CN115604043A - Network card, network card power supply control method and server - Google Patents
Network card, network card power supply control method and server Download PDFInfo
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- CN115604043A CN115604043A CN202211099914.9A CN202211099914A CN115604043A CN 115604043 A CN115604043 A CN 115604043A CN 202211099914 A CN202211099914 A CN 202211099914A CN 115604043 A CN115604043 A CN 115604043A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a network card, a network card power supply control method and a server. The network card comprises a network card control module, at least one network card interface, a power supply control module and at least one voltage conversion module; the first end of the network card control module is electrically connected with the mainboard controller, and the second end of the network card control module is connected with the powered device through the network card interface; the first end of the power supply control module is connected with the network card interface, and the power supply control module is used for acquiring parameter information of the powered device through the network card interface; the input end of the voltage conversion module is electrically connected with the power module of the server mainboard, the control end of the voltage conversion module is connected with the second end of the power supply control module, the output end of the voltage conversion module is connected with the network card interface, and the power supply control module is used for controlling the voltage conversion module to supply power to the powered device through the network card interface when the parameter information accords with the preset information. The technical scheme of the embodiment of the invention achieves the effect of protecting the powered device and better supplies power to the powered device through the network card.
Description
Technical Field
The invention relates to the technical field of network cards, in particular to a network card, a network card power supply control method and a server.
Background
Power Over Ethernet (POE) refers to a technology that can provide dc Power for some devices while transmitting data signals based on terminals (such as wireless lan access points or network cameras) without changing the existing Ethernet wiring infrastructure.
At present, when carrying out the POE power supply for the powered device, after the powered device inserts the network card interface, directly supply power to the powered device, can export the unable power that bears of powered device, lead to the powered device to break down easily.
Disclosure of Invention
The invention provides a network card, a network card power supply control method and a server, which aim to solve the problem that a powered device is easy to break down when the powered device is powered by Ethernet.
According to an aspect of the present invention, there is provided a network card, including: the network card control module, at least one network card interface, the power supply control module and at least one voltage conversion module;
the first end of the network card control module is electrically connected with a mainboard controller of a server mainboard, the second end of the network card control module is connected with a powered device through the network card interface, and the network card control module is used for controlling the mainboard controller to communicate with the powered device;
the first end of the power supply control module is connected with the network card interface, and the power supply control module is used for acquiring parameter information of the powered device through the network card interface; wherein the parameter information includes at least current information and impedance information;
the input end of the voltage conversion module is electrically connected with the power module of the server mainboard, the control end of the voltage conversion module is connected with the second end of the power supply control module, the output end of the voltage conversion module is connected with the network card interface, and the power supply control module is used for controlling the voltage conversion module to supply power to the powered device through the network card interface when the parameter information conforms to preset information; the power supply control module is also used for adjusting the voltage value and/or the current value corresponding to the electric signal output by the voltage conversion module according to the parameter information.
Optionally, the network card includes a plurality of network card interfaces and a voltage conversion module, and an output end of the voltage conversion module is connected to the plurality of network card interfaces;
or the number of the network card interfaces is the same as that of the voltage conversion modules, and the network card interfaces are connected with the voltage conversion modules in a one-to-one correspondence manner.
Optionally, the network card further comprises an electrostatic protection module;
the output end of the voltage conversion module is connected with the network card interface through the electrostatic protection module.
Optionally, the network card further comprises a gold finger;
the first end of the network card control module is electrically connected with the mainboard controller through the golden finger;
the input end of the voltage conversion module is electrically connected with the power supply module through the golden finger.
Optionally, the network card interface is connected to the powered device through six types of network cables.
According to another aspect of the present invention, a network card power supply control method is provided, where the network card includes a network card control module, at least one network card interface, a power supply control module, and at least one voltage conversion module; the first end of the network card control module is connected with a mainboard controller of a server mainboard, and the second end of the network card control module is connected with a powered device through the network card interface; the first end of the power supply control module is connected with the network card interface; the input end of the voltage conversion module is connected with a power module of the server mainboard, the control end of the voltage conversion module is connected with the second end of the power supply control module, and the output end of the voltage conversion module is connected with the network card interface;
the network card power supply control method is executed by the power supply control module;
the network card power supply control method comprises the following steps:
acquiring parameter information of the powered device through the network card interface; wherein the parameter information includes at least current information and impedance information;
and when the parameter information accords with preset information, controlling a voltage conversion module to supply power to the powered device through the network card interface, and adjusting a voltage value and/or a current value corresponding to an electric signal output by the voltage conversion module according to the parameter information.
Optionally, before controlling the voltage conversion module to supply power to the powered device through the network card interface, the method further includes:
applying a second test voltage to the powered device;
acquiring a second current value of the powered device, and determining the power consumption level of the powered device according to the second current value;
the control voltage conversion module supplies power to the powered device through the network card interface, and adjusts a voltage value and/or a current value corresponding to an electric signal output by the voltage conversion module according to the parameter information, and the control voltage conversion module comprises:
determining a target power required by the powered device according to a power consumption level of the powered device;
and adjusting a voltage value and/or a current value corresponding to the electric signal output by the voltage conversion module according to the target power so as to control the voltage conversion module to supply power to the powered device through the network card interface.
Optionally, the network card power supply control method further includes:
and when the connection between the powered device and the network card interface is disconnected or the powered device fails, controlling the voltage conversion module to stop outputting the electric signal to the network card interface.
According to another aspect of the present invention, there is provided a server, including a server motherboard and the network card according to any embodiment of the present invention; the server mainboard comprises a mainboard controller and a power supply module;
the mainboard controller is electrically connected with a first end of a network card control module of the network card, a second end of the network card control module is connected with a powered device through a network card interface of the network card, and the mainboard controller is used for communicating with the powered device through the network card control module;
the power supply module is electrically connected with the input end of the voltage conversion module of the network card and is used for inputting power supply voltage for the voltage conversion module.
According to the technical scheme of the embodiment of the invention, after the powered device is connected to the network card interface, the power supply control module acquires the parameter information of the powered device through the network card interface, and controls the voltage conversion module to supply power to the powered device when the parameter information is determined to accord with the preset information; when the parameter information of the powered device is inconsistent with the preset information, the power supply control module controls the voltage conversion module not to output the electric signal; when the powered device does not support Ethernet power supply, the output electric signal can be prevented from damaging the powered device, the powered device is prevented from being broken down, and the effect of protecting the powered device is achieved. And the power supply control module can control the voltage value and/or the current value of the electric signal output by the voltage conversion module according to the acquired parameter information of the powered device, so that the voltage value and the current value of the electric signal output by the voltage conversion module meet the power supply requirement of the powered device, the power is supplied to the powered device better, and the fault of the powered device caused by the fact that the output electric signal is not matched with the powered device is avoided. The technical scheme of the embodiment of the invention solves the problem that the power receiving equipment is easy to break down when the power receiving equipment is powered by Ethernet, achieves the effect of protecting the power receiving equipment, and realizes better power supply for the power receiving equipment through the network card.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a network card according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another network card according to an embodiment of the present invention;
fig. 3 is a flowchart of a network card power supply control method according to an embodiment of the present invention;
fig. 4 is a flowchart of another network card power supply control method according to an embodiment of the present invention;
fig. 5 is a flowchart of another network card power supply control method according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of a network card according to an embodiment of the present invention, and referring to fig. 1, a network card 100 includes: a network card control module 110, at least one network card interface 120, a power supply control module 130 and at least one voltage conversion module 140; a first end of the network card control module 110 is electrically connected to the motherboard controller 210 of the server motherboard 200, a second end of the network card control module 110 is connected to the powered device 300 through the network card interface 120, and the network card control module 110 is configured to control the motherboard controller 210 to communicate with the powered device 300; a first end of the power supply control module 130 is connected to the network card interface 120, and the power supply control module 130 is configured to obtain parameter information of the powered device 300 through the network card interface 120; wherein the parameter information at least comprises current information and impedance information; the input end of the voltage conversion module 140 is electrically connected to the power module 220 of the server motherboard 200, the control end of the voltage conversion module 140 is connected to the second end of the power supply control module 130, the output end of the voltage conversion module 140 is connected to the network card interface 120, and the power supply control module 130 is configured to control the voltage conversion module 140 to supply power to the powered device 300 through the network card interface 120 when the parameter information conforms to the preset information; the power supply control module 130 is further configured to adjust a voltage value and/or a current value corresponding to the electrical signal output by the voltage conversion module 140 according to the parameter information.
The network card control module 110 includes, for example, a gigabit ethernet control chip, and the network card control module 110 has a single-bus multi-port topology structure, and can convert a signal sent by the motherboard controller 210 into an ethernet signal, and send the ethernet signal to the powered device 300 through the network card interface 120, thereby controlling the motherboard controller 210 to perform ethernet communication with the powered device 300. The power receiving apparatus 300 includes, for example, an apparatus such as a network camera. The network card interface 120 is, for example, an RJ45 (Registered Jack 45) crystal interface. The voltage conversion module 140 includes, for example, a voltage boosting circuit or a voltage dropping circuit, and the voltage conversion module 140 may convert the voltage value output by the power supply module 220 to provide a suitable power supply voltage for the powered device 300. The preset information is, for example, at least one of impedance information, current information, voltage information and power information of the power over ethernet device. When the network card 100 is powered on, the network card meets the 802.af standard and the 802.at standard, the power output by the network card interface 120 can reach 25.5W, for example, and the network card interface can be applied to industrial field visual detection servers and devices, visual field clients, fast mobile ethernet data transmission devices and the like, and is also suitable for common servers. The power supply control module 130 includes, for example, a control chip SD4924S, and has functions of detection, classification, surge current limiting, and the like; the control chip is internally provided with under-voltage protection and over-temperature protection and provides a good power supply signal with high level.
Specifically, after the powered device 300 is connected to the network card interface 120, the power supply control module 130 acquires parameter information of the powered device 300 through the network card interface 120, for example, at least one of voltage information, current information, power information, and impedance information of the powered device 300 is acquired, and the power supply control module 130 compares the parameter information of the powered device 300 with preset information, for example, compares a power supply value required by the powered device 300 with a preset power value, or compares an impedance value of the powered device 300 with a preset impedance value; when the power supply control module 130 determines that the power supply value required by the powered device 300 is close to the preset power value or determines that the impedance value of the powered device 300 is close to the preset impedance value, it is determined that the powered device 300 supports ethernet power supply, and the power supply control module 130 controls the voltage conversion module 140 to supply power to the powered device 300, so that the power is supplied to the powered device 300 by using a network card without arranging an additional power supply module for the powered device 300, resources are saved, and cost is saved; when the user uses the power receiving device 300, the user does not need to connect a plurality of connecting wires, and user experience is improved. When the power supply control module 130 determines that the parameter information does not match the preset information, the power supply control module 130 controls the voltage conversion module 140 not to output the electrical signal. Whether the accessed powered device 300 supports power over ethernet is predetermined by the power control module 130, and when the powered device 300 supports power over ethernet, the voltage conversion module 140 is controlled to supply power to the powered device 300, so that when the powered device 300 does not support power over ethernet, the output electrical signal may damage the powered device 300, thereby preventing the powered device 300 from being out of order and achieving the effect of protecting the powered device 300.
Also, the power supply control module 130 may control a voltage value and/or a current value of the electrical signal output by the voltage conversion module 140 according to the acquired parameter information of the power receiving apparatus 300. For example, the power supply control module 130 controls the voltage value of the electrical signal output by the voltage conversion module 140 according to the voltage information required for power supply by the power receiving apparatus 300; alternatively, the power supply control module 130 controls the current value of the electrical signal output by the voltage conversion module 140 according to the current information required for power supply by the power receiving apparatus 300; alternatively, the power supply control module 130 controls the voltage value and the current value of the electrical signal output by the voltage conversion module 140 according to the power information required by the powered device 300, so as to better supply power to the powered device 300 and avoid the failure of the powered device 300 caused by the mismatching between the output electrical signal and the powered device 300.
According to the technical scheme of the embodiment, after the powered device is connected to the network card interface, the power supply control module acquires parameter information of the powered device through the network card interface, and controls the voltage conversion module to supply power to the powered device when the parameter information is determined to be in accordance with preset information; when the parameter information of the powered device does not accord with the preset information, the power supply control module controls the voltage conversion module not to output an electric signal; when the powered device does not support Ethernet power supply, the output electric signal can be prevented from damaging the powered device, the powered device is prevented from being broken down, and the effect of protecting the powered device is achieved. And the power supply control module can control the voltage value and/or the current value of the electric signal output by the voltage conversion module according to the acquired parameter information of the powered device, so that the voltage value and the current value of the electric signal output by the voltage conversion module meet the power supply requirement of the powered device, the power is supplied to the powered device better, and the fault of the powered device caused by the fact that the output electric signal is not matched with the powered device is avoided. The technical scheme of this embodiment has solved when carrying out the ethernet power supply for the powered device, and the problem that the powered device breaks down easily has reached the effect of protection powered device, has realized that better supplying power for the powered device through the network card.
Fig. 2 is a schematic structural diagram of another network card according to an embodiment of the present invention, and optionally, referring to fig. 2, the network card 100 includes a plurality of network card interfaces 120 and a voltage conversion module 140, and an output end of the voltage conversion module 140 is connected to the plurality of network card interfaces 120.
Specifically, the network card 100 includes a plurality of network card interfaces 120, so that the network card 100 can communicate with a plurality of powered devices 300 at the same time, and can supply power to the plurality of powered devices 300 at the same time, so as to better receive slot resources of a motherboard. One voltage conversion module 140 is arranged, so that the space of the network card 100 can be saved, and the manufacturing cost of the network card 100 can be reduced.
In another embodiment, the number of the network card interfaces 120 is the same as that of the voltage conversion modules 140, and the network card interfaces 120 are connected to the voltage conversion modules 140 in a one-to-one correspondence manner.
Specifically, by setting the network card interface 120 to be connected with the voltage conversion modules 140 in a one-to-one correspondence manner, different voltage conversion modules 140 can output different voltage signals, so as to supply power to the powered devices 300 with different power supply requirements, meet the requirements of different powered devices 300, and improve the applicability of the network card 100.
Optionally, referring to fig. 2, the network card 100 further includes an electrostatic protection module 150; the output terminal of the voltage conversion module 140 is connected to the network card interface 120 through the electrostatic protection module 150.
Specifically, by setting the electrostatic protection module 150, interference of static electricity to the communication signal and the power supply signal of the network card interface 120 can be avoided, damage of the power receiving device 300 by the static electricity is avoided, and an effect of further protecting the power receiving device 300 is achieved. The network card 100 may further include a short-circuit protection module to prevent the power supply circuit from being damaged by the power receiving device 300 due to a short circuit.
Optionally, referring to fig. 2, the network card 100 further includes gold fingers 160; the first end of the network card control module 130 is electrically connected with the motherboard controller 210 through the gold finger 160; the input terminal of the voltage conversion module 140 is electrically connected to the power supply module 220 through the gold finger 160.
Specifically, the gold finger 160 has high conductivity, and does not cause signal loss, and the gold material has very high ductility, so that the contact area between the contacts can be larger under appropriate pressure, thereby reducing the contact resistance and improving the signal transmission efficiency. Therefore, by providing the gold finger 160, the efficiency and accuracy of communication signal and electric signal transmission can be improved.
Alternatively, referring to fig. 2, the network card interface 120 is connected to the powered device 300 through a six-type network line L1.
Specifically, a category six network cable (CAT 6) is one of network cables, that is, a cable conforming to the CAT-6 standard, and has a transmission rate of 1000Mbps, a long transmission distance, and a small transmission loss; by using the six types of network cables L1 to transmit the communication signal and the power supply signal, the accuracy of transmission can be ensured, and power can be supplied to the power receiving apparatus 300.
Fig. 3 is a flowchart of a network card power supply control method according to an embodiment of the present invention, and referring to fig. 1 and fig. 3, the network card power supply control method is executed by a power supply control module;
the network card power supply control method comprises the following steps:
s401, acquiring parameter information of the powered device through a network card interface; wherein the parameter information includes at least current information and impedance information.
Specifically, after the powered device 300 accesses the network card interface 120, the power supply control module 130 collects parameter information of the powered device 300 through the network card interface 120, for example, collects at least one of voltage information, current information, power information, and impedance information of the powered device 300.
And S402, when the parameter information accords with preset information, controlling the voltage conversion module to supply power to the powered device through the network card interface, and adjusting a voltage value and/or a current value corresponding to the electric signal output by the voltage conversion module according to the parameter information.
Specifically, the power supply control module 130 compares parameter information of the powered device 300 with preset information, for example, compares a power supply value required by the powered device 300 with a preset power value, or compares an impedance value of the powered device 300 with a preset impedance value; when the power supply control module 130 determines that the power supply value required by the powered device 300 is close to the preset power value or determines that the impedance value of the powered device 300 is close to the preset impedance value, it is determined that the powered device 300 supports ethernet power supply, and the power supply control module 130 controls the voltage conversion module 140 to supply power to the powered device 300, so that the power is supplied to the powered device 300 by using a network card without setting an additional power supply device for the powered device 300, resources are saved, and cost is saved; when the user uses the power receiving device 300, the user does not need to connect a plurality of connecting wires, and user experience is improved. When the power supply control module 130 determines that the parameter information does not match the preset information, the power supply control module 130 controls the voltage conversion module 140 not to output the electrical signal. Whether the accessed powered device 300 supports the power over ethernet is judged in advance by the power supply control module 130, and when the powered device 300 supports the power over ethernet, the voltage conversion module 140 is controlled to supply power to the powered device 300, so that the output electric signal is prevented from damaging the powered device 300 when the powered device 300 does not support the power over ethernet, the powered device 300 is prevented from being out of order, and the effect of protecting the powered device 300 is achieved.
Also, the power supply control module 130 may control a voltage value and/or a current value of the electrical signal output by the voltage conversion module 140 according to the acquired parameter information of the power receiving apparatus 300. For example, the power supply control module 130 controls the voltage value of the electrical signal output by the voltage conversion module 140 according to the voltage information required for power supply by the power receiving apparatus 300; alternatively, the power supply control module 130 controls the current value of the electrical signal output by the voltage conversion module 140 according to the current information required for power supply by the power receiving apparatus 300; or, the power supply control module 130 controls the voltage value and the current value of the electrical signal output by the voltage conversion module 140 according to the power information required by the power receiving apparatus 300, so as to better supply power to the power receiving apparatus 300 and avoid the failure of the power receiving apparatus 300 caused by the mismatching of the output electrical signal and the power receiving apparatus 300.
Fig. 4 is a flowchart of another network card power supply control method according to an embodiment of the present invention, and referring to fig. 1 and 4, the network card power supply control method includes:
s501, a first test voltage is applied to the powered device.
Specifically, the first test voltage is small, and damage to the powered device 300 is avoided if parameter information and power supply requirements of the powered device 300 are clarified. For example, the power supply control module 130 first applies a small test voltage, for example, 2.5V; a first, smaller test voltage, for example 10V, is applied to the powered device 300 to compensate for the voltage loss due to the impedance on the network cable.
S502, acquiring a first current value of the powered device, and calculating an impedance value of the powered device according to the first current value and the first test voltage.
Specifically, after applying the first test voltage to the power receiving apparatus 300, the first current value of the power receiving apparatus 300 is acquired, for example, by a current sensor or other apparatus, or the power supply control module 130 directly acquires the first current value of the power receiving apparatus 300. The impedance value of the powered device can be calculated according to the first current value and the first test voltage.
And S503, when the difference value between the impedance value and the preset impedance value is smaller than or equal to the preset difference value, controlling the voltage conversion module to supply power to the powered device through the network card interface, and adjusting the voltage value and/or the current value corresponding to the electric signal output by the voltage conversion module according to the parameter information.
Specifically, the preset impedance value is, for example, an impedance value of a device supporting power over ethernet. If the difference between the impedance value and the preset impedance value is smaller than or equal to the preset difference, which indicates that the impedance value is close to the preset impedance value, it is determined that the powered device 300 is a device supporting power over ethernet, and the power supply control module 130 controls the voltage conversion module 140 to output the electrical signal, so as to supply power to the powered device 300. In addition, the power supply control module 130 adjusts the voltage value and/or the current value of the electrical signal output by the voltage conversion module 140 according to the parameter information of the powered device 300, so as to better supply power to the powered device 300 and avoid the failure of the powered device 300 caused by the mismatching of the output electrical signal and the powered device 300.
Fig. 5 is a flowchart of another network card power supply control method according to an embodiment of the present invention, and referring to fig. 1 and fig. 5, the network card power supply control method includes:
s601, applying a first test voltage to the powered device.
S602, obtain a first current value of the powered device, and calculate an impedance value of the powered device according to the first current value and the first test voltage.
And S603, when the difference between the impedance value and the preset impedance value is smaller than or equal to the preset difference, applying a second test voltage to the powered device.
Specifically, after determining that the powered device 300 is a device supporting power over ethernet, a second test voltage is applied to the powered device 300, where the second test voltage is, for example, a voltage signal of 15V to 20V, or a voltage signal with another voltage value, and this embodiment is not limited thereto.
S604, obtaining a second current value of the powered device, and determining a power consumption level of the powered device according to the second current value.
Specifically, after the second test voltage is applied to the power receiving apparatus 300, a second current value of the power receiving apparatus 300 is acquired, and the power consumption level of the power receiving apparatus 300 is determined according to the magnitude of the second current value. For example, the larger the second current value, the larger the power consumption level of the power receiving apparatus 300.
And S605, determining the target power required by the powered device according to the power consumption level of the powered device.
Specifically, the power supply power required by the power receiving apparatus 300 of different power consumption levels is different, and the target power required by the power receiving apparatus 300 can be determined according to the power consumption level of the power receiving apparatus 300, so as to supply power to the power receiving apparatus 300 according to the power supply requirement of the power receiving apparatus 300.
And S606, adjusting a voltage value and/or a current value corresponding to the electric signal output by the voltage conversion module according to the target power so as to control the voltage conversion module to supply power to the powered device through the network card interface.
Specifically, a current value and a voltage value required by the powered device 300 are determined according to the target power, so as to adjust the voltage value and the current value of the electrical signal output by the voltage conversion module 140, thereby providing an appropriate power supply signal to the powered device 300; the current value or the voltage value of the electric signal is prevented from being large, so that the power receiving equipment 300 is prevented from being damaged; it is also possible to avoid that the current value or the voltage value of the electric signal is small, resulting in the power receiving apparatus 300 not being able to operate normally.
On the basis of the foregoing embodiment, optionally, the network card power supply control method further includes:
and when the connection between the powered device and the network card interface is disconnected or the powered device fails, controlling the voltage conversion module to stop outputting the electric signal to the network card interface.
Specifically, when the power supply control module 130 detects that the powered device 300 is disconnected from the network card interface 120, for example, when it detects that power consumption is small, the voltage conversion module 140 is controlled to stop outputting the electrical signal to the network card interface 120, so as to reduce energy loss. Or, when it is detected that the power consumption of the powered device 300 is large, that is, when a short circuit or overload occurs, the powered device 300 fails, and the power supply control module 130 controls the voltage conversion module 140 to stop outputting the electrical signal to the network card interface 120, so as to achieve the effect of protecting the circuit and the network card 100.
The technical scheme of the embodiment of the invention also provides a server, which comprises a server mainboard and the network card provided by any embodiment of the invention; the server mainboard comprises a mainboard controller and a power supply module; the mainboard controller is electrically connected with a first end of a network card control module of the network card, a second end of the network card control module is connected with the powered device through a network card interface of the network card, and the mainboard controller is used for communicating with the powered device through the network card control module; the power supply module is electrically connected with the input end of the voltage conversion module of the network card and is used for inputting power supply voltage for the voltage conversion module.
The server provided by the embodiment includes the network card provided by any of the above embodiments, and the implementation principle and technical effect of the server provided by the embodiment and the network card are similar, and are not described herein again.
It should be understood that various forms of the flows shown above, reordering, adding or deleting steps, may be used. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired result of the technical solution of the present invention can be achieved.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A network card, comprising: the network card control module, at least one network card interface, the power supply control module and at least one voltage conversion module;
the first end of the network card control module is electrically connected with a mainboard controller of a server mainboard, the second end of the network card control module is connected with a powered device through the network card interface, and the network card control module is used for controlling the mainboard controller to communicate with the powered device;
the first end of the power supply control module is connected with the network card interface, and the power supply control module is used for acquiring parameter information of the powered device through the network card interface; wherein the parameter information includes at least current information and impedance information;
the input end of the voltage conversion module is electrically connected with the power module of the server mainboard, the control end of the voltage conversion module is connected with the second end of the power supply control module, the output end of the voltage conversion module is connected with the network card interface, and the power supply control module is used for controlling the voltage conversion module to supply power to the powered device through the network card interface when the parameter information conforms to preset information; the power supply control module is also used for adjusting the voltage value and/or the current value corresponding to the electric signal output by the voltage conversion module according to the parameter information.
2. The network card of claim 1,
the network card comprises a plurality of network card interfaces and a voltage conversion module, and the output end of the voltage conversion module is connected with the network card interfaces;
or the number of the network card interfaces is the same as that of the voltage conversion modules, and the network card interfaces are connected with the voltage conversion modules in a one-to-one correspondence manner.
3. The network card of claim 1, further comprising an electrostatic protection module;
the output end of the voltage conversion module is connected with the network card interface through the electrostatic protection module.
4. The network card of claim 1, further comprising a gold finger;
the first end of the network card control module is electrically connected with the mainboard controller through the golden finger;
the input end of the voltage conversion module is electrically connected with the power supply module through the golden finger.
5. The network card of claim 1, wherein the network card interface is connected to the powered device via a six-type network cable.
6. A network card power supply control method is characterized in that the network card comprises a network card control module, at least one network card interface, a power supply control module and at least one voltage conversion module; the first end of the network card control module is connected with a mainboard controller of a server mainboard, and the second end of the network card control module is connected with a powered device through the network card interface; the first end of the power supply control module is connected with the network card interface; the input end of the voltage conversion module is connected with the power module of the server mainboard, the control end of the voltage conversion module is connected with the second end of the power supply control module, and the output end of the voltage conversion module is connected with the network card interface;
the network card power supply control method is executed by the power supply control module;
the network card power supply control method comprises the following steps:
acquiring parameter information of the powered device through the network card interface; wherein the parameter information includes at least current information and impedance information;
and when the parameter information accords with preset information, controlling a voltage conversion module to supply power to the powered device through the network card interface, and adjusting a voltage value and/or a current value corresponding to an electric signal output by the voltage conversion module according to the parameter information.
7. The method of claim 6, wherein obtaining the parameter information of the powered device through the network card interface comprises:
applying a first test voltage to the powered device;
acquiring a first current value of the powered device, and calculating an impedance value of the powered device according to the first current value and the first test voltage;
the parameter information conforms to preset information, including:
and the difference value between the impedance value and the preset impedance value is less than or equal to the preset difference value.
8. The method of claim 6, further comprising, before controlling the voltage conversion module to power the powered device via the network card interface:
applying a second test voltage to the powered device;
acquiring a second current value of the powered device, and determining the power consumption level of the powered device according to the second current value;
the control voltage conversion module supplies power to the powered device through the network card interface, and adjusts a voltage value and/or a current value corresponding to an electric signal output by the voltage conversion module according to the parameter information, and the control voltage conversion module comprises:
determining a target power required by the powered device according to a power consumption level of the powered device;
and adjusting a voltage value and/or a current value corresponding to the electric signal output by the voltage conversion module according to the target power so as to control the voltage conversion module to supply power to the powered device through the network card interface.
9. The method of claim 6, further comprising:
and when the connection between the powered device and the network card interface is disconnected or the powered device fails, controlling the voltage conversion module to stop outputting the electric signal to the network card interface.
10. A server, comprising a server motherboard and the network card of any one of claims 1-5; the server mainboard comprises a mainboard controller and a power supply module;
the mainboard controller is electrically connected with a first end of a network card control module of the network card, a second end of the network card control module is connected with a powered device through a network card interface of the network card, and the mainboard controller is used for communicating with the powered device through the network card control module;
the power supply module is electrically connected with the input end of the voltage conversion module of the network card and is used for inputting power supply voltage for the voltage conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211099914.9A CN115604043A (en) | 2022-09-07 | 2022-09-07 | Network card, network card power supply control method and server |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211099914.9A CN115604043A (en) | 2022-09-07 | 2022-09-07 | Network card, network card power supply control method and server |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116346511A (en) * | 2023-05-29 | 2023-06-27 | 深圳市网联天下科技有限公司 | Power supply system for POE control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116346511A (en) * | 2023-05-29 | 2023-06-27 | 深圳市网联天下科技有限公司 | Power supply system for POE control device |
| CN116346511B (en) * | 2023-05-29 | 2023-08-08 | 深圳市网联天下科技有限公司 | Power supply system for POE control device |
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