CN109062392B - Equipment, method and system for automatically switching power supply of server board card - Google Patents
Equipment, method and system for automatically switching power supply of server board card Download PDFInfo
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- CN109062392B CN109062392B CN201811081463.XA CN201811081463A CN109062392B CN 109062392 B CN109062392 B CN 109062392B CN 201811081463 A CN201811081463 A CN 201811081463A CN 109062392 B CN109062392 B CN 109062392B
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- G06F1/26—Power supply means, e.g. regulation thereof
Abstract
The invention discloses a device for automatically switching power supply of a server board card, which comprises: the power supply control circuit is used for receiving a starting signal of the server mainboard and an Aux power supply signal of the server power supply board; the Aux power supply signal is converted into a Core power supply signal required by the mainboard when the starting signal of the server mainboard is effective, and a control signal is output to the power supply selection circuit; the power supply selection circuit is used for selecting the Core power supply signal to be output according to the control signal; otherwise, the Aux power supply signal is output. By utilizing the equipment, the on-off state can be automatically detected, the power supply switching time is reduced, and the power supply switching speed is improved. The invention also discloses a method and a system for automatically switching the power supply of the server board card.
Description
Technical Field
The invention relates to the technical field of servers, in particular to equipment, a method and a system for automatically switching power supply of a server board card.
Background
With the rapid development of big data and internet technology, the development and evolution of servers are becoming more and more important. For a server with an x86 architecture proposed by intel corporation, in a non-power-on state, a server board card can still supply power to some module components to ensure that the functions of the server are normally realized in a power-off state. For example, the network card part can directly wake up the link function of the network card of the server through the network in the non-power-on state.
Therefore, when the server board card is powered on, two power supply modes of power supply in a shutdown mode and power supply in a startup mode exist, wherein the shutdown power supply means supplies power to part of the modules of the server board card in the shutdown state of the server, and the startup power supply means supplies power to the server board card in the startup state of the server. At present, for the switching between the two power supply modes, a BMC (Baseboard Management Controller) and a CPLD (Complex programmable logic device) are generally used to obtain the operating state of the server, and after the server is determined to be powered on, a switching control signal is output to the power supply switching line to complete the power supply switching.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides equipment, a method and a system for automatically switching power supply of a server board card, which can automatically detect the on-off state, reduce the power supply switching time and improve the power supply switching speed.
The invention provides equipment for automatically switching power supply of a server board card, which comprises:
the power supply control circuit is used for receiving a starting signal of the server mainboard and an Aux power supply signal of the server power supply board; the Aux power supply signal is converted into a Core power supply signal required by the mainboard when the starting signal of the server mainboard is effective, and a control signal is output to the power supply selection circuit;
the power supply selection circuit is used for selecting the Core power supply signal to be output according to the control signal; otherwise, the Aux power supply signal is output.
Optionally, the apparatus further includes: a signal conversion module;
the input end of the signal conversion module is connected with an enabling signal output by the power control circuit;
and the signal conversion module is used for outputting an effective level signal to the power selection circuit when the enable signal is effective so that the power selection circuit outputs the Core power supply signal.
Optionally, the power selection circuit includes: an NMOS tube and a PMOS tube;
the grid electrode of the NMOS tube and the grid electrode of the PMOS tube are both connected with the effective level signal output by the signal conversion module;
the drain electrode of the NMOS tube is connected with the Core power supply signal;
the drain electrode of the PMOS tube is connected with the Aux power supply signal;
and the source electrodes of the NMOS tube and the PMOS tube are connected together.
Optionally, the input and output characteristics of the signal conversion module are as follows:
when the input is high level, the output is high level; when the input is low, the output is low.
Optionally, the apparatus further comprises: a resistance;
the first end of the resistor is connected with the grid electrodes of the NMOS tube and the PMOS tube, and the second end of the resistor is grounded.
Optionally, the Core power supply signal is 3.3V.
The embodiment of the invention also provides a method for automatically switching power supply of the server board card, which is applied to equipment for automatically switching power supply of the server board card, and the method comprises the following steps:
receiving a starting signal of a server mainboard and an Aux power supply signal of a server power supply board; when the starting signal of the server mainboard is effective, converting the Aux power supply signal into a Core power supply signal required by the mainboard and outputting a control signal;
selecting the Core power supply signal to be output according to the control signal; otherwise, the Aux power supply signal is output.
Optionally, selecting the Core power supply signal to output according to the control signal specifically includes:
taking the control signal as an enabling signal;
and when the enable signal is effective, outputting an effective level signal, and selecting the Core power supply signal to be output according to the effective level signal.
Optionally, the Core power supply signal required by the motherboard is 3.3V.
The embodiment of the invention also provides a system for automatically switching the power supply of the server board card, which comprises the equipment for automatically switching the power supply of the server board card.
Compared with the prior art, the invention has at least the following advantages:
the equipment for automatically switching power supply of the server board card comprises a power supply control circuit and a power supply selection circuit. The power supply control circuit receives a starting signal of a server mainboard and an Aux power supply signal of a server power supply board, when the starting signal of the server mainboard is effective, namely the server mainboard is started, the starting signal serves as an enabling signal of the power supply control circuit, the Aux power supply signal is converted into a Core power supply signal required by the mainboard by the enabling power supply control circuit, the Core power supply signal is output to the power supply selection circuit, and the power supply selection circuit selects the Core power supply signal to output according to the control signal; otherwise, if the server mainboard is not started, the power supply control circuit does not perform signal conversion, and the power supply selection circuit outputs the Aux power supply signal at the moment. The equipment for automatically switching the power supply of the server board card can automatically detect the on-off state, reduce the power supply switching time and improve the power supply switching speed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of an apparatus for automatically switching power supplies of a server board card according to an embodiment of the present application;
fig. 2 is a schematic diagram of an apparatus for automatically switching power supplies of a server board card according to a second embodiment of the present application;
fig. 3 is a schematic view of a working principle of an apparatus for automatically switching power supplies of a server board card according to a third embodiment of the present application;
fig. 4 is a flowchart of a method for automatically switching power supply to a server board card according to a fourth embodiment of the present application;
fig. 5 is a structural diagram of a system for automatically switching power supplies of server boards according to a fifth embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
The first embodiment is as follows:
referring to fig. 1, this figure is a schematic view of an apparatus for automatically switching power supplies of server boards according to an embodiment of the present application.
The equipment for automatically switching power supply of the server board card comprises: a power supply control circuit 101 and a power supply selection circuit 102.
The power supply control circuit 101 is used for receiving a starting signal of a server mainboard and an Aux power supply signal of a server power supply board; and is further configured to convert the Aux power supply signal into a Core power supply signal required by the motherboard and output a control signal to the power selection circuit 102 when the power-on signal of the server motherboard is valid.
The Aux power supply signal refers to power supply still existing when the server is in a shutdown state, the Core power supply signal refers to power supply existing after the system is started, and the Core power supply signal needs to be switched to after the system is started.
Note that the Core supply signal is 3.3V. The Core power supply signal of 3.3V is mainly used for supplying power to peripheral devices of the server board card, the control chip and the like, such as a network card part, a peripheral circuit on the display card, a USB interface and a solid state disk.
When the server is in the power-on state, the server motherboard sends a power-on signal to the power control circuit 101, where the power signal may be an analog signal or a digital signal.
The power supply selection circuit 102 is used for selecting the Core power supply signal to be output according to the control signal; otherwise, the Aux power supply signal is output.
The equipment for automatically switching power supply of the server board card comprises a power supply control circuit and a power supply selection circuit. The power supply control circuit receives a starting signal of a server mainboard and an Aux power supply signal of a server power supply board, when the starting signal of the server mainboard is effective, namely the server mainboard is started, the starting signal serves as an enabling signal of the power supply control circuit, the Aux power supply signal is converted into a Core power supply signal required by the mainboard by the enabling power supply control circuit, the Core power supply signal is output to the power supply selection circuit, and the power supply selection circuit selects the Core power supply signal to output according to the control signal; otherwise, if the server mainboard is not started, the power supply control circuit does not perform signal conversion, and the power supply selection circuit outputs the Aux power supply signal at the moment. The equipment for automatically switching the power supply of the server board card can automatically detect the on-off state, reduce the power supply switching time and improve the power supply switching speed.
Example two:
based on the device for automatically switching power supply of the server board card provided by the above embodiment, in this embodiment, a signal conversion module is added to the device, and the working principle of the device is specifically described below with reference to the accompanying drawings.
Referring to fig. 2, this figure is a schematic view of an apparatus for automatically switching power supplies of server boards according to a second embodiment of the present application.
The equipment for automatically switching power supply of the server board card comprises: a power control circuit 101, a power selection circuit 102 and a signal conversion module 201.
The input end of the signal conversion module 201 is connected with the enable signal output by the power control circuit 101;
and the signal conversion module 201 is configured to output an active level signal to the power selection circuit when the enable signal is active, so that the power selection circuit outputs the Core power supply signal.
It should be noted that the power selection circuit 102 has a capability of selecting an on/off circuit, and in order to realize this capability, a gate chip is often added to the circuit, that is, a power electronic device capable of controlling the on/off of the circuit through a control signal, such as a gate turn-off thyristor, a power field effect transistor, an insulated gate bipolar transistor, etc., is controlled. When the device is conducted to the circuit, the device is burnt out due to instantaneous overlarge current or current rising rate; when the device cuts off the circuit, an excessive voltage or a voltage rising rate may cause an excessive junction capacitance current to flow inside the device to cause a false touch, and in order to avoid the above problem, the embodiment of the present application adds the signal conversion module 201 in front of the power selection circuit 102.
The input and output characteristics of the signal conversion module 201 are as follows:
when the input is high level, the output is high level; when the input is low, the output is low.
It can be seen that the signal conversion module only plays a role of protecting the circuit, does not change the level of the circuit signal, and does not affect the capability of the power selection circuit 102 to select the on/off circuit.
According to the embodiment of the application, the signal conversion module is added in the equipment for automatically switching the power supply of the server board card so as to limit instantaneous voltage and current changes caused by the power selection circuit when the circuit is switched on and switched off, and further the running loss of the power selection circuit is transferred to the signal conversion module, so that the power selection circuit is protected.
Example three:
based on the device for automatically switching power supply of the server board card introduced in the second embodiment, the working principle of the power selection circuit is specifically described below with reference to the accompanying drawings.
Referring to fig. 3, this figure is a schematic view of an operating principle of an apparatus for automatically switching power supplies of a server board card according to a third embodiment of the present application.
The power supply selection circuit of the apparatus includes: NMOS transistor and PMOS transistor. The apparatus further comprises: and resistance R.
The NMOS tube and the PMOS tube are connected in the following mode:
the grid of the NMOS tube and the grid of the PMOS tube are both connected with the effective level signal output by the signal conversion module 201;
the drain electrode of the NMOS tube is connected with the Core power supply signal;
the drain electrode of the PMOS tube is connected with the Aux power supply signal;
and the source electrodes of the NMOS tube and the PMOS tube are connected together.
The grid electrode of the NMOS tube is opened at high level, and the grid electrode of the PMOS tube is opened at low level.
The input and output characteristics of the signal conversion module 201 are:
when the input is high level, the output is high level; when the input is low, the output is low.
The first end of the resistor R is connected with the grid electrodes of the NMOS tube and the PMOS tube, and the second end of the resistor R is grounded.
The working principle of the power selection circuit is explained in detail as follows:
when the system is not started, the start signal of the server motherboard is an invalid signal, and the power control circuit 101 cannot be enabled, so that the power control circuit 101 does not perform signal conversion at this time, the power control circuit 101 outputs an invalid control signal, the invalid control signal is at a low level, the signal conversion module 201 receives the invalid control signal and outputs an invalid level signal to the power selection circuit 102, the invalid level signal is also at a low level, at this time, the gate of the NMOS transistor is closed, the gate of the PMOS transistor is opened, the PMOS transistor is turned on, the Aux power supply signal of the server power supply board is input from the drain of the PMOS transistor, and the source is output, that is, the output board card power supply signal at this time is the Aux power supply signal of the server power supply board.
When the system is started, the starting signal of the server mainboard is an effective signal, the power control circuit 101 is enabled to perform signal conversion, the power control circuit 101 converts the Aux power supply signal into a Core power supply signal required by the mainboard and outputs the Core power supply signal to the drain of the NMOS tube, and simultaneously outputs an effective control signal to the signal conversion module 201, at the moment, the effective control signal is a high level, the signal conversion module 201 receives the effective control signal and then outputs an effective level signal to the power selection circuit 102, and the effective level signal is also a high level. The grid electrode of the PMOS tube is closed when the PMOS tube receives the high-level signal, and then the Aux power supply signal output of the server power supply board is blocked, the grid electrode of the NMOS tube is opened when the NMOS tube receives the high-level signal, the Core power supply signal can be input from the drain electrode of the NMOS tube, the source electrode is output, namely the output board card power supply signal at the moment is the Core power supply signal required by the mainboard.
The equipment for automatically switching power supply of the server board card provided by the embodiment of the application can automatically perform signal conversion and automatically switch two power supply modes after the system on-off state is obtained, and by utilizing the equipment provided by the embodiment of the application, the time for switching power supply control can be shortened, and the system on-off switching can be responded more quickly.
Example four:
based on the device for automatically switching power supply of the server board card provided by the embodiment, the embodiment of the application further provides a method for automatically switching power supply of the server board card, and the following description is provided with reference to the accompanying drawings.
Referring to fig. 4, this figure is a flowchart of a method for automatically switching power supplies of server boards according to a fourth embodiment of the present application.
The method comprises the following steps:
s401: and receiving a starting signal of the server mainboard and an Aux power supply signal of the server power supply board.
S402: and judging whether the starting signal is effective or not. If it is valid, execute S403, otherwise execute S405.
S403: and converting the Aux power supply signal into a Core power supply signal required by the mainboard, and outputting a control signal.
Wherein, the Core power supply signal required by the mainboard is 3.3V.
S404: and selecting the Core power supply signal to be output according to the control signal.
Specifically, the control signal is used as an enable signal, when the enable signal is valid, an active level signal is output, and the Core power supply signal is selected to be output according to the active level signal.
S405: and outputting the Aux power supply signal.
The method for automatically switching power supply of the server board card, provided by the embodiment of the application, is characterized in that when a server mainboard is started, Aux power supply signals are converted into Core power supply signals required by the mainboard, control signals are output, and the Core power supply signals are selected according to the control signals and output. And when the server mainboard is not started, the signal conversion is not carried out, and the Aux power supply signal is output as the mainboard. By using the method for automatically switching the power supply of the server board card, the on-off state can be automatically detected, the power supply switching time is reduced, and the power supply switching speed is increased.
Example five:
based on the device for automatically switching power supply of the server board card provided by the embodiment, the embodiment of the application further provides a system for automatically switching power supply of the server board card, and the following description is provided with reference to the accompanying drawings.
Referring to fig. 5, this figure is a structural diagram of a system for automatically switching power supplies to a server board card according to a fifth embodiment of the present application.
The system 500 for automatically switching power supply of the server board card comprises: a power control circuit 101, a power selection circuit 102 and a signal conversion module 201.
The power supply control circuit 101 is used for receiving a starting signal of a server mainboard and an Aux power supply signal of a server power supply board; and is further configured to convert the Aux power supply signal into a Core power supply signal required by the motherboard and output a control signal to the power selection circuit 102 when the power-on signal of the server motherboard is valid.
And the signal conversion module 201 is configured to output an active level signal to the power selection circuit when the enable signal is active, so that the power selection circuit outputs the Core power supply signal.
The power supply selection circuit 102 is used for selecting the Core power supply signal to be output according to the control signal; otherwise, the Aux power supply signal is output.
According to the system for automatically switching power supply of the server board card, when the server is started, the starting signal is used as an enabling signal of the power supply control circuit, the enabling power supply control circuit converts an Aux power supply signal into a Core power supply signal required by a mainboard and outputs a control signal to the power supply selection circuit, and the power supply selection circuit selects the Core power supply signal to output according to the control signal; if the server is not started, the power supply control circuit does not perform signal conversion, and the power supply selection circuit outputs the Aux power supply signal at the moment. And a signal conversion module is added to limit instantaneous voltage and current changes caused when the power selection circuit is switched on and switched off, so that the running loss of the power selection circuit is transferred to the signal conversion module, and the protection of the power selection circuit is realized. The system provided by the invention can realize automatic detection of the on-off state, reduce the power supply switching time and improve the power supply switching speed.
In the foregoing embodiments, descriptions of the respective embodiments have different emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (7)
1. The utility model provides an automatic equipment of switching server integrated circuit board power supply which characterized in that includes:
the power supply control circuit is used for receiving a starting signal of the server mainboard and an Aux power supply signal of the server power supply board; the Aux power supply signal is converted into a Core power supply signal required by the mainboard when the starting signal of the server mainboard is effective, and a control signal is output to the power supply selection circuit;
the input end of the signal conversion module is connected with the enabling signal output by the power control circuit; the signal conversion module is used for outputting an active level signal to the power selection circuit when the enable signal is active so that the power selection circuit outputs the Core power supply signal; the input and output characteristics of the signal conversion module are as follows: when the input is high level, the output is high level; when the input is low level, the output is low level;
the power supply selection circuit is used for selecting the Core power supply signal to be output according to the control signal; otherwise, the Aux power supply signal is output.
2. The device for automatically switching power to a server board card of claim 1, wherein the power selection circuit comprises: an NMOS tube and a PMOS tube;
the grid electrode of the NMOS tube and the grid electrode of the PMOS tube are both connected with the effective level signal output by the signal conversion module;
the drain electrode of the NMOS tube is connected with the Core power supply signal;
the drain electrode of the PMOS tube is connected with the Aux power supply signal;
and the source electrodes of the NMOS tube and the PMOS tube are connected together.
3. The device for automatically switching power supply to a server board card according to claim 2, further comprising: a resistance;
the first end of the resistor is connected with the grid electrodes of the NMOS tube and the PMOS tube, and the second end of the resistor is grounded.
4. The device of claim 1, wherein the Core power signal is 3.3V.
5. A method for automatically switching power supply of a server board card, which is applied to the device of any one of claims 1 to 4, the method comprising:
receiving a starting signal of a server mainboard and an Aux power supply signal of a server power supply board; when the starting signal of the server mainboard is effective, converting the Aux power supply signal into a Core power supply signal required by the mainboard and outputting a control signal;
selecting the Core power supply signal to be output according to the control signal; otherwise, outputting the Aux power supply signal;
the selecting the Core power supply signal output according to the control signal specifically includes:
taking the control signal as an enabling signal; when the enable signal is effective, outputting an effective level signal, and selecting the Core power supply signal to be output according to the effective level signal; wherein, when the input is high level, the output is high level; when the input is low, the output is low.
6. The method of claim 5, wherein the Core power signal required by the motherboard is 3.3V.
7. A system for automatically switching power to a server board, the system comprising the apparatus of any one of claims 1 to 4.
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| CN109782885A (en) * | 2019-01-08 | 2019-05-21 | 佛山市伙伴联扬电子有限公司 | A kind of power supply and switching device of automatic sensing control lamp effect |
| CN110649694B (en) * | 2019-09-20 | 2023-09-22 | 广东浪潮大数据研究有限公司 | NCSI network card power supply system |
| CN114094689B (en) * | 2021-11-16 | 2023-08-08 | 苏州浪潮智能科技有限公司 | Power supply switching circuit and switching method thereof |
| CN115097924B (en) * | 2022-06-30 | 2023-07-18 | 苏州浪潮智能科技有限公司 | Multi-equipment multiplexing power supply device for server |
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