CN102916817B - Power supply control circuit and modular equipment of data center manageability interface (DCMI) - Google Patents
Power supply control circuit and modular equipment of data center manageability interface (DCMI) Download PDFInfo
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- CN102916817B CN102916817B CN201210337805.6A CN201210337805A CN102916817B CN 102916817 B CN102916817 B CN 102916817B CN 201210337805 A CN201210337805 A CN 201210337805A CN 102916817 B CN102916817 B CN 102916817B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
本发明提供一种DCMI的供电控制电路及模块化设备，所述供电控制电路连接于电源模块与管理模块之间；所述电源模块输出备用电压和系统电压；所述管理模块包括主用管理模块和备用管理模块；所述供电控制电路包括：用于控制主用管理模块供电的主用控制单元，以及用于控制备用管理模块供电的备用控制单元；所述主用控制单元用于控制所述备用电压在第一时间段为主用管理模块上的DCMI供电；所述备用控制单元用于控制所述备用电压在第二时间段为备用管理模块上的DCMI供电；所述第一时间段与所述第二时间段彼此不重合。
The present invention provides a DCMI power supply control circuit and modular equipment, the power supply control circuit is connected between a power supply module and a management module; the power supply module outputs a backup voltage and a system voltage; the management module includes a main management module and a backup management module; the power supply control circuit includes: a main control unit for controlling the power supply of the main management module, and a backup control unit for controlling the power supply of the backup management module; the main control unit is used for controlling the The backup voltage supplies power to the DCMI on the active management module in the first time period; the backup control unit is used to control the backup voltage to supply power to the DCMI on the backup management module in the second time period; the first time period and The second time periods do not coincide with each other.
Description
Technical Field
The present invention relates to circuit technologies, and in particular, to a power supply control circuit and a modular device for a Data Center Management Interface (DCMI).
Background
The modular equipment refers to a system formed by functional modules according to a certain mode. Taking a modular switch as an example, the schematic structural diagram of the modular switch provided in the prior art shown in fig. 1 includes a power module (shown as 11 and 12), a management module (also called a management board, shown as 5 and 6), a service module (also called a line card, shown as 1 to 4, 7 to 10), and the like. These different functional modules are interconnected through a backplane in the chassis, which together make up a modular switch. The modules are relatively independent and closely connected with each other: the power module is mainly responsible for supplying power to the whole modularized switch, the management module is mainly responsible for the management work of the whole modularized switch, if the functional modules exist, the working states of the functional modules are monitored, whether abnormity occurs or not is checked, and the service module mainly provides various interfaces and bears various specific services. There are generally two backplanes, a power backplane, and a system backplane, in a modular switch. The power module is generally plugged into the power backplane, the management module and the service module are generally plugged into the system backplane, and the power backplane and the system backplane can be connected with each other through cables. The power module generally supports two kinds of voltage output, one is a standby voltage (standby) of 3.3V/5V, and the other is a system voltage of 12V, and the output of 12V can be supported through a control pin (PowerEN) of the power module, when the control pin is at a low level, the 12V can be normally output, and when the control pin is at a high level, the 12V is not output. The 3.3V/5V standby voltage is not controlled by the control pin, and the 3.3V/5V standby power supply can output as long as 220V Alternating Current (AC) input is provided for the power supply module. In general, the output current of the 3.3V/5V standby power supply of the power module is relatively small, so that a device with large power consumption cannot be supplied.
The DCMI specification is a unified data center management interface specification that is jointly developed by intel, microsoft and some other vendors. One important function of DCMI is to support remote power-up and power-down control of the device. This requires that the DCMI be powered with the standby voltage of the power module so that the user can turn the power module back on by remotely controlling the DCMI after the 12V system voltage is turned off.
A simplified schematic structure diagram of a dual-engine modular switch provided in the prior art can be shown in fig. 2, where two engines (i.e., management modules) are included in one modular switch, and each engine is provided with a DCMI, and each DCMI needs a standby voltage of a power supply module to supply power. This results in a significant increase in the power of the standby voltage. How to reduce the power of the standby voltage is a problem which is continuously solved at present.
Disclosure of Invention
The invention provides a DCMI power supply control circuit capable of effectively reducing standby voltage power of a power module in modular equipment and the modular equipment.
The first aspect of the present invention provides a power supply control circuit of DCMI, wherein the power supply control circuit is connected between a power module and a management module; the power supply module outputs standby voltage and system voltage; the management module comprises a main management module and a standby management module; the power supply control circuit includes: the standby management module is used for controlling the power supply of the standby management module;
the main control unit is used for controlling the standby voltage to supply power to the DCMI on the main management module in a first time period; the standby control unit is used for controlling the standby voltage to supply power to the DCMI on the standby management module in a second time period; the first time period and the second time period do not coincide with each other.
Yet another aspect of the present invention is to provide a modular device including a power module and a management module connected to each other through a backplane, the power module outputting a standby voltage and a system voltage; the management module comprises a main management module and a standby management module; it also comprises a power supply control circuit of the data centre management interface DCMI as described above.
According to the scheme provided by the invention, the standby voltage only supplies power to the DCMI of one management module at any time, so that the energy consumption can be effectively saved in the standby state; second, at least one DCMI in the modular switch is powered, and a user can remotely operate through the DCMI, as long as a backup voltage is present.
Drawings
Fig. 1 is a schematic structural diagram of a modular switch provided in the prior art;
FIG. 2 is a simplified block diagram of a dual engine modular switch as provided in the prior art;
fig. 3 is a schematic structural diagram of a power supply control circuit of a DCMI according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a power supply control circuit of a DCMI according to a second embodiment of the present invention;
FIG. 5 is a schematic circuit diagram of an LTC4211 according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a power supply control circuit of a DCMI according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a power supply control circuit of a DCMI according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a power supply control circuit of a DCMI according to a fifth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a power supply control circuit of a DCMI according to a sixth embodiment of the present invention;
fig. 10 is a schematic structural diagram of a power supply control circuit of a DCMI according to a seventh embodiment of the present invention;
fig. 11 is a schematic structural diagram of a dual-engine modular switch according to an eighth embodiment of the present invention.
Detailed Description
Fig. 3 is a schematic structural diagram of a power supply control circuit of a DCMI according to an embodiment of the present invention, as shown in fig. 3, the power supply control circuit of the DCMI is connected between a power supply module and a management module, where the power supply module outputs a standby voltage and a system voltage, and the management module includes a main management module and a standby management module. The power supply control circuit of the DCMI comprises: the system comprises a main control unit for controlling the power supply of the main management module and a standby control unit for controlling the power supply of the standby management module. The standby management module is used for controlling the standby voltage to supply power to the DCMI on the standby management module in a second time period; the first time period and the second time period are not overlapped, so that the standby voltage at any moment is effectively ensured to supply power for only one DCMI in the main standby management module, and the power consumption is effectively saved.
The embodiment of the invention takes a dual-engine modular switch as an example for explanation. The modular switch with the double engines can realize redundant backup among the engines, and the modular switch cannot be abnormal when any engine is plugged in or pulled out, and the modular switch cannot be abnormal when any engine is damaged. Meanwhile, the power supply control circuit of the DCMI provided by the embodiment of the invention can realize that the standby voltage only supplies power to the DCMI module of one engine in the double engines at any time, can achieve the effect of saving power consumption in standby and effectively reduces the required power of the standby voltage.
In the embodiment of the present invention, the power module supports two voltage outputs, one is a backup voltage of 3.3V (of course, other values such as 5V) and the other is a system voltage of 12V (of course, other values are also possible). The output of system voltage can be controlled through a control pin PowerEN, and under the general condition, the system voltage can be normally output when the PowerEN is at a low level; when PowerEN is high voltage, the system voltage is not output. The output of the standby voltage is not controlled by the control pin PowerEN, and the standby voltage is output as long as 220V alternating current input exists. The standby voltage only powers the DCMI on the management module (i.e., engine), and the system voltage powers other devices of the engine, which may be other circuits, line cards, fan disks, etc. of the management module. The back plate is used for connecting all modules in the modular switch, such as power modules, engines, line cards and other board cards. The dual engines use the slot 1 engine and the slot 2 engine to distinguish from each other. Wherein slot 1 engine represents an engine inserted into the 1 st engine slot of the modular switch and slot 2 engine represents a cause of insertion into the 2 nd engine slot of the modular switch. Note that the slot 1 engine and the slot 2 engine are identical in hardware circuit design, and only the insertion positions are different. Each engine can be divided into DCMI and other circuits. The circuit of the DCMI part provided in the embodiment of the present invention may include a Complex Programmable Logic Device (CPLD). The CPLD is a digital integrated circuit that constructs logic functions according to user needs, and the logic functions in the embodiments of the present invention are described in detail later herein.
It should be noted here that the power module may be connected to the modular switch through a power backplane, and the slot 1 engine and the slot 2 engine may be connected to the modular switch through a system backplane.
In an implementation manner, as shown in fig. 4, which is a schematic structural diagram of a power supply control circuit of a DCMI according to a second embodiment of the present invention, the main control unit may include a first power-on control chip; the first power-on control chip comprises an input end, an output end and an enabling end. The input end of the first power-on control chip is connected with the output end of the standby voltage, the output end of the first power-on control chip is connected with the DCMI on the main management module, and the enabling end controls the input end and the output end to be conducted in a first time period according to a control signal of the programmable logic device. And/or, the standby control unit may include a second power-on control chip; the second power-on control chip comprises an input end, an output end and an enabling end. The input end of the second power-on control chip is connected with the output end of the standby voltage, the output end of the second power-on control chip is connected with the DCMI on the standby management module, and the enabling end controls the input end and the output end to be conducted in a second time period according to a control signal of the programmable logic device.
In the embodiment of the present invention, the first power-on control chip can adopt, but is not limited to, the LTC41 circuit schematic diagram provided in the second embodiment of the present invention as shown in fig. 5. In the common power-ON enable control and slow power-ON control chip LTC41, when the ON pin is at a high level, it is in a conducting state, and the standby voltage can reach the DCMI of the main management module; when the ON pin is at a low level, the ON pin is in an off state, and the standby voltage cannot reach the DCMI of the active management module. With reference to the specific circuit shown in fig. 5, as will be known by those skilled in the art, the ON pin is the pin No. 2 in fig. 5, and is connected to the programmable logic device in this embodiment, Vin is connected to the standby voltage, and Vout is connected to the DCMI of the active management module. The programmable logic device provides a high level for an enabling end of a first power-on control chip and provides a low level for an enabling end of a second power-on control chip in a first time period; and providing a low level for the enable terminal of the first power-on control chip and providing a high level for the enable terminal of the second power-on control chip in a second time period. Of course, since the embodiment of the present invention only uses the LTC41 circuit as an example to describe the first power-on control chip, but is not used to limit the provision of the control signal of the programmable logic device, if the first power-on control chip uses other types of circuits, the programmable logic device may also provide a low level for the enable terminal of the first power-on control chip and provide a high level for the enable terminal of the second power-on control chip in the first time period; and providing a high level for the enable terminal of the first power-on control chip and providing a low level for the enable terminal of the second power-on control chip in a second time period. The second power-on control chip may be, but is not limited to, using an LTC41 circuit as shown in fig. 5. For details, reference may be made to the description of the first power-on control chip, which is not repeated herein.
Based on the embodiment shown in fig. 4, as shown in fig. 6, which is a schematic structural diagram of a power supply control circuit of a DCMI provided in the third embodiment of the present invention, the active control unit may further include a first diode, an anode of the first diode is connected to an output end of the first power-on control chip, and a cathode of the first diode is connected to the DCMI on the active management module. And/or the standby control unit can further comprise a second diode, wherein the anode of the second diode is connected with the output end of the second power-on control chip, and the cathode of the second diode is connected with the DCMI on the standby management module. The first diode and the second diode can effectively ensure the one-way conductivity of the current.
Based on the embodiment shown in fig. 4, as shown in fig. 7, which is a schematic structural diagram of a power supply control circuit of a DCMI according to a fourth embodiment of the present invention, the active control unit may further include a first switching device, where the first switching device is connected between the programmable logic device and an enable end of the first power-on control chip, and is used to control whether a control signal of the programmable logic device can be transmitted to the enable end of the first power-on control chip. And/or, the standby control unit can further comprise a second switching device, the second switching device is connected between the programmable logic device and the enable terminal of the second upper electric control chip, and is used for controlling whether the control signal of the programmable logic device can be transmitted to the enable terminal of the second upper electric control chip.
Based on the implementation shown in fig. 7, as shown in fig. 8, the above-mentioned programmable logic device may include a first programmable logic device and a second programmable logic device, which are a schematic structural diagram of a power supply control circuit of a DCMI according to a fifth embodiment of the present invention. The first programmable logic device is arranged inside the main management module, and the second programmable logic device is arranged inside the standby management module. The first switching device may include an input terminal, an output terminal, and an enable terminal, and the second switching device may include an input terminal, an output terminal, and an enable terminal. The first switch device and the second switch device are used for controlling the conduction between the input end and the output end through control signals on the respective enabling ends. The types of the first switching device and the second switching device may be optical couplers, MOS transistors, or others, and those skilled in the art may flexibly select the types according to actual situations, which is not limited herein. The first programmable logic device outputs a control signal to an enable terminal of the first switch device, and the second programmable logic device outputs a control signal to an input terminal of the first switch device. The second programmable logic device outputs a control signal to an enable end of the second switch device, and the first programmable logic device outputs a control signal to an input end of the second switch device.
Here, an output signal of the output terminal of the first switching device is referred to as a presence sensing (present) signal, and is used for the active management module to sense whether the standby management module is inserted into the presence sensing (present) signal. The default state, the unpowered state, of the first switching device is open. The opening and closing of the first switching device is controlled by the DCMI connected to its enable terminal. Since the programmable logic device's corner is a high impedance state by default, the present signal of the first switching device is pulled high by default. So in this embodiment, the present signal is active low by default. That is, when the DCMI on the active management module controls the enable terminal of the first switching device to close the first switching device, and then the input signal at the input terminal of the first switching device is at a low level, it indicates that the active management module senses that the standby management module is inserted into the slot.
Similarly, the output signal of the output terminal of the second switching device is also referred to as a presence sensing (present) signal, and is used for the standby management module to sense whether the presence signal is inserted into the active management module. The default state, the unpowered state, of the second switching device is open. The opening and closing of the second switching device is controlled by the DCMI connected to its enable terminal. Since the programmable logic device's corner is a high impedance state by default, the present signal of the second switching device is pulled high by default. So in this embodiment, the present signal is active low by default. That is, when the DCMI on the standby management module controls the enable terminal of the second switching device to close the second switching device, and then the input signal at the input terminal of the second switching device is at a low level, it indicates that the standby management module senses that the active management module is inserted into the slot.
Of course, the first programmable logic device may also output the control signal to the enable terminal of the second switch device, the second programmable logic device may output the control signal to the input terminal of the second switch device, the second programmable logic device may output the control signal to the enable terminal of the first switch device, and the first programmable logic device may output the control signal to the input terminal of the first switch device. The above embodiments are only described by taking the former case as an example, but are not intended to limit the scope of the present invention.
The design mode multiplexes the existing programmable logic devices in the main management module and the standby management module, thereby reducing the investment of hardware cost. Meanwhile, the two existing programmable logic devices provide signals for the first switch device and the second switch device, cooperate with each other, and accurately provide control signals, so that the standby voltage is effectively provided for the main management module in the first time period, and the standby voltage is provided for the standby management module in the second time period.
Based on the embodiments shown in the above figures, as shown in fig. 9, which is a schematic structural diagram of a power supply control circuit of a DCMI according to a sixth embodiment of the present invention, the active control unit may further include a first pull-up resistor, where the first pull-up resistor is disposed between the input terminal and the enable terminal of the first power-up control chip. And/or, the standby control unit may further include a second pull-up resistor disposed between the input terminal and the enable terminal of the second power-up control chip. The main function of the first pull-up resistor and the second pull-up resistor is to pull the present signal high.
On the basis of the foregoing embodiment, as shown in fig. 10, in a schematic structural diagram of a power supply control circuit of a DCMI provided in the seventh embodiment of the present invention, the active control unit may further include a first voltage converter, an input end of the first voltage converter is connected to an output end of the system voltage, an output end of the first voltage converter is connected to the DCMI on the active management module, and the first voltage converter is configured to convert the system voltage into a voltage equal to the standby voltage and supply the voltage to the DCMI on the active management module. And/or, the standby control unit may further include a second voltage converter, an input terminal of the second voltage converter is connected to an output terminal of the system voltage, and an output terminal of the second voltage converter is connected to the DCMI on the standby management module, and the second voltage converter is configured to convert the system voltage into a voltage equal to the standby voltage and provide the voltage to the DCMI on the standby management module. In the embodiment of the present invention, both the first voltage converter and the second voltage converter may be on-board voltage conversion modules. Furthermore, the active control unit may further include a third diode, a positive electrode of the third diode is connected to the output terminal of the first voltage converter, and a negative electrode of the third diode is connected to the DCMI of the active management module; and/or the standby control unit further comprises a fourth diode, wherein the anode of the fourth diode is connected with the output end of the second voltage converter, and the cathode of the fourth diode is connected with the DCMI on the standby management module.
In this embodiment, the cathodes of the first diode and the third diode may be connected together and then connected to the DCMI on the active management module. The purpose of using these two diodes is to make redundancy for the standby voltage of the system voltage conversion as well as the actual standby voltage. The DCMI will be powered as long as any one of the voltages is present, and the two voltages will not interfere with each other, allowing seamless switching.
Similarly, the cathodes of the second and fourth diodes are connected together and then to the DCMI on the standby management module. The purpose of using these two diodes is to make redundancy for the standby voltage of the system voltage conversion as well as the actual standby voltage. The DCMI will be powered as long as any one of the voltages is present, and the two voltages will not interfere with each other, allowing seamless switching.
The following describes in detail the operation of the DCMI power supply control circuit according to the embodiment of the present invention, by taking a schematic structural diagram of a dual-engine modular switch according to an eighth embodiment of the present invention shown in fig. 11 as an example. The total number is seven cases as follows:
the first case is that only the slot 1 engine is in place. In this case, if the modular switch is in a standby state, only the standby voltage is supplied in the power supply module. The CPLD pin of the slot 2 engine outputs a high level, and the CPLD of the slot 1 engine controls the first switch device to be conducted, so that the present signal of the slot 1 engine is ensured to be the high level, therefore, the first control chip is conducted, and the DCMI of the slot 1 engine is powered by the standby voltage. When the control pin of the power module controls the voltage output of the system, other circuit parts of the slot 1 engine adopt the system voltage to supply power.
The second case is that only the slot 2 engine is in place. In this case, if the modular switch is in a standby state, only the standby voltage is supplied in the power supply module. The slot position 1 engine is not in place, the CPLD of the slot position 2 controls the second switching device to be not conducted, and the present signal of the slot position 2 engine is ensured to be high level, so that the second control chip is conducted, and the DCMI of the slot position 2 engine is powered by standby voltage. When the control pin of the power module controls the voltage output of the system, other circuit parts of the slot 2 engine adopt the system voltage to supply power.
The third case is that slot 1 engine and slot 2 engine are in place simultaneously. In this case, if the modular switch is in a standby state, only the standby voltage is supplied in the power supply module. The CPLD pin of the slot 2 engine outputs a high level, and the CPLD of the slot 1 engine controls the first switch device to be conducted, so that the present signal of the slot 1 engine is ensured to be the high level, therefore, the first control chip is conducted, and the DCMI of the slot 1 engine is powered by a standby power supply. Because the slot 1 engine is in place, the ground wire of the slot 1 engine (that is, the CPLD of the slot 1 engine can be understood to output a low level, and the CPLD of the slot 2 engine controls the second switch device to be turned on, the present signal of the slot 2 engine is a low level, the second control chip is turned off, and the DCMI of the slot 2 engine is not powered. After the control pin of the power module controls the system voltage output, the DCMI and other circuit parts of the slot 2 engine are powered by the system voltage.
The fourth case is that the slot 1 engine is in place and then the slot 2 engine is inserted. In this case, before insertion, as in the first case; after insertion, the same applies to the third case.
The fifth case is that slot 2 engine is in place and then slot 1 engine is inserted. In this case, before insertion, as in the second case; after insertion, the same applies to the third case.
In the sixth case, the slot 1 engine and the slot 2 engine are simultaneously in the slot, and the slot 1 engine is pulled out. In this case, before the pulling-out, the same as in the third case; after the removal, the same procedure as in the second case was repeated.
In the seventh case, the slot 1 engine and the slot 2 engine are simultaneously in the slot, and the slot 2 engine is pulled out. In this case, before the pulling-out, the same as in the third case; after the removal, the same procedure as in the first case was repeated.
In case of an engine failure, the DCMI power supply control circuit provided by the embodiment of the present invention may operate as follows: if the slot 2 engine fails, the DCMI module of the slot 1 engine still supplies power, and the remote power-on and power-off control function of the DCMI is not affected. If the slot 1 engine fails, the slot 2 engine can pull down the present signal of the slot 1 engine by controlling the CPLD of the slot 2 engine, and the DCMI of the slot 1 engine is disconnected from the standby voltage. Meanwhile, the CPLD of the slot 2 engine closes the second switch device, so that the present signal of the second control chip is pulled high, and the DCMI of the slot 2 engine is powered by the standby voltage, so that remote power-on and power-off control power supply can still be normally realized without influence.
Through the analysis of the working mode, the scheme provided by the embodiment of the invention can be known that the standby voltage only supplies power to the DCMI of one engine at any time, so that the energy consumption can be effectively saved in the standby state; secondly, as long as the standby voltage exists, at least one DCMI in the modular switch is powered, and a user can carry out remote operation through the DCMI; thirdly, after the system voltage works, the double engines have a redundancy effect, and the modular switch cannot be abnormal when any engine is plugged.
The embodiment of the invention also comprises a modularized device, which comprises a power supply module and a management module which are connected with each other through a backboard, wherein the power supply module outputs a standby power supply and a system power supply, and the management module comprises a main management module and a standby management module. Further, a power supply control circuit of the DCMI as provided in the above embodiments may be further included. Since the above embodiments have described such a modular device in detail, detailed description thereof is omitted.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A power supply control circuit of a data center management interface DCMI is characterized in that the power supply control circuit is connected between a power supply module and a management module; the power supply module outputs standby voltage and system voltage; the management module comprises a main management module and a standby management module; the power supply control circuit includes: the standby management module is used for controlling the power supply of the standby management module;
the main control unit is used for controlling the standby voltage to supply power to the DCMI on the main management module in a first time period; the standby control unit is used for controlling the standby voltage to supply power to the DCMI on the standby management module in a second time period; the first time period and the second time period do not coincide with each other.
2. The power supply control circuit according to claim 1, wherein the active control unit includes a first power-on control chip; the input end of the first power-on control chip is connected with the output end of the standby voltage, the output end of the first power-on control chip is connected with the DCMI on the main management module, and the enabling end of the first power-on control chip controls the input end and the output end of the first power-on control chip to be conducted in a first time period according to a control signal of a programmable logic device;
and/or the presence of a gas in the gas,
the standby control unit comprises a second power-on control chip; the input end of the second power-on control chip is connected with the output end of the standby voltage, and the output end of the second power-on control chip is connected with the DCMI on the standby management module; and the enabling end of the second power-on control chip controls the input end and the output end of the second power-on control chip to be conducted in a second time period according to a control signal of the programmable logic device.
3. The power supply control circuit of claim 2, wherein when the active control unit comprises a first power-on control chip and the standby control unit comprises a second power-on control chip;
the programmable logic device provides a high level for the enabling end of the first power-on control chip and provides a low level for the enabling end of the second power-on control chip in a first time period; providing a low level for an enabling end of the first power-on control chip and providing a high level for an enabling end of the second power-on control chip in a second time period;
or,
the programmable logic device provides a low level for the enabling end of the first power-on control chip and provides a high level for the enabling end of the second power-on control chip in a first time period; and providing a high level for the enable terminal of the first power-on control chip and providing a low level for the enable terminal of the second power-on control chip in a second time period.
4. The power supply control circuit according to claim 2, wherein the active control unit further comprises a first diode, an anode of the first diode is connected to the output terminal of the first upper electric control chip, and a cathode of the first diode is connected to the DCMI of the active management module;
and/or the presence of a gas in the gas,
the standby control unit further comprises a second diode, the anode of the second diode is connected with the output end of the second power-on control chip, and the cathode of the second diode is connected with the DCMI on the standby management module.
5. The power supply control circuit of claim 2, wherein the active control unit further comprises a first switching device; the first switch device is connected between the programmable logic device and the enable end of the first upper electric control chip and is used for controlling whether a control signal of the programmable logic device can be transmitted to the enable end of the first upper electric control chip or not;
and/or the presence of a gas in the gas,
the standby control unit further comprises a second switching device; the second switch device is connected between the programmable logic device and the enabling end of the second upper electric control chip and is used for controlling whether the control signal of the programmable logic device can be transmitted to the enabling end of the second upper electric control chip or not.
6. The power supply control circuit of claim 5, wherein the programmable logic device comprises a first programmable logic device and a second programmable logic device; the first programmable logic device is arranged in the main management module; the second programmable logic device is arranged in the standby management module; the first switching device comprises an input end, an output end and an enabling end; the second switching device comprises an input end, an output end and an enabling end;
the first programmable logic device outputs a control signal to an enabling end of the first switch device, and the second programmable logic device outputs a control signal to an input end of the first switch device; the second programmable logic device outputs a control signal to an enabling end of the second switch device, and the first programmable logic device outputs the control signal to an input end of the second switch device;
or, the first programmable logic device outputs a control signal to an enable end of the second switching device, and the second programmable logic device outputs a control signal to an input end of the second switching device; the second programmable logic device outputs a control signal to an enabling end of the first switch device, and the first programmable logic device outputs the control signal to an input end of the first switch device.
7. The power supply control circuit according to claim 6, wherein the active control unit includes a first pull-up resistor; the first pull-up resistor is arranged between the input end and the enable end of the first power-up control chip and used for pulling up a signal at the enable end of the first switching device to a high level;
and/or the presence of a gas in the gas,
the standby control unit comprises a second pull-up resistor; the second pull-up resistor is arranged between the input end and the enable end of the second power-up control chip, and the second pull-up resistor is used for pulling up a signal of the enable end of the second switching device to a high level.
8. The power supply control circuit according to any one of claims 2 to 7, wherein the active control unit further includes a first voltage converter, an input terminal of the first voltage converter is connected to an output terminal of the system voltage, an output terminal of the first voltage converter is connected to the DCMI on the active management module, and the first voltage converter is configured to convert the system voltage into a voltage equal to the standby voltage and provide the voltage to the DCMI on the active management module;
and/or the presence of a gas in the gas,
the standby control unit further comprises a second voltage converter, an input end of the second voltage converter is connected with an output end of the system voltage, an output end of the second voltage converter is connected with the DCMI on the standby management module, and the second voltage converter is used for converting the system voltage into a voltage equal to the standby voltage and then supplying the voltage to the DCMI on the standby management module.
9. The power supply control circuit according to claim 8, wherein the active control unit further comprises a third diode, an anode of the third diode is connected to the output terminal of the first voltage converter, and a cathode of the third diode is connected to the DCMI of the active management module;
and/or the presence of a gas in the gas,
the standby control unit further comprises a fourth diode, wherein the anode of the fourth diode is connected with the output end of the second voltage converter, and the cathode of the fourth diode is connected with the DCMI on the standby management module.
10. A modular device includes a power module and a management module connected to each other through a backplane, the power module outputting a standby voltage and a system voltage; the management module comprises a main management module and a standby management module; characterized in that it further comprises a supply control circuit of the data center management interface DCMI according to any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210337805.6A CN102916817B (en) | 2012-09-12 | 2012-09-12 | Power supply control circuit and modular equipment of data center manageability interface (DCMI) |
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| CN201210337805.6A CN102916817B (en) | 2012-09-12 | 2012-09-12 | Power supply control circuit and modular equipment of data center manageability interface (DCMI) |
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| CN102916817B true CN102916817B (en) | 2015-07-22 |
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| CN115576264B (en) * | 2022-11-10 | 2025-11-07 | 沈阳机床中捷友谊厂有限公司 | Siemens subsystem numerical control machine tool power supply design |
| CN117117942B (en) * | 2023-10-23 | 2024-02-13 | 赣州银盛电子有限公司 | Intelligent building power conversion system based on visual equipment cluster and power supply method |
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| CN1852449A (en) * | 2005-07-15 | 2006-10-25 | 华为技术有限公司 | Spare electricity system and method for realizing power supply |
| CN101114913A (en) * | 2007-08-28 | 2008-01-30 | 福建星网锐捷网络有限公司 | Modular Switch |
| CN101499910A (en) * | 2009-03-16 | 2009-08-05 | 福建星网锐捷网络有限公司 | Modulated switch and communication method thereof |
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| TWI232371B (en) * | 2002-10-09 | 2005-05-11 | Hon Hai Prec Ind Co Ltd | An uninterruptible power supply (UPS) supporting system and method |
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| CN1852449A (en) * | 2005-07-15 | 2006-10-25 | 华为技术有限公司 | Spare electricity system and method for realizing power supply |
| CN101114913A (en) * | 2007-08-28 | 2008-01-30 | 福建星网锐捷网络有限公司 | Modular Switch |
| CN101499910A (en) * | 2009-03-16 | 2009-08-05 | 福建星网锐捷网络有限公司 | Modulated switch and communication method thereof |
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Address after: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee after: RUIJIE NETWORKS Co.,Ltd. Address before: Cangshan District of Fuzhou City, Fujian province 350002 Jinshan Road No. 618 Garden State Industrial Park 19 floor Patentee before: Fujian Star-net Ruijie Network Co.,Ltd. |
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