CN112671232A - LLC resonant circuit control method and device and terminal equipment - Google Patents
LLC resonant circuit control method and device and terminal equipment Download PDFInfo
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- CN112671232A CN112671232A CN202011554438.6A CN202011554438A CN112671232A CN 112671232 A CN112671232 A CN 112671232A CN 202011554438 A CN202011554438 A CN 202011554438A CN 112671232 A CN112671232 A CN 112671232A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention is suitable for the technical field of circuit control, and provides a control method and a device of an LLC resonant circuit and terminal equipment, wherein the method comprises the following steps: acquiring output voltage and output current of an LLC resonant circuit, and acquiring a voltage given value of the LLC resonant circuit; calculating the current variation according to the output current of the current sampling period and the output current of the previous sampling period; calculating a voltage deviation value according to the output voltage and the given voltage value; and calculating a target control quantity according to the current variation and the voltage deviation value, and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity. The current variation of two preceding and back sampling periods is considered, the target control quantity can be adjusted in real time according to load variation, and therefore the dynamic response capacity of the LLC resonant circuit is improved.
Description
Technical Field
The invention belongs to the technical field of circuit control, and particularly relates to a control method and device of an LLC resonant circuit and terminal equipment.
Background
With the development of switching power supply technology, high efficiency and high power density are becoming development trends. Under the circumstances, the LLC resonant circuit is applied more and more widely in the industry, and the quality demand of the LLC resonant circuit is higher and higher in the industry.
As one of the important indicators for evaluating the LLC resonant circuit, the dynamic response capability has been an improvement direction of the LLC resonant circuit. In order to improve the dynamic response capability of the LLC resonant circuit, a control algorithm is usually designed based on the principle of adaptive PID in the prior art, and the control algorithm automatically completes the switching of PID parameters according to the working condition of the circuit, so that the circuit always works in the optimal working state. But the method has poor adaptability of PID parameters in practical application, so the dynamic response capability is still poor.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for controlling an LLC resonant circuit, and a terminal device, so as to solve the problem that a dynamic response capability of an LLC resonant circuit in the prior art is poor.
A first aspect of an embodiment of the present invention provides a method for controlling an LLC resonant circuit, including:
acquiring output voltage and output current of an LLC resonant circuit, and acquiring a voltage given value of the LLC resonant circuit;
calculating the current variation according to the output current of the current sampling period and the output current of the previous sampling period;
calculating a voltage deviation value according to the output voltage and the given voltage value;
and calculating a target control quantity according to the current variation and the voltage deviation value, and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity.
A second aspect of an embodiment of the present invention provides a control apparatus for an LLC resonant circuit, including:
the data acquisition module is used for acquiring the output voltage and the output current of the LLC resonant circuit and acquiring the voltage given value of the LLC resonant circuit;
the current variation calculating module is used for calculating current variation according to the output current of the current sampling period and the output current of the previous sampling period;
the voltage deviation value calculating module is used for calculating a voltage deviation value according to the output voltage and the given voltage value;
and the PWM signal generation module is used for calculating a target control quantity according to the current variation and the voltage deviation value and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity.
A third aspect of embodiments of the present invention provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the control method of the LLC resonant circuit as described above when executing the computer program.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method for controlling an LLC resonant circuit as described above.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the control method of the LLC resonant circuit provided in this embodiment first acquires the output voltage and output current of the LLC resonant circuit, and obtains the voltage given value of the LLC resonant circuit; then, calculating the current variation according to the output current of the current sampling period and the output current of the previous sampling period; calculating a voltage deviation value according to the output voltage and the given voltage value; and finally, calculating a target control quantity according to the current variation and the voltage deviation value, and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity. In the embodiment, the target control quantity can be adjusted in real time according to the load change by considering the current change quantities of the front sampling period and the rear sampling period, so that the dynamic response capability of the LLC resonant circuit is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a control method of an LLC resonant circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a control apparatus of an LLC resonant circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
In one embodiment, fig. 1 shows a flow of implementing a control method of an LLC resonant circuit, the process of which is detailed as follows:
s101: acquiring output voltage and output current of an LLC resonant circuit, and acquiring a voltage given value of the LLC resonant circuit;
s102: calculating the current variation according to the output current of the current sampling period and the output current of the previous sampling period;
s103: calculating a voltage deviation value according to the output voltage and the given voltage value;
s104: and calculating a target control quantity according to the current variation and the voltage deviation value, and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity.
As can be seen from the foregoing embodiments, the control method for the LLC resonant circuit provided in this embodiment first acquires the output voltage and the output current of the LLC resonant circuit, and obtains the voltage set value of the LLC resonant circuit; then, calculating the current variation according to the output current of the current sampling period and the output current of the previous sampling period; calculating a voltage deviation value according to the output voltage and the given voltage value; and finally, calculating a target control quantity according to the current variation and the voltage deviation value, and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity. In the embodiment, the target control quantity can be adjusted in real time according to the load change by considering the current change quantities of the front sampling period and the rear sampling period, so that the dynamic response capability of the LLC resonant circuit is improved.
In one embodiment, the specific implementation flow of S102 in fig. 1 includes:
and subtracting the output current of the previous sampling period from the output current of the current sampling period to obtain the current variation.
In this embodiment, since the output current changes when the load changes, the change amount of the load can be reflected according to the change amount of the output current, and then the PWM signal for controlling the LLC resonant circuit is calculated according to the change amount of the output current, so as to improve the load dynamic response of the LLC resonant circuit.
In one embodiment, the specific implementation process of S103 in fig. 1 includes:
and subtracting the output voltage from the given voltage value to obtain the voltage deviation value.
In one embodiment, the specific implementation flow of S104 in fig. 1 includes:
s201: calculating a first control quantity according to the current variation and a first preset coefficient;
s202: inputting the voltage deviation value into a PI controller to obtain a second control quantity;
s203: and adding the first control quantity and the second control quantity to obtain the target control quantity.
In this embodiment, the first predetermined coefficient is a positive number.
Specifically, when the load suddenly rises, the output voltage decreases and the output current increases, so that the current change amount becomes a positive value, and when the load suddenly rises, a first control amount obtained from the current change amount is added to the voltage control loop, and the target control amount can be increased, so that the duty ratio of the PWM signal can be increased to adjust the decreased output voltage upward. If the load suddenly drops, the output voltage rises, and the output current drops, so that the current variation is a negative value, and the first control quantity obtained according to the current variation is added into the voltage control loop when the load suddenly drops, so that the target control quantity can be reduced, the duty ratio of the PWM signal can be reduced, and the rising output voltage can be adjusted to be low. Based on the above process, the method provided by this embodiment can effectively stabilize the output voltage at the preset voltage value, thereby improving the dynamic response capability of the LLC resonant circuit.
In an embodiment, the specific implementation flow of S201 includes:
and multiplying the current variation by the first preset coefficient to obtain the first control quantity.
In an embodiment, the specific implementation flow of S201 includes:
calculating an absolute value of the current change quantity to obtain an absolute value of the current change;
multiplying the absolute value of the current change by the current change to obtain a third control quantity;
and multiplying the third control quantity by the first preset coefficient to obtain the first control quantity.
In this embodiment, a value of the first preset coefficient may be determined through an experiment, specifically, a plurality of experiment preset coefficients are set, after the third control quantity is obtained, the third control quantity is multiplied by each experiment preset coefficient to obtain a corresponding first control quantity, then a target control quantity is calculated according to each first control quantity, and finally, an output voltage waveform corresponding to the LLC resonant circuit under control of each experiment preset coefficient is collected. And if the experiment preset coefficient meeting the preset condition exists, taking the experiment preset coefficient meeting the preset condition as a first preset coefficient. The preset condition is that the time period in which the deviation value of the output voltage and the given voltage in the output voltage waveform adjusted by the experiment preset coefficient is larger than the preset deviation value is smaller than the preset time length.
Optionally, the preset deviation value is 5% of the given voltage, and the preset time period may be 200 us.
Further, if the number of the experimental preset coefficients meeting the preset condition is greater than 1, the experimental preset coefficient with the shortest time period in which the deviation value of the output voltage and the given voltage in the output voltage waveform is greater than the preset deviation value is selected as the first preset coefficient from the experimental preset coefficients meeting the preset condition.
In this embodiment, after the first control amount is obtained, the first control amount may be subjected to clipping processing, and then the second control amount and the clipped first control amount may be added to obtain the target control amount.
In an embodiment of the invention, if the absolute value of the current variation is smaller than a preset current deviation, the first control amount is set to zero. When the load change of the LLC resonant circuit is not large, the LLC resonant circuit is controlled according to the original control method, so that the control process is simplified, and the control response speed of the LLC resonant circuit is improved.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In one embodiment, as illustrated in fig. 2, fig. 2 shows a structure of a control apparatus 100 of an LLC resonant circuit, comprising:
the data acquisition module 110 is configured to acquire an output voltage and an output current of the LLC resonant circuit, and acquire a voltage given value of the LLC resonant circuit;
a current variation calculating module 120, configured to calculate a current variation according to the output current of the current sampling period and the output current of the previous sampling period;
a voltage deviation value calculating module 130, configured to calculate a voltage deviation value according to the output voltage and the given voltage value;
and a PWM signal generating module 140, configured to calculate a target control amount according to the current variation and the voltage deviation value, and generate a PWM signal for controlling the LLC resonant circuit according to the target control amount.
In one embodiment, the current variation calculating module 120 is specifically configured to:
and subtracting the output current of the previous sampling period from the output current of the current sampling period to obtain the current variation.
In one embodiment, the voltage deviation value calculation module 130 in fig. 2 includes:
and subtracting the output voltage from the given voltage value to obtain the voltage deviation value.
In one embodiment, the PWM signal generation module 140 of fig. 2 includes:
the first control quantity calculating unit is used for calculating a first control quantity according to the current variation and a first preset coefficient;
the second control quantity calculating unit is used for inputting the voltage deviation value into the PI controller to obtain a second control quantity;
and the target control amount calculating unit is used for adding the first control amount and the second control amount to obtain the target control amount.
In one embodiment, the first control amount calculating unit specifically includes:
and multiplying the current variation by the first preset coefficient to obtain the first control quantity.
In one embodiment, the first control amount calculating unit specifically includes:
calculating an absolute value of the current change quantity to obtain an absolute value of the current change;
multiplying the absolute value of the current change by the current change to obtain a third control quantity;
and multiplying the third control quantity by the first preset coefficient to obtain the first control quantity.
Fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 3, the terminal device 3 of this embodiment includes: a processor 30, a memory 31 and a computer program 32 stored in said memory 31 and executable on said processor 30. The processor 30, when executing the computer program 32, implements the steps in the various method embodiments described above, such as the steps 101 to 104 shown in fig. 1. Alternatively, the processor 30, when executing the computer program 32, implements the functions of each module/unit in the above-mentioned device embodiments, such as the functions of the modules 110 to 140 shown in fig. 2.
The computer program 32 may be divided into one or more modules/units, which are stored in the memory 31 and executed by the processor 30 to accomplish the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 32 in the terminal device 3.
The terminal device 3 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 30, a memory 31. It will be understood by those skilled in the art that fig. 3 is only an example of the terminal device 3, and does not constitute a limitation to the terminal device 3, and may include more or less components than those shown, or combine some components, or different components, for example, the terminal device may also include an input-output device, a network access device, a bus, etc.
The Processor 30 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be an internal storage unit of the terminal device 3, such as a hard disk or a memory of the terminal device 3. The memory 31 may also be an external storage device of the terminal device 3, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the terminal device 3. The memory 31 is used for storing the computer program and other programs and data required by the terminal device. The memory 31 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A method of controlling an LLC resonant circuit, comprising:
acquiring output voltage and output current of an LLC resonant circuit, and acquiring a voltage given value of the LLC resonant circuit;
calculating the current variation according to the output current of the current sampling period and the output current of the previous sampling period;
calculating a voltage deviation value according to the output voltage and the given voltage value;
and calculating a target control quantity according to the current variation and the voltage deviation value, and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity.
2. The method for controlling the LLC resonant circuit of claim 1, wherein said calculating the amount of current change based on the output current of the current sampling period and the output current of the previous sampling period comprises:
and subtracting the output current of the previous sampling period from the output current of the current sampling period to obtain the current variation.
3. The method of claim 1, wherein said calculating a voltage offset value based on said output voltage and said given voltage value comprises:
and subtracting the output voltage from the given voltage value to obtain the voltage deviation value.
4. The method of claim 1, wherein calculating a target control amount according to the current variation and the voltage deviation value comprises:
calculating a first control quantity according to the current variation and a first preset coefficient;
inputting the voltage deviation value into a PI controller to obtain a second control quantity;
and adding the first control quantity and the second control quantity to obtain the target control quantity.
5. The method for controlling the LLC resonant circuit of claim 4, wherein said calculating the first control quantity according to the current variation and the first preset coefficient comprises:
and multiplying the current variation by the first preset coefficient to obtain the first control quantity.
6. The method for controlling the LLC resonant circuit of claim 4, wherein said calculating the first control quantity according to the current variation and the first preset coefficient comprises:
calculating an absolute value of the current change quantity to obtain an absolute value of the current change;
multiplying the absolute value of the current change by the current change to obtain a third control quantity;
and multiplying the third control quantity by the first preset coefficient to obtain the first control quantity.
7. A control apparatus for an LLC resonant circuit, comprising:
the data acquisition module is used for acquiring the output voltage and the output current of the LLC resonant circuit and acquiring the voltage given value of the LLC resonant circuit;
the current variation calculating module is used for calculating current variation according to the output current of the current sampling period and the output current of the previous sampling period;
the voltage deviation value calculating module is used for calculating a voltage deviation value according to the output voltage and the given voltage value;
and the PWM signal generation module is used for calculating a target control quantity according to the current variation and the voltage deviation value and generating a PWM signal for controlling the LLC resonant circuit according to the target control quantity.
8. The apparatus of claim 7, wherein the current variation calculating module is specifically configured to:
and subtracting the output current of the previous sampling period from the output current of the current sampling period to obtain the current variation.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, in 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 6.
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| CN202011554438.6A CN112671232B (en) | 2020-12-24 | 2020-12-24 | LLC resonant circuit control method and device and terminal equipment |
| PCT/CN2021/140309 WO2022135440A1 (en) | 2020-12-24 | 2021-12-22 | Llc resonant circuit control method and control apparatus, and terminal device |
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| CN202011554438.6A CN112671232B (en) | 2020-12-24 | 2020-12-24 | LLC resonant circuit control method and device and terminal equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113115992A (en) * | 2021-04-26 | 2021-07-16 | 东莞市众易创芯电子有限公司 | Current output control method, device and equipment of electronic cigarette and storage medium |
| WO2022135440A1 (en) * | 2020-12-24 | 2022-06-30 | 漳州科华技术有限责任公司 | Llc resonant circuit control method and control apparatus, and terminal device |
| CN114859798A (en) * | 2022-07-06 | 2022-08-05 | 广东舜势测控设备有限公司 | Control circuit, control method thereof, controller, and computer-readable storage medium |
Families Citing this family (1)
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| CN116937712A (en) * | 2023-07-25 | 2023-10-24 | 湖北华中电力科技开发有限责任公司 | Intelligent operation and maintenance device and method based on electric power information analysis |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577494A (en) * | 2008-05-09 | 2009-11-11 | 台达电子工业股份有限公司 | Synchronous rectification circuit with intermittent mode controller and control method thereof |
| CN101577434A (en) * | 2009-06-19 | 2009-11-11 | 哈尔滨工业大学 | Control method of restraining output DC component of grid-connected photovoltaic inverter |
| CN109995236A (en) * | 2017-12-29 | 2019-07-09 | 东南大学 | A kind of control system of LLC transducer synchronous rectification pipe |
| TW201947860A (en) * | 2018-05-16 | 2019-12-16 | 台達電子工業股份有限公司 | Power conversion circuit and control method of power conversion circuit |
| CN111010041A (en) * | 2019-12-04 | 2020-04-14 | 厦门市爱维达电子有限公司 | LLC conversion efficiency optimization method |
| CN111176112A (en) * | 2020-01-07 | 2020-05-19 | 深圳市康灿新能源科技有限公司 | Improved PID control algorithm for dynamically adjusting upper limit value of integral |
| CN111464019A (en) * | 2020-04-09 | 2020-07-28 | 石家庄通合电子科技股份有限公司 | Method and device for optimizing LL C resonant converter load transient dynamics |
| CN111509981A (en) * | 2019-12-30 | 2020-08-07 | 中国船舶重工集团公司第七0九研究所 | Frequency self-adaptive control method and system of LL C resonant converter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277922B (en) * | 2019-05-17 | 2020-07-21 | 杭州电子科技大学 | LL C primary side constant current control device and compensation current signal extraction method |
| US10826402B1 (en) * | 2019-09-05 | 2020-11-03 | Semiconductor Components Industries, Llc | Methods and systems of controlling switching frequency of LLC resonant power converters |
| CN111726008B (en) * | 2020-07-03 | 2022-01-14 | 科华恒盛股份有限公司 | Resonant LLC converter and working state control method thereof |
| CN112671232B (en) * | 2020-12-24 | 2022-01-14 | 漳州科华技术有限责任公司 | LLC resonant circuit control method and device and terminal equipment |
-
2020
- 2020-12-24 CN CN202011554438.6A patent/CN112671232B/en active Active
-
2021
- 2021-12-22 WO PCT/CN2021/140309 patent/WO2022135440A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577494A (en) * | 2008-05-09 | 2009-11-11 | 台达电子工业股份有限公司 | Synchronous rectification circuit with intermittent mode controller and control method thereof |
| CN101577434A (en) * | 2009-06-19 | 2009-11-11 | 哈尔滨工业大学 | Control method of restraining output DC component of grid-connected photovoltaic inverter |
| CN109995236A (en) * | 2017-12-29 | 2019-07-09 | 东南大学 | A kind of control system of LLC transducer synchronous rectification pipe |
| TW201947860A (en) * | 2018-05-16 | 2019-12-16 | 台達電子工業股份有限公司 | Power conversion circuit and control method of power conversion circuit |
| CN111010041A (en) * | 2019-12-04 | 2020-04-14 | 厦门市爱维达电子有限公司 | LLC conversion efficiency optimization method |
| CN111509981A (en) * | 2019-12-30 | 2020-08-07 | 中国船舶重工集团公司第七0九研究所 | Frequency self-adaptive control method and system of LL C resonant converter |
| CN111176112A (en) * | 2020-01-07 | 2020-05-19 | 深圳市康灿新能源科技有限公司 | Improved PID control algorithm for dynamically adjusting upper limit value of integral |
| CN111464019A (en) * | 2020-04-09 | 2020-07-28 | 石家庄通合电子科技股份有限公司 | Method and device for optimizing LL C resonant converter load transient dynamics |
Non-Patent Citations (2)
| Title |
|---|
| 方宇，等: ""基于预测电流控制的三相高功率因数PWM整流器研究"", 《中国电机工程学报》 * |
| 李哲，等: ""并联有源滤波器两步预测控制方法研究"", 《电机与控制学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022135440A1 (en) * | 2020-12-24 | 2022-06-30 | 漳州科华技术有限责任公司 | Llc resonant circuit control method and control apparatus, and terminal device |
| CN113115992A (en) * | 2021-04-26 | 2021-07-16 | 东莞市众易创芯电子有限公司 | Current output control method, device and equipment of electronic cigarette and storage medium |
| CN113115992B (en) * | 2021-04-26 | 2022-11-22 | 东莞市众易创芯电子有限公司 | Current output control method, device and equipment of electronic cigarette and storage medium |
| CN114859798A (en) * | 2022-07-06 | 2022-08-05 | 广东舜势测控设备有限公司 | Control circuit, control method thereof, controller, and computer-readable storage medium |
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| CN112671232B (en) | 2022-01-14 |
| WO2022135440A1 (en) | 2022-06-30 |
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