WO2020107855A1 - 无线充电装置的控制方法、装置以及无线充电装置 - Google Patents

无线充电装置的控制方法、装置以及无线充电装置 Download PDF

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Publication number
WO2020107855A1
WO2020107855A1 PCT/CN2019/090408 CN2019090408W WO2020107855A1 WO 2020107855 A1 WO2020107855 A1 WO 2020107855A1 CN 2019090408 W CN2019090408 W CN 2019090408W WO 2020107855 A1 WO2020107855 A1 WO 2020107855A1
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Prior art keywords
wireless
power
power signal
voltage
adjustment value
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Ceased
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PCT/CN2019/090408
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English (en)
French (fr)
Inventor
王彦腾
李志杰
许春利
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to JP2019542082A priority Critical patent/JP7002553B2/ja
Priority to KR1020197023236A priority patent/KR102202650B1/ko
Priority to RU2019134236A priority patent/RU2729411C1/ru
Publication of WO2020107855A1 publication Critical patent/WO2020107855A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage

Definitions

  • the present disclosure relates to the technical field of wireless charging, and in particular, to a method and device for controlling a wireless charging device, and a wireless charging device.
  • wireless charging technology Wireless charging technology
  • more and more terminal devices such as wearable devices, mobile intelligent terminals, etc.
  • use wireless charging technology for charging In the related art, there are problems such as poor efficiency in the method of power adjustment in wireless charging, and serious heat generation of the terminal device during high-power charging.
  • the present disclosure provides a control method and device of a wireless charging device, and a wireless charging device.
  • a control method of a wireless charging device is provided, which is applied to a wireless charging device that converts a DC power signal provided by a charger into a wireless AC power signal to perform Wireless charging, the method includes:
  • an adjustment to at least one of the output voltage and output frequency of the wireless AC power signal is determined according to the power adjustment value to adjust the wireless AC power Signal output power, including:
  • At least one of the output voltage and the output frequency of the wireless AC power signal is adjusted according to the power adjustment value to improve the wireless The output power of the AC power signal;
  • At least one of the output voltage and the output frequency of the wireless AC power signal is adjusted according to the power adjustment value to reduce the wireless The output power of the AC power signal.
  • At least one of the output voltage and the output frequency of the wireless AC power signal is adjusted according to the power adjustment value, including at least one of the following:
  • the output voltage of the wireless AC power signal is reduced.
  • the power adjustment value is expressed by Equation 1,
  • V target is the target voltage of the wireless AC power signal received by the terminal
  • V rect is the actual voltage of the wireless AC power signal received by the terminal
  • a is the adjustment coefficient
  • the method further includes:
  • the wireless charging device does not include a step-down conversion circuit, determine the type of charger connected to the wireless charging device;
  • At least one of the output frequency and the duty ratio of the wireless AC power signal is adjusted according to the power adjustment value to adjust the wireless AC power signal Output power.
  • a control device for a wireless charging device which is applied to a wireless charging device.
  • the wireless charging device converts a DC power signal provided by a charger into a wireless AC power signal to perform Wireless charging, the device includes:
  • the adjustment value receiving module receives the power adjustment value sent by the terminal, where the power adjustment value represents the difference between the actual voltage and the target voltage of the wireless AC power signal received by the terminal;
  • the first control module adjusts at least one of the output voltage and the output frequency of the wireless AC power signal according to the power adjustment value to adjust the output power of the wireless AC power signal.
  • the first control module includes:
  • a power increase submodule when the power adjustment value indicates that the actual voltage is less than the target voltage, adjusting at least one of the output voltage and the output frequency of the wireless AC power signal according to the power adjustment value, To increase the output power of the wireless AC power signal;
  • a power reduction submodule when the power adjustment value indicates that the actual voltage is greater than the target voltage, adjusting at least one of the output voltage and the output frequency of the wireless AC power signal according to the power adjustment value, In order to reduce the output power of the wireless AC power signal.
  • the first control module includes at least one of the following submodules:
  • a boosting submodule when the power adjustment value indicates that the actual voltage is less than the target voltage and the output voltage of the wireless AC power signal is less than a voltage limit, increasing the output voltage of the wireless AC power signal;
  • a frequency reduction submodule when the power adjustment value indicates that the actual voltage is less than the target voltage, and the output voltage of the wireless AC power signal is equal to a voltage limit, reducing the output frequency of the wireless AC power signal;
  • a frequency up submodule when the power adjustment value indicates that the actual voltage is greater than the target voltage and the output frequency of the wireless AC power signal is less than the frequency limit, increasing the output frequency of the wireless AC power signal;
  • the step-down submodule reduces the output voltage of the wireless AC power signal when the power adjustment value indicates that the actual voltage is greater than the target voltage and the output frequency of the wireless AC power signal is equal to the frequency limit.
  • the power adjustment value is expressed by Equation 1,
  • V target is the target voltage of the wireless AC power signal received by the terminal
  • V rect is the actual voltage of the wireless AC power signal received by the terminal
  • a is the adjustment coefficient
  • the device further includes:
  • a type determination module when the wireless charging device does not include a step-down conversion circuit, determines the type of the charger connected to the wireless charging device;
  • the second control module when the determined type of charger does not have a voltage adjustment function, adjusts at least one of the output frequency and the duty ratio of the wireless AC power signal according to the power adjustment value to adjust the The output power of the wireless AC power signal is described.
  • the technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:
  • the control method and device of the wireless charging device and the wireless charging device provided by the embodiments of the present disclosure can satisfy the change of the battery load power requirement of the terminal while ensuring The terminal performs wireless charging efficiency, and avoids the occurrence of serious terminal heating during high-power charging, and has a wide range of applications.
  • Fig. 1 is a wireless charging system according to an exemplary embodiment.
  • Fig. 2 is a flow chart showing a method for controlling a wireless charging device according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing a method for controlling a wireless charging device according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a method for controlling a wireless charging device according to an exemplary embodiment.
  • Fig. 5 is a block diagram of a control device of a wireless charging device according to an exemplary embodiment.
  • Fig. 6 is a block diagram of a control device of a wireless charging device according to an exemplary embodiment.
  • Fig. 1 is a wireless charging system according to an exemplary embodiment.
  • the wireless charging system includes a wireless charging device 10 and a wireless charging module 20 provided in a terminal.
  • the wireless charging device 10 may include a transmitter 1, a controller 2, and a sending coil 3, and the wireless charging module 20 may include a receiving coil 4, a receiver 5, and a wireless charging manager 6.
  • the receiver 5 and the wireless charging manager 6 in the wireless charging module 20 are connected to the system processor k of the terminal, and obtain the charging information required to charge the battery of the terminal from the system processor k, and based on the system processor k Configuration information sent for configuration.
  • the transmitter 1 is connected to the charger 30, receives the DC power signal provided by the charger 30, and converts the DC power signal into a wireless AC power signal under the control of the controller 2, and sends it out through the sending coil 3.
  • the receiving coil 4 receives the wireless AC power signal sent by the transmitting coil 3 and sends it to the receiver 5.
  • the receiver 5 converts the wireless AC power signal into a DC charging power signal required for charging the battery of the terminal.
  • the wireless charging manager 6 charges the battery of the terminal based on the DC charging power signal, and supplies power to the terminal.
  • the transmitter 1 may include a full-bridge inverter circuit or a half-bridge inverter circuit, which is used to convert a DC power signal into a required wireless AC power signal.
  • the receiver 5 may include a rectification circuit and a modulation and demodulation circuit. The rectification circuit is used to convert the wireless AC power signal into a required DC charging power signal, and the modulation and demodulation circuit is used to modulate and demodulate the signal.
  • Fig. 2 is a flow chart showing a method for controlling a wireless charging device according to an exemplary embodiment. This method can be applied to the wireless charging device shown in FIG. 1, for example, can be executed by the controller 2, and the wireless charging device converts the DC power signal provided by the charger into a wireless AC power signal to wirelessly charge the terminal. As shown in FIG. 2, the method includes step S11 and step S12.
  • step S11 the power adjustment value sent by the terminal is received, and the power adjustment value represents the difference between the actual voltage and the target voltage of the wireless AC power signal received by the terminal.
  • the terminal may be a mobile phone, a tablet computer, a smart watch, etc.
  • step S12 at least one of the output voltage and the output frequency of the wireless AC power signal is adjusted according to the power adjustment value to adjust the output power of the wireless AC power signal.
  • the control method of the wireless charging device receives the power adjustment value sent by the terminal, and adjusts at least one of the output voltage and output frequency of the wireless AC power signal according to the power adjustment value to adjust the wireless AC power The output power of the signal.
  • This method can meet the change of the battery load power demand of the terminal, and ensure the wireless charging efficiency for the terminal, and avoid the occurrence of serious terminal heating during the high-power charging process, and has a wide range of applications.
  • the terminal may determine the power adjustment value through the output voltage of its own rectifier circuit.
  • the terminal may couple the power adjustment value to the wireless charging device through an ASK modulation signal, and the wireless charging device demodulates the ASK modulation signal to obtain the power adjustment value.
  • the power adjustment value can be expressed by Equation 1,
  • V target is the target voltage of the wireless AC power signal received by the terminal
  • V rect is the actual voltage of the wireless AC power signal received by the terminal
  • a is the adjustment coefficient
  • the value of the adjustment coefficient a is set according to the charging requirements of the terminal, the adjustment capability of the wireless charging device, etc.
  • a may be set to 128, which is not limited in the present disclosure.
  • the target voltage of the wireless AC power signal received by the terminal may be determined according to information such as the type, rated capacity, and limit voltage of the battery in the terminal.
  • different target voltages can be set for different battery charging stages. For example, in the constant voltage charging phase of the battery, the target voltage is set to 4.2v; during the trickle charging phase of the battery, the target voltage is set to 3v.
  • a person skilled in the art can set the target voltage according to actual needs, which is not limited in the present disclosure.
  • the absolute value of the power adjustment value can represent the degree to which the output power of the wireless AC power signal needs to be adjusted.
  • the greater the absolute value of the power adjustment value the greater the gap between the actual voltage and the target voltage, and the greater the degree of adjustment required for the output power of the wireless AC power signal.
  • the smaller the absolute value of the power adjustment value the smaller the difference between the actual voltage and the target voltage, and the smaller the degree of adjustment required for the output power of the wireless AC power signal.
  • the power adjustment value sent by the terminal may be sent through a control error packet CEP (control error packet, CEP for short).
  • CEP control error packet
  • the power adjustment value can be expressed by 8 bits (Bit), where Bit6 ⁇ 0 can be used to indicate the specific value of the power adjustment value, Bit7 can be used to indicate the positive and negative of the power adjustment value.
  • step S12 the magnitude relationship between the actual voltage of the wireless AC power signal received by the terminal and the preset target voltage of the wireless AC power signal required by the terminal to be received may be determined according to the power adjustment value Then, according to the relationship between the actual voltage and the target voltage, it is determined to increase or decrease the output power of the wireless AC power signal.
  • Fig. 3 is a flow chart showing a method for controlling a wireless charging device according to an exemplary embodiment. As shown in FIG. 3, step S12 may include step S121 and step S122.
  • step S121 when the power adjustment value indicates that the actual voltage is less than the target voltage, at least one of the output voltage and the output frequency of the wireless AC power signal is adjusted according to the power adjustment value to increase the output power of the wireless AC power signal.
  • step S122 when the power adjustment value indicates that the actual voltage is greater than the target voltage, at least one of the output voltage and the output frequency of the wireless AC power signal is adjusted according to the power adjustment value to reduce the output power of the wireless AC power signal.
  • the output power of the wireless AC power signal may not be adjusted.
  • the power adjustment value is expressed by Equation 1, when the power adjustment value is greater than zero, the actual voltage can be determined to be less than the target voltage; when the power adjustment value is less than zero, the actual voltage can be determined to be greater than the target Voltage.
  • step S12 may include at least one of the following:
  • the output frequency of the wireless AC power signal is reduced to increase the output power of the wireless AC power signal.
  • the power adjustment value indicates that the actual voltage is greater than the target voltage and the output frequency of the wireless AC power signal is less than the frequency limit, increase the output frequency of the wireless AC power signal to reduce the output power of the wireless AC power signal.
  • the output voltage of the wireless AC power signal may be increased first. If the output voltage is increased to the voltage limit, the output power of the wireless AC power signal still needs to be increased, and the output power of the wireless AC power signal can be further increased by reducing the output frequency of the wireless AC power signal. In this way, it is possible to ensure that the efficiency of wireless charging can be maintained in an optimal state while satisfying the battery load power requirements from low to high and the need to increase the output power of the wireless AC power signal.
  • the output frequency of the wireless AC power signal may be increased first. If the output frequency is increased to the frequency limit, the output power of the wireless AC power signal still needs to be reduced. The output power of the wireless AC power signal can be further reduced by reducing the output voltage of the wireless AC power signal.
  • the output power of the wireless AC power signal is changed by adjusting the output voltage and output frequency of the wireless AC power signal to meet the power change requirements of the wireless AC power signal required by the terminal, and to ensure that the terminal is wirelessly charged
  • the charging efficiency is always in the optimal state during the process.
  • the correspondence between the magnitude of the power adjustment value and the adjusted output voltage and output frequency may be predetermined. After receiving the power adjustment value, the amplitude of the output voltage or the output frequency to be adjusted is determined according to the magnitude of the power adjustment value and the determined correspondence.
  • different power adjustment value ranges can be set, and different value ranges correspond to different output voltage amplitudes or output frequency ranges.
  • ⁇ (U 1 , U 2 ) the output voltage can be increased or decreased by 20 mv, or the output frequency can be increased or decreased by 20 Hz.
  • ⁇ (U 2 , U 3 ) the output voltage can be increased or decreased by 30mv, or the output frequency can be increased or decreased by 30Hz.
  • Those skilled in the art can set the output voltage and output frequency to be changed according to actual needs, and the disclosure does not limit this.
  • the amplitude of the output voltage and output frequency corresponding to the magnitude of the power adjustment value may be determined according to the magnitude of the power adjustment value, and then the output power of the wireless AC power signal may be adjusted according to the determined magnitude.
  • Fig. 4 is a flow chart showing a method for controlling a wireless charging device according to an exemplary embodiment.
  • the method may further include step S13 and step S14.
  • step S13 when the wireless charging device does not include a step-down conversion circuit (also called a buck circuit), the type of charger connected to the wireless charging device is determined.
  • a step-down conversion circuit also called a buck circuit
  • the charger may include a DCP charger, a QC2.0 charger, a QC3.0 charger, a QC4.0 charger, a PD charger, and other chargers that can provide a DC power signal to the wireless charging device.
  • PD charger, QC3.0 charger and QC4.0 charger have voltage adjustment function.
  • DCP charger and QC2.0 charger do not have voltage adjustment function.
  • step S14 when the determined type of charger does not have a voltage adjustment function, at least one of the output frequency and the duty ratio of the wireless AC power signal is adjusted according to the power adjustment value to adjust the wireless AC power signal Output Power.
  • the output frequency and/or duty cycle adjustment can be used.
  • the output frequency of the wireless AC power signal may be increased first. If the output frequency has been increased to the frequency limit, the output power of the wireless AC power signal needs to be reduced, and the output power of the wireless AC power signal can be further reduced by reducing the duty ratio.
  • the output frequency of the wireless AC power signal can be reduced, or the duty ratio of the wireless AC power signal can be increased.
  • the wireless charging device when the wireless charging device includes a step-down conversion circuit, the type of the charger connected to the wireless charging device may not be recognized, and the wireless power charging device may directly adjust the output power in step S12. Adjust the output power of the AC power signal.
  • the method of adjusting the output power in step S12 can also be used to control the wireless Adjust the output power of the AC power signal.
  • the method provided by the present disclosure can adjust the output power of the wireless AC power signal sent by the wireless charging device, and has a wide range of applications.
  • Fig. 5 is a block diagram of a control device of a wireless charging device according to an exemplary embodiment.
  • the control device of the wireless charging device is applied to a wireless charging device, which converts the DC power signal provided by the charger into a wireless AC power signal to wirelessly charge the terminal.
  • the control device of the wireless charging device includes an adjustment value receiving module 41 and a first control module 42.
  • the adjustment value receiving module 41 is configured to receive the power adjustment value sent by the terminal, where the power adjustment value represents the difference between the actual voltage and the target voltage of the wireless AC power signal received by the terminal.
  • the first control module 42 is configured to adjust at least one of the output voltage and output frequency of the wireless AC power signal according to the power adjustment value to adjust the output power of the wireless AC power signal.
  • Fig. 6 is a block diagram of a control device of a wireless charging device according to an exemplary embodiment.
  • the first control module 42 may include a power increase sub-module 421 and a power decrease sub-module 422.
  • the power increase sub-module 421 is configured to adjust at least one of the output voltage and the output frequency of the wireless AC power signal according to the power adjustment value when the power adjustment value indicates that the actual voltage is less than the target voltage to improve the wireless AC power signal Output power.
  • the power reduction submodule 422 is configured to adjust at least one of the output voltage and the output frequency of the wireless AC power signal according to the power adjustment value when the power adjustment value indicates that the actual voltage is greater than the target voltage to reduce the wireless AC power signal Output power.
  • the first control module 42 may include at least one of the following sub-modules: a boost sub-module, a frequency down sub-module, a frequency up sub-module, and a voltage-down sub-module.
  • the boosting sub-module is configured to increase the output voltage of the wireless AC power signal when the power adjustment value indicates that the actual voltage is less than the target voltage and the output voltage of the wireless AC power signal is less than the voltage limit.
  • the frequency reduction sub-module is configured to reduce the output frequency of the wireless AC power signal when the power adjustment value indicates that the actual voltage is less than the target voltage and the output voltage of the wireless AC power signal is equal to the voltage limit.
  • the up-conversion sub-module is configured to increase the output frequency of the wireless AC power signal when the power adjustment value indicates that the actual voltage is greater than the target voltage and the output frequency of the wireless AC power signal is less than the frequency limit.
  • the step-down submodule is configured to reduce the output voltage of the wireless AC power signal when the power adjustment value indicates that the actual voltage is greater than the target voltage and the output frequency of the wireless AC power signal is equal to the frequency limit.
  • the power adjustment value can be expressed by Equation 1,
  • V target is the target voltage of the wireless AC power signal received by the terminal
  • V rect is the actual voltage of the wireless AC power signal received by the terminal
  • a is the adjustment coefficient
  • the device may further include a type determination module 43 and a second control module 44.
  • the type determination module 43 is configured to determine the type of the charger connected to the wireless charging device when the step-down conversion circuit is not included in the wireless charging device.
  • the second control module 44 is configured to adjust at least one of the output frequency and the duty cycle of the wireless AC power signal according to the power adjustment value when the determined type of charger does not have a voltage adjustment function to adjust the wireless The output power of the AC power signal.
  • the control device of the wireless charging device provided by the embodiment of the present disclosure can satisfy the change of the battery load power requirement of the terminal, and at the same time ensure the wireless charging efficiency for the terminal, and avoid the occurrence of serious terminal heating during the high-power charging process Wide range of application.
  • control device of the wireless charging device is described above by taking the above embodiment as an example, those skilled in the art can understand that the present disclosure should not be limited to this. In fact, the user can set various modules flexibly according to personal preferences and/or actual application scenarios, as long as the technical solutions of the present disclosure are met.
  • An embodiment of the present disclosure also proposes a wireless charging device, which includes the above-mentioned wireless charging device control device.

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Abstract

一种无线充电装置的控制方法、装置以及无线充电装置，该方法包括：接收终端发送的功率调整值；根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整无线交流功率信号的输出功率。上述无线充电装置的控制方法、装置以及无线充电装置，可以在满足终端的电池负载功率需求变化的同时，保证为终端进行无线充电效率，且避免了大功率充电过程中终端发热严重情况的发生，适用范围广泛。

Description

无线充电装置的控制方法、装置以及无线充电装置
本申请基于申请号为201811455820.4、申请日为2018年11月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及无线充电技术领域，尤其涉及一种无线充电装置的控制方法、装置以及无线充电装置。
背景技术
随着无线充电技术(Wireless charging technology)的不断发展，越来越多的可穿戴设备、移动智能终端等终端设备，采用无线充电技术进行充电。相关技术中，无线充电中进行功率调整的方式存在的效率差，大功率充电时终端设备发热严重等问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种无线充电装置的控制方法、装置以及无线充电装置。
根据本公开实施例的第一方面，提供一种无线充电装置的控制方法，应用于无线充电装置，所述无线充电装置将充电器提供的直流功率信号转换为无线交流功率信号，以对终端进行无线充电，所述方法包括：
接收所述终端发送的功率调整值，所述功率调整值表示终端接收到的无线交流功率信号的实际电压与目标电压之间的差异；
根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
对于上述方法，在一种可能的实现方式中，根据所述功率调整值确定对所述无线交流功率信号的输出电压和输出频率中的至少一项所进行的调整，以调整所述无线交流功率信号的输出功率，包括：
在所述功率调整值表示所述实际电压小于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以提高所述无线交流功率信号的输出功率；
在所述功率调整值表示所述实际电压大于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以降低所述无线交流功率信号的输出功率。
对于上述方法，在一种可能的实现方式中，根据所述功率调整值对所述无线交流功率 信号的输出电压和输出频率中的至少一项进行调整，包括以下至少一项：
在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压小于电压限值时，提高所述无线交流功率信号的输出电压；
在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压等于电压限值时，降低所述无线交流功率信号的输出频率；
在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率小于频率限值时，提高所述无线交流功率信号的输出频率；
在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率等于频率限值时，降低所述无线交流功率信号的输出电压。
对于上述方法，在一种可能的实现方式中，所述功率调整值通过式1表示，
Figure PCTCN2019090408-appb-000001
其中，CEP value为所述功率调整值，V target为所述终端所接收到的无线交流功率信号的目标电压，V rect为所述终端接收到的无线交流功率信号的实际电压，a为调整系数。
对于上述方法，在一种可能的实现方式中，所述方法还包括：
当所述无线充电装置中不包含降压式变换电路时，确定与所述无线充电装置连接的充电器的类型；
当所确定的类型的充电器不具有电压调整功能时，根据所述功率调整值对所述无线交流功率信号的输出频率和占空比中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
根据本公开实施例的第二方面，提供一种无线充电装置的控制装置，应用于无线充电装置，所述无线充电装置将充电器提供的直流功率信号转换为无线交流功率信号，以对终端进行无线充电，所述装置包括：
调整值接收模块，接收所述终端发送的功率调整值，所述功率调整值表示终端接收到的无线交流功率信号的实际电压与目标电压之间的差异；
第一控制模块，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
对于上述装置，在一种可能的实现方式中，所述第一控制模块，包括：
提高功率子模块，在所述功率调整值表示所述实际电压小于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以提高所述无线交流功率信号的输出功率；
降低功率子模块，在所述功率调整值表示所述实际电压大于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以降低所述无线交流功率信号的输出功率。
对于上述装置，在一种可能的实现方式中，第一控制模块，包括以下至少一个子模块：
升压子模块，在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压小于电压限值时，提高所述无线交流功率信号的输出电压；
降频子模块，在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压等于电压限值时，降低所述无线交流功率信号的输出频率；
升频子模块，在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率小于频率限值时，提高所述无线交流功率信号的输出频率；
降压子模块，在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率等于频率限值时，降低所述无线交流功率信号的输出电压。
对于上述装置，在一种可能的实现方式中，所述功率调整值通过式1表示，
Figure PCTCN2019090408-appb-000002
其中，CEP value为所述功率调整值，V target为所述终端所接收到的无线交流功率信号的目标电压，V rect为所述终端接收到的无线交流功率信号的实际电压，a为调整系数。
对于上述装置，在一种可能的实现方式中，所述装置还包括：
类型确定模块，当所述无线充电装置中不包含降压式变换电路时，确定与所述无线充电装置连接的充电器的类型；
第二控制模块，当所确定的类型的充电器不具有电压调整功能时，根据所述功率调整值对所述无线交流功率信号的输出频率和占空比中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
本公开的实施例提供的技术方案可以包括以下有益效果：本公开实施例所提供的无线充电装置的控制方法、装置以及无线充电装置，可以在满足终端的电池负载功率需求变化的同时，保证为终端进行无线充电效率，且避免了大功率充电过程中终端发热严重情况的发生，适用范围广泛。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线充电系统。
图2是根据一示例性实施例示出的一种无线充电装置的控制方法的流程图。
图3是根据一示例性实施例示出的一种无线充电装置的控制方法的流程图。
图4是根据一示例性实施例示出的一种无线充电装置的控制方法的流程图。
图5是根据一示例性实施例示出的一种无线充电装置的控制装置框图。
图6是根据一示例性实施例示出的一种无线充电装置的控制装置框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
图1是根据一示例性实施例示出的一种无线充电系统。如图1所示，该无线充电系统包括无线充电装置10以及设置于终端中的无线充电模块20。其中，无线充电装置10可以包括发射器1、控制器2、发送线圈3，无线充电模块20可以包括接收线圈4、接收器5、无线充电管理器6。无线充电模块20中的接收器5和无线充电管理器6与终端的系统处理器k连接，从系统处理器k中获取到对终端的电池进行充电所需的充电信息，以及基于系统处理器k发出的配置信息进行配置等。
其中，发射器1与充电器30连接，接收充电器30提供的直流功率信号，并在控制器2的控制下将直流功率信号转换为无线交流功率信号，并通过发送线圈3发出。收线圈4接收发送线圈3发出的无线交流功率信号，并将其发送至接收器5。接收器5在无线充电管理器6的控制下，将无线交流功率信号转换成为终端的电池进行充电所需的直流充电功率信号。无线充电管理器6基于直流充电功率信号为终端的电池充电，以及为终端进行系统供电。
其中，发射器1中可以包括全桥逆变电路或半桥逆变电路，用于将直流功率信号转换为所需的无线交流功率信号。接收器5中可以包括整流电路、调制解调电路，整流电路用于将无线交流功率信号转换为所需的直流充电功率信号，调制解调电路用于对信号进行调制和解调。
图2是根据一示例性实施例示出的一种无线充电装置的控制方法的流程图。该方法可以应用于图1所示的无线充电装置，例如可通过控制器2执行，该无线充电装置将充电器提供的直流功率信号转换为无线交流功率信号，以对终端进行无线充电。如图2所示，该方法包括步骤S11和步骤S12。
在步骤S11中，接收终端发送的功率调整值，功率调整值表示终端接收到的无线交流功率信号的实际电压与目标电压之间的差异。其中，终端可以是手机、平板电脑、智能手表等。
在步骤S12中，根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整无线交流功率信号的输出功率。
本公开实施例所提供的无线充电装置的控制方法，接收终端发送的功率调整值，根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整无线交流功率信号的输出功率。该方法可以在满足终端的电池负载功率需求变化的同时，保 证为终端进行无线充电效率，且避免了大功率充电过程中终端发热严重情况的发生，适用范围广泛。
在一种可能的实现方式中，终端可以通过自身的整流电路的输出电压来确定功率调整值。终端可以通过ASK调制(Ask modulation)信号将功率调整值耦合到无线充电装置中，无线充电装置对ASK调制信号进行解调，得到功率调整值。
在一种可能的实现方式中，功率调整值可以通过式1表示，
Figure PCTCN2019090408-appb-000003
其中，CEP value为功率调整值，V target为终端所接收到的无线交流功率信号的目标电压，V rect为终端接收到的无线交流功率信号的实际电压，a为调整系数。
其中，以根据终端的充电需求、无线充电装置的调整能力等对调整系数a的值进行设置，例如，a可以设置为128，本公开对此不作限制。
在该实现方式中，终端接收到的无线交流功率信号的目标电压，可以是根据终端中电池的类型、额定容量、限制电压等信息确定的。并且，由于电池在不同充电阶段(包括涓流充电、恒流充电、恒压充电和终止充电)所需的电压并不完全相同，可以为不同的电池充电阶段设置不同的目标电压。例如，在电池的恒压充电阶段，将目标电压设置为4.2v；在电池的涓流充电阶段，将目标电压设置为3v。本领域技术人员可以根据实际需要对目标电压进行设置，本公开对此不作限制。
在该实现方式中，功率调整值的绝对值大小能够表征需要对无线交流功率信号的输出功率所需要进行调整的程度。功率调整值的绝对值越大，实际电压和目标电压的差距越大，对无线交流功率信号的输出功率所需进行调整的程度越大。功率调整值的绝对值越小，实际电压和目标电压的差距越小，对无线交流功率信号的输出功率所需进行调整的程度越小。
在一种可能的实现方式中，终端所发送的功率调整值可以是通过控制误差包CEP(control error packet，简称CEP)发送的。在CEP包中，功率调整值可以通过8个比特位(Bit)来表示，其中，Bit6～0可以用于表示功率调整值的具体数值，Bit7可以用于表示功率调整值的正负。
在一种可能的实现方式中，在步骤S12中可以根据功率调整值确定终端所接收到的无线交流功率信号的实际电压与预先设定的终端所需接收无线交流功率信号的目标电压的大小关系，进而根据实际电压与目标电压的大小关系，确定提高或降低无线交流功率信号的输出功率。图3是根据一示例性实施例示出的一种无线充电装置的控制方法的流程图。如图3所示，步骤S12可以包括步骤S121和步骤S122。
在步骤S121中，在功率调整值表示实际电压小于目标电压时，根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以提高无线交流功率信号的输出功率。
在步骤S122中，在功率调整值表示实际电压大于目标电压时，根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以降低无线交流功率信号的输出功率。
其中，在功率调整值表示实际电压等于目标电压时，可不对无线交流功率信号的输出功率进行调整。
在一种可能的实现方式中，如果功率调整值是采用式1表示的，在功率调整值大于零时，可以确定实际电压小于目标电压；在功率调整值小于零时，可以确定实际电压大于目标电压。
在一种可能的实现方式中，步骤S12可以包括以下至少一项：
在功率调整值表示实际电压小于目标电压、且无线交流功率信号的输出电压小于电压限值时，提高无线交流功率信号的输出电压，以提高无线交流功率信号的输出功率。
在功率调整值表示实际电压小于目标电压、且无线交流功率信号的输出电压等于电压限值时，降低无线交流功率信号的输出频率，以提高无线交流功率信号的输出功率。
在功率调整值表示实际电压大于目标电压、且无线交流功率信号的输出频率小于频率限值时，提高无线交流功率信号的输出频率，以降低无线交流功率信号的输出功率。
在功率调整值表示实际电压大于目标电压、且无线交流功率信号的输出频率等于频率限值时，降低无线交流功率信号的输出电压，以降低无线交流功率信号的输出功率。
在该实现方式中，当确定需要提高无线交流功率信号的输出功率时，可以首先提高无线交流功率信号的输出电压。若将输出电压提高至电压限值后，仍需提高无线交流功率信号的输出功率，可以通过降低无线交流功率信号的输出频率的方式继续提高无线交流功率信号的输出功率。这样，可以在满足电池负载功率需求由少到多、需要提高无线交流功率信号的输出功率的同时，保证无线充电的效率能保持在最优的状态。
在该实现方式中，当确定需要降低无线交流功率信号的输出功率时，可首先提高无线交流功率信号的输出频率。若将输出频率提高至频率限值后，仍需降低无线交流功率信号的输出功率，可以通过降低无线交流功率信号的输出电压的方式继续降低无线交流功率信号的输出功率。
通过上述方式，通过调整无线交流功率信号的输出电压和输出频率相结合的方式改变无线交流功率信号的输出功率，满足终端所需的无线交流功率信号的功率变化需求，并保证为终端进行无线充电的过程中充电效率始终处于最优状态。
在一种可能的实现方式中，可以预先确定功率调整值的数值大小与调整输出电压和输出频率之间的对应关系。进而在接收到功率调整值之后，根据功率调整值的数值大小以及确定的对应关系，确定需要调整的输出电压的幅度或者输出频率的幅度。
在该实现方式中，可以设置不同的功率调整值的数值大小范围，不同的数值范围对应不同的输出电压的幅度或者输出频率的范围。例如，设置在|CEP value|∈(U 1,U 2)时，输出电压可以提高或降低20mv，或者输出频率提高或降低20Hz。在|CEP value|∈(U 2,U 3)时，输出 电压可以提高或降低30mv，或者输出频率提高或降低30Hz。本领域技术人员可以根据实际需要对输出电压和输出频率所需改变的幅度进行设置，本公开对此不作限制。
在该实现方式中，还可以根据功率调整值的数值大小，确定出与该数值大小相对应的输出电压和输出频率的幅度，进而根据确定的幅度调整无线交流功率信号的输出功率。
图4是根据一示例性实施例示出的一种无线充电装置的控制方法的流程图。在一种可能的实现方式中，如图4所示，该方法还可以包括步骤S13和步骤S14。
在步骤S13中，当无线充电装置中不包含降压式变换电路(也称BUCK电路)时，确定与无线充电装置连接的充电器的类型。
在该实现方式中，充电器可以包括DCP充电器、QC2.0充电器、QC3.0充电器、QC4.0充电器和PD充电器等能够为无线充电装置提供直流功率信号的充电器。其中，PD充电器、QC3.0充电器和QC4.0充电器具有电压调整功能。DCP充电器、QC2.0充电器不具备电压调整功能。
在步骤S14中，当所确定的类型的充电器不具有电压调整功能时，根据功率调整值对无线交流功率信号的输出频率和占空比中的至少一项进行调整，以调整无线交流功率信号的输出功率。
在该实现方式中，若充电器为DCP充电器或者QC2.0充电器时，由于二者不具备电压调整功能，对于这两种类型的充电器可以采用调整输出频率和/或占空比的方式调整无线交流功率信号的输出功率。其中，在根据功率调整值确定需要降低无线交流功率信号的输出功率时，可以首先提高无线交流功率信号的输出频率。若输出频率已提高至频率限值后，还需要降低无线交流功率信号的输出功率，可以通过降低占空比的方式继续降低无线交流功率信号的输出功率。在根据功率调整值确定需要提高无线交流功率信号的输出功率时，可以降低无线交流功率信号的输出频率，或者提高无线交流功率信号的占空比。
在一种可能的实现方式中，当无线充电装置中包含降压式变换电路时，可以不对无线充电装置所连接的充电器的类型进行识别，可以直接采用步骤S12的调节输出功率的方式对无线交流功率信号的输出功率进行调整。
在一种可能的实现方式中，当无线充电装置中不包含降压式变换电路、且与无线充电装置连接的充电器具备电压调整功能时，同样可以采用步骤S12的调节输出功率的方式对无线交流功率信号的输出功率进行调整。
这样，无论所连接的充电机是否具备电压调整功能，本公开所提供的方法均可以对无线充电装置所发出的无线交流功率信号的输出功率进行调整，适用范围广泛。
需要说明的是，尽管以上述实施例作为示例介绍了无线充电装置的控制方法示例如上，但本领域技术人员能够理解，本公开应不限于此。事实上，用户完全可根据个人喜好和/或实际应用场景灵活设定各步骤，只要符合本公开的技术方案即可。
图5是根据一示例性实施例示出的一种无线充电装置的控制装置框图。该无线充电装 置的控制装置应用于无线充电装置，该无线充电装置将充电器提供的直流功率信号转换为无线交流功率信号，以对终端进行无线充电。如图5所示，该无线充电装置的控制装置包括调整值接收模块41和第一控制模块42。该调整值接收模块41被配置为接收终端发送的功率调整值，功率调整值表示终端接收到的无线交流功率信号的实际电压与目标电压之间的差异。该第一控制模块42被配置为根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整无线交流功率信号的输出功率。
图6是根据一示例性实施例示出的一种无线充电装置的控制装置框图。在一种可能的实现方式中，如图6所示，第一控制模块42可以包括提高功率子模块421和降低功率子模块422。该提高功率子模块421被配置为在功率调整值表示实际电压小于目标电压时，根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以提高无线交流功率信号的输出功率。该降低功率子模块422被配置为在功率调整值表示实际电压大于目标电压时，根据功率调整值对无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以降低无线交流功率信号的输出功率。
在一种可能的实现方式中，第一控制模块42可以包括以下至少一个子模块：升压子模块、降频子模块、升频子模块和降压子模块。
其中，该升压子模块被配置为在功率调整值表示实际电压小于目标电压、且无线交流功率信号的输出电压小于电压限值时，提高无线交流功率信号的输出电压。该降频子模块被配置为在功率调整值表示实际电压小于目标电压、且无线交流功率信号的输出电压等于电压限值时，降低无线交流功率信号的输出频率。该升频子模块被配置为在功率调整值表示实际电压大于目标电压、且无线交流功率信号的输出频率小于频率限值时，提高无线交流功率信号的输出频率。该降压子模块被配置为在功率调整值表示实际电压大于目标电压、且无线交流功率信号的输出频率等于频率限值时，降低无线交流功率信号的输出电压。
在一种可能的实现方式中，功率调整值可以通过式1表示，
Figure PCTCN2019090408-appb-000004
其中，CEP value为功率调整值，V target为终端所接收到的无线交流功率信号的目标电压，V rect为终端接收到的无线交流功率信号的实际电压，a为调整系数。
在一种可能的实现方式中，如图6所示，该装置还可以包括类型确定模块43和第二控制模块44。该类型确定模块43被配置为当无线充电装置中不包含降压式变换电路时，确定与无线充电装置连接的充电器的类型。该第二控制模块44被配置为当所确定的类型的充电器不具有电压调整功能时，根据功率调整值对无线交流功率信号的输出频率和占空比中的至少一项进行调整，以调整无线交流功率信号的输出功率。
本公开实施例所提供的无线充电装置的控制装置，可以在满足终端的电池负载功率需求变化的同时，保证为终端进行无线充电效率，且避免了大功率充电过程中终端发热严重情况的发生，适用范围广泛。
需要说明的是，尽管以上述实施例作为示例介绍了无线充电装置的控制装置示例如上，但本领域技术人员能够理解，本公开应不限于此。事实上，用户完全可根据个人喜好和/或实际应用场景灵活设定各模块，只要符合本公开的技术方案即可。
本公开实施例还提出一种无线充电装置，其包括上述无线充电装置的控制装置。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (11)

  1. 一种无线充电装置的控制方法，其特征在于，应用于无线充电装置，所述无线充电装置将充电器提供的直流功率信号转换为无线交流功率信号，以对终端进行无线充电，所述方法包括：
    接收所述终端发送的功率调整值，所述功率调整值表示终端接收到的无线交流功率信号的实际电压与目标电压之间的差异；
    根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
  2. 根据权利要求1所述的方法，其特征在于，根据所述功率调整值确定对所述无线交流功率信号的输出电压和输出频率中的至少一项所进行的调整，以调整所述无线交流功率信号的输出功率，包括：
    在所述功率调整值表示所述实际电压小于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以提高所述无线交流功率信号的输出功率；
    在所述功率调整值表示所述实际电压大于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以降低所述无线交流功率信号的输出功率。
  3. 根据权利要求1或2所述的方法，其特征在于，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，包括以下至少一项：
    在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压小于电压限值时，提高所述无线交流功率信号的输出电压；
    在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压等于电压限值时，降低所述无线交流功率信号的输出频率；
    在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率小于频率限值时，提高所述无线交流功率信号的输出频率；
    在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率等于频率限值时，降低所述无线交流功率信号的输出电压。
  4. 根据权利要求1或2所述的方法，其特征在于，所述功率调整值通过式1表示，
    Figure PCTCN2019090408-appb-100001
    其中，CEP value为所述功率调整值，V target为所述终端所接收到的无线交流功率信号的目标电压，V rect为所述终端接收到的无线交流功率信号的实际电压，a为调整系数。
  5. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    当所述无线充电装置中不包含降压式变换电路时，确定与所述无线充电装置连接的充电器的类型；
    当所确定的类型的充电器不具有电压调整功能时，根据所述功率调整值对所述无线交流功率信号的输出频率和占空比中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
  6. 一种无线充电装置的控制装置，其特征在于，应用于无线充电装置，所述无线充电装置将充电器提供的直流功率信号转换为无线交流功率信号，以对终端进行无线充电，所述装置包括：
    调整值接收模块，接收所述终端发送的功率调整值，所述功率调整值表示终端接收到的无线交流功率信号的实际电压与目标电压之间的差异；
    第一控制模块，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
  7. 根据权利要求6所述的装置，其特征在于，所述第一控制模块，包括：
    提高功率子模块，在所述功率调整值表示所述实际电压小于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以提高所述无线交流功率信号的输出功率；
    降低功率子模块，在所述功率调整值表示所述实际电压大于所述目标电压时，根据所述功率调整值对所述无线交流功率信号的输出电压和输出频率中的至少一项进行调整，以降低所述无线交流功率信号的输出功率。
  8. 根据权利要求6或7所述的装置，其特征在于，第一控制模块，包括以下至少一个子模块：
    升压子模块，在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压小于电压限值时，提高所述无线交流功率信号的输出电压；
    降频子模块，在所述功率调整值表示所述实际电压小于所述目标电压、且所述无线交流功率信号的输出电压等于电压限值时，降低所述无线交流功率信号的输出频率；
    升频子模块，在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率小于频率限值时，提高所述无线交流功率信号的输出频率；
    降压子模块，在所述功率调整值表示所述实际电压大于所述目标电压、且所述无线交流功率信号的输出频率等于频率限值时，降低所述无线交流功率信号的输出电压。
  9. 根据权利要求6或7所述的装置，其特征在于，所述功率调整值通过式1表示，
    Figure PCTCN2019090408-appb-100002
    其中，CEP value为所述功率调整值，V target为所述终端所接收到的无线交流功率信号的目标电压，V rect为所述终端接收到的无线交流功率信号的实际电压，a为调整系数。
  10. 根据权利要求6或7所述的装置，其特征在于，所述装置还包括：
    类型确定模块，当所述无线充电装置中不包含降压式变换电路时，确定与所述无线充电装置连接的充电器的类型；
    第二控制模块，当所确定的类型的充电器不具有电压调整功能时，根据所述功率调整值对所述无线交流功率信号的输出频率和占空比中的至少一项进行调整，以调整所述无线交流功率信号的输出功率。
  11. 一种无线充电装置，其特征在于，包括根据权利要求6-10中任一项所述的控制装置。
PCT/CN2019/090408 2018-11-30 2019-06-06 无线充电装置的控制方法、装置以及无线充电装置 Ceased WO2020107855A1 (zh)

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