Power supply redundancy combining circuit for replacing server power supply cage and server

Abstract

The invention relates to a power supply redundancy combining circuit replacing a server power supply cage and a server, the power supply redundancy combining circuit comprises a PCB, the PCB is provided with a first CRPS power supply connector female seat, a second CRPS power supply connector female seat, a standard pin and an ATX power supply connector male seat; the standard contact pin and the ATX power supply connector male seat are electrically connected with the first CRPS power supply connector female seat and the second CRPS power supply connector female seat; the PCB is provided with a first pull-up resistor and a first pull-down resistor which are electrically connected with the first CRPS power connector female seat, and a second pull-up resistor and a second pull-down resistor which are electrically connected with the second CRPS power connector female seat; redundant output of 2-4 power supplies can be realized; not only can the layout wiring be flexibly designed according to an actual application scene, but also a standard redundant power supply cage is saved, so that miniaturization and portability of a product are facilitated, and the cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of server power redundancy design, and more particularly to a power redundancy combining circuit and a server for replacing a server power cage. Background Art

[0002] In the server field, because server products operate 24 hours a day, a redundant power supply design is generally required. A common dual-redundant power supply design generally consists of two standard CRPS power modules plus a 1U or 2U power cage. The CRPS power modules are responsible for power output, and the power cage combines the output of the two power modules.

[0003] Currently, the only commonly used redundant power cages on the market are 1U and 2U models, both of which are relatively fixed in size. Furthermore, the cages must be used with a stack of ATX power adapter cables, which take up a significant amount of internal space. In today's dynamic and ever-changing server market, especially with the rise of edge servers, these issues with power cages have severely impacted the current design requirements for miniaturization, portability, and low cost of edge servers. There is an urgent need for a redundant power combining circuit that can replace server power cages. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a power redundancy combining circuit that replaces the server power cage in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A power redundancy combining circuit is constructed to replace a server power cage, comprising a PCB board, on which a first CRPS power connector socket, a second CRPS power connector socket, a standard pin, and an ATX power connector socket are provided; the standard pin and the ATX power connector socket are both electrically connected to the first CRPS power connector socket and the second CRPS power connector socket; the PCB board is provided with a first pull-up resistor and a first pull-down resistor electrically connected to the first CRPS power connector socket, and a second pull-up resistor and a second pull-down resistor electrically connected to the second CRPS power connector socket; the first pull-up resistor and the first pull-down resistor are used to set power parameters for the CRPS power supply connected to the first CRPS power connector socket; and the second pull-up resistor and the second pull-down resistor are used to set power parameters for the CRPS power supply connected to the second CRPS power connector socket.

[0007] The power redundancy combining circuit for replacing a server power cage according to the present invention, wherein the power parameters include a GND signal, a P12V signal, an SDA signal, an SCL signal, a PS_ON# signal, an SMBAlert# signal, an RS- signal, an RS+ signal, a PSOK signal, an A0 signal, an A1 signal, a P12V_STBY signal, a Cold Redundancy Bus signal, a +12VLS signal, a PS_PRESENT# signal, and a VIN_GOOD signal.

[0008] In the power redundancy combining circuit for replacing a server power cage according to the present invention, there are 1 to 3 second CRPS power connector sockets, and when there are multiple second CRPS power connector sockets, each second CRPS power connector socket is correspondingly configured with the second pull-up resistor and the second pull-down resistor;

[0009] The PMBUS addresses of the CRPS power supply corresponding to the first CRPS power connector socket and the CRPS power supplies corresponding to one or more second CRPS power connector sockets are different from each other.

[0010] A server is provided with a power redundancy combining circuit as described above that replaces the server power cage.

[0011] The beneficial effect of the present invention lies in: connecting the same signals of two CRPS power supplies together through a PCB, and setting the parameters of the two CRPS power supplies, such as PMBUS address, voltage compensation, and other spurious (MISC) signals, on the PCB through pull-up and pull-down resistors. This allows the two power supplies to achieve redundant output even without a standard redundant power cage. That is, even if one power supply fails, the other can still output normally, ensuring that as long as the public power grid is powered normally, the load end (server) can operate uninterruptedly 24 hours a day.

[0012] This patent successfully achieves redundant outputs of 2-4 power supplies. It allows for flexible design of redundant power supply layouts based on the actual application scenarios of different products while also saving a standard redundant power supply cage. This prevents the product's structural design from being limited by the dimensions of the power supply cage, facilitates miniaturization and portability, and significantly reduces costs. Furthermore, it should be noted that this patent has been verified in practice on our company's existing product projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts.

[0014] Figure 1 This is a circuit schematic diagram of a power redundancy combining circuit that replaces a server power cage according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0015] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0016] The power redundancy combining circuit of the preferred embodiment of the present invention that replaces the server power cage is as follows: Figure 1 As shown, it includes a PCB board, on which a first CRPS power connector female socket 1, a second CRPS power connector female socket 2, a standard pin 3 and an ATX power connector male socket 4 are provided; the standard pin 3 and the ATX power connector male socket 4 are both electrically connected to the first CRPS power connector female socket 1 and the second CRPS power connector female socket 2; the PCB board is provided with a first pull-up resistor and a first pull-down resistor electrically connected to the first CRPS power connector female socket, and a second pull-up resistor and a second pull-down resistor electrically connected to the second CRPS power connector female socket; the first pull-up resistor and the first pull-down resistor are used to set the power parameters of the CRPS power supply connected to the first CRPS power connector female socket 1; the second pull-up resistor and the second pull-down resistor are used to set the power parameters of the CRPS power supply connected to the second CRPS power connector female socket 2;

[0017] Connect the same signals from the two CRPS power supplies together via a PCB, and set the parameters of both CRPS power supplies, such as the PMBUS address, voltage compensation, and other spurious signals, on the PCB using pull-up and pull-down resistors. This allows redundant output from both power supplies even without a standard redundant power cage. This means that even if one power supply fails, the other will still function normally, ensuring 24 / 7 uninterrupted operation of the load (server) as long as the public grid is functioning properly.

[0018] like Figure 1As shown, preferably, the first pull-up resistor includes R1 and R2, the first pull-down resistor includes R3 and R4, the second pull-up resistor includes R5 and R6, and the second pull-down resistor includes R7 and R8; it can be understood that in addition to this method of setting the pull-up and pull-down resistors, other existing methods can also be used, and the solutions obtained by transformation based on conventional means also fall within the scope of protection of this application;

[0019] The power supply parameters are detailed in the table below:

[0020]

[0021] According to the CRPS basic specification and Intel's CRPS design guidelines, the PMBUS address width is generally 7 bits (excluding the least significant read / write bit). The upper 4 bits are generally fixed by the power supply manufacturer, and the third bit is set to 0 by default (1 is a reserved value). Therefore, the application only needs to flexibly configure the 2-bit PMBUS address, namely Address Bit [1:0], to achieve redundant output of up to 4 power supplies. For example:

[0022] To achieve redundant output of two power supplies, configure the Address Bit[1:0] of the two power supplies to 00 and 01 respectively;

[0023] To achieve three power supply redundant outputs, configure the Address Bits [1:0] of the three power supplies to 00, 01, and 10 respectively.

[0024] To achieve redundant output of four power supplies, the Address Bits [1:0] of the four power supplies are configured as 00, 01, 10, and 11 respectively.

[0025] The PMBUS address of each power supply must not be repeated.

[0026] In circuit design, different PMBUS addresses can be configured by setting appropriate pull-up and pull-down resistors according to actual needs. Figure 1 As shown, the header and ATX connector can be made of materials of different sizes according to different product design requirements. For example, the header can be made of either standard DuPont wire pins or flexible cables such as FPC.

[0027] The 3.3V and 5V voltages required on the motherboard can be adjusted by selecting different DC / DC power supply chips according to different load powers, which is more conducive to reasonable utilization and cost saving.

[0028] The pull-up and pull-down resistors involved in this patent are all conventional resistors. The electrical parameter selection of each device compatible with this patent is as follows:

[0029] Table 2 Electrical parameters of each device selection reference:

[0030]

[0031] Note: Except for the CRPS connector which is a standard part, all other components mentioned above can be flexibly selected in terms of size and cost according to actual product requirements.

[0032] This patent successfully achieves redundant outputs of 2-4 power supplies. It allows for flexible design of redundant power supply layouts based on the actual application scenarios of different products while also saving a standard redundant power supply cage. This prevents the product's structural design from being limited by the dimensions of the power supply cage, facilitates miniaturization and portability, and significantly reduces costs. Furthermore, it should be noted that this patent has been verified in practice on our company's existing product projects.

[0033] A server is provided with a power redundancy combining circuit as described above that replaces the server power cage.

[0034] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A power redundancy combining circuit that replaces a server power cage, characterized in that: It includes a PCB board, on which a first CRPS power connector female socket, a second CRPS power connector female socket, a standard pin and an ATX power connector male socket are provided; the standard pin and the ATX power connector male socket are electrically connected to the first CRPS power connector female socket and the second CRPS power connector female socket; the PCB board is provided with a first pull-up resistor and a first pull-down resistor electrically connected to the first CRPS power connector female socket, and a second pull-up resistor and a second pull-down resistor electrically connected to the second CRPS power connector female socket; the first pull-up resistor and the first pull-down resistor are used to set power parameters for the CRPS power supply connected to the first CRPS power connector female socket; the second pull-up resistor and the second pull-down resistor are used to set power parameters for the CRPS power supply connected to the second CRPS power connector female socket.

2. The power redundancy combining circuit for replacing a server power cage according to claim 1, characterized in that: The power supply parameters include GND signal, P12V signal, SDA signal, SCL signal, PS_ON# signal, SMBAlert# signal, RS- signal, RS+ signal, PSOK signal, A0 signal, A1 signal, P12V_STBY signal, Cold Redundancy Bus signal, +12VLS signal, PS_PRESENT# signal and VIN_GOOD signal.

3. The power redundancy combining circuit for replacing a server power cage according to claim 1, characterized in that: There are 1-3 second CRPS power connector sockets, and when there are multiple second CRPS power connector sockets, each second CRPS power connector socket is correspondingly configured with the second pull-up resistor and the second pull-down resistor; The PMBUS addresses of the CRPS power supply corresponding to the first CRPS power connector socket and the CRPS power supplies corresponding to one or more second CRPS power connector sockets are different from each other.

4. A server, characterized in that: The server is provided with a power redundancy combining circuit for replacing the server power cage as described in any one of claims 1-3.

Images