Power supply module based on VITA74 standard

Abstract

The utility model discloses a power supply module based on a VITA74 standard, which comprises a power supply module body, the power supply module body is integrated on a printed board, the power supply module body comprises a VNX connector, a battery, an over-current and over-voltage protection chip, an MCU and a DC-DC power supply chip, the battery, the over-current and over-voltage protection chip and the MCU are respectively connected with the VNX connector, the DC-DC power supply chip is connected with the MCU, and the DC-DC power supply chip is connected with the over-current and over-voltage protection chip. All the devices are domestic devices. According to the utility model, the input 16V-28V power supply is converted into 12V, 5V, 3.3 V and 3.3 V standby power supplies for output, the 3.6 V VBA power supply output is provided through the battery, the size and signal definition of the power supply accord with the VITA74 standard, the power supply can be used as a general standard goods shelf product, and the research and development process of the general goods shelf product accordant with the standard framework can be greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to power module technical field, concretely relates to a power module based on VITA74 standard. BACKGROUND

[0002] In the development of embedded system, the size of the chassis power module is generally large, and the size and weight of the chassis are also increased, which is difficult to meet the use requirements of the environment with strict space and weight restrictions; human resources are consumed in each link such as principle design, PCB layout and wiring, and subsequent production.

[0003] Therefore, it is necessary to design a power module based on VITA74 standard to overcome the above problems. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model provides a power module based on VITA74 standard, which converts the input 16V~28V power supply into 12V, 5V, 3.3V, 3.3V standby power output, provides 3.6V VBAT power output through the battery, and its size and signal definition meet the VITA74 standard, which can be used as a general standard shelf product, and the standard architecture can be used as a general shelf product, which can greatly reduce the research and development process.

[0005] The technical scheme provided by the utility model is as follows:

[0006] A power module based on VITA74 standard, comprising a power module body, the power module body is integrated on a printed board, the power module body comprises a VNX connector, a battery, an overcurrent and overvoltage protection chip and an MCU connected with the VNX connector respectively, a DC-DC power supply chip connected with the MCU, the DC-DC power supply chip is connected with the overcurrent and overvoltage protection chip, all the above devices are domestic devices.

[0007] Further, it further comprises an amplifier connected with the MCU, which is used for collecting power current in the printed board.

[0008] Further, it further comprises a temperature sensor for reading the environment temperature of the DC-DC power supply chip, and a triode for controlling the output timing of the DC-DC power supply chip.

[0009] Further, the amplifier adopts an LT199G1XC6 chip, and the temperature sensor adopts a GX18B20U chip.

[0010] Further, the VNX connector further comprises a 1-way UART interface, a SWD debugging port, a 4-way fan control GPIO interface, a reset signal and a BOOT control signal, and an MCU reporting information IIC interface.

[0011] Further, the VNX connector is set as a 400pin VNX connector conforming to the VITA74 standard, and the model adopts GVNX-TW-MMMMM-1ASF.

[0012] Further, the battery is set as a 3.6V lithium manganese button battery, and the model adopts CR2032, which outputs a 3.6V VBAT power supply.

[0013] Further, the MCU adopts a GD32F303VGT6 chip, which constitutes a health management unit of the whole power module, is used for acquiring temperature, voltage and current health information of the printed board, and supports health information reporting and chassis fan state control.

[0014] Further, the DC-DC power supply chip is set as three pieces, wherein one piece outputs a 12V / 16A power supply, one piece outputs a 5V / 8A and 3.3V / 8A power supply, and one piece outputs a 3.3V / 16A standby power supply.

[0015] The power module based on the VITA74 standard integrates the DC-DC power supply chip, the MCU and the VNX connector on one printed board, and is designed in structure and shape according to the VITA74 standard specification of 19mm thickness, and the connector signal definition is executed according to the VITA74 standard; the power module provides two 3.3V, one 5V, one 12V and one 3.6V output power supplies outside through the DC-DC power supply chip and the battery; meanwhile, the VNX connector leads out one UART interface, an SWD debugging port, four fan control GPIOs, one reset signal and a BOOT control signal, and an MCU reporting information IIC interface outside; the power module can be used as a standard shelf product, and is convenient for adapting to customer chassis systems.

[0016] Compared with the prior art, the power module has the following beneficial effects:

[0017] 1) The input 16V~28V power supply is converted into 12V, 5V, 3.3V and 3.3V standby power supply outputs, the 3.6V VBAT power supply output is provided through the battery, and the size and signal definition conform to the VITA74 standard, so that the power module can be used as a general standard shelf product, and the standard architecture can be used as a general shelf product, so that the research and development process can be greatly reduced;

[0018] 2) The power module meets the miniaturization product of the VITA74 standard, and compared with the VITA46 or ASAAC architecture product module size, the length, the width and the height are all reduced, so that the power module can provide a smaller size and standard module for customers, improve the competitiveness of similar products, and promote the product diversity under different size requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a connection diagram of the utility model. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] It should be noted that, in the description of the utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. EMBODIMENT

[0022] As shown in Figure 1 A power module based on VITA74 standard, comprising a power module body, the power module body is integrated on a printed board, the power module body comprises:

[0023] 1 400pin VNX connector GVNX-TW-MMMMM-1ASF conforming to VITA74 standard;

[0024] 1 3.6V lithium manganese button cell with model CR2032, which is connected with the VNX connector, for providing one-way VBAT power output;

[0025] 1 overvoltage and overcurrent protection chip with model XC388 chip, which is connected with the VNX connector, for overvoltage and overcurrent protection of 28V power supply;

[0026] 1 MCU with model GD32F303VGT6 chip, which is connected with the VNX connector, for real-time monitoring of the health information of the entire printed board, power-on timing control, case fan control, and simultaneously leading out one-way IIC external interface to support the system master node to obtain the health information of the printed board;

[0027] 3 DC-DC power supply chips with model EZ8828 chip, which are connected with the MCU and the overvoltage and overcurrent protection chip respectively, for providing multiple power outputs;

[0028] 5 amplifiers with model LT199G1XC6 chip, which are all connected with the MCU, for printed board internal power current collection;

[0029] 1 temperature sensor with model GX18B20U chip, for environment temperature reading of the DC-DC power supply chip;

[0030] 4 triodes for DC-DC power chip output timing control;

[0031] The VNX connector meeting the VITA74 standard comprises a 1-way UART interface, a SWD debugging port, 4-way fan control GPIO, a 1-way reset signal and a BOOT control signal, and an MCU reporting information IIC interface;The output mode of the DC-DC power chip is configurable, wherein one piece outputs 12V / 16A power, one piece outputs 5V / 8A and 3.3V / 8A power, and one piece outputs 3.3V / 16A standby power;The triode is used for reserving control of turning off power output, and only controls 12V, 5V and 3.3V, and does not include VSBY.

[0032] The utility model discloses a power module, which comprises a VNX connector, a DC-DC power chip, a MCU, a battery and an overcurrent and overvoltage protection chip. The power module has an input power range of 16V-28V, and provides a 12V power supply with a maximum load capacity of 16A, a 5V power supply with a maximum load capacity of 8A, a 3.3V power supply with a maximum load capacity of 8A, a 3.3V standby power supply with a maximum load capacity of 16A and a 3.6V VBAT power supply to the VNX connector. The utility model integrates the DC-DC power chip, the MCU and the VNX connector into a 19mm-thick module meeting the VITA74 standard, and provides multiple output power supplies according to the signal definition recommended by the standard. The utility model constructs a power module meeting the VITA74 standard, and can also provide power supply for other modules in a VNX-structured case.

[0033] The above-described embodiments are merely preferred embodiments of the utility model, and do not limit the scope of the utility model. Without departing from the principles and essence of the utility model, various modifications and improvements to the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope of the utility model.

Claims

1. A power module based on the VITA 74 standard, comprising a power module body which is integrated on a printed board, characterized in that The power module body comprises a VNX connector, a battery, an overcurrent and overvoltage protection chip and an MCU connected with the VNX connector respectively, a DC-DC power supply chip connected with the MCU, and the DC-DC power supply chip is connected with the overcurrent and overvoltage protection chip, and all the above devices are domestic devices.

2. The power module based on the VITA 74 standard according to claim 1, characterized in that An amplifier connected with the MCU is further included for collecting power supply current in the printed board.

3. The power module according to claim 2, characterized in that A temperature sensor for reading the environmental temperature of the DC-DC power supply chip and a triode for controlling the output timing of the DC-DC power supply chip are further included.

4. The power module according to claim 3, characterized in that The amplifier adopts an LT199G1XC6 chip, and the temperature sensor adopts a GX18B20U chip.

5. The power module based on VITA 74 standard according to claim 1, characterized in that, The VNX connector further comprises a 1-way UART interface, a SWD debugging port, a 4-way fan control GPIO interface, a reset signal and a BOOT control signal, and an MCU reporting information IIC interface.

6. The power module based on the VITA 74 standard according to claim 1 or 5, characterized in that The VNX connector is set as a 400pin VNX connector conforming to the VITA74 standard, and the model thereof adopts GVNX-TW-MMMMM-1ASF.

7. The power module according to claim 1, wherein The battery is set as a 3.6V lithium manganese button cell, and the model thereof adopts CR2032, and the output thereof is a 3.6V VBTA power supply.

8. The power module based on VITA 74 standard according to claim 1, characterized in that, The MCU adopts a GD32F303VGT6 chip, which constitutes a health management unit of the entire power module, is used for acquiring temperature, voltage and current health information of the printed board, and supports health information reporting and case fan state control.

9. The power module according to claim 1, wherein The DC-DC power supply chip is set as three pieces, one of which outputs a 12V / 16A power supply, one of which outputs a 5V / 8A and 3.3V / 8A power supply, and one of which outputs a 3.3V / 16A standby power supply.

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