A power supply device, a power supply system, and a power supply method for a server

Abstract

The application discloses a power supply device, a power supply system and a power supply method of a server, and relates to the technical field of power supplies. The power supply device comprises a power supply module and a control module. The power supply module is provided with an enable control end and a main power output end, and is used for supplying power to the server. The control module is connected with the enable control end and the server, and is configured to: in response to a power cycle instruction sent by the server, output a first control signal to the enable control end, and turn off the power output of the main power output end; after delaying for a preset time length, output a second control signal to the enable control end, and restart the power output of the main power output end. In the embodiment of the application, the control module automatically executes the power cycle operation of power-off, time delay and power-on again in response to the power cycle instruction sent by the server, so that the server can remotely enter the G3 state (mechanical off state) and automatically restore power supply without manually unplugging the power cable on site.

Description

Technical Field

[0001] This invention relates to the field of power supply technology, and in particular to a power supply device, power supply system and power supply method for a server. Background Technology

[0002] In server power management architecture, G3 state, or mechanical shutdown state, refers to the state where the server is completely powered off and all controller registers are cleared, typically achieved by unplugging the power cord. However, in existing data center environments, servers can only be in S0 state (normal operation) or S5 state (soft shutdown standby) after being installed. Critical management controllers such as the BMC (Baseboard Management Controller) and CPLD (Complex Programmable Logic Device) are continuously powered by auxiliary power supplies, and their register data cannot be cleared. This makes it impossible to remotely achieve G3 state in scenarios requiring a complete power outage, such as firmware upgrades.

[0003] In existing technologies, maintenance personnel typically need to physically go to the site to manually disconnect the power cable to put the server into G3 mode, which is inefficient and carries a significant risk of misoperation and security risks. Summary of the Invention

[0004] This invention provides a power supply device, power supply system, and power supply method for a server, in order to solve the technical problems of existing technologies that rely on manual on-site disconnection of power cords, which are inefficient and pose significant risks of misoperation and safety hazards.

[0005] In a first aspect, embodiments of the present invention provide a power supply device for a server, the power supply device comprising the following steps: A power module having an enable control terminal and a main power output terminal, the power module being used to power the server; A control module, connected to the enable control terminal and the server, is configured to: In response to the power cycling command sent by the server, a first control signal is output to the enable control terminal to turn off the power output of the main power output terminal; After a preset delay, a second control signal is output to the enable control terminal to restart the power output of the main power supply output terminal.

[0006] In some embodiments, the control module includes: The monitoring chip has a voltage detection terminal, a delay configuration terminal, and a reset output terminal. The voltage detection terminal is connected to the command output terminal of the server, the delay configuration terminal is connected to the ground terminal through a first capacitor, and the reset output terminal is connected to the auxiliary power output terminal of the power module through a first resistor. A switching circuit, wherein the input terminal of the switching circuit is connected to the reset output terminal, and the output terminal of the switching circuit is connected to the enable control terminal.

[0007] In some embodiments, the switching circuit includes: An NMOS transistor, the gate of which is connected to the reset output terminal, the source of which is grounded, and the drain of which is connected to the enable control terminal.

[0008] In some embodiments, it also includes: An RC circuit is provided between the drain of the NMOS transistor and the enable control terminal.

[0009] In some embodiments, the RC circuit includes: The second resistor has one end connected to the drain of the NMOS transistor and the other end grounded. The second capacitor is connected in parallel with the second resistor.

[0010] In some embodiments, The voltage detection terminal is connected to the auxiliary power output terminal of the power module via a third resistor.

[0011] In some embodiments, the preset duration ranges from 1.5 seconds to 2 seconds.

[0012] In some embodiments, the capacitance value of the first capacitor ranges from 0.1 μF to 10 μF.

[0013] Secondly, a server power supply system is provided, including the aforementioned server power supply device.

[0014] Thirdly, a method for powering a server is provided, using the aforementioned server power supply device, comprising the following steps: In response to the power cycle command, the first control signal is output to the enable control terminal to shut down the power output of the main power output terminal; After a preset delay, a second control signal is output to the enable control terminal to restart the power output of the main power supply.

[0015] The beneficial effects of the technical solution provided by this invention include: This invention provides a power supply device, a power supply apparatus, and a power supply method for a server. The power supply device includes a power module and a control module. The power module has an enable control terminal and a main power output terminal, and is used to supply power to the server. The control module is connected to the enable control terminal and the server, and is configured to: in response to a power cycle command sent by the server, output a first control signal to the enable control terminal to turn off the power output of the main power output terminal; and after a preset delay, output a second control signal to the enable control terminal to restart the power output of the main power output terminal. In this embodiment of the invention, the control module responds to the power cycle command sent by the server and automatically performs a power cycle operation of power-off, delayed power-on, and so on. This allows the server to remotely enter the G3 state (mechanical shutdown state) and automatically restore power supply without the need for manual on-site unplugging and plugging of power cables. Since the control module directly controls the main power output of the power module, it achieves a complete shutdown of the server's main power supply. This ensures that all baseboard management controllers and complex programmable logic devices inside the server that rely on the main power supply are completely powered off and their registers are cleared, meeting the requirement for complete power-off and reset. This improves efficiency and avoids the risks of misoperation and safety hazards caused by manual unplugging. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A circuit diagram of a server power supply device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of a power supply device in the prior art; Figure 3 A schematic diagram of a power supply device for a server provided in an embodiment of the present invention; Figure 4 A flowchart illustrating a power supply method for a server provided in an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a power supply device, power supply system, and power supply method for a server, which can solve the technical problems of existing technologies that rely on manual on-site disconnection of power cords, resulting in low efficiency and significant risks of misoperation and safety hazards.

[0020] This invention provides a power supply device for a server, see [link to relevant documentation]. Figure 1 and Figure 3 As shown, the power supply device includes a power module 1 and a control module 2. The power module 1 has an enable control terminal and a main power output terminal, and the power module 1 is used to supply power to the server 3. The control module 2 is connected to the enable control terminal and the server 3. The control module 2 is configured to: respond to a power cycle command sent by the server 3, output a first control signal to the enable control terminal to turn off the power output of the main power output terminal; after a preset delay, output a second control signal to the enable control terminal to restart the power output of the main power output terminal. In this embodiment of the invention, the control module 2 responds to the power cycle command sent by the server 3 and automatically performs a power cycle operation of power-off, delayed power-on, and so on. This allows the server 3 to remotely enter the G3 state (mechanical shutdown state) and automatically restore power supply without the need for manual on-site unplugging and plugging of power cables. Since the control module 2 directly controls the main power output of the power module 1, it achieves a complete shutdown of the main power supply of the server 3. This ensures that all baseboard management controllers and complex programmable logic devices inside the server 3 that rely on the main power supply are completely powered off and their registers are cleared, meeting the requirement for complete power-off and reset. This improves efficiency and avoids the risks of misoperation and safety hazards caused by manual unplugging.

[0021] This invention provides a power supply device for a server, comprising a power module and a control module. In this embodiment, the control module responds to a power cycle command sent by the server and automatically performs a power cycle operation of power-off, delayed power-on, and so on. This allows the server to remotely enter the G3 state (mechanical shutdown state) and automatically restore power supply without manual on-site unplugging and plugging of power cables. Since the control module directly controls the main power output of the power module, it achieves a complete shutdown of the server's main power supply. This ensures that all baseboard management controllers and complex programmable logic devices inside the server that rely on the main power supply are completely powered off and their registers are cleared, meeting the requirement for complete power-off and reset. This improves efficiency and avoids the risks of misoperation and safety hazards caused by manual unplugging.

[0022] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the control module 2 includes a monitoring chip U1 and a switching circuit. The monitoring chip U1 has a voltage detection terminal SENSE, a delay configuration terminal CT, and a reset output terminal RESET_N. The voltage detection terminal SENSE is connected to the instruction output terminal of the server 3. The delay configuration terminal CT is connected to the ground terminal through a first capacitor C1. The reset output terminal RESET_N is connected to the auxiliary power output terminal of the power module 1 through a first resistor R1. The input terminal of the switching circuit is connected to the reset output terminal RESET_N, and the output terminal of the switching circuit is connected to the enable control terminal. In this embodiment of the invention, a monitoring chip U1 is used to monitor the level status of the command output terminal of server 3 in real time. When the command output terminal outputs a power cycle command, the voltage detection terminal SENSE of the monitoring chip U1 detects the level change. After internal logic processing, a corresponding control signal is output through the reset output terminal RESET_N. Then, the switching circuit drives the enable control terminal of power module 1, thereby realizing precise control of the main power output terminal of power module 1. At the same time, the delay time can be flexibly configured through the first capacitor C1 connected to the delay configuration terminal CT, ensuring that server 3 has sufficient time to clear the register after power failure. The reset output terminal RESET_N is pulled up to the auxiliary power output terminal 13 through the first resistor R1, ensuring the level stability of the reset output terminal RESET_N in the default state. The control module 2 has a simple structure, realizes remote cyclic control of server power, and has high reliability.

[0023] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3As shown, the switching circuit includes an NMOS transistor. The gate G of the NMOS transistor is connected to the reset output terminal RESET_N, the source S of the NMOS transistor is grounded, and the drain D of the NMOS transistor is connected to the enable control terminal. In this embodiment of the invention, a single NMOS transistor is used to construct the switching circuit. The gate G of the NMOS transistor is used as the input terminal to receive the signal from the reset output terminal RESET_N. When the reset output terminal RESET_N outputs a high level, the NMOS transistor is turned on, pulling the drain D low to ground, thereby outputting a low-level enable signal to the enable control terminal. When the reset output terminal RESET_N outputs a low level, the NMOS transistor is turned off, and the drain D is in a high-impedance state. With the help of an external pull-up circuit, the enable control terminal is restored to a high level, realizing the inverting drive function of the signal. Only a single NMOS transistor is needed to complete the level conversion and drive control, resulting in fewer components, a simpler circuit, faster response speed, and higher reliability.

[0024] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the power supply device further includes an RC circuit, which is disposed between the drain D of the NMOS transistor and the enable control terminal. In this embodiment of the invention, by setting an RC circuit between the drain D of the NMOS transistor and the enable control terminal, the reliability and safety of the on / off control of the main power output terminal of the power module are ensured.

[0025] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the RC circuit includes a second resistor R2 and a second capacitor C2. One end of the second resistor R2 is connected to the drain D of the NMOS transistor, and the other end is grounded. The second capacitor C2 is connected in parallel with the second resistor R2. In this embodiment of the invention, by connecting one end of the second resistor R2 and the second capacitor C2 in parallel to the drain D of the NMOS transistor and the other end to ground, an RC parallel network is formed. When the NMOS transistor switches from on to off, the voltage at the drain D jumps from a low level to a high level. At this time, the second capacitor C2 is slowly charged through the second resistor R2 to avoid signal overshoot and electromagnetic interference caused by the sudden level change. When the NMOS transistor switches from off to on, the second capacitor C2 discharges quickly through the NMOS transistor to ensure that the enable control terminal can quickly respond to the low-level enable signal. This ensures the softening of the rising edge and the fast response of the falling edge of the enable signal, reducing electromagnetic interference while ensuring control speed. The structure is simple and has strong anti-interference ability.

[0026] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3As shown, the voltage detection terminal SENSE is connected to the auxiliary power output terminal of the power module through a third resistor R3. In this embodiment of the invention, the voltage detection terminal SENSE is pulled up to the auxiliary power output terminal 13 through the third resistor R3, so that the voltage detection terminal SENSE is kept at a high level in the default state, ensuring that the monitoring chip U1 can correctly detect the effective voltage when the server does not send a power cycle command, and maintain the stable output state of the reset output terminal RESET_N.

[0027] As an optional implementation, in one embodiment of the invention, the preset duration ranges from 1.5 seconds to 2 seconds. In this embodiment, setting the preset duration within the range of 1.5 seconds to 2 seconds ensures that after a complete power outage, all controllers relying on the main power supply have sufficient time to complete the discharge process, achieving a complete clearing of registers and avoiding residual data in registers due to an excessively short power outage time. Simultaneously, this duration range is not too long, ensuring that the server can quickly complete the power cycle and restore power, reducing interruption time.

[0028] As an optional implementation, in one embodiment of the invention, the capacitance value of the first capacitor C1 ranges from 0.1μF to 10μF. In this embodiment of the invention, by setting the capacitance value of the first capacitor C1 within the range of 0.1μF to 10μF, and utilizing the characteristic that the capacitance value of the external capacitor connected to the delay configuration terminal CT of the monitoring chip U1 is proportional to the delay time, the delay time of 1.5 seconds to 2 seconds can be flexibly adjusted to meet the different requirements of different server platforms for power-off reset time.

[0029] This invention also provides a server power supply system, which includes the aforementioned server power supply device. The power supply device includes a power module 1 and a control module 2. The power module 1 has an enable control terminal and a main power output terminal, and is used to supply power to a server 3. The control module 2 is connected to the enable control terminal and the server 3, and is configured to: in response to a power cycle command sent by the server 3, output a first control signal to the enable control terminal to turn off the power output of the main power output terminal; after a preset delay, output a second control signal to the enable control terminal to restart the power output of the main power output terminal. In this embodiment of the invention, the control module 2 responds to the power cycle command sent by the server 3 and automatically performs a power cycle operation of power-off, delayed power-on, and so on. This allows the server 3 to remotely enter the G3 state (mechanical shutdown state) and automatically restore power supply without the need for manual on-site unplugging and plugging of power cables. Since the control module 2 directly controls the main power output of the power module 1, it achieves a complete shutdown of the main power supply of the server 3. This ensures that all baseboard management controllers and complex programmable logic devices inside the server 3 that rely on the main power supply are completely powered off and their registers are cleared, meeting the requirement for complete power-off and reset. This improves efficiency and avoids the risks of misoperation and safety hazards caused by manual unplugging.

[0030] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3As shown, the control module 2 includes a monitoring chip U1 and a switching circuit. The monitoring chip U1 has a voltage detection terminal SENSE, a delay configuration terminal CT, and a reset output terminal RESET_N. The voltage detection terminal SENSE is connected to the instruction output terminal of the server 3. The delay configuration terminal CT is connected to the ground terminal through a first capacitor C1. The reset output terminal RESET_N is connected to the auxiliary power output terminal of the power module 1 through a first resistor R1. The input terminal of the switching circuit is connected to the reset output terminal RESET_N, and the output terminal of the switching circuit is connected to the enable control terminal. In this embodiment of the invention, a monitoring chip U1 is used to monitor the level status of the command output terminal of server 3 in real time. When the command output terminal outputs a power cycle command, the voltage detection terminal SENSE of the monitoring chip U1 detects the level change. After internal logic processing, a corresponding control signal is output through the reset output terminal RESET_N. Then, the switching circuit drives the enable control terminal of power module 1, thereby realizing precise control of the main power output terminal of power module 1. At the same time, the delay time can be flexibly configured through the first capacitor C1 connected to the delay configuration terminal CT, ensuring that server 3 has sufficient time to clear the register after power failure. The reset output terminal RESET_N is pulled up to the auxiliary power output terminal 13 through the first resistor R1, ensuring the level stability of the reset output terminal RESET_N in the default state. The control module 2 has a simple structure, realizes remote cyclic control of server power, and has high reliability.

[0031] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the switching circuit includes an NMOS transistor. The gate G of the NMOS transistor is connected to the reset output terminal RESET_N, the source S of the NMOS transistor is grounded, and the drain D of the NMOS transistor is connected to the enable control terminal. In this embodiment of the invention, a single NMOS transistor is used to construct the switching circuit. The gate G of the NMOS transistor is used as the input terminal to receive the signal from the reset output terminal RESET_N. When the reset output terminal RESET_N outputs a high level, the NMOS transistor is turned on, pulling the drain D low to ground, thereby outputting a low-level enable signal to the enable control terminal. When the reset output terminal RESET_N outputs a low level, the NMOS transistor is turned off, and the drain D is in a high-impedance state. With the help of an external pull-up circuit, the enable control terminal is restored to a high level, realizing the inverting drive function of the signal. Only a single NMOS transistor is needed to complete the level conversion and drive control, resulting in fewer components, a simpler circuit, faster response speed, and higher reliability.

[0032] The working principle of this device is as follows: Server 3 is connected to a power source. The auxiliary power output terminal of power module 1 outputs an auxiliary power supply voltage. The voltage value exceeds the SENSE threshold voltage of the voltage detection terminal of monitoring chip U1. After monitoring chip U1 detects the valid voltage, the first capacitor C1 connected to the delay configuration terminal CT determines the delay time. After the delay ends, the reset output terminal RESET_N outputs a high-level signal. This high-level signal is inverted by an NMOS transistor and converted into a low-level signal. After being filtered by an RC circuit, it outputs a low-level enable signal to the enable control terminal of power module 1. The low-level enable signal of power module 1 enables the main power output terminal of power module 1 to supply power to server 3. After server 3 is powered on normally, the programmable logic device CPLD, management chip BMC, and CPU processor are all powered by the main power output terminal and operate normally. When a power cycle operation is required, the programmable logic device (CPLD) or the management chip (BMC) issues a power cycle command. When the voltage value is lower than the threshold voltage of the voltage detection terminal of the monitoring chip U1, the monitoring chip U1 detects an invalid voltage. After a delay time set by the delay configuration terminal CT, the reset output terminal RESET_N outputs a low-level signal. This low-level signal is inverted by an NMOS transistor and converted into a high-level signal, which is then transmitted to the enable control terminal of the power module 1 via an RC circuit. Upon receiving an invalid enable signal, the enable control terminal shuts down the power output of the main power supply terminal of the power module 1, and the server 3 is completely powered off. After the main power output terminal is shut down, the programmable logic device (CPLD) and the management chip BMC of the server 3 lose power and become ineffective due to the loss of main power supply. When the voltage detection terminal of the monitoring chip U1 detects a valid voltage again, it repeats the delay and enable control process of the initial power-on phase, automatically restarting the power output of the main power supply terminal of the power module 1, and the server 3 is powered back on.

[0033] This invention also provides a power supply method for a server, see [link to relevant documentation]. Figure 4 As shown, the power supply method uses a server power supply device as described above, and the power supply method includes the following steps: Step S10: In response to the power cycle command, output the first control signal to the enable control terminal to turn off the power output of the main power output terminal; Step S20: After a preset delay, output a second control signal to the enable control terminal to restart the power output of the main power supply.

[0034] Specifically, by responding to power cycle commands and sequentially executing power-off, delay, and power-on operations, the server can remotely complete the entire power cycle from normal power supply to complete power-off and then power-on without manual on-site unplugging and plugging of power cables. It directly controls the on / off of the main power output terminal of the power module, realizing the complete shutdown of the server's main power supply. This allows all baseboard management controllers and complex programmable logic devices inside the server that rely on the main power supply to be completely powered off and their registers to be cleared, meeting the requirement for complete power-off and reset in firmware upgrade scenarios. It simplifies the tedious manual unplugging operation into an automated process, improving operational efficiency and avoiding the risks of misoperation and safety hazards caused by manual operation.

[0035] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0036] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A power supply device for a server, characterized in that, include: The power module (1) has an enable control terminal and a main power output terminal, and the power module (1) is used to supply power to the server (3); Control module (2), which is connected to the enable control terminal and the server (3), is configured to: In response to the power cycling command sent by the server (3), a first control signal is output to the enable control terminal to turn off the power output of the main power output terminal; After a preset delay, a second control signal is output to the enable control terminal to restart the power output of the main power supply output terminal.

2. The power supply device for a server according to claim 1, characterized in that, The control module (2) includes: The monitoring chip has a voltage detection terminal, a delay configuration terminal and a reset output terminal. The voltage detection terminal is connected to the instruction output terminal of the server (3). The delay configuration terminal is connected to the ground terminal through a first capacitor. The reset output terminal is connected to the auxiliary power output terminal of the power module (1) through a first resistor. A switching circuit, wherein the input terminal of the switching circuit is connected to the reset output terminal, and the output terminal of the switching circuit is connected to the enable control terminal.

3. The power supply device for a server according to claim 2, characterized in that, The switching circuit includes: An NMOS transistor, the gate of which is connected to the reset output terminal, the source of which is grounded, and the drain of which is connected to the enable control terminal.

4. The power supply device for a server according to claim 3, characterized in that, Also includes: An RC circuit is provided between the drain of the NMOS transistor and the enable control terminal.

5. A server power supply device according to claim 4, characterized in that, The RC circuit includes: The second resistor has one end connected to the drain of the NMOS transistor and the other end grounded. The second capacitor is connected in parallel with the second resistor.

6. A server power supply device according to claim 2, characterized in that: The voltage detection terminal is connected to the auxiliary power output terminal of the power module via a third resistor.

7. A server power supply device according to claim 1, characterized in that: The preset duration ranges from 1.5 seconds to 2 seconds.

8. A power supply device for a server according to claim 2, characterized in that: The capacitance value of the first capacitor ranges from 0.1μF to 10μF.

9. A power supply system for a server, characterized in that, Includes a power supply device for a server as described in claim 1.

10. A method for supplying power to a server, using the server power supply device according to claim 1, characterized in that, Includes the following steps: In response to the power cycle command, the first control signal is output to the enable control terminal to shut down the power output of the main power output terminal; After a preset delay, a second control signal is output to the enable control terminal to restart the power output of the main power supply.

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