CN111077935A - Analog power supply device and equipment comprising same - Google Patents
Analog power supply device and equipment comprising same Download PDFInfo
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- CN111077935A CN111077935A CN202010027549.5A CN202010027549A CN111077935A CN 111077935 A CN111077935 A CN 111077935A CN 202010027549 A CN202010027549 A CN 202010027549A CN 111077935 A CN111077935 A CN 111077935A
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- power supply
- controller
- operating voltage
- power
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
- G05F1/63—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc using variable impedances in series with the load as final control devices
- G05F1/648—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc using variable impedances in series with the load as final control devices being plural resistors among which a selection is made
Abstract
The present disclosure provides an analog power supply device and an apparatus including the same, the device including: the power supply is electrically connected with the electrical appliance and used for supplying power to the electrical appliance, and recommended operating voltage is stored in the electrical appliance; a variable resistor connected to the power supply for adjusting a supply voltage of the power supply by a varying resistance value; the controller is connected with the variable resistor and used for acquiring the recommended operating voltage of the electric device through a preset power protocol and controlling the resistance value of the variable resistor according to the recommended operating voltage. The controller can support and preset the power agreement, can read the required voltage of consumer to can control the power and satisfy the voltage demand of consumer, consequently the power need not to support and preset the power agreement and can be for the power supply of consumer, avoided the power because of not supporting the unable condition of using of agreement, improve the range of application of power, reduce the power and select the degree of difficulty.
Description
Technical Field
The disclosure relates to the technical field of power supplies, in particular to an analog power supply device and equipment comprising the same.
Background
With the development of technology, the scale and performance of chips are on the peak, so the power demand of chips is rapidly increased, and large chips with main power supply current of more than 200A or 300A are frequently on the market. How to solve the problems of heat dissipation and power supply design caused by power consumption rise becomes a problem which needs to be solved urgently. The chip is divided into a high-power chip and a low-power chip when leaving a factory, the high-power chip needs higher voltage to reach the nominal performance, the low-power chip needs lower voltage to reach the nominal performance, the chip is written with the required voltage when leaving the factory, when in use, the required voltage needs to be read through a specific power protocol, and the power supply voltage of the power supply is adjusted according to the required voltage; a power supply is therefore required to support the above power supply protocol.
Disclosure of Invention
The present disclosure provides an analog power supply device and an apparatus including the same.
Specifically, the present disclosure is realized by the following technical solutions:
in a first aspect, there is provided an analog power supply apparatus, the apparatus comprising:
the power supply is electrically connected with the electrical appliance and used for supplying power to the electrical appliance, and recommended operating voltage is stored in the electrical appliance;
a variable resistor connected to the power supply for adjusting a supply voltage of the power supply by a varying resistance value;
the controller is connected with the variable resistor and used for acquiring the recommended operating voltage of the electric device through a preset power protocol and controlling the resistance value of the variable resistor according to the recommended operating voltage.
Optionally, the device further comprises a processor, and the processor is respectively connected with the electric device and the controller, and is configured to obtain the recommended operating voltage of the electric device and send the recommended operating voltage to the controller through a preset power protocol.
Optionally, the powered device has a first register connected to the processor for storing the recommended operating voltage.
Optionally, the processor is connected to the first register through a PCIE bus, so that the processor reads the recommended operating voltage through a PCIE protocol.
Optionally, the processor is connected with the controller through a PMBUS bus, so that the controller obtains the recommended operating voltage of the electric device through a PMBUS protocol.
Optionally, a second register is arranged in the controller, and the second register is connected with the processor through a PMBUS, and is used for acquiring the recommended operating voltage of the electric device through a PMBUS protocol.
Optionally, the controller is connected with the variable resistor through an I2C bus or an SPI bus, so that the controller controls the resistance value of the variable resistor through an I2C protocol or an SPI protocol.
Optionally, the variable resistor comprises a digital potentiometer, and the controller is configured to control a resistance value of the digital potentiometer according to a recommended operating voltage of the power consuming device.
Optionally, the variable resistor includes a plurality of resistors with different resistance values, and the controller is connected to the plurality of resistors respectively, and is configured to select one of the resistors to be connected to the power supply according to the recommended operating voltage.
In a second aspect, there is provided an apparatus comprising any one of the above analog power supply device and an electrical device, the analog power supply device and the electrical device being provided on a same circuit board.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the embodiment of the disclosure, a power supply main body of a power supply device is formed by a power supply, the resistance of a variable resistor connected with the power supply can be adjusted, and the power supply voltage of the power supply can be adjusted by a changed resistance value, the adjustment of the resistance value of the variable resistor is completed by a controller, and the controller acquires the recommended operating voltage of an electric device through a preset power supply protocol, and then adjusts the resistance value of the variable resistor, so that the power supply voltage of the power supply can meet the inherent power consumption requirement of the electric device; the controller can support and preset the power agreement, can read the required voltage of consumer to can control the power and satisfy the voltage demand of consumer, consequently the power need not to support and preset the power agreement and can be for the power supply of consumer, avoided the power because of not supporting the unable condition of using of agreement, improved the range of application of power, also reduced the power selection degree of difficulty of consumer simultaneously.
Drawings
FIG. 1 is a schematic diagram of the power supply connections of an analog power supply apparatus shown in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the power supply connections of an analog power supply apparatus shown in an exemplary embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating an internal structure of a power supply in an analog power supply apparatus according to an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
With the development of technology, the scale and performance of chips are on the peak, so the power demand of chips is rapidly increased, and large chips with main power supply current of more than 200A or 300A are frequently on the market. How to solve the problems of heat dissipation and power supply design caused by power consumption rise becomes a problem which needs to be solved urgently. The method adopted at present is that the chip is divided into a high power consumption chip and a low power consumption chip when leaving the factory, the high power consumption chip needs higher Voltage to reach the nominal performance, the low power consumption chip only needs lower Voltage to reach the nominal performance, and the chip is written with the required Voltage (namely Recommended Operating Voltage, ROV) when leaving the factory. In use, the required voltage (i.e., the recommended operating voltage) needs to be read by a specific power protocol, and the supply voltage of the power supply is adjusted accordingly, which requires the power supply to support the protocol. Although the performance of some traditional power supply products can meet the requirements, the application range of the power supply products is limited because the protocol is not supported, and the waste of resources is caused; and also increases the difficulty of power selection of the power utilization chip.
Based on this, as shown in fig. 1, the present disclosure proposes an analog power supply apparatus, the apparatus including: the power supply 101 is electrically connected with the electric device 102 and used for supplying power to the electric device 102, and the recommended operation voltage is stored in the electric device 102.
The electrical device 102 (e.g., Broadcom Switch chip) determines its recommended operating voltage ROV through testing at the time of factory shipment, and writes the recommended operating voltage ROV into the electrical device 102 before factory shipment, preferably into a register in the electrical device 102, which supports a specific preset power protocol.
A variable resistor 104, the variable resistor 104 being connected to the power source 101 for adjusting a supply voltage of the power source 101 by a varying resistance value;
in one example, the variable resistor 104 may be a Digital Potentiometer (also called a Digital programmable resistor), which is a novel integrated circuit for processing a CMOS Digital/analog mixed signal, and the Digital Potentiometer adjusts a resistance value in a Digital control manner, and has the advantages of flexible use, high adjustment precision, interference resistance, small size, long service life, and the like.
In another example, other types of variable resistors 104 may be selected, or a plurality of resistors of different resistance values may be provided, and the resistance values may be changed by switching in different resistors.
And the controller 103 is connected with the variable resistor 104 and is used for acquiring a recommended operating voltage of the electric device 102 through a preset power protocol and controlling the resistance value of the variable resistor 104 according to the recommended operating voltage.
In one example, the controller 103 may select a Complex Programmable Logic Device (CPLD) that is larger in scale, more complex in structure, more capable of processing and computing, and more effective and stable in control than conventional programmable array logic devices (PALs) and generic array logic devices (GALs).
The controller 103 supports the preset power protocol, and can read the required voltage of the electric device 102, so that the power supply 101 can be controlled to meet the voltage requirement of the electric device 102, and therefore the power supply 101 can supply power to the electric device 102 without supporting the preset power protocol, the condition that the power supply 101 cannot be used because the power supply 101 does not support the protocol is avoided, the application range of the power supply 101 is expanded, and the difficulty in selecting the power supply 101 of the electric device 102 is reduced.
In some embodiments of the present disclosure, as shown in fig. 2, the apparatus further has a processor 205, where the processor 205 is connected to the electric device 202 and the controller 203, respectively, and is configured to obtain a recommended operating voltage of the electric device 202 and send the recommended operating voltage to the controller 203 through a preset power protocol, and a connection relationship between the power supply 201, the controller 203, and the variable resistor 204 is the same as that in fig. 1, and redundant description is not repeated here. The processor 205(CPU) can support different communication protocols simultaneously, and can communicate with both the electrical device 202 and the controller 203, and it is used as a communication intermediary between the electrical device 202 and the controller 203 to acquire the stored recommended operating voltage from the electrical device 202 (for example, by PCIE protocol) and then send the recommended operating voltage to the controller 203 (for example, by PMBUS protocol). The analog power supply device provided by the disclosure can be arranged on a circuit board, the processor 205(CPU) is an inherent device on the circuit board, and the processor 205(CPU) is originally connected with the electrical device 202, so that the communication can be realized, and only an operation of acquiring the recommended operating voltage needs to be added to the original communication content; furthermore, a connection between the processor 205 and the controller 203 is required, and the two can communicate with each other through a predetermined power protocol (e.g., PMBUS protocol).
In some embodiments of the present disclosure, as shown in fig. 2, the powered device 202 has a first register coupled to the processor 205 for storing the recommended operating voltage. The first register has a register capability and supports a preset communication protocol (e.g., PCIE protocol), and the processors 205 supporting the same communication protocol can read data of the first register, so that the processors 205 are configured to support the same communication protocol and can read the recommended operating voltage registered in the first register.
In some embodiments of the disclosure, as shown in fig. 2, the processor 205 and the first register are connected through a PCIE bus, so that the processor 205 reads the recommended operating voltage through a PCIE protocol. The PCIE bus is configured to facilitate communication between the processor 205 and the first register, and improve efficiency and accuracy of reading the recommended operating voltage by the processor 205.
In some embodiments of the present disclosure, as shown in fig. 2, the processor 205 is connected to the controller 203 via a PMBUS bus, so that the controller 203 obtains the recommended operating voltage of the electric device 202 via a PMBUS protocol. The PMBUS protocol is set as a preset power protocol, so that communication between the controller 203 and the processor 205 is facilitated, and communication efficiency of the controller 203 and the processor is improved. The PMBUS (Power Management Bus) protocol, which is commonly established by Power and semiconductor manufacturers for a group of devices that is believed to inhibit the development of all-digital Power Management solutions due to the lack of suitable standards, is an open standard digital Power Management protocol and facilitates communication with Power converters or other devices by defining transport and physical interfaces and command languages.
In some embodiments of the present disclosure, as shown in fig. 2, a second register is disposed in the controller 203, and the second register is connected to the processor 205 through a PMBUS bus, and is used for obtaining the recommended operating voltage of the electric device 202 through a PMBUS protocol. The second register is designed according to the PMBUS protocol, so that when the processor 205 communicates with the second register, the controller 203 is used as a power source for supporting the PMBUS protocol, which allows the controller 203 to obtain the recommended operating voltage in the processor 205.
In some embodiments of the present disclosure, as shown in fig. 1 and fig. 2, the controller 103, 203 and the variable resistor 104, 204 are connected through an I2C bus or an SPI bus, so that the controller 103, 203 controls the resistance value of the variable resistor 104, 204 through an I2C protocol or an SPI protocol. The variable resistor 104, 204 may be selected to be a digital potentiometer controlled by a digital input, and the I2C bus or SPI bus may enable the controller 103, 203 to have a digital input to the digital potentiometer which generates an analog output based on the input, increasing the accuracy of the control of the resistance value of the variable resistor 104, 204 and the rate of response.
In some embodiments, as shown in FIG. 3, the power supply 300 has an output terminal 302, and the voltage at the output terminal 302 is the output voltage VOUTThat is, the power supply voltage for supplying power to the power supply devices 102 and 202 shown in fig. 1 and fig. 2, the output end 302 is connected to the ground after being connected to the first resistor 304 and the second resistor 305 in turn, a feedback point 303 is located between the first resistor 304 and the second resistor 305, and the voltage at the feedback point 303 is the feedback voltage VFBThe feedback point 303 is further connected to a reference point 301 in the power supply 300, and the voltage at the reference point 301 is a reference voltage VREFAnd a feedback voltage VFBAnd a reference voltage VREFConstantly equal and output voltage VOUTAnd a feedback voltage VFBDepends on the ratio of the resistance values of the first resistor 304 and the second resistor 305, e.g. the resistance value of the first resistor 304 is R1The resistance value of the second resistor 305 is R2Then V isOUT＝VFB*(1+R1*VFB/R2). Reference voltage V of general power supply 300REFIs fixed, so that the output voltage V can be adjusted by only adjusting the resistance value ratio of the two resistorsOUTAdjustment, i.e. a change in the resistance value of at least one of the two resistors, is effected to cause the output voltage VOUTIs changed.
In some embodiments, the variable resistor 104, 204 shown in fig. 1 and 2 is disposed at the position of the first resistor 304 or the position of the second resistor 305 shown in fig. 3, when the resistance value of the variable resistor 104, 204 changes, the resistance value ratio of the two resistors changes because the resistance value of the other resistor is constant, thereby changing the power supply voltage of the power source 101, 201, 300, for example, when the variable resistor 104, 204 is disposed at the position of the first resistor 304, the resistance value of the variable resistor 104, 204 is increased, and the output voltage V can be increasedOUTThat is, the output voltage V can be reduced by increasing the power supply voltage of the power supplies 101, 201, 300 and reducing the resistance values of the variable resistors 104, 204OUTI.e. reducing the supply voltage of the power supply 101, 201, 300, in particular the relation between the variation of the resistance value of the variable resistor 104, 204 and the variation of the supply voltage, in accordance with VOUT＝VFB*(1+R1*VFB/R2) Specifically, the determination is performed in the following manner: with the recommended operating voltage ROV as the output voltage V of the power supplies 101, 102, 300OUTThen by formula VOUT＝VFB*(1+R1*VFB/R2) Calculating the resistance value of the variable resistor 104, 204, and then controlling the resistance value of the variable resistor 104, 204 to adjust to the resistance value of the calculation result, for example, the variable resistor 104, 204 is a digital potentiometer, and the calculation result can be used as an input, so that the output resistance of the variable resistor 104, 204 can be adjusted accordingly; when the variable resistor 104, 204 has a plurality of resistances, the same resistance as the calculation result is connected to the power source 101, 102, 300.
In a second aspect, there is provided an apparatus comprising any one of the above analog power supply device and an electrical device, the analog power supply device and the electrical device being provided on a same circuit board.
In one example, the powered device is a Broadcom Switch chip having a recommended operating voltage ROV stored therein.
Embodiments of the subject matter and the functional operations described in this specification can be implemented in: digital electronic circuitry, tangibly embodied computer software or firmware, computer hardware including the structures disclosed in this specification and their structural equivalents, or a combination of one or more of them. Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions, encoded on a tangible, non-transitory program carrier for execution by, or to control the operation of, data processing apparatus. Alternatively or additionally, the program instructions may be encoded on an artificially generated propagated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, that is generated to encode and transmit information to suitable receiver apparatus for execution by the data processing apparatus. The computer storage medium may be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of one or more of them.
The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform corresponding functions by operating on input data and generating output. The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit).
Computers suitable for executing computer programs include, for example, general and/or special purpose microprocessors, or any other type of central processing unit. Generally, a central processing unit will receive instructions and data from a read-only memory and/or a random access memory. The basic components of a computer include a central processing unit for implementing or executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks. However, a computer does not necessarily have such a device. Moreover, a computer may be embedded in another device, e.g., a mobile telephone, a Personal Digital Assistant (PDA), a mobile audio or video player, a game console, a Global Positioning System (GPS) receiver, or a portable storage device such as a Universal Serial Bus (USB) flash drive, to name a few.
Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices (e.g., EPROM, EEPROM, and flash memory devices), magnetic disks (e.g., an internal hard disk or a removable disk), magneto-optical disks, and CD ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any invention or of what may be claimed, but rather as descriptions of features specific to particular embodiments of particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. In other instances, features described in connection with one embodiment may be implemented as discrete components or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system modules and components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.
Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. Further, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some implementations, multitasking and parallel processing may be advantageous.
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. An analog power supply apparatus, the apparatus comprising:
the power supply is electrically connected with the electrical appliance and used for supplying power to the electrical appliance, and recommended operating voltage is stored in the electrical appliance;
a variable resistor connected to the power supply for adjusting a supply voltage of the power supply by a varying resistance value;
the controller is connected with the variable resistor and used for acquiring the recommended operating voltage of the electric device through a preset power protocol and controlling the resistance value of the variable resistor according to the recommended operating voltage.
2. The analog power supply device according to claim 1, further having a processor connected to the electric device and the controller, respectively, for obtaining a recommended operating voltage of the electric device and sending it to the controller through a preset power protocol.
3. The analog power supply unit of claim 2, wherein said powered device has a first register coupled to said processor for storing said recommended operating voltage.
4. The analog power supply unit of claim 3, wherein the processor is coupled to the first register via a PCIE bus such that the processor reads the recommended operating voltage via a PCIE protocol.
5. The analog power supply unit of claim 2, wherein the processor is coupled to the controller via a PMBUS bus such that the controller obtains the recommended operating voltage of the powered device via a PMBUS protocol.
6. The analog power supply unit according to claim 5, wherein a second register is provided in the controller, the second register being connected to the processor via a PMBUS bus for obtaining the recommended operating voltage of the power consumption device via a PMBUS protocol.
7. The analog power supply apparatus of claim 1, wherein the controller is connected to the variable resistor through an I2C bus or an SPI bus, such that the controller controls the resistance value of the variable resistor through an I2C protocol or an SPI protocol.
8. The analog power supply apparatus according to claim 1, wherein the variable resistor includes a digital potentiometer, and the controller is configured to control a resistance value of the digital potentiometer according to a recommended operating voltage of the power consuming device.
9. The analog power supply unit of claim 1, wherein said variable resistor comprises a plurality of resistors having different resistance values, and said controller is connected to each of said plurality of resistors for selecting one of said resistors to be connected to said power supply in accordance with said recommended operating voltage.
10. An apparatus comprising an analog power supply unit as claimed in any one of claims 1 to 9 and an electrical consumer, the analog power supply unit and the electrical consumer being provided on the same circuit board.
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| CN202010027549.5A CN111077935B (en) | 2020-01-10 | 2020-01-10 | Analog power supply device and equipment comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102130899A (en) * | 2010-12-28 | 2011-07-20 | 华为技术有限公司 | Power protocol management method, device and applied power system |
| CN107565813A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | Apparatus for adjusting power supply and method, the chip system and method for running chip system |
| CN108899056A (en) * | 2018-06-28 | 2018-11-27 | 郑州云海信息技术有限公司 | A kind of control system and SSD of main control chip |
| CN109951077A (en) * | 2019-03-07 | 2019-06-28 | 电子科技大学 | A kind of programme-controlled dc power module |
| CN110308338A (en) * | 2018-03-20 | 2019-10-08 | 明泰科技股份有限公司 | Online voltage adaptive regulating and measuring system |
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2020
- 2020-01-10 CN CN202010027549.5A patent/CN111077935B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130899A (en) * | 2010-12-28 | 2011-07-20 | 华为技术有限公司 | Power protocol management method, device and applied power system |
| CN107565813A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | Apparatus for adjusting power supply and method, the chip system and method for running chip system |
| CN110308338A (en) * | 2018-03-20 | 2019-10-08 | 明泰科技股份有限公司 | Online voltage adaptive regulating and measuring system |
| CN108899056A (en) * | 2018-06-28 | 2018-11-27 | 郑州云海信息技术有限公司 | A kind of control system and SSD of main control chip |
| CN109951077A (en) * | 2019-03-07 | 2019-06-28 | 电子科技大学 | A kind of programme-controlled dc power module |
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