WO2021043300A1 - Operation frequency adjustment method for switched power supply, and device - Google Patents

Operation frequency adjustment method for switched power supply, and device Download PDF

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Publication number
WO2021043300A1
WO2021043300A1 PCT/CN2020/113719 CN2020113719W WO2021043300A1 WO 2021043300 A1 WO2021043300 A1 WO 2021043300A1 CN 2020113719 W CN2020113719 W CN 2020113719W WO 2021043300 A1 WO2021043300 A1 WO 2021043300A1
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Prior art keywords
power supply
switching power
frequency
switching
management unit
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PCT/CN2020/113719
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French (fr)
Chinese (zh)
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谭建
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中兴通讯股份有限公司
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Publication of WO2021043300A1 publication Critical patent/WO2021043300A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/1563—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators without using an external clock
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

Definitions

  • the invention relates to the field of power supply for communication equipment, and in particular to a method and device for adjusting the operating frequency of a switching power supply.
  • the open-loop mode bus module is used to reduce the bus voltage inside the board and improve the efficiency of each voltage conversion circuit inside the board; reduce the LDO of the linear voltage regulator on the board.
  • the embodiment of the present invention provides a method and device for adjusting the operating frequency of a switching power supply, so as to at least solve the problem of how to ensure that the switching power supply circuit operates at the optimal efficiency point in the case of load changes in the related art.
  • a method for adjusting the operating frequency of a switching power supply including: a management unit obtains current load information of the switching power supply in a circuit; and the management unit queries the pre-stored information according to the current load information. The corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions; the management unit adjusts the operating frequency of the switching power supply according to the query result.
  • obtaining the load information of the switching power supply in the circuit by the management unit includes: the management unit obtains the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
  • the management unit before the management unit queries the pre-stored correspondence table of the switching frequency and efficiency of the switching power supply under different load conditions, it further includes: comparing the correspondence between the switching frequency and efficiency of the switching power supply under different load conditions The table is stored in the storage unit.
  • the management unit inquiring a pre-stored correspondence table of the switching frequency and efficiency of the switching power supply under different load conditions includes: the management unit inquiring the correspondence table to determine that under the current load condition of the switching power supply, The switching frequency of the switching power supply has the highest power efficiency.
  • the management unit adjusting the operating frequency of the switching power supply according to the query result includes: the management unit adjusting the operating frequency of the switching power supply to the inquired switching frequency.
  • the management unit adjusts the operating frequency of the switching power supply through at least one of the following: adjusting the operating frequency of the switching power supply by adjusting the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply through the I2C frequency modulation command Describe the operating frequency of the switching power supply.
  • adjusting the operating frequency of the switching power supply by adjusting the operating frequency of the switching power supply chip to set the parameters of the pin RT includes one of the following: adjusting the switching power supply by adjusting the resistance value or the grounding capacitance value of the pin RT grounded Working frequency.
  • the management unit when acquiring the current load information of the switching power supply in the circuit, the management unit also acquires the temperature information of the switching power supply.
  • the method further includes: monitoring the operating state of the switching power supply by monitoring the voltage, current, and temperature values of the switching power supply.
  • a device for adjusting the operating frequency of a switching power supply is located in a switching power supply circuit and includes: an acquisition module configured to acquire current load information of the switching power supply in the switching power supply circuit; and query The module is configured to query a pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information; the adjustment module is configured to adjust the operating frequency of the switching power supply according to the query result.
  • the acquiring module is further configured to acquire the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
  • the device may further include: a storage module configured to store a corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions.
  • the query module is further configured to query the correspondence table to determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
  • the adjustment adjusts the operating frequency of the switching power supply by at least one of the following: adjusting the operating frequency of the switching power supply by adjusting the parameters of the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply through an I2C frequency modulation command The operating frequency of the switching power supply.
  • the referred device may further include: a monitoring module configured to monitor the operating state of the switching power supply by monitoring the voltage, current, and temperature values of the switching power supply.
  • a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in the above method embodiment when running.
  • an electronic device including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the foregoing method embodiments Steps in.
  • the efficiency and frequency correspondence tables of the switching power supplies of all levels of the system under different loads are stored in advance.
  • the efficiency and frequency correspondence tables are used to change the switches at all levels according to the system load.
  • the operating frequency of the power circuit reduces the switching loss in the circuit and achieves the purpose of improving efficiency.
  • Fig. 1 is a flowchart of a method for adjusting the operating frequency of a switching power supply according to an embodiment of the present invention
  • Fig. 2 is a schematic diagram of frequency adjustment of a single power supply according to an embodiment of the present invention
  • Fig. 3 is a schematic diagram of frequency adjustment of multiple power supplies in parallel according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of frequency logic of a single-board bus power module according to an embodiment of the present invention
  • Fig. 5 is a schematic diagram of a frequency adjustment logic of a POL power supply according to an alternative embodiment of the present invention.
  • Fig. 6 is a schematic structural diagram of a switching power supply operating frequency adjusting device according to an embodiment of the present invention.
  • Fig. 7 is a schematic structural diagram of a switching power supply operating frequency adjusting device according to an alternative embodiment of the present invention.
  • FIG. 1 is a flowchart of the method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 the management unit obtains current load information of the switching power supply in the circuit
  • Step S104 The management unit queries the pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information;
  • Step S106 The management unit adjusts the operating frequency of the switching power supply according to the query result.
  • step S102 of this embodiment the management unit obtains the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
  • the method may further include: storing the corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions in a storage unit.
  • step S104 of this embodiment the management unit queries the correspondence table to determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
  • step S106 of this embodiment the management unit adjusts the operating frequency of the switching power supply to the inquired switching frequency.
  • the management unit adjusts the operating frequency of the switching power supply through at least one of the following: adjusting the operating frequency of the switching power supply by adjusting the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply through I2C frequency modulation Instructions to adjust the operating frequency of the switching power supply.
  • the operating frequency of the switching power supply can be adjusted by adjusting the resistance value or the grounding capacitance value of the pin RT grounded.
  • the management unit when acquiring the current load information of the switching power supply in the circuit, may also acquire the temperature information of the switching power supply.
  • the method may further include: monitoring the operating state of the switching power supply by monitoring the voltage, current, and temperature of the switching power supply.
  • FIG. 2 shows a schematic diagram of frequency adjustment logic of a single power supply according to an embodiment of the present invention
  • FIG. 3 shows a schematic diagram of frequency adjustment logic of multiple parallel power supplies according to an embodiment of the present invention.
  • the entire communication system supplies power to each single board load of the system through a primary power supply module (for example, AC/DC (DC/DC) or high-voltage direct current module, etc.).
  • a primary power supply module for example, AC/DC (DC/DC) or high-voltage direct current module, etc.
  • the entire communication system supplies power to each single board load of the system by connecting multiple primary power modules in parallel.
  • the primary power supply modules used alone or in parallel for supplying power to the system all have an adjustable switching frequency.
  • the primary power module can work at different switching frequencies under different loads and working environment temperatures.
  • the power conversion efficiency of the primary power module at each frequency is different, corresponding to different loads, there is an optimal operating frequency point.
  • the storage unit of the system management unit (system management single board) stores a load-efficiency-frequency comparison table, which records the correspondence between the efficiency of the power module and the switching frequency under each load.
  • the system management unit reads the real-time power value (including current, voltage and load information) of each primary power supply module, and then obtains the operating temperature of each primary power supply through the temperature sampling circuit, and queries according to the current load of each primary power supply module Load-efficiency-frequency comparison table to obtain the optimal switching frequency, and issue frequency adjustment instructions to each primary power supply module.
  • the system management unit can ensure the power supply by reading the internal temperature and output voltage of each primary power supply. The working condition is stable.
  • Fig. 4 shows a schematic diagram of frequency logic of a single-board bus power supply module according to an embodiment of the present invention.
  • the system management unit reads the operating environment temperature of the board, the bus voltage of the board, and the output current of the module. Based on this information, query the saved load frequency correspondence table, which records the optimal frequency of the power supply under various load conditions, so as to set the power supply circuit to the optimal operating frequency and improve the operating efficiency of the power supply module.
  • FIG. 5 shows a logic schematic diagram of frequency adjustment of a POL power supply according to an embodiment of the present invention.
  • the non-isolated power supply inside the single board, the output load of the voltage conversion chip, the input voltage, the output voltage, and the frequency relationship curve are stored in the system management unit.
  • the frequency can be changed by changing the chip operating frequency setting pin RT (generally non-isolated power control chips are designed with this pin or pins with similar functions).
  • Frequency modulation can be achieved by adjusting the resistance value of RT grounding resistor R.
  • Some chips can achieve frequency modulation by adjusting the capacitance value of RT grounding capacitor C.
  • the RC charging circuit realizes the slow change of the RT resistance value or the frequency setting capacitance value to ensure that the circuit loop is not subject to sudden changes and remains stable.
  • the power chip with PMBUS bus interface can use I2C frequency modulation commands, and the system management board can directly transmit commands through the SDA and SCK signal lines according to the actual power consumption of the system.
  • the management units at all levels of the communication equipment system use the storage unit to store the corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions.
  • the system can read the operating temperature, operating voltage, load current and other information of the device through software or hardware, compare the stored information of the optimal efficiency point of the power supply, and adjust the operating frequency of the switching power supply circuit in real time. Make each circuit work at the optimal operating point, while the system monitors the voltage, current and temperature of each power supply to meet the threshold requirements of the system and ensure the stability of the system.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) execute the method described in each embodiment of the present invention.
  • a terminal device which can be a mobile phone, a computer, a server, or a network device, etc.
  • a device for adjusting the operating frequency of a switching power supply is also provided.
  • the device is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated.
  • the term "module” or "unit” can be a combination of software and/or hardware that implements a predetermined function.
  • the devices described in the following embodiments are preferably implemented by software, implementation by hardware or a combination of software and hardware is also possible and conceived.
  • FIG. 6 is a structural block diagram of a device for adjusting the operating frequency of a switching power supply according to an embodiment of the present invention. As shown in FIG. 6, the device is located in a switching power supply circuit. The device includes an acquisition module 10, an inquiry module 20, and an adjustment module 30.
  • the acquiring module 10 is configured to acquire the current load information of the switching power supply in the switching power supply circuit.
  • the query module 20 is configured to query a pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information.
  • the adjustment module 30 is configured to adjust the operating frequency of the switching power supply according to the query result.
  • FIG. 7 is a structural block diagram of a device for adjusting the operating frequency of a switching power supply according to an embodiment of the present invention. As shown in FIG. 7, the device includes the acquisition module 10, the query module 20, and the adjustment module 30 shown in FIG. Storage module 40 and monitoring module 50.
  • the storage module 40 is configured to store a corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions.
  • the monitoring module 50 is configured to monitor the operating state of the switching power supply by monitoring the voltage, current, and temperature of the switching power supply.
  • the acquiring module 10 is further configured to acquire the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
  • the query module 20 is further configured to query a pre-stored correspondence table of switching frequency and efficiency, and determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
  • the operating frequency of the switching power supply can be adjusted by at least one of the following: adjusting the operating frequency of the switching power supply chip by adjusting the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply by the I2C frequency modulation command The operating frequency of the switching power supply.
  • each of the above modules can be implemented by software or hardware.
  • it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination.
  • the forms are located in different processors.
  • the embodiment of the present invention also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • the foregoing storage medium may include, but is not limited to: U disk, Read-Only Memory (Read-Only Memory, ROM for short), Random Access Memory (Random Access Memory, RAM for short), Various media that can store computer programs, such as mobile hard disks, magnetic disks, or optical disks.
  • An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in the foregoing method embodiment.
  • the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
  • modules or steps of the present invention can be implemented by a general computing device, and they can be concentrated on a single computing device or distributed in a network composed of multiple computing devices.
  • they can be implemented with program codes executable by the computing device, so that they can be stored in the storage device for execution by the computing device, and in some cases, can be executed in a different order than here.

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Abstract

Provided is a method for adjusting an operation frequency of a switched power supply to improve overall power supply operation efficiency of a communication system. The method comprises: a management unit acquiring current load information of a switched power supply in a circuit; the management unit querying, according to the current load information, a pre-stored correspondence relationship table of switching frequencies and efficiency of the switched power supply under different load conditions; and the management unit adjusting an operation frequency of the switched power supply according to a query result. The invention pre-stores an efficiency-to-frequency correspondence table for different loads for a switched power supply in each stage of a system, and during system operations, the operation frequency of the switched power supply in each stage is modified according to a load condition of the system on the basis of the efficiency-to-frequency correspondence table, thereby reducing switching losses in a circuit, and improving efficiency. In addition, the management unit monitors information of the circuit, such as a voltage, a current, a power, and a temperature to ensure that a power supply system is operating in a stable state.

Description

开关电源的工作频率调整方法及装置Method and device for adjusting working frequency of switching power supply 技术领域Technical field
本发明涉及通信设备供电领域，具体而言，涉及一种开关电源的工作频率调整方法及装置。The invention relates to the field of power supply for communication equipment, and in particular to a method and device for adjusting the operating frequency of a switching power supply.
背景技术Background technique
随着通信设备发展，单板的功率密度增加明显，CPU、图像处理器、网络处理器等器件的工作电流越来越大，系统整机功耗也增加明显，耗电量很大，因此，最大幅度的提升系统的电能转换效率，变得更加重要和紧迫。With the development of communication equipment, the power density of single boards has increased significantly, and the operating current of CPU, image processor, network processor and other devices has become larger and larger, and the power consumption of the whole system has also increased significantly, and the power consumption is large. Therefore, It has become more important and urgent to maximize the power conversion efficiency of the system.
同时，通信设备运行有明显的波峰和波谷两种状态，忙时和闲时整个系统的负载变化较大，现在运营商、互联网公司都要求系统在各种负载下均能够工作在最佳效率，最大可能提升轻载时的效率，降低能耗。At the same time, the operation of communication equipment has two obvious peaks and valleys. The load of the entire system varies greatly during busy and idle times. Now operators and Internet companies require the system to work at the best efficiency under various loads. It is possible to improve the efficiency at light load and reduce energy consumption.
目前在系统提升效率方面，有很多方法在使用，例如，使用开环模式的总线模块，降低单板内部的总线电压，提升单板内部各个电压转换电路效率；减少单板上线性调压器LDO的使用；优选工作效率最高的BUCK电路方案；半导体器件的选型方面，也都使用导通电阻最小的器件；尽可能的减小系统线路上的损耗，采用高电压的总线方案等等。At present, there are many methods in use to improve the efficiency of the system. For example, the open-loop mode bus module is used to reduce the bus voltage inside the board and improve the efficiency of each voltage conversion circuit inside the board; reduce the LDO of the linear voltage regulator on the board The use of; preferably the BUCK circuit scheme with the highest working efficiency; in the selection of semiconductor devices, the devices with the smallest on-resistance are also used; the loss on the system lines is reduced as much as possible, and the high-voltage bus scheme is adopted.
这些措施，可以提升效率，但是没法保证负载电流变化情况下，电路始终工作在最优效率点。电源是工作在固定的开关频率下，最优效率点出现在固定负载的情况下。特定开关频率和特定负载情况，在系统实际运行时，场景非常少，所以系统绝大部分时间没有工作在最优效率点。These measures can improve efficiency, but there is no guarantee that the circuit will always work at the optimal efficiency point when the load current changes. The power supply works at a fixed switching frequency, and the optimal efficiency point appears under a fixed load. For specific switching frequency and specific load conditions, there are very few scenarios when the system is actually running, so the system does not work at the optimal efficiency point most of the time.
发明内容Summary of the invention
本发明实施例提供了一种开关电源的工作频率调整方法及装置，以至少解决相关技术中在负载变化情况下，如何保证开关电源电路工作在最优效率点的问题。The embodiment of the present invention provides a method and device for adjusting the operating frequency of a switching power supply, so as to at least solve the problem of how to ensure that the switching power supply circuit operates at the optimal efficiency point in the case of load changes in the related art.
根据本发明的一个实施例，提供了一种开关电源的工作频率调整方法，包括：管理单元获取电路中的开关电源的当前负载信息；所述管理单元根据所述当前负载信息查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表；所述管理单元根据查询结果调整所述开关电源的工作频率。According to an embodiment of the present invention, there is provided a method for adjusting the operating frequency of a switching power supply, including: a management unit obtains current load information of the switching power supply in a circuit; and the management unit queries the pre-stored information according to the current load information. The corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions; the management unit adjusts the operating frequency of the switching power supply according to the query result.
其中，管理单元获取电路中的开关电源的负载信息包括：所述管理单元通过读取所述开关电源的电流和/或电压值来获取所述开关电源的负载信息。Wherein, obtaining the load information of the switching power supply in the circuit by the management unit includes: the management unit obtains the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
其中，所述管理单元查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表之前，还包括：将所述开关电源在不同负载条件下的开关频率和效率的对应关系表存储在存储单元中。Wherein, before the management unit queries the pre-stored correspondence table of the switching frequency and efficiency of the switching power supply under different load conditions, it further includes: comparing the correspondence between the switching frequency and efficiency of the switching power supply under different load conditions The table is stored in the storage unit.
其中，所述管理单元查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表包括：所述管理单元查询所述对应关系表，确定在开关电源的当前负载情况下，所述开关电源的电源效率最高的开关频率。Wherein, the management unit inquiring a pre-stored correspondence table of the switching frequency and efficiency of the switching power supply under different load conditions includes: the management unit inquiring the correspondence table to determine that under the current load condition of the switching power supply, The switching frequency of the switching power supply has the highest power efficiency.
其中，所述管理单元根据查询结果调整所述开关电源的工作频率包括：所述管理单元将所述开关电源的工作频率调整至查询到的所述开关频率。Wherein, the management unit adjusting the operating frequency of the switching power supply according to the query result includes: the management unit adjusting the operating frequency of the switching power supply to the inquired switching frequency.
其中，所述管理单元通过以下至少之一调整所述开关电源的工作频率：通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率；通过I2C调频指令来调整所述开关电源的工作频率。Wherein, the management unit adjusts the operating frequency of the switching power supply through at least one of the following: adjusting the operating frequency of the switching power supply by adjusting the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply through the I2C frequency modulation command Describe the operating frequency of the switching power supply.
其中，通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率包括以下之一：通过调整所述引脚RT接地的电阻值或接地电容值来调整所述开关电源的工作频率。Wherein, adjusting the operating frequency of the switching power supply by adjusting the operating frequency of the switching power supply chip to set the parameters of the pin RT includes one of the following: adjusting the switching power supply by adjusting the resistance value or the grounding capacitance value of the pin RT grounded Working frequency.
其中，管理单元在获取电路中的开关电源的当前负载信息时，还获取所述开关电源的温度信息。Wherein, when acquiring the current load information of the switching power supply in the circuit, the management unit also acquires the temperature information of the switching power supply.
其中，所述管理单元根据查询结果调整所述开关电源的工作频率之后，还包括：通过监控所述开关电源的电压、电流以及温度值来监控所述开关 电源工作状态。Wherein, after the management unit adjusts the operating frequency of the switching power supply according to the query result, the method further includes: monitoring the operating state of the switching power supply by monitoring the voltage, current, and temperature values of the switching power supply.
根据本发明的另一个实施例，提供了一种开关电源的工作频率调整装置，该装置位于开关电源电路中，包括：获取模块，设置为获取开关电源电路中的开关电源的当前负载信息；查询模块，设置为根据所述当前负载信息查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表；调整模块，设置为根据查询结果调整所述开关电源的工作频率。According to another embodiment of the present invention, a device for adjusting the operating frequency of a switching power supply is provided. The device is located in a switching power supply circuit and includes: an acquisition module configured to acquire current load information of the switching power supply in the switching power supply circuit; and query The module is configured to query a pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information; the adjustment module is configured to adjust the operating frequency of the switching power supply according to the query result.
其中，所述获取模块，还设置为通过读取所述开关电源的电流和/或电压值来获取所述开关电源的负载信息。Wherein, the acquiring module is further configured to acquire the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
所述装置还可以包括：存储模块，设置为存储所述开关电源在不同负载条件下的开关频率和效率的对应关系表。The device may further include: a storage module configured to store a corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions.
其中，所述查询模块，还设置为查询所述对应关系表，确定在开关电源的当前负载情况下，所述开关电源的电源效率最高的开关频率。Wherein, the query module is further configured to query the correspondence table to determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
其中，所述调整通过以下至少之一调整所述开关电源的工作频率：通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率；通过I2C调频指令来调整所述开关电源的工作频率。Wherein, the adjustment adjusts the operating frequency of the switching power supply by at least one of the following: adjusting the operating frequency of the switching power supply by adjusting the parameters of the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply through an I2C frequency modulation command The operating frequency of the switching power supply.
所指装置还可以包括：监控模块，设置为通过监控所述开关电源的电压、电流以及温度值来监控所述开关电源工作状态。The referred device may further include: a monitoring module configured to monitor the operating state of the switching power supply by monitoring the voltage, current, and temperature values of the switching power supply.
根据本发明的又一个实施例，还提供了一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行上述方法实施例中的步骤。According to another embodiment of the present invention, there is also provided a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in the above method embodiment when running.
根据本发明的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述方法实施例中的步骤。According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the foregoing method embodiments Steps in.
在本发明的上述实施例中，预先存放系统各级开关电源的在不同负载下的效率与频率对应表，在系统运行时，根据系统的负载情况，基于效率与频率对应表来更改各级开关电源电路的工作频率，减少电路中的开关损耗，达到提升效率的目的。In the above-mentioned embodiment of the present invention, the efficiency and frequency correspondence tables of the switching power supplies of all levels of the system under different loads are stored in advance. When the system is running, the efficiency and frequency correspondence tables are used to change the switches at all levels according to the system load. The operating frequency of the power circuit reduces the switching loss in the circuit and achieves the purpose of improving efficiency.
附图说明Description of the drawings
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The drawings described here are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:
图1是根据本发明实施例的开关电源的工作频率调整方法的流程图；Fig. 1 is a flowchart of a method for adjusting the operating frequency of a switching power supply according to an embodiment of the present invention;
图2是根据本发明实施例的单电源频率调整示意图Fig. 2 is a schematic diagram of frequency adjustment of a single power supply according to an embodiment of the present invention
图3是根据本发明实施例的并联多个电源频率调整示意图Fig. 3 is a schematic diagram of frequency adjustment of multiple power supplies in parallel according to an embodiment of the present invention
图4是根据本发明实施例的单板母线电源模块的频率逻辑示意图4 is a schematic diagram of frequency logic of a single-board bus power module according to an embodiment of the present invention
图5是根据本发明可选实施例的POL电源的频率调整逻辑示意图；Fig. 5 is a schematic diagram of a frequency adjustment logic of a POL power supply according to an alternative embodiment of the present invention;
图6是根据本发明实施例的开关电源的工作频率调整装置结构示意图；Fig. 6 is a schematic structural diagram of a switching power supply operating frequency adjusting device according to an embodiment of the present invention;
图7是根据本发明可选实施例的开关电源的工作频率调整装置结构示意图。Fig. 7 is a schematic structural diagram of a switching power supply operating frequency adjusting device according to an alternative embodiment of the present invention.
具体实施方式detailed description
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict.
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。It should be noted that the terms “first” and “second” in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.
在本实施例中提供了一种运行于开关电源电路上的开关电源的工作频率调整方法，图1是根据本发明实施例的方法流程图，如图1所示，该流程包括如下步骤：In this embodiment, a method for adjusting the operating frequency of a switching power supply running on a switching power supply circuit is provided. FIG. 1 is a flowchart of the method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
步骤S102，管理单元获取电路中的开关电源的当前负载信息；Step S102, the management unit obtains current load information of the switching power supply in the circuit;
步骤S104，所述管理单元根据所述当前负载信息查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表；Step S104: The management unit queries the pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information;
步骤S106，所述管理单元根据查询结果调整所述开关电源的工作频 率。Step S106: The management unit adjusts the operating frequency of the switching power supply according to the query result.
在本实施例的步骤S102中，所述管理单元通过读取所述开关电源的电流和/或电压值来获取所述开关电源的负载信息。In step S102 of this embodiment, the management unit obtains the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
在本实施例的步骤S104之前，还可以包括：将所述开关电源在不同负载条件下的开关频率和效率的对应关系表存储在存储单元中。Before step S104 in this embodiment, the method may further include: storing the corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions in a storage unit.
在本实施例的步骤S104中，所述管理单元查询所述对应关系表，确定在开关电源的当前负载情况下，所述开关电源的电源效率最高的开关频率。In step S104 of this embodiment, the management unit queries the correspondence table to determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
在本实施例的步骤S106中，所述管理单元将所述开关电源的工作频率调整至查询到的所述开关频率。In step S106 of this embodiment, the management unit adjusts the operating frequency of the switching power supply to the inquired switching frequency.
在本实施例中，所述管理单元通过以下至少之一调整所述开关电源的工作频率：通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率；通过I2C调频指令来调整所述开关电源的工作频率。In this embodiment, the management unit adjusts the operating frequency of the switching power supply through at least one of the following: adjusting the operating frequency of the switching power supply by adjusting the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply through I2C frequency modulation Instructions to adjust the operating frequency of the switching power supply.
在本实施例中，可通过调整所述引脚RT接地的电阻值或接地电容值来调整所述开关电源的工作频率。In this embodiment, the operating frequency of the switching power supply can be adjusted by adjusting the resistance value or the grounding capacitance value of the pin RT grounded.
在本实施例中，管理单元在获取电路中的开关电源的当前负载信息时，还可以获取所述开关电源的温度信息。In this embodiment, when acquiring the current load information of the switching power supply in the circuit, the management unit may also acquire the temperature information of the switching power supply.
在本实施例的步骤S106之后，还可以包括：通过监控所述开关电源的电压、电流以及温度值来监控所述开关电源工作状态。After step S106 in this embodiment, the method may further include: monitoring the operating state of the switching power supply by monitoring the voltage, current, and temperature of the switching power supply.
为了便于对本发明所提供的技术方案的理解，下面结合不同的开关电路结构实施例进行详细的描述。In order to facilitate the understanding of the technical solutions provided by the present invention, a detailed description will be given below in conjunction with different switch circuit structure embodiments.
实施例一Example one
本实施例涉及单电源或多个并联电源的频率调整。图2示出了根据本发明实施例的单电源的频率调整逻辑示意图，图3示出了根据本发明实施例的多个并联电源的频率调整逻辑示意图。在本实施例中，如图2所示， 通讯系统整机通过一个一次电源模块(例如，AC/DC(DC/DC)或者高压直流模块等)给系统各个单板负载供电。如图3所示，通讯系统整机通过并联多个一次电源模块给系统各个单板负载供电。This embodiment relates to frequency adjustment of a single power supply or multiple power supplies in parallel. FIG. 2 shows a schematic diagram of frequency adjustment logic of a single power supply according to an embodiment of the present invention, and FIG. 3 shows a schematic diagram of frequency adjustment logic of multiple parallel power supplies according to an embodiment of the present invention. In this embodiment, as shown in FIG. 2, the entire communication system supplies power to each single board load of the system through a primary power supply module (for example, AC/DC (DC/DC) or high-voltage direct current module, etc.). As shown in Figure 3, the entire communication system supplies power to each single board load of the system by connecting multiple primary power modules in parallel.
在本实施例中，对于单独使用或并联使用的给系统供电的一次电源模块，均具有开关频率可调节功能。一次电源模块在不同的负载和工作环境温度下，可工作在不同的开关频率。一次电源模块在各个频率下的电源转换效率不同，对应不同负载，存在最佳的工作频率点。In this embodiment, the primary power supply modules used alone or in parallel for supplying power to the system all have an adjustable switching frequency. The primary power module can work at different switching frequencies under different loads and working environment temperatures. The power conversion efficiency of the primary power module at each frequency is different, corresponding to different loads, there is an optimal operating frequency point.
在本实施例中，系统管理单元(系统管理单板)的存储单元中，保存有负载-效率-频率对照表，该表记录了各个负载情况下电源模块的效率与开关频率的对应关系。In this embodiment, the storage unit of the system management unit (system management single board) stores a load-efficiency-frequency comparison table, which records the correspondence between the efficiency of the power module and the switching frequency under each load.
在设备运行中，系统管理单元读取各个一次电源模块的实时功率值(包括电流、电压和负载信息)，再通过温度采样电路获取各个一次电源工作温度，根据各个一次电源模块的当前负载，查询负载-效率-频率对照表，获得最优效率的开关频率，并向各个一次电源模块下发频率调整指令，同时，系统管理单元通过读取各个一次电源内部的温度，输出电压等情况，保证电源工作状态稳定。During the operation of the equipment, the system management unit reads the real-time power value (including current, voltage and load information) of each primary power supply module, and then obtains the operating temperature of each primary power supply through the temperature sampling circuit, and queries according to the current load of each primary power supply module Load-efficiency-frequency comparison table to obtain the optimal switching frequency, and issue frequency adjustment instructions to each primary power supply module. At the same time, the system management unit can ensure the power supply by reading the internal temperature and output voltage of each primary power supply. The working condition is stable.
实施例二Example two
本实施例涉及总线电源模块的频率调整。图4示出了根据本发明实施例的单板母线电源模块的频率逻辑示意图。如图4所示，系统管理单元读取单板的运行环境温度、单板母线电压和模块输出电流。基于这些信息，查询所保存负载频率对应表，该表记录了电源在各个负载条件下的最优频率，从而将该电源电路设定到最优工作频率，提高电源模块运行效率。This embodiment relates to frequency adjustment of the bus power module. Fig. 4 shows a schematic diagram of frequency logic of a single-board bus power supply module according to an embodiment of the present invention. As shown in Figure 4, the system management unit reads the operating environment temperature of the board, the bus voltage of the board, and the output current of the module. Based on this information, query the saved load frequency correspondence table, which records the optimal frequency of the power supply under various load conditions, so as to set the power supply circuit to the optimal operating frequency and improve the operating efficiency of the power supply module.
实施例三Example three
本实施例涉及POL(Point-of-Load,负载点)电源的频率调整。图5示出了根据本发明实施例的POL电源的频率调整逻辑示意图。如图5所示，在实施例中，单板内部各路非隔离电源、电压转换芯片的输出负载、输入电压、输出电压以及频率关系曲线存储在系统管理单元中。This embodiment relates to frequency adjustment of a POL (Point-of-Load) power supply. Fig. 5 shows a logic schematic diagram of frequency adjustment of a POL power supply according to an embodiment of the present invention. As shown in FIG. 5, in the embodiment, the non-isolated power supply inside the single board, the output load of the voltage conversion chip, the input voltage, the output voltage, and the frequency relationship curve are stored in the system management unit.
在本实施例中，对于纯模拟电源方案，可以通过改变芯片工作频率设置引脚RT(一般非隔离电源控制芯片都设计有该引脚或者类似功能的引脚)的参数来改变频率，部分芯片可以通过调整RT接地的电阻R阻值实现调频，部分芯片可以通过调整RT接地电容C的容值实现调频,为防止频率突变给电源稳定性带来影响，在实际更改频率的过程中，可以增加RC充电电路，实现RT电阻阻值或者频率设置电容值的缓慢变化，保证电路环路不受突变，维持稳定。In this embodiment, for the pure analog power solution, the frequency can be changed by changing the chip operating frequency setting pin RT (generally non-isolated power control chips are designed with this pin or pins with similar functions). Frequency modulation can be achieved by adjusting the resistance value of RT grounding resistor R. Some chips can achieve frequency modulation by adjusting the capacitance value of RT grounding capacitor C. In order to prevent sudden changes in frequency from affecting the stability of the power supply, it can be increased in the process of actually changing the frequency. The RC charging circuit realizes the slow change of the RT resistance value or the frequency setting capacitance value to ensure that the circuit loop is not subject to sudden changes and remains stable.
对于数字芯片方案，带PMBUS总线接口的电源芯片，可通过I2C调频指令，由系统管理单板根据系统实际的功耗情况，直接通过SDA，SCK信号线进行命令传输。For the digital chip solution, the power chip with PMBUS bus interface can use I2C frequency modulation commands, and the system management board can directly transmit commands through the SDA and SCK signal lines according to the actual power consumption of the system.
在本发明的上述实施例中，通讯设备系统的各级管理单元，使用存储单元存储开关电源在不同负载情况下，开关频率和效率的对应关系表格。在运行过程中，系统可通过软件方式或者硬件方式读取到设备运行的温度，工作电压，负载电流等信息，对比已经存储的电源最优效率点信息，实时的调整开关电源电路的工作频率，使各个电路工作在最优工作点，同时系统监控各路电源的电压、电流以及温度值，满足系统的门槛值要求，保证系统工作稳定。In the above-mentioned embodiment of the present invention, the management units at all levels of the communication equipment system use the storage unit to store the corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions. During operation, the system can read the operating temperature, operating voltage, load current and other information of the device through software or hardware, compare the stored information of the optimal efficiency point of the power supply, and adjust the operating frequency of the switching power supply circuit in real time. Make each circuit work at the optimal operating point, while the system monitors the voltage, current and temperature of each power supply to meet the threshold requirements of the system and ensure the stability of the system.
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) execute the method described in each embodiment of the present invention.
在本实施例中还提供了一种开关电源的工作频率调整装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下 所使用的，术语“模块”或“单元”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。In this embodiment, a device for adjusting the operating frequency of a switching power supply is also provided. The device is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated. As used below, the term "module" or "unit" can be a combination of software and/or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented by software, implementation by hardware or a combination of software and hardware is also possible and conceived.
图6是根据本发明实施例的开关电源的工作频率调整装置的结构框图，如图6所示，该装置位于开关电源电路中，该装置包括获取模块10、查询模块20和调整模块30。6 is a structural block diagram of a device for adjusting the operating frequency of a switching power supply according to an embodiment of the present invention. As shown in FIG. 6, the device is located in a switching power supply circuit. The device includes an acquisition module 10, an inquiry module 20, and an adjustment module 30.
获取模块10，设置为获取开关电源电路中的开关电源的当前负载信息。The acquiring module 10 is configured to acquire the current load information of the switching power supply in the switching power supply circuit.
查询模块20，设置为根据所述当前负载信息查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表。The query module 20 is configured to query a pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information.
调整模块30，设置为根据查询结果调整所述开关电源的工作频率。The adjustment module 30 is configured to adjust the operating frequency of the switching power supply according to the query result.
图7是根据本发明实施例的开关电源的工作频率调整装置的结构框图，如图7所示，该装置除包括图6所示的获取模块10、查询模块20和调整模块30外，还包括存储模块40和监控模块50。FIG. 7 is a structural block diagram of a device for adjusting the operating frequency of a switching power supply according to an embodiment of the present invention. As shown in FIG. 7, the device includes the acquisition module 10, the query module 20, and the adjustment module 30 shown in FIG. Storage module 40 and monitoring module 50.
存储模块40，设置为存储所述开关电源在不同负载条件下的开关频率和效率的对应关系表。监控模块50，设置为通过监控所述开关电源的电压、电流以及温度值来监控所述开关电源工作状态。The storage module 40 is configured to store a corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions. The monitoring module 50 is configured to monitor the operating state of the switching power supply by monitoring the voltage, current, and temperature of the switching power supply.
在本实施例中，所述获取模块10还设置为通过读取所述开关电源的电流和/或电压值来获取所述开关电源的负载信息。所述查询模块20还设置为：查询预存的开关频率和效率的对应关系表，确定在开关电源的当前负载情况下，所述开关电源的电源效率最高的开关频率。In this embodiment, the acquiring module 10 is further configured to acquire the load information of the switching power supply by reading the current and/or voltage value of the switching power supply. The query module 20 is further configured to query a pre-stored correspondence table of switching frequency and efficiency, and determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
在本实施例中，可以通过以下至少之一调整所述开关电源的工作频率：通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率；通过I2C调频指令来调整所述开关电源的工作频率。In this embodiment, the operating frequency of the switching power supply can be adjusted by at least one of the following: adjusting the operating frequency of the switching power supply chip by adjusting the operating frequency setting pin RT of the switching power supply chip; adjusting the operating frequency of the switching power supply by the I2C frequency modulation command The operating frequency of the switching power supply.
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。It should be noted that each of the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination. The forms are located in different processors.
本发明的实施例还提供了一种存储介质，该存储介质中存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。The embodiment of the present invention also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。Optionally, in this embodiment, the foregoing storage medium may include, but is not limited to: U disk, Read-Only Memory (Read-Only Memory, ROM for short), Random Access Memory (Random Access Memory, RAM for short), Various media that can store computer programs, such as mobile hard disks, magnetic disks, or optical disks.
本发明的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述方法实施例中的步骤。An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in the foregoing method embodiment.
可选地，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。Optionally, the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present invention can be implemented by a general computing device, and they can be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Above, alternatively, they can be implemented with program codes executable by the computing device, so that they can be stored in the storage device for execution by the computing device, and in some cases, can be executed in a different order than here. Perform the steps shown or described, or fabricate them into individual integrated circuit modules respectively, or fabricate multiple modules or steps of them into a single integrated circuit module for implementation. In this way, the present invention is not limited to any specific combination of hardware and software.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present invention should be included in the protection scope of the present invention.

Claims (17)

  1. 一种开关电源的工作频率调整方法，包括：A method for adjusting the operating frequency of a switching power supply, including:
    管理单元获取电路中的开关电源的当前负载信息；The management unit obtains the current load information of the switching power supply in the circuit;
    所述管理单元根据所述当前负载信息查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表；The management unit queries the pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information;
    所述管理单元根据查询结果调整所述开关电源的工作频率。The management unit adjusts the operating frequency of the switching power supply according to the query result.
  2. 根据权利要求1所述的方法，其中，管理单元获取电路中的开关电源的负载信息包括：The method according to claim 1, wherein the obtaining of load information of the switching power supply in the circuit by the management unit comprises:
    所述管理单元通过读取所述开关电源的电流和/或电压值来获取所述开关电源的负载信息。The management unit obtains the load information of the switching power supply by reading the current and/or voltage value of the switching power supply.
  3. 根据权利要求1所述的方法，其中，所述管理单元查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表之前，还包括：The method according to claim 1, wherein before the management unit queries the pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions, the method further comprises:
    将所述开关电源在不同负载条件下的开关频率和效率的对应关系表存储在存储单元中。The corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions is stored in the storage unit.
  4. 根据权利要求1所述的方法，其中，所述管理单元查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表包括：The method according to claim 1, wherein the query of the corresponding table of the switching frequency and the efficiency of the switching power supply under different load conditions pre-stored by the management unit comprises:
    所述管理单元查询所述对应关系表，确定在开关电源的当前负载情况下，所述开关电源的电源效率最高的开关频率。The management unit queries the correspondence table to determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
  5. 根据权利要求1所述的方法，其中，所述管理单元根据查询结果调整所述开关电源的工作频率包括：The method according to claim 1, wherein the management unit adjusting the operating frequency of the switching power supply according to the query result comprises:
    所述管理单元将所述开关电源的工作频率调整至查询到的所述开关频率。The management unit adjusts the operating frequency of the switching power supply to the inquired switching frequency.
  6. 根据权利要求5所述的方法，其中，所述管理单元通过以下 至少之一调整所述开关电源的工作频率：The method according to claim 5, wherein the management unit adjusts the operating frequency of the switching power supply through at least one of the following:
    通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率；Adjusting the operating frequency of the switching power supply chip by adjusting the operating frequency of the switching power supply chip setting pin RT;
    通过I2C调频指令来调整所述开关电源的工作频率。The operating frequency of the switching power supply is adjusted through the I2C frequency modulation command.
  7. 根据权利要求6所述的方法，其中，通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率包括以下之一：The method of claim 6, wherein adjusting the operating frequency of the switching power supply chip by adjusting the parameters of the operating frequency setting pin RT of the switching power supply chip comprises one of the following:
    通过调整所述引脚RT接地的电阻值或接地电容值来调整所述开关电源的工作频率。The operating frequency of the switching power supply is adjusted by adjusting the resistance value or the grounding capacitance value of the pin RT grounded.
  8. 根据权利要求1所述的方法，其中，管理单元在获取电路中的开关电源的当前负载信息时，还获取所述开关电源的温度信息。The method according to claim 1, wherein when acquiring the current load information of the switching power supply in the circuit, the management unit also acquires the temperature information of the switching power supply.
  9. 根据权利要求1所述的方法，其中，所述管理单元根据查询结果调整所述开关电源的工作频率之后，还包括：The method according to claim 1, wherein after the management unit adjusts the operating frequency of the switching power supply according to the query result, the method further comprises:
    通过监控所述开关电源的电压、电流以及温度值来监控所述开关电源工作状态。The working state of the switching power supply is monitored by monitoring the voltage, current and temperature values of the switching power supply.
  10. 一种开关电源的工作频率调整装置，位于开关电源电路中，包括：A working frequency adjustment device of a switching power supply is located in a switching power supply circuit and includes:
    获取模块，设置为获取开关电源电路中的开关电源的当前负载信息；The acquiring module is set to acquire the current load information of the switching power supply in the switching power supply circuit;
    查询模块，设置为根据所述当前负载信息查询预存的所述开关电源在不同负载条件下的开关频率和效率的对应关系表；A query module, configured to query a pre-stored corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions according to the current load information;
    调整模块，设置为根据查询结果调整所述开关电源的工作频率。The adjustment module is set to adjust the operating frequency of the switching power supply according to the query result.
  11. 根据权利要求10所述的电路，其中，所述获取模块还设置为：The circuit according to claim 10, wherein the acquisition module is further configured to:
    通过读取所述开关电源的电流和/或电压值来获取所述开关电源的负载信息。The load information of the switching power supply is obtained by reading the current and/or voltage value of the switching power supply.
  12. 根据权利要求10所述的装置，还包括：The device according to claim 10, further comprising:
    存储模块，设置为存储所述开关电源在不同负载条件下的开关频率和效率的对应关系表。The storage module is configured to store the corresponding table of the switching frequency and efficiency of the switching power supply under different load conditions.
  13. 根据权利要求10所述的装置，其中，所述查询模块还设置为：The device according to claim 10, wherein the query module is further configured to:
    查询所述对应关系表，确定在开关电源的当前负载情况下，所述开关电源的电源效率最高的开关频率。Query the correspondence table to determine the switching frequency of the switching power supply with the highest power efficiency under the current load condition of the switching power supply.
  14. 根据权利要求10所述的装置，其中，所述调整通过以下至少之一调整所述开关电源的工作频率：The device according to claim 10, wherein the adjustment adjusts the operating frequency of the switching power supply by at least one of the following:
    通过调整开关电源芯片工作频率设置引脚RT的参数来调整所述开关电源的工作频率；Adjusting the operating frequency of the switching power supply chip by adjusting the operating frequency of the switching power supply chip setting pin RT;
    通过I2C调频指令来调整所述开关电源的工作频率。The operating frequency of the switching power supply is adjusted through the I2C frequency modulation command.
  15. 根据权利要求10所述的装置，还包括：The device according to claim 10, further comprising:
    监控模块，设置为通过监控所述开关电源的电压、电流以及温度值来监控所述开关电源工作状态。The monitoring module is configured to monitor the working state of the switching power supply by monitoring the voltage, current and temperature values of the switching power supply.
  16. 一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行所述权利要求1至9任一项中所述的方法。A storage medium in which a computer program is stored, wherein the computer program is configured to execute the method described in any one of claims 1 to 9 when running.
  17. 一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行所述权利要求1至9任一项中所述的方法。An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the method described in any one of claims 1 to 9.
PCT/CN2020/113719 2019-09-06 2020-09-07 Operation frequency adjustment method for switched power supply, and device WO2021043300A1 (en)

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