Server system and power management method thereof
By introducing the master-slave power supply into the server system and adjusting its output proportion, the problem of single operation mode of the power supply device in the prior art is solved, and the selection of multiple operating modes is realized, which improves the flexibility and application range of the power supply device.
Patent Information
- Application Number
- CN202410769975.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-17
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-20
AI Technical Summary
The two power supply devices connected in parallel in the prior art must bear 50% of the total load power respectively, and the output power must be the same, lacking multiple operating modes, limiting the application range of the power supply device.
The remaining load is supplemented by the slave power supply by introducing the main power supply and slave power supply into the server system and adjusting its output ratio in backup mode so that the output power of the main power supply is not greater than the set value.
Various mode selections of power supply methods are realized, and users can freely plan the output ratio of the master-slave power supply according to different situations, improving the flexibility and application range of the power supply device.
Smart Images
Figure CN120020677A_ABST
Abstract
Claims
1. A power management method, applicable to a power supply device, characterized in that: include: In the backup mode, the first power supply as the main power supply receives a power setting value, and limits the first output power value of the main power supply to not be greater than the power setting value; and In the backup mode, the second power supply as a slave power supply is activated and the output power of the slave power supply is controlled to be a second output power value, wherein the second output power value is set by the difference between the total load of the power supply device and the first output power value.
2. The power management method according to claim 1, characterized in that: Also includes: When the power setting value is greater than the total load, the slave power supply is turned off.
3. The power management method according to claim 1, characterized in that: Also includes: The first output power value of the main power supply is adjusted by adjusting the output voltage of the main power supply.
4. The power management method according to claim 1, characterized in that: Also includes: When the main power supply fails, the second output power value of the slave power supply is increased to be equal to the total load of the power supply device.
5. The power management method according to claim 1, characterized in that: Also includes: In a normal mode, the first output power value of the master power supply and the second output power value of the slave power supply are both set to half of the total load of the power supply device.
6. The power management method according to claim 1, characterized in that: Also includes: The first power supply is switched to be the slave power supply, and the second power supply is switched to be the master power supply.
7. A server system, characterized in that: include: Load device; as well as A power supply device, coupled to the load device, comprises: A first power supply configured as a main power supply; and A second power supply is configured as a slave power supply and is coupled in parallel with the first power supply. Wherein, in the backup mode, the load device provides a power setting value to the main power supply, the first output power value provided by the main power supply is not greater than the power setting value, and the load device sets the second output power value provided by the slave power supply via the difference between the total load of the power supply device and the first output power value.
8. The server system according to claim 7, characterized in that: When the power setting value is greater than the total load, the slave power supply is turned off.
9. The server system according to claim 7, characterized in that: The main power supply adjusts the generated internal output voltage to adjust the first output power value provided by the main power supply.
10. The server system according to claim 7, characterized in that: When the main power supply fails, the main power supply sends a fault signal to the load device, and the load device increases the second output power value of the slave power supply to be equal to the total load of the power supply device through the fault signal.
11. The server system according to claim 7, characterized in that: In a normal mode, the first output power value of the master power supply and the second output power value of the slave power supply are both half of the total load of the power supply device.
12. The server system according to claim 7, characterized in that: The load device sends a command to switch the first power supply to the slave power supply and to switch the second power supply to the master power supply.
13. The server system according to claim 7, characterized in that: Each of the first power supply and the second power supply comprises: a controller, generating a power setting signal through the power setting value, an internal current signal of the first power supply or the second power supply, an external current signal of the power supply device, and an external voltage signal; A power generator receives an input voltage and generates an internal output voltage via a pulse width modulation signal; and The pulse width modulation signal generator is coupled to the power generator and the controller, and adjusts the pulse width modulation signal via the power setting signal.
14. The server system according to claim 13, characterized in that: Each of the first power supply and the second power supply further includes a current detector for detecting the internal current signal of the first power supply or the second power supply.
15. The server system according to claim 13, characterized in that: The controller comprises: a digital signal processing circuit, generating control information via the power setting value, the internal current signal, the external current signal, and the external voltage signal; and The power setting circuit is coupled to the digital signal processing circuit and generates the power setting signal according to the control information.
16. The server system according to claim 13, characterized in that: The pulse width modulation signal generator comprises: a feedback circuit, receiving the external voltage signal to generate a feedback signal; and The periodic signal generating circuit is coupled to the power generator, the controller and the feedback circuit, and generates the pulse width modulation signal via the feedback signal and the power setting signal.
17. The server system according to claim 7, characterized in that: The load device comprises: The baseboard management controller is used to provide the power setting value and the second output power value.
18. A power supply device, characterized in that: include: A first power supply is configured as a main power supply; as well as A second power supply is configured as a slave power supply and is coupled in parallel with the first power supply. In the backup mode, the main power supply receives a power setting value, the first output power value of the main power supply is limited to not greater than the power setting value, and the output power of the slave power supply is a second output power value, wherein the second output power value is set by the difference between the total load of the power supply device and the first output power value.
19. The power supply device according to claim 18, characterized in that: Each of the first power supply and the second power supply comprises: a controller, generating a power setting signal through the power setting value, an internal current signal of the first power supply or the second power supply, an external current signal of the power supply device, and an external voltage signal; A power generator receives an input voltage and generates an internal output voltage via a pulse width modulation signal; and The pulse width modulation signal generator is coupled to the power generator and the controller, and adjusts the pulse width modulation signal via the power setting signal.
20. The power supply device according to claim 18, characterized in that: Each of the first power supply and the second power supply further includes a current detector for detecting the internal current signal of the first power supply or the second power supply.
21. The power supply device according to claim 18, characterized in that: The controller comprises: a digital signal processing circuit, generating control information via the power setting value, the internal current signal, the external current signal, and the external voltage signal; and The power setting circuit is coupled to the digital signal processing circuit and generates the power setting signal according to the control information.
22. The power supply device according to claim 18, characterized in that: The pulse width modulation signal generator comprises: a feedback circuit, receiving the external voltage signal to generate a feedback signal; and The periodic signal generating circuit is coupled to the power generator, the controller and the feedback circuit, and generates the pulse width modulation signal via the feedback signal and the power setting signal.
23. The power supply device according to claim 22, characterized in that: The feedback circuit comprises: a current amplifier, receiving the internal current signal and generating an amplified internal current signal; and A comparator compares the amplified internal current signal with the power setting value to generate the feedback signal.
24. The power supply device according to claim 18, characterized in that: When the power setting value is greater than the total load, the slave power supply is turned off; When the main power supply fails, the slave power supply increases the second output power value generated to be equal to the total load of the power supply device. In a normal mode, the first output power value of the master power supply and the second output power value of the slave power supply are both half of the total load of the power supply device.