CN111399620A - Backup power supply and backup method - Google Patents
Backup power supply and backup method Download PDFInfo
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- CN111399620A CN111399620A CN202010336252.7A CN202010336252A CN111399620A CN 111399620 A CN111399620 A CN 111399620A CN 202010336252 A CN202010336252 A CN 202010336252A CN 111399620 A CN111399620 A CN 111399620A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
- G06F1/305—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations in the event of power-supply fluctuations
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
- G11C5/141—Battery and back-up supplies
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Abstract
The invention relates to the technical field of power supplies, in particular to a backup power supply and a backup method, wherein the backup power supply comprises: the power input and output control module comprises a first port, a second port and an input voltage acquisition module, wherein the first port is connected with external equipment, and the input voltage acquisition module is arranged between the second port and the charge and discharge management module and is used for acquiring input voltage for charging the energy storage medium and transmitting the acquired input voltage to the charge and discharge management module; the charging and discharging management module is used for judging whether the server is powered off or not based on the input voltage, carrying out power storage operation on the energy storage medium when the server is determined not to be powered off, and carrying out discharging operation on external equipment through the energy storage medium when the server is determined to be powered off, wherein the first power supply is a first power supply end of the server; the energy storage medium is connected with the charging and discharging management module, so that the power supply of the data needing to be protected is ensured to be switched to the energy storage medium of the backup power supply in a lossless mode when the power supply end of the external equipment is powered down, and the safety of the data is guaranteed.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a backup power supply and a backup method.
Background
A nonvolatile dual in-line memory module (NVDIMM) is a random access memory for a computer that retains its contents even when power is off, and thus, data of the memory module can be protected in the dual in-line memory module (DIMM).
However, when the power supply of the server system is abnormal, the NVDIMM needs to be powered by a standby power supply to ensure that data in the NVDIMM is protected.
At present, an energy storage module of a standby power supply generally adopts a mode of physically isolating a charging path and a discharging path, so that an interface is complex.
Therefore, how to change the isolation manner of the charging path and the discharging path to reduce the interface path of the energy storage module of the backup power source is a technical problem to be solved at present.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a backup power supply that overcomes, or at least partially solves, the above-mentioned problems.
An embodiment of the present invention provides a backup power supply, including:
the power input and output control module comprises a first port, a second port and an input voltage acquisition module, wherein the first port is connected with external equipment, and the input voltage acquisition module is arranged between the second port and the charge and discharge management module and is used for acquiring input voltage for charging an energy storage medium and transmitting the acquired input voltage to the charge and discharge management module;
the charging and discharging management module is used for judging whether the server is powered off or not based on the input voltage, carrying out power storage operation on the energy storage medium when the server is determined not to be powered off, and carrying out discharging operation on the external equipment through the energy storage medium when the server is determined to be powered off, wherein the first power supply is a first power supply end of the server;
the energy storage medium is connected with the charge and discharge management module.
Further, when determining that the server is not powered down, the charge and discharge management module controls the first port and the second port to be in a conducting state, so that a first power source stores power for the energy storage medium through the external device and the first port, the external device is connected with the first power source, and the first power source is a first power supply end of the server;
and the charging and discharging management module controls the first port and the second port to be kept in a conducting state when determining that the server is powered down, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
Further, the power input/output control module further includes: and the third port is connected with a second power supply, and the second power supply is a second power supply end of the server.
Further, when determining that the server is not powered down, the charge and discharge management module controls the first port and the second port to be in a conducting state, and controls the third port and the second port to be in a conducting state, so that the first power source stores electricity for the energy storage medium through the external device and the first port, and the second power source stores electricity for the energy storage medium through the third port;
and the charge and discharge management module controls the first port and the second port to be kept in a conducting state and controls the third port and the second port to be in a disconnecting state when determining that the server is powered down, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
Further, when determining that the server is not powered down, the charge and discharge management module controls the third port and the second port to be in a conducting state, so that the second power supply stores electricity to the energy storage medium through the third port;
and the charge and discharge management module controls the first port and the second port to be kept in a conducting state and controls the third port and the second port to be in a disconnecting state when determining that the server is powered down, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
Furthermore, a first isolation circuit is connected between the third port and the first port, and a second isolation circuit is connected between the first port and the second port.
Further, still include: and the output voltage acquisition circuit is arranged between the second port and the charge and discharge management module, is used for acquiring the output voltage between the first port and the second port and transmitting the acquired output voltage to the charge and discharge management module.
Further, the power input/output control module further includes: and the input current acquisition circuit is arranged between the second port and the charging and discharging management module and is used for acquiring the input current of the energy storage medium for power storage and transmitting the acquired input current to the charging and discharging management module.
Further, the power input/output control module further includes: and the boosting circuit is arranged between the second port and the charge and discharge management module and is used for boosting the output voltage between the first port and the second port.
Further, the power input/output control module further includes: and the voltage reduction circuit is connected between the second port and the charge and discharge management module and is used for reducing the input voltage of the energy storage medium for power storage.
Further, still include: and the upper computer is connected with the charging and discharging management module and is used for sending a control instruction to the charging and discharging management module.
In a second aspect, an embodiment of the present invention further provides a backup method, including:
collecting input voltage for charging an energy storage medium;
judging whether the server is powered off or not according to the input voltage;
and when determining that the power failure does not occur, performing power storage operation on the energy storage medium, and when determining that the power failure does not occur, performing discharge operation on the external equipment through the energy storage medium.
Further, before the collecting the input voltage for charging the energy storage medium, the method further includes:
controlling the first port and the second port of the power input/output control module to be in a conducting state, so that a first power source stores electricity for the energy storage medium through the external equipment and the first port, the external equipment is connected with the first power source, and the first power source is a first power supply end of the server;
when confirming the power down, carry out the operation of discharging through the energy storage medium external equipment includes:
and when the server is determined to be powered down, controlling the first port and the second port to be kept in a conducting state, so that the energy storage medium discharges the external equipment through a line between the second port and the first port.
Further, before the collecting the input voltage for charging the energy storage medium, the method further includes:
controlling the first port and the second port to be in a conducting state, and controlling the third port and the second port to be in a conducting state, so that the first power source stores power to the energy storage medium through the external device and the first port, and the second power source stores power to the energy storage medium through the third port, wherein the power input and output control module further comprises: the third port is connected with a second power supply, and the second power supply is a second power supply end of the server;
when confirming the power down, carry out the operation of discharging through the energy storage medium external equipment includes:
and when the server is determined to be powered down, controlling the first port and the second port to be kept in a conducting state, and controlling the third port and the second port to be in a disconnecting state, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
Further, before the collecting the input voltage for charging the energy storage medium, the method further includes:
controlling the third port and the second port to be in a conducting state, so that the second power supply stores electricity for the energy storage medium through the third port;
when confirming the power down, carry out the operation of discharging through the energy storage medium external equipment includes:
and when the server is determined to be powered down, controlling the first port and the second port to be kept in a conducting state, and controlling the third port and the second port to be in a disconnecting state, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
Further, when confirming that the power down, through the energy storage medium to external equipment carries out the operation of discharging, still include:
collecting and monitoring an output voltage between the first port and the second port;
and when the output voltage is monitored to be lower than the voltage required by the external equipment, boosting the output voltage.
Further, after the input voltage for charging the energy storage medium is collected, the method further includes:
and collecting and monitoring the input current of the energy storage medium for power storage so as to avoid overcurrent.
Further, after the input voltage for charging the energy storage medium is collected, the method further includes:
monitoring the input voltage;
and when the input voltage is monitored to be higher than the voltage required by the energy storage medium, carrying out voltage reduction processing on the input voltage.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a backup power supply, which comprises a power supply input and output control module, and comprises: the charging and discharging management module is used for judging whether the server is powered down or not based on the input voltage, carrying out power storage operation on the energy storage medium when power failure is determined not to occur, carrying out discharging operation on the external equipment through the energy storage medium when power failure is determined, and the first power supply is a first power supply end of the server; this energy storage medium, connect the charge-discharge management module, and then gather the input voltage that storage medium charges according to the input voltage collection module in the power input output control module, thereby by the input voltage that charge-discharge management module gathered based on the input voltage collection module, judge whether the server falls down, and then according to the condition of falling down of this server, carry out electric power storage or discharge operation, reduce backup power's interface route, realize the isolation of charging path and discharge path, and then guarantee that the power supply end of external equipment does not have the power loss when unusual the power supply energy storage medium that switches to backup power supplies power, the security of data in the guarantee external equipment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 shows a block diagram of a backup power supply in an embodiment of the invention;
FIG. 2 is a diagram illustrating a first application scenario of a backup power supply in an embodiment of the present invention;
FIG. 3 is a diagram illustrating a second application scenario of a backup power supply in an embodiment of the present invention;
FIG. 4 is a diagram illustrating a third application scenario of a backup power supply in an embodiment of the present invention;
FIG. 5 is a schematic diagram showing a detailed structure of a backup power supply in an embodiment of the present invention;
fig. 6 is a flowchart illustrating steps of a backup method according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides a backup power supply, which is specifically a backup power supply in a server, wherein the server comprises the backup power supply, an interface connected with an external power supply, external equipment (the external equipment can be NVDIMM (nonvolatile dual in-line memory module) or other equipment needing continuous power supply), and a power supply end for supplying power to the external equipment.
The interface supplies power to the server, the server supplies power to the external equipment through the power supply end, meanwhile, the backup power supply is charged, when the external power supply is powered off, the interface of the server is powered off, the power supply end is also powered off, at the moment, the backup power supply can be started, the external equipment is discharged, the external equipment is ensured not to be powered off, and data in the external equipment is ensured to be protected.
As shown in fig. 1, the backup power supply includes: a power input/output control module 101, a charge/discharge management module 102, and an energy storage medium 103.
Specifically, the power input/output control module 101 includes a first port 1011, a second port 1012 and an input voltage collecting module 104, wherein the first port 1011 is connected to an external device.
The input voltage collecting module 104 is disposed between the second port 1012 and the charging and discharging management module 102, and is configured to collect an input voltage for charging the energy storage medium, and transmit the collected input voltage to the charging and discharging management module 102.
The charging and discharging management module 102 is configured to determine whether the server has a power failure based on the input voltage, perform an electric power storage operation on an energy storage medium when it is determined that the server has not a power failure, perform a discharging operation on an external device through the energy storage medium when it is determined that the server has a power failure, and use the first power supply as a first power supply terminal of the server. Namely, when the server is powered off, the first power supply is powered off.
The energy storage medium 103 is connected with a charge and discharge management module.
The energy storage medium 103 is specifically a super capacitor, a hybrid capacitor or other battery energy storage media, and when the number of capacitors is large, a plurality of capacitors can be connected in series or in parallel. The charging and discharging management module 102 is used for carrying out voltage-sharing charging on the series capacitor, so that the capacitor can be protected, and the service life of the capacitor is prolonged.
The external device is specifically an NVDIMM (nonvolatile dual in-line memory module) or other devices needing continuous power supply, and when the NVDIMM receives power supply of a server and the server is powered down, the backup power supply of the NVDIMM is needed to be used for supplying power to the server.
In an optional implementation manner, when determining that the server is not powered down, the charging and discharging management module 102 controls the first port 1011 and the second port 1012 thereof to be in a conducting state, so that the first power source stores power to the energy storage medium 103 through the external device and the first port 1011, the external device is connected to the first power source, and the first power source is a first power supply end of the server.
When the charging and discharging management module 102 determines that the server is powered off (i.e. the first power supply is powered off and cannot store power for the energy storage medium 103), the first port 1011 and the second port 1012 are controlled to be kept in a conducting state, so that the energy storage medium 103 discharges for the external device through the lines of the second port 1012 and the first port 1011.
When the server is not powered down, the current flows from the first port 1011 to the second port 1012. When the server is powered down, the current flows from the second port 1012 to the first port 1011.
In an optional implementation manner, the power input/output control module 101 further includes: and a third port 1013, wherein the third port 1013 is connected to a second power supply, and the second power supply is a second power supply terminal of the server.
The second power supply and the first power supply are power supply ends of the server, and when the server is powered off, the second power supply and the first power supply are powered off simultaneously. Of course, when the server is not powered down, both the second power supply and the first power supply may supply power to the energy storage medium 103, where the first power supply supplies power to the external device.
The charging path and the discharging path are isolated by changing the current direction, so that the interface access of the energy storage module of the backup power supply is reduced.
The second power supply is provided by PCIE (a high speed serial computer expansion bus standard), SATA (a serial hardware driver interface based on the industry standard) of the server or other server hardware interfaces, and the interface can only supply power to the energy storage medium 103, and the energy storage medium 103 cannot discharge through the interface.
The first power is provided by the DIMM interface of the server, which is used to supply power to the external device and then to the energy storage medium 103 through the external device.
When the external device is powered by the backup power supply of the external device, the following application scenarios are specific.
In a first application scenario, as shown in fig. 2, when the server is not powered down, the third port 1013 and the second port 1012 are in an on state, the first port 1011 and the second port 1012 are in an off state, and the second power supply stores power to the energy storage medium 103 through the third port 1013.
At this time, if the server loses power, the charging and discharging management module 102 controls the third port 1013 and the second port 1012 to be switched from the on state to the off state, and the first port 1011 and the second port 1012 to be switched from the off state to the on state, so that the energy storage medium 103 discharges to the external device through the line between the second port 1012 and the first port 1011. And then the backup power supply of the external equipment is switched from a charging state to a discharging state, so that the external equipment is ensured not to be powered down, and the stored data of the external equipment is not lost.
In a second scenario, as shown in fig. 3, when the server is not powered down, the first port 1011 and the second port 1012 are in an on state, the third port 1013 and the second port 1012 are in an off state, and the first power source stores power to the energy storage medium 103 through the external device and the first port 1011.
At this time, if the server is powered down, the charge/discharge management module 102 controls the first port 1011 and the second port 1012 to be kept in an on state, and controls the third port 1013 and the second port 1012 to be kept in an off state. The energy storage medium 103 discharges the external device through the second port 1012 and the first port 1011 to ensure that the external device is not powered off, so that the stored data in the external device is not lost. And further realizing the switching of the backup power supply from the charging state to the discharging state.
In a third scenario, as shown in fig. 4, when the server is not powered down, the first port 1011 and the second port 1012 are in a conducting state, and the third port 1013 and the second port 1012 are in a conducting state, the first power source stores power to the energy storage medium 103 through the external device and the first port 1011, and the second power source stores power to the energy storage medium 103 through the third port 1013.
At this time, if the server is not powered down, the charging and discharging management module 102 controls the first port 1011 and the second port 1012 to be kept in a conducting state, and controls the third port 1013 and the second port 1012 to be in a disconnecting state, so that the energy storage medium 103 is discharged to the external device through the line between the second port 1012 and the first port 1011. And then the backup power supply is switched from a charging state to a discharging state, so that the external equipment is ensured not to be powered down, and the stored data of the external equipment is not lost.
In an alternative embodiment, a first isolation circuit is connected between the third port 1013 and the first port 1011, and a second isolation circuit is connected between the first port 1011 and the second port 1012.
The first isolation circuit and the second isolation circuit may be switching devices such as field effect transistors (MOSFETs) to achieve isolation of the charging and discharging lines.
In an alternative embodiment, as shown in fig. 5, the charging and discharging management module 102 determines whether the server is powered down based on the input voltage.
The specific judgment process is as follows:
the charging and discharging management module 102 compares the input voltage with a preset voltage, determines that the server is powered off when the input voltage is less than the preset voltage, and determines that the server is not powered off when the input voltage is greater than or equal to the preset voltage. At this time, when it is determined that the server is powered down, the charging and discharging management module 102 conducts the first port 1011 and the second port 1012 to supply power to the external device through the energy storage medium 103.
In an alternative embodiment, the backup power supply further comprises: the output voltage acquisition circuit 105 is disposed between the second port 1012 and the charge and discharge management module 102, and is configured to acquire an output voltage between the first port 1011 and the second port 1012 and transmit the acquired output voltage to the charge and discharge management module 102, so that the charge and discharge management module 102 monitors the output voltage.
When the charging and discharging management module 102 monitors that the output voltage is lower than the power supply voltage required by the external device, the output voltage needs to be boosted.
In an alternative embodiment, the backup power supply further comprises: and a voltage boosting circuit 107, which is provided between the second port 1012 and the charge/discharge management module 102, and is configured to boost an output voltage between the first port 1011 and the second port 1012 to boost a voltage output from the power input/output control module 101 to an external device.
In an alternative embodiment, the backup power supply further comprises: and a voltage reduction circuit 106, disposed between the second port 1012 and the charging and discharging management module 102, for performing voltage reduction processing on the input voltage, where the input voltage includes a voltage input from the power input/output control module 101 to the charging and discharging management module 102.
Because the energy storage medium 103 is a super capacitor, and the voltage bearing capability of the super capacitor is lower than the input voltage of the second power supply and/or the input voltage of the first power supply, when the energy storage medium 103 is charged, a voltage reduction circuit needs to be used to reduce the input voltage, so as to realize charging. When the energy storage medium 103 is discharged, the power supply voltage required by the external device is greater than the output voltage of the energy storage medium 103, so that when the energy storage medium 103 is discharged, the output voltage is boosted by using the boost circuit to realize the discharge.
The voltage step-down circuit 106 and the voltage step-up circuit 107 may be Buck/Boost. The power supply mainly comprises a power field effect transistor, an inductor and a controller.
In an alternative embodiment, the backup power supply further comprises: the input current collecting circuit 108 is disposed between the second port 1012 and the charging and discharging management module 102, and is configured to collect the input current for charging the energy storage medium 103, transmit the collected input current to the charging and discharging management module 102, and monitor the collected input current by the charging and discharging management module 102, so as to avoid an overcurrent phenomenon of the input current.
In an alternative embodiment, the backup power supply further comprises: and the upper computer 109 is connected with the charging and discharging management module 102, the upper computer 109 is used for sending a control instruction to the charging and discharging management module 102, and also can be used for inquiring the state of the charging and discharging condition through the upper computer 109, and the control instruction can comprise an instruction for controlling the connection or disconnection between the third port 1013 and the second port 1012 and an instruction for controlling the connection or disconnection between the first port 1011 and the second port 1012.
Specifically, the upper computer 109 may be connected to the charge and discharge management module 102 through a serial communication interface, for example, using an I2C interface.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a backup power supply, which comprises a power supply input and output control module, and comprises: the charging and discharging management module is used for judging whether the server is powered down or not based on the input voltage, carrying out power storage operation on the energy storage medium when the power failure is determined, carrying out discharging operation on the external equipment through the energy storage medium when the power failure is determined, and the first power supply is a first power supply end of the server; this energy storage medium, connect the charge-discharge management module, and then gather the input voltage that storage medium charges according to the input voltage collection module in the power input output control module, thereby by charge-discharge management module based on this input voltage, judge whether the server falls the power, and then according to the circumstances of falling the power of this server, carry out electric power storage or discharge operation, reduce the interface route of backup power, realize the isolation of charging path and discharge path, and then guarantee that the power supply end of external equipment does not have the power loss when unusual the power supply energy storage medium that switches to the backup power supplies power, ensure the security of external equipment data.
Example two
Based on the same inventive concept, the present invention further provides a backup method, which can be applied to the backup power supply shown in the embodiments of fig. 1 to 5, as shown in fig. 6, and includes:
s601, collecting input voltage for charging the energy storage medium;
s602, judging whether the server is powered down or not according to the input voltage;
and S603, carrying out power storage operation on the energy storage medium when determining that the power failure does not occur, and carrying out discharge operation on the external equipment through the energy storage medium when determining that the power failure occurs.
In an optional embodiment, before collecting the input voltage for charging the energy storage medium, the method further includes:
controlling the first port and the second port of the power input/output control module to be in a conducting state, so that a first power source stores electricity for the energy storage medium through the external equipment and the first port, the external equipment is connected with the first power source, and the first power source is a first power supply end of the server;
when confirming the power down, carry out the operation of discharging through the energy storage medium external equipment includes:
and when the server is determined to be powered down, controlling the first port and the second port to be kept in a conducting state, so that the energy storage medium discharges for the external equipment through a line between the second port and the first port, and the external equipment is ensured not to be powered off, so that the stored data in the external equipment cannot be lost. And further realizing the switching of the backup power supply from the charging state to the discharging state. .
In an optional embodiment, before collecting the input voltage for charging the energy storage medium, the method further includes:
controlling the first port and the second port to be in a conducting state, and controlling the third port and the second port to be in a conducting state, so that the first power source stores power to the energy storage medium through the external device and the first port, and the second power source stores power to the energy storage medium through the third port, wherein the power input and output control module further comprises: the third port is connected with a second power supply, and the second power supply is a second power supply end of the server;
when confirming the power down, carry out the operation of discharging through the energy storage medium external equipment includes:
and when the server is determined to be powered down, controlling the first port and the second port to be kept in a conducting state, and controlling the third port and the second port to be in a disconnecting state, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port. And then the backup power supply is switched from a charging state to a discharging state, so that the external equipment is ensured not to be powered down, and the stored data of the external equipment is not lost.
In an optional embodiment, before collecting the input voltage for charging the energy storage medium, the method further includes:
controlling the third port and the second port to be in a conducting state, so that the second power supply stores electricity for the energy storage medium through the third port;
when confirming the power down, carry out the operation of discharging through the energy storage medium external equipment includes:
and when the server is determined to be powered down, controlling the first port and the second port to be kept in a conducting state, and controlling the third port and the second port to be in a disconnecting state, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port. And then the backup power supply of the external equipment is switched from a charging state to a discharging state, so that the external equipment is ensured not to be powered down, and the stored data of the external equipment is not lost.
The external device in this embodiment is specifically an NVDIMM (nonvolatile dual in-line memory module) or other device that needs to be continuously powered on, and when the NVDIMM receives power from a server and the server is powered off, the backup power of the NVDIMM needs to be used to supply power to the server.
In an optional implementation manner, when determining that power is down, the discharging operation is performed on the external device through the energy storage medium, further including:
collecting and monitoring an output voltage between the first port and the second port;
and when the output voltage is monitored to be lower than the voltage required by the external equipment, boosting the output voltage.
In an optional embodiment, after the collecting the input voltage for charging the energy storage medium, the method further includes:
and collecting and monitoring the input current of the energy storage medium for power storage so as to avoid overcurrent.
In an optional embodiment, after the collecting the input voltage for charging the energy storage medium, the method further includes:
monitoring the input voltage;
and when the input voltage is monitored to be higher than the voltage required by the energy storage medium, carrying out voltage reduction processing on the input voltage.
By adopting any one of the backup methods, the isolation of the charging path and the discharging path is realized in the backup power supply, so that the power supply is ensured to be switched to the energy storage medium of the backup power supply in a lossless manner for supplying power when the power supply end of the external equipment is abnormally powered down, and the data safety of the external equipment is ensured.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A backup power supply, comprising:
the power input and output control module comprises a first port, a second port and an input voltage acquisition module, wherein the first port is connected with external equipment, and the input voltage acquisition module is arranged between the second port and the charge and discharge management module and is used for acquiring input voltage for charging an energy storage medium and transmitting the acquired input voltage to the charge and discharge management module;
the charging and discharging management module is used for judging whether the server is powered off or not based on the input voltage, carrying out power storage operation on the energy storage medium when the server is determined not to be powered off, and carrying out discharging operation on the external equipment through the energy storage medium when the server is determined to be powered off;
the energy storage medium is connected with the charge and discharge management module.
2. The backup power source of claim 1,
when determining that the server is not powered down, the charging and discharging management module controls the first port and the second port to be in a conducting state, so that a first power supply stores electricity for the energy storage medium through the external equipment and the first port, the external equipment is connected with the first power supply, and the first power supply is a first power supply end of the server;
and the charging and discharging management module controls the first port and the second port to be kept in a conducting state when determining that the server is powered down, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
3. The backup power source of claim 1,
the power input/output control module further comprises: and the third port is connected with a second power supply, and the second power supply is a second power supply end of the server.
4. The backup power source of claim 3,
when determining that the server is not powered down, the charge and discharge management module controls the first port and the second port to be in a conduction state, and controls the third port and the second port to be in a conduction state, so that the first power supply stores electricity for the energy storage medium through the external equipment and the first port, and the second power supply stores electricity for the energy storage medium through the third port;
and the charge and discharge management module controls the first port and the second port to be kept in a conducting state and controls the third port and the second port to be in a disconnecting state when determining that the server is powered down, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
5. The backup power source of claim 3,
when determining that the server is not powered down, the charge and discharge management module controls the third port and the second port to be in a conducting state, so that the second power supply stores electricity for the energy storage medium through the third port;
and the charge and discharge management module controls the first port and the second port to be kept in a conducting state and controls the third port and the second port to be in a disconnecting state when determining that the server is powered down, so that the energy storage medium discharges to the external equipment through a line between the second port and the first port.
6. The backup power supply of claim 3, wherein a first isolation circuit is connected between said third port and said first port, and a second isolation circuit is connected between said first port and said second port.
7. The backup power supply of any of claims 1-6, further comprising: and the output voltage acquisition circuit is arranged between the second port and the charge and discharge management module, is used for acquiring the output voltage between the first port and the second port and transmitting the acquired output voltage to the charge and discharge management module.
8. The backup power supply of any of claims 1-6, wherein said power input output control module further comprises: and the input current acquisition circuit is arranged between the second port and the charging and discharging management module and is used for acquiring the input current of the energy storage medium for power storage and transmitting the acquired input current to the charging and discharging management module.
9. The backup power supply of any of claims 1-6, wherein said power input output control module further comprises: and the boosting circuit is arranged between the second port and the charge and discharge management module and is used for boosting the output voltage between the first port and the second port.
10. A backup method, comprising:
collecting input voltage for charging an energy storage medium;
judging whether the server is powered off or not according to the input voltage;
and when determining that the power failure does not occur, performing power storage operation on the energy storage medium, and when determining that the power failure does not occur, performing discharge operation on the external equipment through the energy storage medium.
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| CN114252839A (en) * | 2021-12-16 | 2022-03-29 | 杭州粒合信息科技有限公司 | Method, system and device for monitoring power failure of acquisition terminal and storage medium |
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