CN111610844A

CN111610844A - Output voltage adjusting method, device, equipment and readable storage medium

Info

Publication number: CN111610844A
Application number: CN202010448641.9A
Authority: CN
Inventors: 葛剑鹏
Original assignee: Shenzhen Sundray Technologies Co ltd
Current assignee: Shenzhen Sundray Technologies Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-09-01

Abstract

The invention discloses an output voltage adjusting method, which comprises the following steps: acquiring load input voltage through a remote voltage interface; obtaining an adjusting parameter according to the load input voltage, and generating an adjusting signal according to the adjusting parameter; adjusting the output voltage of the power supply by using the adjusting signal; according to the method, the output voltage of the power supply is adjusted according to the condition of the load input voltage, the power supply can be supplemented in time when the load input voltage is insufficient, and is inhibited when the load input voltage is too high, so that the stability of the load input voltage is ensured, the operation stability of the whole board card is further improved, and the problem that the existing board card cannot operate reliably due to the unstable load input voltage is solved; in addition, the invention also provides an output voltage regulating device, an output voltage regulating device and a computer readable storage medium, and the beneficial effects are also achieved.

Description

Output voltage adjusting method, device, equipment and readable storage medium

Technical Field

The present invention relates to the field of power supply technologies, and in particular, to an output voltage adjusting method, an output voltage adjusting apparatus, an output voltage adjusting device, and a computer-readable storage medium.

Background

A plurality of power supplies are arranged on the board card, and a plurality of loads are distributed at different positions. Some chips have large loads, and the impedance of the transmission line is high, which causes the voltage value of the voltage output from the power module to be reduced when the voltage reaches the chip through long-distance transmission, thereby causing the problem of insufficient load input voltage.

In order to solve the above problems, when a reliability test is performed on a board or other device, the input voltage of the load is usually adjusted by adjusting the pull-up and pull-down resistors of the feedback pin so as to keep the input voltage at a normal level. However, in practical applications of a device such as a board, the load input voltage may vary due to various factors, which causes the load input voltage to be unstable. Therefore, the prior art is only suitable for experimental tests, but not suitable for practical application scenarios, and in practical application, the board card still easily has a reliability problem caused by unstable load input voltage, that is, the existing board card cannot reliably operate due to unstable load input voltage.

Therefore, how to solve the problem that the existing board card cannot operate reliably due to unstable load input voltage is a technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

In view of the above, the present invention provides an output voltage adjusting method, an output voltage adjusting apparatus, an output voltage adjusting device, and a computer readable storage medium, which solve the problem that the existing board cannot operate reliably due to unstable load input voltage.

In order to solve the above technical problem, the present invention provides an output voltage adjusting method, including:

acquiring load input voltage through a remote voltage interface;

obtaining an adjusting parameter according to the load input voltage, and generating an adjusting signal according to the adjusting parameter;

and adjusting the output voltage of the power supply by using the adjusting signal.

Optionally, the adjusting the power output voltage with the adjustment signal includes:

determining an output voltage of a direct current chopper as the power supply output voltage;

and inputting the adjusting signal into a control end of the direct current chopper so as to adjust the output voltage of the power supply.

Optionally, the method further comprises:

saving the load input voltage and the power supply output voltage;

when an inquiry instruction is received, constructing inquiry information by using the load input voltage and the power supply output voltage;

and outputting the query information.

Optionally, the method further comprises:

when an adjusting instruction is received, analyzing the adjusting instruction to obtain a target voltage value;

and regulating the power supply output voltage to the target voltage value.

Optionally, the obtaining the load input voltage through the remote voltage interface includes:

acquiring the load input voltage through the far-end voltage interface according to a preset period;

and/or the presence of a gas in the gas,

and when the voltage fluctuation of the load input voltage is detected to exceed a preset threshold value and the load input voltage is not in a preset interval, acquiring the load input voltage through the remote voltage interface.

acquiring an analog voltage signal of a load input end through the remote voltage interface;

and performing analog-to-digital conversion processing on the analog voltage signal by using an AD converter to obtain the load input voltage.

The present invention also provides an output voltage adjusting apparatus, including:

the acquisition module is used for acquiring load input voltage through a far-end voltage interface;

the generating module is used for obtaining an adjusting parameter according to the load input voltage and generating an adjusting signal according to the adjusting parameter;

and the adjusting module is used for adjusting the output voltage of the power supply by utilizing the adjusting signal.

The present invention also provides an output voltage regulating device comprising a memory and a processor, wherein:

the memory is used for storing a computer program;

the processor is used for executing the computer program to realize the output voltage regulation method.

Optionally, the method further comprises:

the FPWM generator is connected with the processor and is used for generating FPWM waves;

the ADC is connected with the processor and used for providing a far-end voltage interface and acquiring load input voltage;

an I2C interface coupled to the processor and the memory for loading the computer program into the processor;

and the JTAG interface is connected with the processor and used for providing a test interface.

The invention also provides a computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the output voltage regulation method described above.

According to the output voltage regulating method provided by the invention, the load input voltage is obtained through the remote voltage interface; obtaining an adjusting parameter according to the load input voltage, and generating an adjusting signal according to the adjusting parameter; and regulating the output voltage of the power supply by using the regulating signal.

Therefore, the method utilizes the remote voltage interface to obtain the load input voltage, calculates the adjusting parameter according to the load input voltage, and utilizes the adjusting parameter to generate the adjusting signal which reflects the adjusting trend required by the load input voltage, so that the adjusting signal is utilized to adjust the power supply output voltage. According to the method, the power supply output voltage is adjusted according to the condition of the load input voltage, the power supply output voltage can be supplemented in time when the load input voltage is insufficient, the power supply output voltage is inhibited when the load input voltage is too high, the stability of the load input voltage is ensured, the operation stability of the whole board card is further improved, and the problem that the existing board card cannot operate reliably due to the fact that the load input voltage is unstable is solved. Meanwhile, the upper pull-down resistor and the lower pull-down resistor do not need to be welded again, so that damage to the board card is reduced.

In addition, the invention also provides an output voltage regulating device, an output voltage regulating device and a computer readable storage medium, and the beneficial effects are also achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a flowchart of an output voltage adjusting method according to an embodiment of the present invention;

FIG. 2 is a flow chart of another output voltage regulation method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a regulating circuit according to an embodiment of the present invention;

fig. 4 is a flowchart of an information query method according to an embodiment of the present invention;

FIG. 5 is a flow chart of another output voltage regulation method according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an output voltage regulator according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an output voltage regulating device according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another output voltage regulating device according to an embodiment of the present invention;

fig. 9 is a schematic view of an application scenario provided in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In some cases, the output voltage of the power supply needs to supply power to the load through a long transmission line or a transmission line with high impedance, or when the output voltage of the power supply is low and the output current is high, the input voltage of the load cannot reach the required ideal value; in other cases, the input voltage to the load is higher than desired when the transmission line impedance is reduced for some reason or the transmission line is shortened. When a reliability test is performed on a board, the input voltage of a load is generally adjusted by replacing an upper pull-down resistor with a lower pull-down resistor. The pull-up and pull-down resistor is used for adjusting the output voltage of the power supply, so that the adjusted output voltage of the power supply can still meet the requirement of a load after transmission.

However, the method for modifying the resistance values of the pull-up and pull-down resistors can only be used for testing, and the pull-up and pull-down resistors cannot be replaced timely and frequently in actual use, so that the input voltage of the load may be unstable, and the whole board card cannot operate reliably and stably.

In order to solve the technical problem, a small number of digital power conversion chips adopt a PMbus to adjust the output voltage of a power supply at present. PMbus is Power Management Bus. Which may facilitate communication with a power converter or other device by defining transport and physical interfaces and command languages. This protocol was established by a group of power and semiconductor manufacturers that thought the development of all-digital power management solutions was inhibited by the lack of suitable standards, and was first proposed in 2003. At that time, system engineers were typically using discrete power architectures as chips became more complex and power supplies became more and more. This architecture contains a multi-stage power distribution, consisting of discrete DC/DC, plus bus repeaters, and load regulators on each node. The system is very complex, has many problems in power management, and needs a whole set of system method for power on and power off. This problem occurs both in mass production and in the final application. On the other hand, there are a small number Of loads with Voltage feedback functions to regulate the output Voltage Of the power supply, such as VR (Voltage Regulation) functions Of intel CPUs or ROV (Voltage Regulation) functions carried by Broadcom switch chips.

However, there are only a few loads for which the power chips and voltage feedback functions of the PMbus exist. For most chips and loads required in practical application, the stability of load input voltage cannot be guaranteed, and further the reliable operation of the board card cannot be guaranteed.

In order to solve the problem, the application provides an output voltage adjusting method, which includes monitoring load input voltage, generating an adjusting signal according to the condition of the load input voltage, and adjusting power supply output voltage of a power supply by using the adjusting signal, so that the transmitted load input voltage meets the requirement of a load, the stability of the load input voltage is ensured, and the whole board card can be ensured to operate reliably and stably.

Specifically, in a possible implementation manner, referring to fig. 1, fig. 1 is a flowchart of an output voltage adjusting method according to an embodiment of the present invention. The method comprises the following steps:

s101: the load input voltage is obtained through the remote voltage interface.

Each step of the output voltage adjusting method provided by the invention can be executed by a power chip, a power component or power equipment on the board card, and it should be noted that the board cards in the present application are all board cards without PMbus, and specifically can be switch hardware board cards, server board cards and the like. The load is a component or element that needs to be powered, such as an integrated circuit, a processor, and the like, it should be noted that the load in this application is a load without a voltage feedback function, and the specific content and type thereof are not limited in this embodiment. The load input voltage is a voltage value of a power input end of the load, and it should be noted that the load input voltage is a voltage value obtained by deducting a transmission line loss part from a power output voltage. When the transmission line is used for transmission, voltage can generate loss, the loss of the transmission line is different according to different factors such as the quality and the length of the transmission line, and meanwhile, the voltage value and the current value of the output voltage of the power supply can have certain influence on the loss of the transmission line. The remote voltage interface is used to obtain a remote load input voltage, and the specific form of the remote voltage interface is not limited in this embodiment, and may be, for example, an I2C interface (Inter-integrated circuit interface), or may be another possible interface.

S102: and obtaining an adjusting parameter according to the load input voltage, and generating an adjusting signal according to the adjusting parameter.

After the load input voltage is obtained, the regulating parameters are calculated by using the load input voltage. The adjusting parameters are used for generating adjusting signals, and the types and the number of the adjusting parameters are different according to different generation methods of the adjusting signals. Specifically, the adjustment parameter may be one, for example, the adjustment duty ratio; or may be plural, and may be, for example, an adjustment duty cycle and an adjustment frequency. And after the adjusting parameters are obtained through calculation, adjusting signals are generated by utilizing the adjusting parameters. The adjustment signal is used to adjust the power supply output voltage, and may be in the form of FPWM wave. The PWM is Pulse width modulation, and is an analog control method, which modulates the bias of a transistor base electrode or a MOS tube grid electrode according to the change of corresponding load to change the conduction time of the transistor or the MOS tube, thereby changing the output of the switching regulated power supply. This approach enables the output voltage of the power supply to remain constant as the operating conditions change, is a very efficient technique for controlling analog circuits using the digital output of a microprocessor, and is widely used in many fields ranging from measurement, communications to power control and conversion. The FPWM is Fast pulse width modulation, which can realize Fast response of signals, and includes a unipolar control mode and a bipolar control mode. The present embodiment does not limit the specific content and the generation method of the adjustment signal, and can be selected according to actual needs.

S103: and regulating the output voltage of the power supply by using the regulating signal.

After the adjustment signal is obtained, the power output voltage is adjusted by using the adjustment signal, that is, the power output voltage is correspondingly adjusted according to the adjustment signal. The present embodiment does not limit what kind of element, component or device the power output voltage is generated by, as long as the power output voltage can be adjusted according to the adjustment signal. Because the adjusting signal is generated according to the adjusting parameter, and the adjusting parameter reflects the condition of the load input voltage, the load input voltage can be adjusted after the power output voltage is adjusted according to the adjusting signal, so that the load input voltage is maintained at a required level, the stable operation of the load is ensured, and the stable operation of the whole board card is further ensured.

By applying the output voltage regulating method provided by the embodiment of the invention, the load input voltage is obtained by using the remote voltage interface, the regulating parameter is calculated according to the load input voltage, the regulating signal is generated by using the regulating parameter, and the regulating signal reflects the regulating trend required by the load input voltage, so that the power supply output voltage is regulated by using the regulating signal. According to the method, the power supply output voltage is adjusted according to the condition of the load input voltage, the power supply output voltage can be supplemented in time when the load input voltage is insufficient, the power supply output voltage is inhibited when the load input voltage is too high, the stability of the load input voltage is ensured, the operation stability of the whole board card is further improved, and the problem that the existing board card cannot operate reliably due to the fact that the load input voltage is unstable is solved. Meanwhile, the upper pull-down resistor and the lower pull-down resistor do not need to be welded again, so that damage to the board card is reduced.

Based on the above embodiment, in another possible implementation manner, the adjustment duty cycle and the adjustment frequency may be used as adjustment parameters, and the load input voltage may be obtained in some specific cases, so as to reduce the waste of computing resources. Referring to fig. 2, fig. 2 is a flowchart of another output voltage adjusting method according to an embodiment of the present invention, including:

s201: acquiring load input voltage through a remote voltage interface according to a preset period; and/or when the voltage fluctuation of the load input voltage is detected to exceed a preset threshold value and the load input voltage is not in a preset interval, acquiring the load input voltage through the far-end voltage interface.

In the embodiment of the present invention, in order to reduce the waste of computing resources, the subsequent steps are not performed when the load input voltage is normal and stable, and the load input voltage is acquired and the subsequent operations are performed in some special cases (i.e., in the case where the voltage is not at a normal level, in the case where the voltage is unstable, or the like). Specifically, in a possible implementation manner, the load input voltage may be obtained according to a preset period, and the preset period may be set according to an actual situation, for example, when the load has poor anti-fluctuation performance, the preset period may be set to be shorter, so as to find the change of the load input voltage in time; or when the load has stronger performance against voltage fluctuation, the preset period can be set to be larger so as to reduce the waste of computing resources as much as possible.

In another possible implementation, voltage fluctuation of the load input voltage may be detected, and when the voltage fluctuation is smaller than a preset threshold, the load input voltage is considered to be more stable; when the voltage fluctuation exceeds a preset threshold value and the load input voltage is not in a preset interval, the load input voltage is unstable, and the work of the load and the board card can be influenced, so that the load input voltage is obtained to carry out subsequent steps, and further the output voltage of the power supply is adjusted.

In another possible embodiment, the two methods may be combined, that is, the load input voltage is obtained according to a preset period, and meanwhile, the voltage fluctuation of the load input voltage is detected, and when any one of the two conditions is triggered, the load input voltage is obtained and the subsequent steps are performed, so as to ensure the stability of the load input voltage. In addition to the above two methods, the method may be supplemented or modified according to actual situations, and the embodiment does not limit the execution condition for obtaining the load input voltage.

Specifically, the step of obtaining the load input voltage may include the following two steps:

s2011: acquiring an analog voltage signal of a load input end through a remote voltage interface;

in this embodiment, the signal directly obtained from the load input terminal through the remote voltage interface is an analog voltage signal, and the adjustment signal may be an FPWM wave. To generate the FPWM wave, it needs to be converted into a digital signal.

S2012: and performing analog-to-digital conversion processing on the analog voltage signal by using the AD converter to obtain the load input voltage.

An AD Converter (Analog-to-Digital Converter) is an Analog-to-Digital Converter, which can convert an Analog signal into a Digital signal. In this embodiment, the AD converter may be used to perform analog-to-digital conversion on the analog voltage signal to obtain the load input voltage. In another possible implementation method, the AD converter may be integrated with other components, chips or elements, and the obtaining operation and other subsequent operations of the load input voltage may be performed by using one component or chip.

S202: the regulation duty cycle and the regulation frequency are calculated using the load input voltage.

In the present embodiment, in order to accurately adjust the power supply output voltage, the adjustment parameters are determined as the adjustment duty ratio and the adjustment frequency. Specifically, after the load input voltage is obtained, the load input voltage and a preset ideal voltage are used for calculation, and the ideal voltage is a theoretical value or an ideal value of the load input voltage. The adjustment duty cycle and the adjustment frequency can be obtained through calculation, and the specific calculation process is not limited in this embodiment and can refer to related technologies.

S203: and generating the FPWM wave according to the adjusting duty ratio and the adjusting frequency.

After the adjusted duty cycle and the adjusted frequency are obtained, the FPWM wave is generated by utilizing the adjusted duty cycle and the adjusted frequency.

S204: and determining the output voltage of the direct current chopper as the output voltage of the power supply.

Specifically, in the present embodiment, a DC chopper is used as a power supply, and the DC chopper is a DC-DC (direct current) converter, which is a DC power supply device that converts a DC power with a fixed voltage value into a DC power with a variable voltage value. The present embodiment employs a direct current chopper as a power supply, and determines its output voltage as a power supply output voltage. It should be noted that, in some dc choppers, there may be multiple channels, for example, 10 channels, which may supply power to multiple loads respectively at the same time, in this case, the output voltage of the channel corresponding to the load needs to be determined as the power supply output voltage.

S205: the FPWM wave is input to the control terminal of the DC chopper so as to regulate the output voltage of the power supply.

After the power supply output voltage is determined, the FPWM wave is input into the control end of the direct current chopper, so that the direct current chopper adjusts the power supply output voltage according to the FPWM wave. The control terminal is a voltage regulation control terminal, and is not a generation control terminal of the power supply, that is, the control terminal is not used for inputting a control signal to output a voltage, but is used for adjusting the output voltage.

In this embodiment, the adjustment signal is an FPWM wave, the power supply is a dc chopper, and the control terminal is an FB (FeedBack) port, so that the FPWM wave is input to the FB port of the dc chopper. When the direct current chopper has a plurality of channels, the FPWM wave is input to the FB port of the corresponding channel of the load.

Referring to fig. 3, fig. 3 is a schematic diagram of a regulating circuit structure according to an embodiment of the present invention, in which a load input voltage is a voltage at a point a, and a Vout voltage is a load output voltage. In this embodiment, an MON (monitor) interface of the FPWM generator may be used as a remote voltage interface to directly obtain a load input voltage, and the load input voltage is used to generate an FPWM wave, which passes through an FB port of the FPWM port to output a DC-DC value, so as to adjust the Vout voltage, thereby ensuring that the voltage at the point a is at an ideal level.

Based on the above embodiment, in another possible implementation, two voltages may be saved to respond to the query instruction when it is received. Referring to fig. 4 specifically, fig. 4 is a flowchart of an information query method according to an embodiment of the present invention, including:

s401: the load input voltage and the power supply output voltage are saved.

In this embodiment, the voltage value of the load input voltage and the voltage value of the power supply output voltage are stored for subsequent reference. The specific form of saving is not limited in this embodiment, and for example, the new data may be saved as two sets of data, that is, the load input voltage and the power output voltage, and the new data is saved by updating the two sets of data; or the data can be stored as a plurality of groups of data, and after the load input voltage and the power supply output voltage are obtained once again, a group of data is generated and stored by using the two.

S402: and when receiving the query instruction, constructing query information by using the load input voltage and the power supply output voltage.

The present embodiment does not limit the specific content and form of the query instruction, and the query instruction may query all or part of the data, for example, the query instruction may include a query element, filter the stored data by using the query element, and construct query information by using the filtered data. After receiving the query instruction, constructing query information by using the load input voltage and the power output voltage corresponding to the query instruction, where the form of the query information may be a graph or a report, and the specific form of the query information is not limited in this embodiment. The sending body of the query instruction is not limited in this embodiment, and may be directly input by the user, or the user may send the query instruction through another terminal or device, for example.

S403: and outputting the query information.

And outputting the query information after obtaining the query information so that a user can know the voltage change condition and further evaluate the operation state of the board card and the like.

Based on the above embodiment, in another possible implementation manner, the user may also directly adjust the voltage by sending an adjustment instruction. Specifically, referring to fig. 5, fig. 5 is a flowchart of another output voltage adjusting method according to an embodiment of the present invention, including:

s501: and when the adjusting instruction is received, analyzing the adjusting instruction to obtain a target voltage value.

The adjustment instruction is used for adjusting the voltage value, in this embodiment, the adjustment instruction is used for adjusting the power output voltage, and in another embodiment, the adjustment instruction may also be used for adjusting the load input voltage. The adjustment instruction includes a target voltage value, and the target voltage value can be obtained by analyzing the adjustment instruction after the adjustment instruction is obtained, where an analysis method corresponds to a generation method of the adjustment instruction, and this embodiment is not limited again.

S502: the power supply output voltage is regulated to a target voltage value.

After the target voltage value is obtained, the output voltage of the power supply can be directly regulated to the target voltage value. In another embodiment, the load input voltage may be adjusted, that is, the load input voltage is adjusted to a target voltage value, at this time, the ideal voltage of the load may be modified to the target voltage value, and the power output voltage is adjusted by the adjustment signal, so as to adjust the load input voltage.

The following describes an output voltage adjusting apparatus provided in an embodiment of the present invention, and the output voltage adjusting apparatus described below and the output voltage adjusting method described above may be referred to correspondingly.

Referring to fig. 6, fig. 6 is a schematic structural diagram of an output voltage regulator according to an embodiment of the present invention, including:

an obtaining module 610, configured to obtain a load input voltage through a remote voltage interface;

the generating module 620 is configured to obtain an adjustment parameter according to the load input voltage, and generate an adjustment signal according to the adjustment parameter;

and a regulating module 630, configured to regulate the power output voltage by using the regulating signal.

Optionally, the adjusting module 630 includes:

a determination unit for determining an output voltage of the dc chopper as a power supply output voltage;

and the input unit is used for inputting the adjusting signal to the control end of the direct current chopper so as to adjust the output voltage of the power supply.

Optionally, the method further comprises:

the storage module is used for storing the load input voltage and the power supply output voltage;

the building module is used for building query information by utilizing the load input voltage and the power supply output voltage when a query instruction is received;

and the output module is used for outputting the query information.

Optionally, the method further comprises:

the analysis module is used for analyzing the adjustment instruction when the adjustment instruction is received to obtain a target voltage value;

and the target adjusting module is used for adjusting the power supply output voltage to a target voltage value.

Optionally, the obtaining module 610 includes:

the first obtaining unit is used for obtaining load input voltage through the remote voltage interface according to a preset period;

and/or the presence of a gas in the gas,

and the obtaining unit is used for obtaining the load input voltage through the remote voltage interface when the voltage fluctuation of the load input voltage is detected to exceed a preset threshold value and the load input voltage is not in a preset interval.

Optionally, the obtaining unit 610 includes:

the analog signal acquisition unit is used for acquiring an analog voltage signal of a load input end through a far-end voltage interface;

and the analog-to-digital conversion unit is used for performing analog-to-digital conversion processing on the analog voltage signal by using the AD converter to obtain the load input voltage.

By applying the output voltage regulating device provided by the embodiment of the invention, the load input voltage is obtained, the regulating parameter is calculated according to the load input voltage, the regulating parameter is utilized to generate the regulating signal, and the regulating signal reflects the regulating trend required by the load input voltage, so that the regulating signal is utilized to regulate the power supply output voltage. The power output voltage is adjusted according to the condition of the load input voltage, the power output voltage can be supplemented in time when the load input voltage is insufficient, the power output voltage is inhibited when the load input voltage is too high, the stability of the load input voltage is ensured, the operation stability of the whole board card is further improved, and the problem that the existing board card cannot operate reliably due to the fact that the load input voltage is unstable is solved. Meanwhile, the upper pull-down resistor and the lower pull-down resistor do not need to be welded again, so that damage to the board card is reduced.

The following describes an output voltage regulating device provided by an embodiment of the present invention, and the output voltage regulating device described below and the output voltage regulating method described above may be referred to correspondingly.

Referring to fig. 7, fig. 7 is a schematic structural diagram of an output voltage regulating apparatus according to an embodiment of the present invention. The output voltage regulating device 700 may include a processor 701 and a memory 702, and may further include one or more of a multimedia component 703, an information input/information output (I/O) interface 704, and a communication component 705.

The processor 701 is configured to control the overall operation of the output voltage regulating device 700 to complete all or part of the steps in the output voltage regulating method; memory 702 is used to store various types of data to support operation at output voltage regulating device 700, such data may include, for example, instructions for any application or method operating on output voltage regulating device 700, as well as application-related data. The Memory 702 may be implemented by any type or combination of volatile and non-volatile Memory devices, such as one or more of Static Random Access Memory (SRAM), Electrically erasable Programmable Read-Only Memory (EEPROM), erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic or optical disk.

The multimedia components 703 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 702 or transmitted through the communication component 705. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 704 provides an interface between the processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the output voltage regulating device 700 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them, so that the corresponding Communication component 707 may include: Wi-Fi part, Bluetooth part, NFC part.

The output voltage adjusting apparatus 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, and is used to perform the output voltage adjusting method according to the above embodiments.

Optionally, the output voltage regulating device 700 further includes:

Based on the above embodiments, please refer to fig. 8, fig. 8 is a schematic structural diagram of another output voltage regulating device according to an embodiment of the present invention, which includes a processor, an ADC converter, a GPIO, an I2C interface, a JTAG interface, and an FPWM generator. The ADC is an AD converter, and is connected to the processor, and is configured to monitor a far-end voltage, and convert a far-end analog signal into a digital signal, that is, to obtain a load input voltage. The GPIO is General Purpose Input Output (GPIO), and the Input/Output direction of the GPIO can be configured through software, so that different logic functions can be set, such as an enable signal, an interrupt signal, a reset signal and the like. The I2C interface is used for loading programs into the processor, and can be used for connecting with an external simulator to a computer, and performing operations such as controlling the chip or viewing monitoring information through the interactive interface of the computer. The external controller may also access the processor through the I2C channel while the board and voltage regulation device are running. The JTAG interface is a Joint Test action group interface, and is a Test interface. JTAG (Joint Test Action Group) is an international standard Test protocol (IEEE 1149.1 compatible) and is mainly used for chip internal Test. The FPWM generator is used to generate FPWM waves.

When the output voltage adjusting device works, the ADC converter is used for acquiring load input voltage and sending the load input voltage to the FPWM generator, the FPWM generator generates FPWM waves and sends the FPWM waves to the processor, and the processor sends the FPWM waves to the control end of the direct current chopper through the GPIO to complete adjustment of power supply output voltage. Furthermore, the output voltage regulating device can be integrated with a direct current chopper, and the FPWM generator directly sends the FPWM wave to the direct current chopper and supplies power to a load by utilizing the direct current chopper.

Based on the above embodiments, the present embodiment will explain a specific application scenario of the output voltage regulating device. In this embodiment, the output voltage adjusting apparatus is applied to a board, please refer to fig. 9, and fig. 9 is a schematic view of an application scenario provided in the embodiment of the present invention. The output voltage regulator device monitors the load input terminal VIN1 of the load 1 through the MON1 interface, where VIN1 is far-end, i.e., the load input terminal that generates transmission line loss. The FPWM1 of the output voltage regulator is connected to FB1 for controlling DC-DC 1, and the power output port of DC-DC 1 is connected to VIN1 for supplying power to the load 1. The DC-DC 2 supplies power to the load 2 and the load 3 simultaneously, and the power output port is connected to VIN2 and VIN3, and VIN2 is near-end, so that no transmission loss occurs, and thus no monitoring of the load input voltage is required. VIN3 is remote, so the voltage of VIN3 is monitored by MON2 and connected to FB2 by FPWM2 to regulate the load input voltage of load 3. It should be noted that the DC-DC 2 has two channels, and FB2 is a control terminal of the channel corresponding to the load 3, so that the voltage of VIN3 can be adjusted through FB2 without any influence on the voltage of VIN 2.

The following describes a computer-readable storage medium provided by an embodiment of the present invention, and the computer-readable storage medium described below and the output voltage adjusting method described above may be referred to correspondingly.

The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the output voltage adjusting method described above.

The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

Finally, it should also be noted that, herein, relationships such as first and second, etc., are intended only to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms include, or any other variation is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The output voltage adjusting method, the output voltage adjusting apparatus, the output voltage adjusting device and the computer readable storage medium provided by the present invention are described in detail above, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. An output voltage regulation method, comprising:

acquiring load input voltage through a remote voltage interface;

2. The output voltage regulation method of claim 1, wherein the regulating the power supply output voltage with the regulation signal comprises:

3. The output voltage regulation method of claim 1, further comprising:

saving the load input voltage and the power supply output voltage;

and outputting the query information.

4. The output voltage regulation method of claim 1, further comprising:

and regulating the power supply output voltage to the target voltage value.

5. The output voltage regulation method of claim 1, wherein obtaining the load input voltage through the remote voltage interface comprises:

and/or the presence of a gas in the gas,

6. The output voltage regulation method of claim 1, wherein obtaining the load input voltage through the remote voltage interface comprises:

7. An output voltage regulating device, comprising:

8. An output voltage regulation device comprising a memory and a processor, wherein:

the memory is used for storing a computer program;

the processor for executing the computer program to implement the output voltage regulation method of any one of claims 1 to 6.

9. The output voltage adjustment device of claim 8, further comprising:

10. A computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the output voltage regulation method of any one of claims 1 to 6.