, and the other end of each of the first spring and the second spring is connected to the conical protruding buckle; the golden finger row is arranged on one side of the main board inserted into the female port, two ends of the golden finger row are provided with guide rails corresponding to the conical convex buckles in position, and conical grooves are formed in the guide rails corresponding to the first spring and the second spring; the golden finger row comprises a first golden finger with a first length and a second golden finger with a second length, wherein the first length is larger than the distance between the first spring and the second spring and the distance is larger than the second length, and the golden finger row is electrically connected to the management board through the connector. The invention can realize the convenience for hot plug of the management board, the convenience for fault handling and the economy and labor saving.
Description
Technical Field
The present invention relates to the field of hot plugging, and more particularly, to a hot plugging connection device and assembly.
Background
With the upgrading of CPUs (central processing units), the cost of main board PCBs (printed circuit boards) becomes higher and higher due to the requirement of supporting PCIE Gen4/Gen5 (fourth generation/fifth generation peripheral component interconnect extensions), and server splitting becomes a trend design. Under the condition of a split-board server, the server product is more flexible due to the more convenient and automatic design, the hot plug function is very important in power supply design and signal design, and especially, the data storage is very important in fault detection and equipment replacement. Hot plugging enables users to operate quickly and accurately without shutting down the system.
A server is usually assembled by adopting a mainboard and a management board, the power-on time sequence is controlled by a mainboard CPLD (complex programmable logic device), and a power supply required by a BMC (baseboard management controller) is accessed to the management board; the connector is assembled before power-on, and the golden finger and the connector are ensured to be combined without problems, so that the power-on and the startup can be realized. The collocation mode in the prior art does not support the hot plug function, and needs to be assembled before power-on; if the management board of the server is hung up and burned out due to unknown reasons during operation, the connector cannot be normally connected due to manual mistaken touch or chassis vibration and the problem that the BMC cannot realize the management function of the server, so that the server fails or crashes and the like due to the problems of insertion force and angle during server assembly, great manpower is required to be invested for debugging, replacement and restarting; the time and labor are greatly wasted, and economic loss is caused.
Aiming at the problem that the fault is difficult to process because the main board does not support a hot plug management board in the prior art, no effective solution is available at present.
Disclosure of Invention
In view of this, an object of the embodiments of the present invention is to provide a hot plug connection device and a hot plug connection assembly, which are capable of facilitating hot plug of a management board, facilitating fault handling, and saving economy and labor.
In view of the above object, a first aspect of the embodiments of the present invention provides a hot plug connection device, including:
one side of the connector is fixedly connected to the management board, the other side of the connector is provided with a female opening for accommodating part of the main board, a first spring and a second spring are arranged in the female opening, one end of each of the first spring and the second spring is fixed to the inner wall of the female opening, and the other end of each of the first spring and the second spring is connected to the conical protruding buckle;
the golden finger row is arranged on one side of the main board inserted into the female port, two ends of the golden finger row are provided with guide rails corresponding to the conical convex buckles in position, and conical grooves are formed in the guide rails corresponding to the first spring and the second spring; the golden finger row comprises a first golden finger with a first length and a second golden finger with a second length, wherein the first length is greater than the distance between the first spring and the second spring and the distance is greater than the second length, and the golden finger row is electrically connected to the management board through the connector;
the detection module is connected to the second golden finger and responds to the disappearance of the in-place signal received from the second golden finger to send a hot-drawing signal;
and the control module is connected to the detection module and the first golden finger and is configured to respond to the hot-unplugging signal received from the detection module so as to disconnect the first golden finger from the mainboard.
In some embodiments, the first gold finger is configured to selectively receive a ground signal, a power signal and a data signal under the control of the control module.
In some embodiments, the golden finger row is in the first position, so that the first spring is used for clamping the conical protrusion buckle connected to the first spring into the conical groove arranged at the position corresponding to the second spring, the first golden finger is electrically connected to the management board through the connector, and the second golden finger is electrically insulated from the management board.
In some embodiments, the golden finger row in the second position enables the first spring to clip the conical protrusion buckle connected to the first spring into the conical groove arranged at the position corresponding to the first spring, enables the second spring to clip the conical protrusion buckle connected to the second spring into the conical groove arranged at the position corresponding to the second spring, and enables the first golden finger and the second golden finger to be electrically connected to the management board through the connector.
In some embodiments, the detection module is configured to issue a hot-plug signal to the control module in response to the row of gold fingers moving from the first position to the second position causing the detection module to receive a low level from the second gold finger.
In some embodiments, the control module is configured to control the power signal of the motherboard to provide the timing for the first golden finger to power up the management board normally in response to receiving the hot-plug signal from the detection module.
In some embodiments, the detection module is configured to issue a hot-dip signal to the control module in response to the row of gold fingers moving from the second position to the first position causing the detection module to receive a high level from the second gold finger.
In some embodiments, the control module is configured to control the second golden finger to cut off the power supply signal through the electronic fuse in response to receiving the hot-pull signal from the detection module.
In some embodiments, the detection module is a complex programmable logic device, the control module is a field programmable gate array, and the complex programmable logic device and the field programmable gate array are connected and communicated through a serial general input/output bus.
A second aspect of an embodiment of the present invention provides a hot plug connection assembly, including:
the hot plug connecting device;
a management board fixedly connected to the hot plug connection device;
the main board is connected to the hot plug connecting device in a pluggable mode and is configured to provide hot plug function for the management board.
The invention has the following beneficial technical effects: according to the hot plug connecting device and the hot plug connecting assembly provided by the embodiment of the invention, by using the connector, one side is fixedly connected to the management board, the other side is provided with a female port for accommodating part of the main board, a first spring and a second spring are arranged in the female port, one ends of the first spring and the second spring are fixed on the inner wall of the female port, and the other ends of the first spring and the second spring are connected to the conical convex buckle; the golden finger row is arranged on one side of the main board inserted into the female port, two ends of the golden finger row are provided with guide rails corresponding to the conical convex buckles in position, and conical grooves are formed in the guide rails corresponding to the first spring and the second spring; the golden finger row comprises a first golden finger with a first length and a second golden finger with a second length, wherein the first length is greater than the distance between the first spring and the second spring and the distance is greater than the second length, and the golden finger row is electrically connected to the management board through a connector; the detection module is connected to the second golden finger and responds to the disappearance of the in-place signal received from the second golden finger to send a hot-drawing signal; the control module is connected to the detection module and the first golden finger, responds to the technical scheme that the hot plug signal is received from the detection module and the first golden finger is disconnected from the mainboard, can be convenient for hot plug the management board, is convenient for handle the fault, and saves economy and manpower.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a hot plug connection device according to the present invention;
FIG. 2 is a physical block diagram of a connector of the hot swap connection device provided in the present invention;
FIG. 3 is a schematic diagram of a physical structure of a golden finger row of the hot plug connection device according to the present invention;
FIG. 4 is a schematic circuit diagram of a hot swap connection assembly according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In view of the above, a first aspect of the embodiments of the present invention provides an embodiment of a hot plug connection device that facilitates hot plug of a management board, facilitates fault handling, and is economical and manual. Fig. 1 is a schematic circuit diagram of a hot plug connection device according to the present invention.
The hot plug connection device comprises an assembly detection circuit, and the assembly detection circuit comprises the following components as shown in figure 1:
a connector 1 having one side fixedly connected to the management board and the other side provided with a female port for receiving a part of the main board, a first spring 11 and a second spring 12 provided in the female port, one end of the first spring 11 and one end of the second spring 12 fixed to an inner wall of the female port and the other end connected to a tapered protrusion buckle 13;
the golden finger row 2 is arranged on one side of the main board inserted into the female port, two ends of the golden finger row 2 are provided with guide rails corresponding to the conical convex buckles 13 in position, and conical grooves are formed in the guide rails corresponding to the first springs 11 and the second springs 12; the gold finger row 2 comprises a first gold finger with a first length and a second gold finger with a second length, wherein the first length is larger than the distance between the first spring 11 and the second spring 12 and is larger than the second length, and the gold finger row 2 is electrically connected to the management board through the connector 1;
the detection module 3 is connected to the second golden finger and is configured to send out a hot-plug signal in response to the disappearance of the in-place signal received by the management board from the second golden finger;
and the control module 4 is connected to the detection module 3 and the first golden finger and responds to the hot-unplugging signal received from the detection module 3 to disconnect the first golden finger from the mainboard.
In some embodiments, the first gold finger is configured to selectively receive a ground signal, a power signal and a data signal under the control of the control module 4.
In some embodiments, when the gold finger row 2 is in the first position, the first spring 11 is made to clip the conical protruding buckle 13 connected to the first spring 11 into the conical groove disposed at the position corresponding to the second spring 12, so that the first gold finger is electrically connected to the management board through the connector 1, and the second gold finger is electrically insulated from the management board.
In some embodiments, the gold finger row 2, in the state of being in the second position, causes the first spring 11 to clip the tapered protrusion catch 13 connected to the first spring 11 into the tapered groove provided at the position corresponding to the first spring 11, causes the second spring 12 to clip the tapered protrusion catch 13 connected to the second spring 12 into the tapered groove provided at the position corresponding to the second spring 12, and causes the first gold finger and the second gold finger to be electrically connected to the management board through the connector 1.
In some embodiments, the detection module 3 is configured to issue a hot-plug signal to the control module 4 in response to the row of gold fingers 2 moving from the first position to the second position causing the detection module 3 to receive a low level from the second gold finger.
In some embodiments, the control module 4 is configured to control the power signal of the main board to provide the timing for the management board to be normally powered on to the first gold finger in response to receiving the hot-plug signal from the detection module 3.
In some embodiments, the detection module 3 is configured to issue a hot-dip signal to the control module 4 in response to the row of gold fingers 2 moving from the second position to the first position causing the detection module 3 to receive a high level from the second gold finger.
In some embodiments, the control module 4 is configured to control the second gold finger to cut off the power supply signal through the electronic fuse in response to receiving the hot-pull signal from the detection module 3.
In some embodiments, the detection module 3 is a complex programmable logic device, the control module 4 is a field programmable gate array, and the complex programmable logic device and the field programmable gate array are connected and communicated through a serial general input/output bus.
The following further illustrates embodiments of the invention in accordance with the embodiments shown in fig. 2 and 3.
In fig. 2, the management board and the golden finger crimping connector are on the left, and the main board and the golden finger at the board end are on the right, and are clamped together by the crimping connector to be kept stable. The edge of the golden finger connector is implanted with a spring and a plastic conical protrusion buckle, and the spring ensures that the conical protrusion can be accurately butted with the groove in order to ensure that a force is applied from top to bottom when a golden finger is inserted; and there is a sound while on the card, indicating that a section of golden finger is successfully docked.
Fig. 3 shows a set of 3 different length gold fingers with guide rails, tapered grooves. The longest design is GND (ground), the middle length is Signal (data) and Power (Power), and the shortest is PRSNT (Signal in place). A guide rail is designed at the corresponding part of the edge of the golden finger, so that the fool-proof effect is facilitated, and the conical buckle slides in; the dotted line part is a segment line, and a conical groove is designed at the intersection part of the segment line and the guide rail. It can be seen that the shortest gold finger is less long than the tapered recess, which results in that the second gold finger will not conduct when only half the group of gold fingers is inserted.
Referring to fig. 4, in the standby time sequence of the motherboard STBY, P3V3_ RGM and P1V0_ STBY are only supplied to the BMC, and under the condition that the normal power-up of the motherboard is not affected, a set of FPGA chips is separately designed to control the power-up of the two powers. Other power to the BMC is controlled by EFuse (electronic fuse) and then connected to the connector. When the connector is butted with the golden finger, the PRSNT signal is used for the CPLD of the mainboard to identify whether the management board is in place; adding an FPGA (field programmable gate array), wherein the CPLD and the FPGA communicate through an SGPIO (serial general input output bus); logic design is added in the FPGA to simulate BMC power-on delay control EFuse [3:0] _ EN, P3V3_ RGM _ EN and P1V0_ STBY _ EN; the P3V3_ RGM and the P1V0_ STBY _ PWRGOOD signals pass through an AND gate circuit, are accessed to the FPGA to monitor whether two power supplies to the BMC are normal or not, and simultaneously output a PWR _ OK signal which is supplied to the BMC through a connector for monitoring and recording the power supply.
According to the invention, the two-section connector is designed, and the hot-plugging golden finger is made into a sectional type and is respectively butted with the golden finger connector. During hot addition, the connector is matched with the golden finger, the MB CPLD judges that the management board is in place through the PRSNT _ N low level, and after the MB CPLD is communicated with the FPGA, the logic in the FPGA delays and pushes a power supply signal, so that the mainboard can provide a time sequence required by normal power-on of the BMC; when the heat is removed, the PRSNT _ N Signal is changed into high level by pulling out the first section of the golden finger, the high level is detected by the MB CPLD and is communicated to the FPGA, all Power signals are cut off, the second section of the golden finger is pulled out, and GND, Power and Signal are removed. The hot plug operation of carrying on of using circuit collocation connector design automatic identification from this, removable management board when server steady operation, special structural design guarantees that the connector inserts stably and firm.
As can be seen from the above embodiments, the hot plug connection device provided in the embodiments of the present invention, through using the connector, has one side fixedly connected to the management board, and the other side provided with a female port for accommodating a portion of the main board, and the female port is provided with a first spring and a second spring, one end of the first spring and one end of the second spring are fixed to the inner wall of the female port, and the other end is connected to the tapered protruding buckle; the golden finger row is arranged on one side of the main board inserted into the female port, two ends of the golden finger row are provided with guide rails corresponding to the conical convex buckles in position, and conical grooves are formed in the guide rails corresponding to the first spring and the second spring; the golden finger row comprises a first golden finger with a first length and a second golden finger with a second length, wherein the first length is greater than the distance between the first spring and the second spring and the distance is greater than the second length, and the golden finger row is electrically connected to the management board through the connector; the detection module is connected to the second golden finger and is configured to send out a hot-plug signal in response to the disappearance of the in-place signal received by the management board from the second golden finger; the control module is connected to the detection module and the first golden finger, responds to the technical scheme that the hot plug signal is received from the detection module and the first golden finger is disconnected from the mainboard, can be convenient for hot plug the management board, is convenient for handle the fault, and saves economy and manpower.
In view of the above, a second aspect of the embodiments of the present invention provides an embodiment of a hot plug connection assembly that facilitates hot plug of a management board, facilitates fault handling, and is economical and labor-saving.
As shown in fig. 4, the hot plug connection assembly includes:
the hot plug connecting device;
a management board fixedly connected to the hot plug connection device;
the main board is connected to the hot plug connecting device in a pluggable mode and is configured to provide hot plug function for the management board.
As can be seen from the above embodiments, the hot plug connection assembly provided by the embodiments of the present invention, through using the connector, has one side fixedly connected to the management board, and the other side provided with a female port for accommodating a portion of the main board, wherein the female port is provided with a first spring and a second spring, one end of the first spring and one end of the second spring are fixed to the inner wall of the female port, and the other end is connected to the tapered protruding buckle; the golden finger row is arranged on one side of the main board inserted into the female port, two ends of the golden finger row are provided with guide rails corresponding to the conical convex buckles in position, and conical grooves are formed in the guide rails corresponding to the first spring and the second spring; the golden finger row comprises a first golden finger with a first length and a second golden finger with a second length, wherein the first length is greater than the distance between the first spring and the second spring and the distance is greater than the second length, and the golden finger row is electrically connected to the management board through the connector; the detection module is connected to the second golden finger and responds to the disappearance of the in-place signal received from the second golden finger to send a hot-drawing signal; the control module is connected to the detection module and the first golden finger and is configured to respond to the technical scheme that the hot plug signal is received from the detection module and the first golden finger is disconnected from the mainboard, so that the hot plug management board can be conveniently plugged, the fault can be conveniently processed, and economy and manpower are saved.
It should be particularly noted that the above hot plug connection assembly embodiment adopts the hot plug connection device embodiment to specifically describe the working process of each module, and those skilled in the art can easily think that these modules are applied to other embodiments of the hot plug connection device. Of course, since the modules in the hot plug connection apparatus embodiment may be crossed, replaced, added, or deleted, these reasonable permutation and combination changes should also belong to the scope of the present invention, and should not limit the scope of the present invention to the described embodiments.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (10)
1. A hot-pluggable connection apparatus, comprising:
the connector is fixedly connected to the management board on one side, a female opening for accommodating a part of the main board is formed in the other side, a first spring and a second spring are arranged in the female opening, one end of each of the first spring and the second spring is fixed to the inner wall of the female opening, and the other end of each of the first spring and the second spring is connected to the conical protruding buckle;
the golden finger row is arranged on one side of the main board inserted into the female port, two ends of the golden finger row are provided with guide rails corresponding to the conical convex buckles in position, and conical grooves are formed in the guide rails corresponding to the first spring and the second spring; the golden finger row comprises a first golden finger with a first length and a second golden finger with a second length, wherein the first length is larger than the distance between the first spring and the second spring and the distance is larger than the second length, and the golden finger row is electrically connected to the management board through the connector;
the detection module is connected to the second golden finger and is configured to send out a hot-drawing signal in response to the disappearance of the in-place signal received from the second golden finger to the management board;
a control module connected to the detection module and the first gold finger and configured to disconnect the first gold finger from the motherboard in response to receiving the hot-unplug signal from the detection module.
2. The apparatus of claim 1, wherein the first gold finger is configured to selectively receive a ground signal, a power signal and a data signal under the control of the control module.
3. The device of claim 2, wherein the row of golden fingers is in the first position, so that the first spring snaps the conical protrusion connected to the first spring into the conical groove arranged at the position corresponding to the second spring, so that the first golden finger is electrically connected to the management board through the connector, and the second golden finger is electrically insulated from the management board.
4. The apparatus of claim 2, wherein the row of golden fingers in the second position causes the first spring to snap the tapered protrusion connected to the first spring into the tapered groove disposed at a position corresponding to the first spring, causes the second spring to snap the tapered protrusion connected to the second spring into the tapered groove disposed at a position corresponding to the second spring, and causes the first and second golden fingers to be electrically connected to a management board through the connector.
5. The apparatus of claim 3 or 4, wherein the detection module is configured to issue a hot plug signal to the control module in response to the row of gold fingers moving from the first position to the second position causing the detection module to receive a low level from the second gold finger.
6. The apparatus of claim 5, wherein the control module is configured to control a power signal of the motherboard to provide a timing for the first golden finger to power up the management board normally in response to receiving the hot-plug signal from the detection module.
7. The apparatus of claim 3 or 4, wherein the detection module is configured to issue the hot-dip signal to the control module in response to the row of gold fingers moving from the second position to the first position causing the detection module to receive a high level from the second gold finger.
8. The apparatus of claim 7, wherein the control module is configured to control the second golden finger to cut off the power supply signal through an electronic fuse in response to receiving the hot-pull signal from the detection module.
9. The apparatus of claim 1, wherein the detection module is a complex programmable logic device, the control module is a field programmable gate array, and the complex programmable logic device and the field programmable gate array are connected and communicate with each other through a serial general purpose input output bus.
10. A hot-pluggable connection assembly, comprising:
a hot plug connection device according to any of claims 1 to 9;
a management board fixedly connected to the hot plug connection device;
a main board pluggable connected to the hot plug connection device, the main board being configured to provide hot plug functionality to the management board.
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| CN202110476174.5A CN113204509A (en) | 2021-04-29 | 2021-04-29 | Hot plug connecting device and assembly |
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| CN202110476174.5A CN113204509A (en) | 2021-04-29 | 2021-04-29 | Hot plug connecting device and assembly |
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| CN113204509A true CN113204509A (en) | 2021-08-03 |
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| US20180366847A1 (en) * | 2016-06-01 | 2018-12-20 | Huawei Technologies Co., Ltd. | Edge Connector, Circuit Board, and Connector Component |
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| CN111857246A (en) * | 2020-06-30 | 2020-10-30 | 浪潮电子信息产业股份有限公司 | Switching device of OCP network card and server |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050714A (en) * | 2022-01-13 | 2022-02-15 | 苏州浪潮智能科技有限公司 | Method, circuit, device and medium for protecting PCIE (peripheral component interface express) card power supply |
| CN114050714B (en) * | 2022-01-13 | 2022-04-22 | 苏州浪潮智能科技有限公司 | Method, circuit, device and medium for protecting PCIE (peripheral component interface express) card power supply |
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