CN111030604B

CN111030604B - Method and device for controlling DCDC converter, storage medium and electronic equipment

Info

Publication number: CN111030604B
Application number: CN201911311189.5A
Authority: CN
Inventors: 谷华宝; 许奇奇; 杨亚西
Original assignee: Nanjing Dayu Semiconductor Co ltd
Current assignee: Nanjing Dayu Semiconductor Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2023-03-10
Anticipated expiration: 2039-12-18
Also published as: CN111030604A

Abstract

The invention relates to a control method, a control device, a storage medium and electronic equipment of a DCDC converter, and relates to the technical field of electronic control. The method comprises the following steps: the method comprises the steps of obtaining the transmitting power of a terminal and the power supply voltage of a power supply, determining the target voltage required by a power amplifier according to the transmitting power and the preset first corresponding relation, determining the target load according to the power supply voltage, the target voltage and the preset second corresponding relation, and configuring a DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier. According to the method and the device, the target voltage is determined according to the transmitting power, and then the load configuration of the DCDC converter is determined according to the target voltage and the power supply voltage, so that the conversion efficiency of the DCDC converter can be improved on the premise of meeting the transmitting power.

Description

Method and device for controlling DCDC converter, storage medium and electronic equipment

Technical Field

The present disclosure relates to the field of electronic control technologies, and in particular, to a method and an apparatus for controlling a DCDC converter, a storage medium, and an electronic device.

Background

With the continuous development of mobile Communication technology, people and Things, and everything interconnected networks between Things and Things begin to be continuously integrated into people's lives, especially in recent years, the continuous development of technologies such as NB-IoT (english: narrow Band-Internet of Things, chinese: narrowband Internet of Things), EMTC (english: enhanced Machine-Type Communication, chinese: enhanced Internet of Things), MMTC (chinese: massive Internet of Things) and the like makes Internet of Things begin to be widely applied. The internet of things has a high requirement on the endurance of the terminal, so that the power consumption of the terminal needs to be reduced as much as possible, and the endurance time needs to be prolonged.

The power consumption of the terminal equipment is mainly divided into a receiving part and a transmitting part, wherein the power consumption of the transmitting part is the largest, and the power consumption of the transmitting part is mainly determined by a power amplifier. The working voltage of the power amplifier is obtained by converting the power supply voltage of an external power supply through a DCDC (Direct Current to Direct Current, chinese) converter. Generally, the load of the DCDC converter is fixed, so when the power supply voltage is converted into the working voltage, the conversion efficiency of the DCDC converter may be low, and under the same transmission power condition, the low conversion efficiency of the DCDC converter may cause the power consumption of the terminal to be large, and the endurance time is shortened.

Disclosure of Invention

The present disclosure aims to provide a method and an apparatus for controlling a DCDC converter, a storage medium, and an electronic device, so as to solve the problems of high power consumption and short endurance time of a terminal due to low conversion efficiency of the DCDC converter in the prior art.

In order to achieve the above object, according to a first aspect of the embodiments of the present disclosure, there is provided a control method of a DCDC converter, applied to a terminal, the terminal including a power amplifier, a power supply and the DCDC converter, the power amplifier being connected to an output terminal of the DCDC converter, the power supply being connected to an input terminal of the DCDC converter;

the method comprises the following steps:

acquiring the transmitting power of the terminal and the power supply voltage of the power supply;

determining a target voltage according to the transmitting power and a preset first corresponding relation;

determining a target load required by the power amplifier according to the power supply voltage, the target voltage and a preset second corresponding relation;

and configuring the DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier.

Optionally, the terminal further includes a baseband processor, the baseband processor is connected to the power amplifier, and the obtaining the transmission power of the terminal and the power supply voltage of the power supply includes:

determining the transmitting power according to a control instruction received by the baseband processor;

detecting the supply voltage of the power supply.

Optionally, the determining a target voltage required by the power amplifier according to the transmission power and a preset first corresponding relationship includes:

determining a target gain of the power amplifier according to the transmitting power;

determining the lowest voltage of the power amplifier when the power amplifier amplifies the signal with the target gain according to the first corresponding relation;

determining the lowest voltage as the target voltage.

Optionally, the determining a target load according to the power supply voltage, the target voltage, and a preset second corresponding relationship includes:

determining the working mode of the DCDC converter according to the power supply voltage and the target voltage;

determining the highest conversion efficiency of the DCDC converter for converting the power supply voltage into the target voltage in the working mode according to the second corresponding relation;

and determining the target load according to the highest conversion efficiency.

Optionally, after determining the target voltage required by the power amplifier according to the transmission power and a preset first corresponding relationship, the method further includes:

determining a target current range according to the transmitting power and the target voltage;

the determining the highest conversion efficiency of the DCDC converter for converting the power supply voltage into the target voltage in the operating mode according to the second corresponding relationship includes:

determining the output current of the DCDC converter for converting the power supply voltage into the target voltage in the working mode according to the second corresponding relation;

determining the highest conversion efficiency of the DCDC converter on a condition that the output current belongs to the target current range.

According to a second aspect of the embodiments of the present disclosure, there is provided a control apparatus for a DCDC converter, the control apparatus being applied to a terminal, the terminal including a power amplifier, a power supply and a DCDC converter, the power amplifier being connected to an output terminal of the DCDC converter, the power supply being connected to an input terminal of the DCDC converter;

the device comprises:

the acquisition module is used for acquiring the transmitting power of the terminal and the power supply voltage of the power supply;

the voltage determining module is used for determining a target voltage required by the power amplifier according to the transmitting power and a preset first corresponding relation;

the load determining module is used for determining a target load according to the power supply voltage, the target voltage and a preset second corresponding relation;

and the configuration module is used for configuring the DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier.

Optionally, the terminal further includes a baseband processor, the baseband processor is connected to the power amplifier, and the obtaining module includes:

the obtaining sub-module is used for determining the transmitting power according to the control instruction received by the baseband processor;

a detection submodule for detecting the supply voltage of the power supply.

Optionally, the voltage determination module is configured to:

determining the lowest voltage as the target voltage.

Optionally, the load determining module includes:

the mode determination submodule is used for determining the working mode of the DCDC converter according to the power supply voltage and the target voltage;

the efficiency determining submodule is used for determining the highest conversion efficiency of the DCDC converter for converting the power supply voltage into the target voltage in the working mode according to the second corresponding relation;

and the load determining submodule is used for determining the target load according to the highest conversion efficiency.

Optionally, the apparatus further comprises:

a current determining module, configured to determine a target current range according to the transmission power and a target voltage after determining the target voltage required by the power amplifier according to the transmission power and a preset first corresponding relationship;

the efficiency determination submodule is configured to:

According to a third aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of embodiments of the present disclosure.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of the first aspect of the embodiments of the present disclosure.

Through the technical scheme, the terminal comprises the power amplifier, the power supply and the DCDC converter, wherein the power amplifier is connected with the output end of the DCDC converter, and the power supply is connected with the input end of the DCDC converter. The method comprises the steps of firstly obtaining the transmitting power of a current terminal and the power supply voltage of a power supply, then determining the target voltage required by the power amplifier to reach the transmitting power according to a preset first corresponding relation, then determining the target load corresponding to the power supply voltage and the target voltage according to a preset second corresponding relation, and finally configuring a DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier. According to the method and the device, the target voltage required by the power amplifier is determined according to the transmitting power, the load configuration of the DCDC converter is determined according to the target voltage and the power voltage, and the conversion efficiency of the DCDC converter can be improved on the premise that the transmitting power is met, so that the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a block diagram illustrating a terminal in accordance with an exemplary embodiment;

FIG. 2 is a flow chart illustrating a method of controlling a DCDC converter in accordance with an exemplary embodiment;

FIG. 3 is a flow chart illustrating another method of controlling a DCDC converter in accordance with an exemplary embodiment;

FIG. 4 is a flow chart illustrating another method of controlling a DCDC converter in accordance with an exemplary embodiment;

FIG. 5 is a flow chart illustrating another method of controlling a DCDC converter in accordance with an exemplary embodiment;

fig. 6 is a flow chart illustrating another method of controlling a DCDC converter according to an exemplary embodiment;

fig. 7 is a block diagram illustrating a control apparatus of a DCDC converter according to an exemplary embodiment;

fig. 8 is a block diagram illustrating another control apparatus of a DCDC converter according to an exemplary embodiment;

fig. 9 is a block diagram illustrating another control apparatus of a DCDC converter according to an exemplary embodiment;

fig. 10 is a block diagram illustrating another control apparatus of a DCDC converter according to an exemplary embodiment;

FIG. 11 is a block diagram illustrating an electronic device in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Before introducing the method, the apparatus, the storage medium, and the electronic device for controlling a DCDC converter provided in the present disclosure, an application scenario related to various embodiments of the present disclosure will be first introduced. The terminal in the application scenario may be a mobile terminal such as a smart phone, a tablet computer, a smart television, a smart watch, a PDA (english: personal Digital Assistant), a portable computer, or an intelligent home device, for example: the floor sweeping robot comprises a floor sweeping robot, an air purifier, an air conditioner, a lighting lamp, a sound box, a robot and the like. The terminal can be accessed to any Internet of things such as NB-IOT, EMTC or MMTC, and can also be accessed to mobile Communication networks such as Wi-Fi (Wireless Fidelity, chinese), bluetooth, near Field Communication (NFC), 2G, 3G, 4G, 5G and the like. The present disclosure is not limited thereto.

Fig. 1 is a block diagram of a terminal according to an exemplary embodiment, and as shown in fig. 1, the terminal in this embodiment may include a Power Amplifier (PA), a Power supply, and a DCDC converter, where the Power amplifier is connected to an output terminal of the DCDC converter, and the Power supply is connected to an input terminal of the DCDC converter. The power supply voltage of the power supply (i.e., the input voltage of the DCDC converter) is converted by the DCDC converter to become a target voltage (i.e., the output voltage of the DCDC converter and the input voltage of the power amplifier), and the target voltage is input to the power amplifier by the DCDC converter, so that the power amplifier can amplify the signal.

Further, the terminal may further include: a baseband processor is also included. The baseband processor is connected with the power amplifier, and the baseband processor can also be connected with the DCDC converter. The baseband processor can receive the control instruction sent by the base station and control the whole terminal. The control instruction may include a transmission power indicating the operation of the terminal. Furthermore, the terminal can also comprise a radio frequency chip and an antenna, wherein the radio frequency chip is used for modulating the communication signal and sending the modulated signal to the power amplifier, the power amplifier amplifies the modulated signal, and finally the antenna transmits the amplified modulated signal according to the specified transmitting power.

Fig. 2 is a flowchart illustrating a method of controlling a DCDC converter according to an exemplary embodiment, where the method is applied to the terminal, and includes a power amplifier, a power supply and the DCDC converter, the power amplifier is connected to an output terminal of the DCDC converter, the power supply is connected to an input terminal of the DCDC converter, and the method includes the following steps:

step 101, acquiring the transmitting power of the terminal and the power supply voltage of the power supply.

And step 102, determining a target voltage required by the power amplifier according to the transmitting power and a preset first corresponding relation.

For example, the terminals operate in different scenarios, and the transmission power is different. The base station may send different control commands to the terminals to specify the transmit powers of the terminals. Therefore, the current transmission power of the terminal can be determined through the control instruction sent by the base station. At the same time, the current supply voltage of the power supply on the terminal can be detected. Accordingly, the gain of the power amplifier is different for different transmit powers. Therefore, the target gain required by the power amplifier to reach the transmission power can be determined, and the transmission power and the target gain are in one-to-one correspondence. And then determining a target voltage required by the power amplifier according to the first corresponding relation, wherein the target voltage is the minimum voltage required by the power amplifier on the premise of ensuring the transmitting power (namely, the power amplifier amplifies the signal by a target gain). The first corresponding relationship may be understood as a pre-established corresponding relationship between the transmission power and the target voltage, or a pre-established corresponding relationship between the target gain, the transmission power, and the target voltage, and may be obtained by a large number of experiments in a design stage of the terminal. The first correspondence may be stored in the terminal in the form of a relationship table, a relationship function, or a relationship model. Taking the first correspondence as a relation table, storing the correspondence between the transmission power and the target voltage as an example, each row in the relation table includes two rows: transmit power and target voltage. As shown in table 1:

TABLE 1

Target voltage (V)	Launch power (dBm)
		3.6	25
3.6	20
		3.6	15
3.6	10
		1.3	9
1.2	8
		1	-1
0.85	-10
		0.75	-20
0.68	-25
		0.63	-30
0.58	-35

And 103, determining a target load according to the power supply voltage, the target voltage and a preset second corresponding relation.

And step 104, configuring the DCDC converter according to the target load, so that the DCDC converter converts the power supply voltage into a target voltage to supply power to the power amplifier.

As an example, the target voltage is determined, i.e. it is determined that the DCDC converter needs to convert the supply voltage to the target voltage. Namely, the power supply voltage is used as the input of the DCDC converter, and the DCDC converter outputs the target voltage to supply power to the power amplifier. When the power supply voltage is converted into the target voltage, the output currents of the respective DCDC converters are different depending on the load configuration of the DCDC converters. The output current of the DCDC converter affects the conversion efficiency (i.e., output power/input power) of the DCDC converter, and the higher the conversion efficiency is, the smaller the power consumption of the terminal is, and the longer the endurance time is. The DCDC converter is provided with an adjustable load (such as an adjustable capacitor, an adjustable inductor, or an adjustable resistor), and by adjusting an impedance value of the adjustable load, an output current of the DCDC converter can be adjusted, and accordingly, a conversion efficiency of the DCDC converter can also be adjusted.

Therefore, the target load can be determined according to the power supply voltage, the target voltage and the preset second corresponding relation, and the target load is the target load corresponding to the highest conversion efficiency which can be achieved by the DCDC converter on the premise that the DCDC converter converts the power supply voltage into the target voltage. The second correspondence relationship may be understood as a correspondence relationship between a power supply voltage (i.e., an input voltage), a target voltage (i.e., an output voltage), and a target load, or a correspondence relationship between a power supply voltage, a target voltage, and a conversion efficiency, and a target load, which are established in advance. Can be measured by a large number of experiments in the design stage of the terminal. The second correspondence may be stored in the terminal in the form of a relationship table, a relationship function, or a relationship model. For example, the adjustable load of the DCDC converter is divided into three load steps, namely, a high load, a medium load, and a low load, when the DCDC converter converts the power voltage into the target voltage, the three load steps are configured to be respectively configured in a high load state, a medium load state, and a low load state, the input current and the output current of the DCDC converter are measured in advance, the conversion efficiencies corresponding to the high load, the medium load state, and the low load state are obtained through calculation, the load step with the highest conversion efficiency is used as the target load corresponding to the power voltage and the target voltage, and combinations of different power voltages and target voltages can be measured respectively, so as to obtain the second correspondence table.

After the target load is determined, the adjustable load of the DCDC converter is configured to be the target load, so that the DCDC converter can convert the power supply voltage with the highest conversion efficiency on the premise of ensuring that the power supply voltage is converted into the target voltage, power is supplied to the power amplifier, the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

In summary, the present disclosure is applied to a terminal including a power amplifier, a power supply and a DCDC converter, wherein the power amplifier is connected to an output terminal of the DCDC converter, and the power supply is connected to an input terminal of the DCDC converter. The method comprises the steps of firstly obtaining the transmitting power of a current terminal and the power supply voltage of a power supply, then determining the target voltage required by the power amplifier to reach the transmitting power according to a preset first corresponding relation, then determining the target load corresponding to the power supply voltage and the target voltage according to a preset second corresponding relation, and finally configuring a DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power for the power amplifier. According to the method and the device, the target voltage required by the power amplifier is determined according to the transmitting power, and then the load configuration of the DCDC converter is determined according to the target voltage and the power supply voltage, so that the conversion efficiency of the DCDC converter can be improved on the premise of meeting the transmitting power, the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

Fig. 3 is a flowchart illustrating another control method of a DCDC converter according to an exemplary embodiment, where the terminal further includes a baseband processor, and the baseband processor is connected to the power amplifier, as shown in fig. 3, and step 101 may include:

step 1011, determining the transmission power according to the control instruction received by the baseband processor.

At step 1012, a supply voltage of the power supply is sensed.

For example, the baseband processor can receive a control instruction sent by the base station, where the control instruction may include a transmission power indicating the operation of the terminal, and thus the transmission power may be determined according to the control instruction, so that the terminal can transmit the amplified modulated signal according to the transmission power indicated by the base station. Further, the power of the power supply is limited, and as time goes on, the power of the power supply is reduced, and accordingly, the power supply voltage is also gradually reduced. Therefore, it is necessary to detect the current power supply voltage of the power supply in real time, so that the accuracy of the target load can be ensured.

Fig. 4 is a flowchart illustrating another control method of a DCDC converter according to an exemplary embodiment, and as shown in fig. 4, the step 102 may be implemented by:

step 1021, determining the target gain of the power amplifier according to the transmission power.

Step 1022, determining the lowest voltage of the power amplifier when the power amplifier amplifies the signal with the target gain according to the first corresponding relationship.

In step 1023, the lowest voltage is determined as the target voltage.

For example, for different transmission powers, gains of the power amplifiers are different, and according to a corresponding relationship between the transmission power and the gains, a target gain required for the power amplifier to achieve the transmission power may be determined, where the transmission power and the target gain are in one-to-one correspondence. The gain control word corresponding to the target gain may be sent to the power amplifier by the baseband processor to enable the power amplifier to achieve the transmit power. The corresponding relationship between the gain control word and the transmission power can be shown in table 2:

TABLE 2

Gain control word	Launch power (dBm)
		10111	25
01000	20
		00110	15
00010	10
		00011	9
00011	8

Accordingly, the lowest voltage required when the power amplifier amplifies a signal with the target gain may be determined according to the first correspondence, and finally the lowest voltage may be determined as the target voltage. The first correspondence may be a correspondence storing a target gain (i.e., a gain control word), a transmission power, and a target voltage, as shown in table 3:

TABLE 3

Launch power (dBm)	Gain control word	Target voltage (V)
			25	10111	3.6
20	01000	3.6
			15	00110	3.6
10	00010	3.6
			9	00011	1.3
8	00011	1.2

Fig. 5 is a flowchart illustrating another control method of a DCDC converter according to an exemplary embodiment, and as shown in fig. 5, the step 103 may be implemented by:

and step 1031, determining the working mode of the DCDC converter according to the power supply voltage and the target voltage.

And step 1032, determining the highest conversion efficiency of the DCDC converter for converting the power supply voltage into the target voltage in the working mode according to the second corresponding relation.

Step 1033, determine the target load based on the highest conversion efficiency.

For example, the DCDC converter generally includes a BOOST mode (BOOST) and a BUCK mode (BUCK), and the operation mode of the DCDC converter may be determined according to the magnitude relationship between the power supply voltage and the target voltage. For example, if the power supply voltage is less than the target voltage, the operation mode is the step-up mode, and if the power supply voltage is greater than the target voltage, the operation mode is the step-down mode. The corresponding second corresponding relationship may also be divided into a second corresponding relationship in the boost mode and a second corresponding relationship in the buck mode. After the working mode is determined, selecting a second corresponding relation corresponding to the working mode, wherein the second corresponding relation comprises a corresponding relation between a power supply voltage, a target voltage, conversion efficiency and a target load, determining at least one conversion efficiency which can be achieved when the DCDC converter converts the power supply voltage into the target voltage in the working mode, selecting the highest conversion efficiency from the at least one conversion efficiency, and finally determining the target load corresponding to the highest conversion efficiency, so that the DCDC converter performs load configuration according to the target load, can convert the power supply voltage with the highest conversion efficiency on the premise of ensuring that the power supply voltage is converted into the target voltage, and supplies power to the power amplifier, thereby reducing the power consumption of the terminal and improving the cruising ability of the terminal.

Fig. 6 is a flowchart illustrating another control method of a DCDC converter according to an exemplary embodiment, as shown in fig. 6, after step 102, the method further includes:

and 105, determining a target current range according to the transmitting power and the target voltage.

The corresponding step 1032 may be implemented by:

1) According to the second correspondence, the output current of the DCDC converter converting the power supply voltage into the target voltage in the operation mode determined in the embodiment shown in fig. 5 is determined.

2) The highest conversion efficiency of the DCDC converter is determined on the condition that the output current belongs to the target current range.

For example, after determining the target voltage, it is also possible to determine an expected input current range (i.e., the output current of the DCDC converter), i.e., a target current range, under the condition that the power amplifier is guaranteed to reach the transmission power when the target voltage is used as the input voltage of the power amplifier. Correspondingly, the second corresponding relationship may be a corresponding relationship between a power supply voltage, a target voltage, an output current, a conversion efficiency, and a target load. Firstly, the conversion efficiency and the output current which can be achieved when the DCDC converter converts the power supply voltage into the target voltage in the working mode are determined, then at least one current with the output current belonging to the target current range is screened out, each current in the corresponding at least one current corresponds to one conversion efficiency, and finally the highest conversion efficiency is selected from the conversion efficiencies corresponding to the at least one current, so that the target load corresponding to the highest conversion efficiency is determined. Through the transmitting power and the target voltage, the target current range of the expected DCDC converter is determined so as to determine the highest conversion efficiency of the DCDC converter, and the accuracy of the highest conversion efficiency can be ensured, so that the accuracy of the target load is ensured.

In summary, the present disclosure is applied to a terminal, which includes a power amplifier, a power supply and a DCDC converter, wherein the power amplifier is connected to an output terminal of the DCDC converter, and the power supply is connected to an input terminal of the DCDC converter. The method comprises the steps of firstly obtaining the transmitting power of a current terminal and the power supply voltage of a power supply, then determining the target voltage required by the power amplifier to reach the transmitting power according to a preset first corresponding relation, then determining the target load corresponding to the power supply voltage and the target voltage according to a preset second corresponding relation, and finally configuring a DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier. According to the method and the device, the target voltage required by the power amplifier is determined according to the transmitting power, and then the load configuration of the DCDC converter is determined according to the target voltage and the power supply voltage, so that the conversion efficiency of the DCDC converter can be improved on the premise of meeting the transmitting power, the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

Fig. 7 is a block diagram illustrating a control apparatus of a DCDC converter according to an exemplary embodiment, and as shown in fig. 7, the apparatus 200 is applied to the terminal, and includes a power amplifier, a power supply, and a DCDC converter, the power amplifier is connected to an output terminal of the DCDC converter, the power supply is connected to an input terminal of the DCDC converter, the apparatus 200 includes:

an obtaining module 201, configured to obtain the transmission power of the terminal and the power supply voltage of the power supply.

A voltage determining module 202, configured to determine a target voltage required by the power amplifier according to the transmission power and a preset first corresponding relationship.

And the load determining module 203 is configured to determine the target load according to the power supply voltage, the target voltage, and a preset second corresponding relationship.

The configuration module 204 is configured to configure the DCDC converter according to a target load, so that the DCDC converter converts the power supply voltage into a target voltage to supply power to the power amplifier.

The control device enables the DCDC converter to convert the power supply voltage with the highest conversion efficiency on the premise of ensuring that the power supply voltage is converted into the target voltage, and supplies power for the power amplifier, so that the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

Fig. 8 is a block diagram illustrating another control apparatus of a DCDC converter according to an exemplary embodiment, the terminal further includes a baseband processor, the baseband processor is connected to the power amplifier, and as shown in fig. 8, the obtaining module 201 includes:

the obtaining sub-module 2011 is configured to determine the transmit power according to the control instruction received by the baseband processor.

The detection sub-module 2012 is configured to detect a power supply voltage of the power supply.

Therefore, the terminal can transmit the amplified modulation signal according to the transmission power indicated by the base station, and the accuracy of the target load can be ensured.

Optionally, the voltage determination module 202 is configured to perform the following steps:

first, a target gain of the power amplifier is determined according to the transmission power.

And then, determining the lowest voltage when the power amplifier amplifies the signal with the target gain according to the first corresponding relation.

And finally, determining the lowest voltage as the target voltage.

The gain control word corresponding to the target gain may be sent to the power amplifier by the baseband processor to enable the power amplifier to achieve the transmit power.

Fig. 9 is a block diagram illustrating another control apparatus of a DCDC converter according to an exemplary embodiment, and as shown in fig. 9, the load determination module 203 includes:

the mode determining submodule 2031 is configured to determine an operating mode of the DCDC converter according to the power supply voltage and the target voltage.

The efficiency determining sub-module 2032 is configured to determine, according to the second corresponding relationship, a highest conversion efficiency of the DCDC converter converting the power supply voltage into the target voltage in the operating mode.

The load determining sub-module 2033 is configured to determine a target load according to the highest conversion efficiency.

The DCDC converter is enabled to carry out load configuration according to a target load, and can convert the power supply voltage with the highest conversion efficiency on the premise of ensuring that the power supply voltage is converted into the target voltage, so that power is supplied to the power amplifier, the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

Fig. 10 is a block diagram illustrating another control apparatus of a DCDC converter according to an exemplary embodiment, and as shown in fig. 10, the apparatus may further include:

the current determining module 205 is configured to determine a target current range according to the transmission power and the target voltage after determining the target voltage required by the power amplifier according to the transmission power and the preset first corresponding relationship.

Accordingly, the efficiency determination sub-module 2032 is configured to perform the following steps:

1) And determining the output current of the DCDC converter for converting the power supply voltage into the target voltage in the working mode according to the second corresponding relation.

2) Determining the highest conversion efficiency of the DCDC converter under the condition that the output current belongs to the target current range.

Through the transmitting power and the target voltage, a target current range of the expected DCDC converter is determined so as to determine the highest conversion efficiency of the DCDC converter, and the accuracy of the highest conversion efficiency can be ensured, so that the accuracy of a target load is ensured.

With regard to the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.

In summary, the present disclosure is applied to a terminal including a power amplifier, a power supply and a DCDC converter, wherein the power amplifier is connected to an output terminal of the DCDC converter, and the power supply is connected to an input terminal of the DCDC converter. The method comprises the steps of firstly obtaining the transmitting power of a current terminal and the power supply voltage of a power supply, then determining the target voltage required by the power amplifier to reach the transmitting power according to a preset first corresponding relation, then determining the target load corresponding to the power supply voltage and the target voltage according to a preset second corresponding relation, and finally configuring a DCDC converter according to the target load so that the DCDC converter converts the power supply voltage into the target voltage to supply power for the power amplifier. According to the method and the device, the target voltage required by the power amplifier is determined according to the transmitting power, the load configuration of the DCDC converter is determined according to the target voltage and the power voltage, and the conversion efficiency of the DCDC converter can be improved on the premise that the transmitting power is met, so that the power consumption of the terminal is reduced, and the cruising ability of the terminal is improved.

FIG. 11 is a block diagram illustrating an electronic device 300 in accordance with an example embodiment. As shown in fig. 9, the electronic device 300 may include: a processor 301, a memory 302. The electronic device 300 may also include one or more of a multimedia component 303, an input/output (I/O) interface 304, and a communication component 305.

The processor 301 is configured to control the overall operation of the electronic device 300, so as to complete all or part of the steps in the above-mentioned control method of the DCDC converter. The memory 302 is used to store various types of data to support operation at the electronic device 300, such as instructions for any application or method operating on the electronic device 300 and application-related data, such as contact data, messaging, pictures, audio, video, and the like. The Memory 302 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically Erasable Programmable Read-Only Memory (EEPROM), erasable Programmable Read-Only Memory (EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 303 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 302 or transmitted through the communication component 305. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 304 provides an interface between the processor 301 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 305 is used for wired or wireless communication between the electronic device 300 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication, 2G, 3G, 4G, NB-IOT, eMTC, MMTC, or other 5G, etc., or combinations of one or more of them, and thus the corresponding communication component 305 may include: wi-Fi module, bluetooth module, NFC module.

In an exemplary embodiment, the electronic Device 300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for executing the above-mentioned control method of the DCDC converter.

In another exemplary embodiment, there is also provided a computer readable storage medium including program instructions, which when executed by a processor, implement the steps of the control method of the DCDC converter described above. For example, the computer readable storage medium may be the above-mentioned memory 302 including program instructions executable by the processor 301 of the electronic device 300 to perform the above-mentioned control method of the DCDC converter.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned method of controlling a DCDC converter when executed by the programmable apparatus.

In another exemplary embodiment, a computer program product is also provided, which contains a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned method of controlling a DCDC converter when executed by the programmable apparatus.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.

Claims

1. The control method of the DCDC converter is characterized by being applied to a terminal, wherein the terminal comprises a power amplifier, a power supply and the DCDC converter, the power amplifier is connected with the output end of the DCDC converter, and the power supply is connected with the input end of the DCDC converter;

the method comprises the following steps:

determining a target voltage required by the power amplifier according to the transmitting power and a preset first corresponding relation; the first correspondence includes a correspondence between transmission power and a target voltage; the first corresponding relation is stored in the terminal in any form of a relation table, a relation function and a relation model;

determining a target load according to the power supply voltage, the target voltage and a preset second corresponding relation; the second corresponding relation comprises the corresponding relation among the power supply voltage, the target voltage and the target load; the second corresponding relation is stored in the terminal in any form of a relation table, a relation function and a relation model;

configuring the DCDC converter according to the target load, so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier;

the configuring the DCDC converter according to the target load includes: configuring an adjustable load of the DCDC converter as the target load, so that the DCDC converter converts the power supply voltage with the highest conversion efficiency under the condition of converting the power supply voltage into the target voltage.

2. The method of claim 1, wherein the terminal further comprises a baseband processor connected to the power amplifier, and wherein obtaining the transmit power of the terminal and the power supply voltage of the power supply comprises:

the power supply voltage of the power supply is detected.

3. The method of claim 1, wherein determining the target voltage required by the power amplifier according to the transmission power and a preset first corresponding relationship comprises:

determining the lowest voltage of the power amplifier when the power amplifier amplifies signals with the target gain according to the first corresponding relation;

determining the lowest voltage as the target voltage.

4. The method according to claim 1, wherein determining a target load according to the power supply voltage, the target voltage and a preset second corresponding relation comprises:

and determining the target load according to the highest conversion efficiency.

5. The method of claim 4, wherein after determining the target voltage required by the power amplifier according to the transmission power and a preset first corresponding relation, the method further comprises:

the determining the highest conversion efficiency of the DCDC converter to convert the power supply voltage into the target voltage in the operating mode according to the second corresponding relationship includes:

6. A control device of a DCDC converter is characterized by being applied to a terminal, wherein the terminal comprises a power amplifier, a power supply and the DCDC converter, the power amplifier is connected with the output end of the DCDC converter, and the power supply is connected with the input end of the DCDC converter;

the device comprises:

the voltage determining module is used for determining a target voltage required by the power amplifier according to the transmitting power and a preset first corresponding relation; the first correspondence includes a correspondence between transmission power and a target voltage; the first corresponding relation is stored in the terminal in any form of a relation table, a relation function and a relation model;

the load determining module is used for determining a target load according to the power supply voltage, the target voltage and a preset second corresponding relation; the second corresponding relation comprises the corresponding relation among the power supply voltage, the target voltage and the target load; the second corresponding relation is stored in the terminal in any form of a relation table, a relation function and a relation model;

a configuration module, configured to configure the DCDC converter according to the target load, so that the DCDC converter converts the power supply voltage into the target voltage to supply power to the power amplifier;

the configuration module is configured to configure an adjustable load of the DCDC converter as the target load, so that the DCDC converter converts the power supply voltage with the highest conversion efficiency when converting the power supply voltage into the target voltage.

7. The apparatus of claim 6, wherein the terminal further comprises a baseband processor, the baseband processor being connected to the power amplifier, and wherein the obtaining module comprises:

the obtaining submodule is used for determining the transmitting power according to the control instruction received by the baseband processor;

a detection submodule for detecting the supply voltage of the power supply.

8. The apparatus of claim 6, wherein the voltage determination module is configured to:

determining the lowest voltage as the target voltage.

9. The apparatus of claim 6, wherein the load determination module comprises:

the efficiency determination submodule is used for determining the highest conversion efficiency of the DCDC converter for converting the power supply voltage into the target voltage in the working mode according to the second corresponding relation;

10. The apparatus of claim 9, further comprising:

the efficiency determination submodule is configured to:

11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.

12. An electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 5.