CN112787500A - Control method, device, system, processor, terminal and medium of DC-DC converter - Google Patents
Control method, device, system, processor, terminal and medium of DC-DC converter Download PDFInfo
- Publication number
- CN112787500A CN112787500A CN202110113985.9A CN202110113985A CN112787500A CN 112787500 A CN112787500 A CN 112787500A CN 202110113985 A CN202110113985 A CN 202110113985A CN 112787500 A CN112787500 A CN 112787500A
- Authority
- CN
- China
- Prior art keywords
- frequency band
- converter
- communication frequency
- clock signal
- parameter value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dc-Dc Converters (AREA)
Abstract
A control method, device, system, processor, terminal and medium of a DC-DC converter are provided. The method comprises the following steps: acquiring a current communication frequency band in a communication mode; judging whether the current communication frequency band is a preset high-risk communication frequency band or not; and when the current communication frequency band is a preset high-risk communication frequency band, adjusting a clock signal related parameter value of the DC-DC converter so as to reduce the electromagnetic interference of the current communication frequency band. By applying the scheme, the electromagnetic interference can be reduced, and the hardware cost and the power supply efficiency are considered at the same time.
Description
Technical Field
The invention relates to the technical field of switching power supplies, in particular to a control method, a control device, a control system, a control processor, a control terminal and a control medium of a DC-DC converter.
Background
A DC-DC power converter (DC-DC converter for short), a switching power supply, mainly controls the on and off of an internal transistor through a periodic clock signal, so that the current in the internal transistor intermittently flows, thereby changing the output voltage and frequency.
Due to the switching instant, the current and voltage in the DC-DC converter have abrupt changes, namely high di/dt or dv/dt, so that high frequency electromagnetic waves are generated. When this energy leaks to the outside, Electromagnetic interference (EMI) is caused, and the sensitivity of receiving partial frequency band is low. Where i represents current, v represents power supply, and t represents time.
In order to reduce the electromagnetic interference of the DC voltage converter, the hardware cost of the DC-DC converter is increased or the power efficiency is reduced, which cannot be considered at the same time.
Disclosure of Invention
The invention aims to solve the problems that: the method reduces electromagnetic interference and considers both the hardware cost and the power efficiency of the DC-DC converter.
To solve the above problem, an embodiment of the present invention provides a method for controlling a DC-DC converter, including:
acquiring a current communication frequency band in a communication mode;
judging whether the current communication frequency band is a preset high-risk communication frequency band or not;
and when the current communication frequency band is a preset high-risk communication frequency band, adjusting a clock signal related parameter value of the DC-DC converter so as to reduce the electromagnetic interference of the current communication frequency band.
Optionally, the determining whether the current communication frequency band is a preset high-risk communication frequency band includes:
matching the current communication frequency band with a preset high-risk communication frequency band; the preset high-risk communication frequency band comprises more than one high-risk communication frequency band;
and when the current communication frequency band is matched with a preset high-risk communication frequency band, judging that the current communication frequency band is the preset high-risk communication frequency band.
Optionally, the clock signal related parameter value of the dc voltage converter is at least one of:
a slope value of a clock signal of the DC-DC converter;
a frequency value of a clock signal of the DC-DC converter.
Optionally, the adjusting the clock signal related parameter value of the DC-DC converter includes:
acquiring a clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band from preset mapping information of the clock signal related parameter value and the communication frequency band; the clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band is smaller than the corresponding parameter value of the clock signal of the DC-DC converter before adjustment;
modifying the current clock signal related parameter value of the DC-DC converter into the acquired corresponding parameter value.
Optionally, the method further comprises:
and in a non-communication mode, keeping the relevant parameter value of the clock signal of the DC-DC converter unchanged.
The present invention also provides a control apparatus for a DC-DC converter, the apparatus comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is suitable for acquiring a current communication frequency band in a communication mode;
the judging unit is suitable for judging whether the current communication frequency band is a preset high-risk communication frequency band or not;
and the adjusting unit is suitable for adjusting the clock signal related parameter value of the DC-DC converter when the current communication frequency band is a preset high-risk communication frequency band so as to reduce the electromagnetic interference of the current communication frequency band.
Optionally, the determining unit includes:
the matching subunit is suitable for matching the current communication frequency band with a preset high-risk communication frequency band; the preset high-risk communication frequency band comprises more than one high-risk communication frequency band;
and the judging subunit is suitable for judging that the current communication frequency band is a preset high-risk communication frequency band when the current communication frequency band is matched with the preset high-risk communication frequency band.
Optionally, the clock signal related parameter value of the dc voltage converter is at least one of:
a slope value of a clock signal of the DC-DC converter;
a frequency value of a clock signal of the DC-DC converter.
Optionally, the adjusting unit includes:
the acquisition subunit is suitable for acquiring a clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band from mapping information of a preset clock signal related parameter value and the communication frequency band; the clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band is smaller than the corresponding parameter value of the clock signal of the DC-DC converter before adjustment;
a control subunit adapted to modify the current clock signal related parameter value of the DC-DC converter to the acquired corresponding parameter value.
The embodiment of the invention also provides an application processor, which comprises the control device of the DC-DC converter.
The embodiment of the invention also provides a control system of the DC-DC converter, which comprises the application processor and the DC-DC converter.
Optionally, the system further comprises: a communication processor for sending the current communication band to the application processor.
Optionally, the system further comprises: and the protocol stack module is used for sending the current communication frequency band to the communication processor.
Optionally, the system further comprises: and the memory is used for storing the mapping relation information between different communication frequency bands and the related parameter values of the clock signals of the DC-DC converter.
Optionally, the DC-DC converter is integrated in a power management integrated circuit.
The embodiment of the invention also provides a terminal, which comprises the control system of the DC-DC converter.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the above method.
The embodiment of the invention also provides a terminal, which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes the steps of the method when running the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:
by applying the scheme of the invention, when the current communication frequency band is the preset high-risk communication frequency band, the clock signal related parameter value of the direct current voltage converter is adjusted to reduce the electromagnetic interference of the current communication frequency band. Due to the scheme of the invention, hardware change of the direct current voltage converter is not needed, so that the hardware cost can be reduced. In addition, the scheme of the invention is only suitable for the communication mode and is not suitable for other scenes except the communication mode, so that the power supply efficiency in other scenes except the communication mode can not be influenced, and the hardware cost and the power supply efficiency can be considered while the electromagnetic interference is reduced.
Drawings
Fig. 1 is a schematic diagram of a control system of a DC-DC converter in an embodiment of the invention;
fig. 2 is a flowchart of a method for controlling a DC-DC converter according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device of a DC-DC converter according to an embodiment of the present invention.
Detailed Description
At present, in order to reduce the electromagnetic interference of the DC-DC converter, the following two schemes are generally adopted:
the first scheme is as follows: optimizing a hardware circuit, and filtering generated noise by using an EMI filter;
scheme II: the spectrum peak value of the interference signal is reduced by using a spread spectrum clock technology.
For solution one, the EMI filter increases the cost of the dc voltage converter.
For the second scheme, although hardware of the dc voltage converter is not changed, all energy cannot be concentrated on the optimal frequency during spreading, which results in greatly reduced power efficiency. The power supply efficiency refers to the ratio of the output power to the input power of the DC-DC converter.
Therefore, the scheme for reducing the electromagnetic interference of the direct-current voltage converter in the prior art is difficult to realize hardware cost and power supply efficiency.
In view of the above problem, an embodiment of the present invention provides a method for controlling a DC-DC converter, where when a current communication frequency band is a preset high-risk communication frequency band, electromagnetic interference of the current communication frequency band is reduced by adjusting a clock signal related parameter value of the DC-DC converter. According to the scheme of the invention, hardware change of the direct current voltage converter is not needed, and the direct current voltage converter is only suitable for a communication mode, so that the electromagnetic interference is reduced, and simultaneously the hardware cost and the power supply efficiency are considered.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a schematic structural diagram of a terminal. Referring to fig. 1, the terminal includes an Application Processor (AP)11 and a Communication Processor (CP) 12. The application processor 11 and the communication processor 12 communicate through a certain channel. Wherein, the application processor 11 is used to process non-communication tasks, such as playing music, managing contacts, etc., and the communication processor 12 is mainly used to process communication-related tasks, mainly related to wireless networks, although the application processor 11 also participates in the process.
For example, when the terminal receives an incoming call, the communication processor 12 first senses the incoming call, the communication processor 12 performs preprocessing and then notifies the application processor 11, the application processor 11 performs some processing on the incoming call and notifies the user in a voice or other manner, and the user connects the call and establishes the call.
Referring to fig. 1, the terminal further includes a memory 13. The Memory 13 may be a Non-Volatile Random Access Memory (NVRAM). The memory 13 is connected to the communication processor 12. The communication processor 12 may read data from the memory 13. The terminal may further include a Protocol Stack (PS) module 14, which is connected to the communication processor 12 to implement communication meeting the requirements of the corresponding Protocol.
Referring to fig. 1, the terminal further includes a Power Management Integrated Circuit (PMIC)15 for performing conversion, distribution, detection and other Power Management of Power. A DC-DC converter is typically provided in the power management integrated circuit 15. The DC-DC converter serves as a switching power supply and outputs the existing direct voltage by performing charging and discharging activities on passive components (inductors or capacitors) during operation. The application processor 11 controls the DC-DC converter through an Applicant Data Interface (ADI).
In the embodiment of the invention, the working modes of the terminal can be divided into a communication mode and a non-communication mode. The communication mode refers to a mode in which the terminal performs information transmission, such as making a call or sending a short message. The non-communication mode refers to a mode in which the terminal does not perform information transmission.
Fig. 2 is a control method of a DC-DC converter according to an embodiment of the present invention. The method shown in fig. 2 is described in detail below in conjunction with fig. 1. Referring to fig. 2, the method may include the steps of:
and step 21, acquiring the current communication frequency band in the communication mode.
In a specific implementation, referring to fig. 1, in the communication mode of the terminal, the PS module 14 detects a current operating frequency band of the terminal, and reports the current operating frequency band of the terminal to the communication processor 12. In the embodiment of the present invention, the communication processor 12 further transmits the current operating frequency band to the application processor 11, and the application processor 11 controls relevant parameters of the DC-DC converter based on the current operating frequency band.
In other embodiments, the application processor 11 may also obtain the current operating frequency band of the terminal based on other methods, which is not limited herein.
And step 22, judging whether the current communication frequency band is a preset high-risk communication frequency band.
In an embodiment, in order to improve the control efficiency, the terminal may measure the EMI values corresponding to different communication bands in advance, and store the communication band greater than the preset interference threshold as the high-risk communication band in the application processor 11. At this time, the application processor 11 obtains the current communication frequency band, may directly match the current communication frequency band with the preset high-risk communication frequency band, and when the current communication frequency band is one of the preset high-risk communication frequency bands, that is, when the current communication frequency band matches with the preset high-risk communication frequency band, determines that the current communication frequency band is the preset high-risk communication frequency band, otherwise, determines that the current communication frequency band is not the preset high-risk communication frequency band.
In other embodiments, after the current communication frequency band is obtained, an EMI value of the current communication frequency band may be estimated, the estimated EMI value is compared with a preset interference threshold, when the estimated EMI value is greater than the preset interference threshold, it is determined that the current communication frequency band is the preset high-risk communication frequency band, otherwise, it is determined that the current communication frequency band is not the preset high-risk communication frequency band.
And when the current communication frequency band is not the preset high-risk communication frequency band, the related parameter value of the clock signal of the DC-DC converter is not adjusted, namely the related parameter value of the current clock signal of the DC-DC converter is kept unchanged.
And step 23, when the current communication frequency band is a preset high-risk communication frequency band, adjusting a clock signal related parameter value of the DC-DC converter so as to reduce electromagnetic interference of the current communication frequency band.
In a specific implementation, the parameter value related to the clock signal of the DC-DC converter may be a slope value of the clock signal of the DC-DC converter, or may also be a frequency value of the clock signal of the DC-DC converter, and may also include the slope value and the frequency value of the clock signal of the DC-DC converter.
In other words, when the current communication frequency band is the preset high-risk communication frequency band, only the slope value of the clock signal of the DC-DC converter may be adjusted, only the frequency value of the clock signal of the DC-DC converter may be adjusted, and the slope value and the frequency value of the clock signal of the DC-DC converter may be adjusted at the same time. And meanwhile, when the slope value and the frequency value of the clock signal of the DC-DC converter are adjusted, the control efficiency is higher, and the effect of reducing EMI interference is more obvious.
The slope value of the clock signal, i.e. the di/dt or dv/dt magnitude, i.e. the magnitude of the current or voltage variation with time. The frequency value of the clock signal refers to the fundamental frequency value of the clock signal. The slope value and the frequency value of the clock signal are reduced, and the high frequency can be effectively reduced.
In particular implementations, the value of the clock signal related parameter of the DC-DC converter may be adjusted in a variety of ways, and is not limited herein.
In an embodiment of the present invention, mapping information between clock signal related parameter values and communication frequency bands may be preset, where the mapping information is clock signal related parameter values corresponding to different communication frequency bands when the terminal is in a communication mode. The set clock signal dependent parameter value should be smaller than the corresponding parameter value of the DC-DC converter clock signal before adjustment.
Specifically, if the interference risk of the communication band B1 is the highest, the slope value X1 and the frequency value Y1 of the clock signal that generate the lowest noise correspond. Communication band B2 has a lower risk of interference, corresponding to a clock signal slope value X2 and frequency value Y2 that produce higher noise.
For example, the slope value of the clock signal of the DC-DC converter before the adjustment is 1/2, and at this time, the slope value of the clock signal set in the mapping information may be 1/4. The frequency value of the clock signal of the DC-DC converter before being adjusted is 100KHZ, and at this time, the frequency value of the clock signal set in the mapping information may be 50 KHZ.
When adjusting the clock signal related parameter value of the DC-DC converter, the clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band may be obtained from the mapping information of the preset clock signal related parameter value and the communication frequency band, and then the DC-DC converter is controlled to modify the current clock signal related parameter value into the obtained corresponding parameter value.
In the implementation, referring to fig. 1, the preset clock signal related parameter value and the mapping information of the communication frequency band may be stored in the memory 13. When the current communication frequency band is the preset high-risk communication frequency band, the application processor 11 may read, through the communication processor 12, the clock signal related parameter value corresponding to the current communication frequency band from the memory 13, and modify, through the ADI interface, the current clock signal related parameter value of the DC-DC converter to the acquired corresponding parameter value.
For example, when the terminal operates in the B1 frequency band in the communication mode, the PS module 14 reports the current operating frequency band B1 to the communication processor 12, and the communication processor 12 sends the clock signal slope value X1 and the clock signal slope value Y1 corresponding to the B1 frequency band stored in the NVRAM 13 to the application processor 11. The application processor 11 controls the corresponding DC-DC converter in the power management integrated circuit 15 through the ADI interface to modify the slope value and the frequency value of the current clock signal to X1 and Y1, respectively. Similarly, in other frequency bands, such as the B2 frequency band, the DC-DC converter will automatically modify the slope and frequency values of the current clock signal to X2 and Y2, respectively.
In other embodiments, if the current communication frequency band is a preset high-risk communication frequency band, the terminal may also directly decrease the clock signal related parameter value without presetting mapping information between the clock signal related parameter value and the communication frequency band. The specific magnitude of the decrease may be predetermined by a protocol or other means.
In an embodiment of the invention, when the terminal is in the non-communication mode, the value of the clock signal related parameter of the DC-DC converter is kept unchanged, i.e. the current clock signal related parameter of the DC-DC converter is not adjusted. Under the non-communication mode, the terminal has lower noise sensitivity, and the DC-DC converter can be ensured to have higher power supply efficiency according to the larger clock signal related parameter value configured by the terminal.
Of course, in other embodiments, when the terminal is in the non-communication mode, if the current clock signal related parameter value of the DC-DC converter is not the optimal value, the clock signal related parameter value of the DC-DC converter may also be increased, so that the DC-DC converter has the optimal power efficiency.
As can be seen from the above, in the control method of the DC-DC converter in the embodiment of the present invention, the clock signal related parameter of the DC-DC converter in the communication mode is adjusted, and the clock signal related parameter of the DC-DC converter in the non-communication mode is kept unchanged, so that the power efficiency of the DC-DC converter in the non-communication mode is not affected, the power efficiency of the DC-DC converter is ensured, and the hardware cost is reduced.
In order to make those skilled in the art better understand and realize the present invention, the following detailed description describes corresponding devices, systems, terminals and computer readable storage media of the above-mentioned methods.
Referring to fig. 3, an embodiment of the present invention provides a control apparatus 30 for a DC-DC converter, where the apparatus 30 may include: an acquisition unit 31, a judgment unit 32, and an adjustment unit 33. Wherein:
the acquiring unit 31 is adapted to acquire a current communication frequency band in a communication mode;
the judging unit 32 is adapted to judge whether the current communication frequency band is a preset high-risk communication frequency band;
the adjusting unit 33 is adapted to adjust a clock signal related parameter value of the DC-DC converter when the current communication frequency band is a preset high-risk communication frequency band, so as to reduce electromagnetic interference of the current communication frequency band.
In an embodiment of the present invention, the determining unit 32 may include: an matching subunit 321 and a judging subunit 322. Wherein:
the matching subunit 321 is adapted to match the current communication frequency band with a preset high-risk communication frequency band; the preset high-risk communication frequency band comprises more than one high-risk communication frequency band;
the determining subunit 322 is adapted to determine that the current communication frequency band is a preset high-risk communication frequency band when the current communication frequency band matches a preset high-risk communication frequency band.
In an embodiment of the invention, the value of the clock signal related parameter of the dc-dc converter is at least one of:
a slope value of a clock signal of the DC-DC converter;
a frequency value of a clock signal of the DC-DC converter.
In an embodiment of the present invention, the adjusting unit 33 may include: an acquisition subunit 331 and a control subunit 332. Wherein:
the obtaining subunit 331 is adapted to obtain, from mapping information of a preset clock signal related parameter value and a communication frequency band, a clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band; the clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band is smaller than the corresponding parameter value of the clock signal of the DC-DC converter before adjustment;
the control subunit 332 is adapted to modify the current clock signal related parameter value of the DC-DC converter to the obtained corresponding parameter value.
In a specific implementation, the control device 30 (virtual device) of the DC-DC converter may be, for example: a chip, or a chip module, etc.
An embodiment of the present invention further provides an application processor, where the application processor includes the control device 30 of the DC-DC converter.
Referring to fig. 1, an embodiment of the present invention further provides a control system 1 of a DC-DC converter, where the system 1 includes: an Application Processor (AP)11, and a DC-DC converter. The DC-DC converter is integrated in a Power Management Integrated Circuit (PMIC) 15.
In a specific implementation, the system 1 further comprises: a Communication Processor (CP)12 for transmitting the current communication band to the application processor 11.
In a specific implementation, the system 1 further comprises: a Protocol Stack (PS) module 14, configured to send the current communication frequency band to the communication processor 12.
In a specific implementation, the system 1 further comprises: a memory 13. The memory 13 is NVRAM. The memory 13 is used for storing mapping relationship information between different communication frequency bands and clock signal related parameter values of the DC-DC converter.
The embodiment of the invention also provides a terminal, which is characterized by comprising the control system 1 of the DC-DC converter.
The embodiment of the present invention further provides a computer-readable storage medium, where computer instructions are stored, and when the computer instructions are executed, the steps of any one of the control methods of the DC-DC converter in the foregoing embodiments are executed, which is not described in detail again.
In particular implementations, the computer-readable storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
The embodiment of the present invention further provides a terminal, where the terminal may include a memory and a processor, where the memory stores a computer instruction capable of being executed on the processor, and when the processor executes the computer instruction, the step of executing any one of the control methods of the DC-DC converter in the foregoing embodiments is executed, and details are not repeated.
Each module/unit included in each apparatus and product described in the above embodiments may be a software module/unit, or may also be a hardware module/unit, or may also be a part of a software module/unit and a part of a hardware module/unit. For example, for each device or product applied to or integrated into a chip, each module/unit included in the device or product may be implemented by hardware such as a circuit, or at least a part of the module/unit may be implemented by a software program running on a processor integrated within the chip, and the rest (if any) part of the module/unit may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (18)
1. A method of controlling a DC-DC converter, comprising:
acquiring a current communication frequency band in a communication mode;
judging whether the current communication frequency band is a preset high-risk communication frequency band or not;
and when the current communication frequency band is a preset high-risk communication frequency band, adjusting a clock signal related parameter value of the DC-DC converter so as to reduce the electromagnetic interference of the current communication frequency band.
2. The method of controlling a DC-DC converter according to claim 1, wherein the determining whether the current communication band is a preset high-risk communication band comprises:
matching the current communication frequency band with a preset high-risk communication frequency band; the preset high-risk communication frequency band comprises more than one high-risk communication frequency band;
and when the current communication frequency band is matched with a preset high-risk communication frequency band, judging that the current communication frequency band is the preset high-risk communication frequency band.
3. The method of controlling a DC-DC converter according to claim 1, wherein the value of the clock signal related parameter of the DC-DC voltage converter is at least one of:
a slope value of a clock signal of the DC-DC converter;
a frequency value of a clock signal of the DC-DC converter.
4. The method of claim 3, wherein said adjusting the clock signal dependent parameter value of the DC-DC converter comprises:
acquiring a clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band from preset mapping information of the clock signal related parameter value and the communication frequency band; the clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band is smaller than the corresponding parameter value of the clock signal of the DC-DC converter before adjustment;
modifying the current clock signal related parameter value of the DC-DC converter into the acquired corresponding parameter value.
5. The method of controlling a DC-DC converter according to claim 1, further comprising:
and in a non-communication mode, keeping the relevant parameter value of the clock signal of the DC-DC converter unchanged.
6. A control device for a DC-DC converter, comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is suitable for acquiring a current communication frequency band in a communication mode;
the judging unit is suitable for judging whether the current communication frequency band is a preset high-risk communication frequency band or not;
and the adjusting unit is suitable for adjusting the clock signal related parameter value of the DC-DC converter when the current communication frequency band is a preset high-risk communication frequency band so as to reduce the electromagnetic interference of the current communication frequency band.
7. The control device of a DC-DC converter according to claim 6, wherein the judging unit includes:
the matching subunit is suitable for matching the current communication frequency band with a preset high-risk communication frequency band; the preset high-risk communication frequency band comprises more than one high-risk communication frequency band;
and the judging subunit is suitable for judging that the current communication frequency band is a preset high-risk communication frequency band when the current communication frequency band is matched with the preset high-risk communication frequency band.
8. A control apparatus for a DC-DC converter according to claim 6, wherein the value of the clock signal related parameter of the DC-DC converter is at least one of:
a slope value of a clock signal of the DC-DC converter;
a frequency value of a clock signal of the DC-DC converter.
9. The control device of a DC-DC converter according to claim 6, wherein the adjusting unit includes:
the acquisition subunit is suitable for acquiring a clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band from mapping information of a preset clock signal related parameter value and the communication frequency band; the clock signal related parameter value of the DC-DC converter corresponding to the current communication frequency band is smaller than the corresponding parameter value of the clock signal of the DC-DC converter before adjustment;
a control subunit adapted to modify the current clock signal related parameter value of the DC-DC converter to the acquired corresponding parameter value.
10. An application processor characterized by comprising the control device of the DC-DC converter of any one of claims 6 to 9.
11. A control system for a DC-DC converter, comprising the application processor of claim 10, and a DC-DC converter.
12. The control system of a DC-DC converter according to claim 11, further comprising:
a communication processor for sending the current communication band to the application processor.
13. The control system of a DC-DC converter according to claim 12, further comprising: and the protocol stack module is used for sending the current communication frequency band to the communication processor.
14. The control system of a DC-DC converter according to claim 11, further comprising:
and the memory is used for storing the mapping relation information between different communication frequency bands and the related parameter values of the clock signals of the DC-DC converter.
15. The control system of a DC-DC converter of claim 11, wherein the DC-DC converter is integrated in a power management integrated circuit.
16. A terminal, characterized by comprising a control system of a DC-DC converter according to claims 11 to 15.
17. A computer-readable storage medium, on which a computer program is stored, which computer program is executable by a processor for carrying out the steps of the method according to any one of claims 1 to 5.
18. A terminal comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the method of any of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110113985.9A CN112787500B (en) | 2021-01-27 | 2021-01-27 | Control method, device, system, processor, terminal and medium of DC-DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110113985.9A CN112787500B (en) | 2021-01-27 | 2021-01-27 | Control method, device, system, processor, terminal and medium of DC-DC converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112787500A true CN112787500A (en) | 2021-05-11 |
| CN112787500B CN112787500B (en) | 2022-11-04 |
Family
ID=75759213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110113985.9A Active CN112787500B (en) | 2021-01-27 | 2021-01-27 | Control method, device, system, processor, terminal and medium of DC-DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112787500B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113490101A (en) * | 2021-07-15 | 2021-10-08 | 恒玄科技(北京)有限公司 | Wireless earphone and communication method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453318A (en) * | 2007-12-04 | 2009-06-10 | 富士通株式会社 | Clock signal transmission method in radio communication apparatus, and radio communication apparatus |
| CN102386937A (en) * | 2011-10-25 | 2012-03-21 | 青岛海信移动通信技术股份有限公司 | Wireless communication system and method for improving sensitivity of wireless communication system |
| CN106027084A (en) * | 2016-05-18 | 2016-10-12 | 昆山龙腾光电有限公司 | Method and device for reducing noises |
| CN106063389A (en) * | 2014-03-18 | 2016-10-26 | 苹果公司 | Shielding structures for system-in-package assemblies in portable electronic devices |
| US20160364359A1 (en) * | 2015-06-11 | 2016-12-15 | Qualcomm Incorporated | Dynamic interface management for interference mitigation |
| CN107147453A (en) * | 2017-05-31 | 2017-09-08 | 广东欧珀移动通信有限公司 | Processing method, device, storage medium and the terminal of Radio frequency interference |
| CN109462397A (en) * | 2018-11-08 | 2019-03-12 | 苏州裕太车通电子科技有限公司 | A kind of reduction electromagnetic interference method |
| CN110601716A (en) * | 2019-09-18 | 2019-12-20 | 闻泰通讯股份有限公司 | Anti-interference communication method, device, terminal and storage medium |
| CN112150962A (en) * | 2020-10-23 | 2020-12-29 | 维沃移动通信有限公司 | Chip clock frequency adjusting method and device, chip and electronic equipment |
-
2021
- 2021-01-27 CN CN202110113985.9A patent/CN112787500B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453318A (en) * | 2007-12-04 | 2009-06-10 | 富士通株式会社 | Clock signal transmission method in radio communication apparatus, and radio communication apparatus |
| CN102386937A (en) * | 2011-10-25 | 2012-03-21 | 青岛海信移动通信技术股份有限公司 | Wireless communication system and method for improving sensitivity of wireless communication system |
| CN106063389A (en) * | 2014-03-18 | 2016-10-26 | 苹果公司 | Shielding structures for system-in-package assemblies in portable electronic devices |
| US20160364359A1 (en) * | 2015-06-11 | 2016-12-15 | Qualcomm Incorporated | Dynamic interface management for interference mitigation |
| CN106027084A (en) * | 2016-05-18 | 2016-10-12 | 昆山龙腾光电有限公司 | Method and device for reducing noises |
| CN107147453A (en) * | 2017-05-31 | 2017-09-08 | 广东欧珀移动通信有限公司 | Processing method, device, storage medium and the terminal of Radio frequency interference |
| CN109462397A (en) * | 2018-11-08 | 2019-03-12 | 苏州裕太车通电子科技有限公司 | A kind of reduction electromagnetic interference method |
| CN110601716A (en) * | 2019-09-18 | 2019-12-20 | 闻泰通讯股份有限公司 | Anti-interference communication method, device, terminal and storage medium |
| CN112150962A (en) * | 2020-10-23 | 2020-12-29 | 维沃移动通信有限公司 | Chip clock frequency adjusting method and device, chip and electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113490101A (en) * | 2021-07-15 | 2021-10-08 | 恒玄科技(北京)有限公司 | Wireless earphone and communication method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112787500B (en) | 2022-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10749371B2 (en) | Charging device and method, power adapter and terminal | |
| US10644530B2 (en) | Charging system, charging method, and device | |
| US10224811B2 (en) | Methods and apparatus to reduce electromagnetic interference in a power converter using phase hopping in conjunction with pulse width modulation | |
| US10291043B2 (en) | Charging system, charging method, and power adapter | |
| US20190260218A1 (en) | Charging system, charging method, and power adapter | |
| CN102904443A (en) | Dc-dc converter and voltage conversion method thereof | |
| EP3276811B1 (en) | Charging system, charging method, and power adapter | |
| US11126301B2 (en) | Power adapter control method and control apparatus | |
| CN112787500B (en) | Control method, device, system, processor, terminal and medium of DC-DC converter | |
| US20230006563A1 (en) | Power supply device and charging control method | |
| CN102136846B (en) | Power management device and method | |
| JP2006524456A (en) | Power saving in the transmitter | |
| CN114527819A (en) | Base band chip, voltage adjusting method and terminal equipment | |
| US10044257B1 (en) | Methods and apparatus to provide adaptive electromagnetic interference control in a power converter | |
| CN103731177A (en) | Pre-processing unit for a signal processor | |
| EP3984122A1 (en) | Voltage transient suppression in a switched mode power supply | |
| JP2006074753A (en) | Power source switching device of mobile communication terminal | |
| CN112953186A (en) | Ripple compensation circuit and method, switching power supply circuit and conduction time control method | |
| JP2007508734A (en) | Power saving of transmitter | |
| EP3567699B1 (en) | Charging device and method, power adapter and terminal | |
| CN114531189A (en) | Energy-saving method of mobile phone signal amplifier and mobile phone signal amplifier | |
| CN107834639A (en) | Method of supplying power to, electric supply installation, electronic cigarette and intelligent power | |
| CN106951128B (en) | Method for adjusting driving signal, computer-readable storage medium and mobile terminal | |
| CN112181639A (en) | Dynamic frequency and voltage adjusting method based on Loongson platform | |
| CN112054686A (en) | Control method based on converter circuit and related device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |