CN112821772B - Self-adaptive loop control system, control method and switching power supply - Google Patents
Self-adaptive loop control system, control method and switching power supply Download PDFInfo
- Publication number
- CN112821772B CN112821772B CN202110093483.4A CN202110093483A CN112821772B CN 112821772 B CN112821772 B CN 112821772B CN 202110093483 A CN202110093483 A CN 202110093483A CN 112821772 B CN112821772 B CN 112821772B
- Authority
- CN
- China
- Prior art keywords
- module
- current
- power supply
- oscillator
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
-
- 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 discloses a self-adaptive loop control system, a control method and a switching power supply, wherein the self-adaptive loop control system comprises a current sampling module, a current comparator module, a control loop module, an oscillator module and a peak controller module, wherein the current sampling module samples the current of an auxiliary winding flowing through a resistor, then compares the sampled current with a set threshold current, transmits a comparison result into a control loop, and after receiving the signal, the control loop module adjusts the frequency of the oscillator module, the threshold of the peak controller module and the like; the invention can accurately adjust the frequency of the oscillator module and the threshold value of the peak controller module according to different output voltages, realize self-adaptive loop control, eliminate loop noise and the like.
Description
Technical Field
The present invention relates to the field of circuit protection, and more particularly, to an adaptive loop control system, a control method, and a switching power supply.
Background
With the rapid development of integrated circuits, flyback switching power supplies are commonly used in power supplies, and with the continuous progress of electronic technology, the requirements on power supplies are higher and higher, and particularly in the rapid development of the rapid charging industry in recent years, the output needs to be compatible with a plurality of output voltages, the voltage span is very large, and the output power span is also very large, so that the loop instability phenomenon can occur in the loop control of a system under certain output voltages or certain load states, and the phenomenon of serious noise exists during the system operation, which also has certain influence on our lives.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a self-adaptive loop control system, a control method and a switching power supply, so that a system loop is effectively controlled, the loop is more stable, the loop noise is eliminated, and the like.
The purpose of the invention is realized by the following scheme:
the self-adaptive loop control system comprises a current sampling module, a current comparator module, a control loop module, an oscillator module and a peak controller module;
the current sampling module is used for sampling the current flowing out of the auxiliary winding end;
the current comparator module is used for comparing the sampling signal of the current sampling module with a set current threshold;
the control loop module analyzes the result of the current comparator module and is used for adjusting the frequency of the oscillator module and the threshold value of the peak controller module;
the oscillator module is used for controlling the working frequency of the switching power supply system;
and the peak controller module is used for controlling the power of the switch power supply system.
Further, the current sampling module is used for sampling the current flowing through the resistor at the auxiliary winding end.
Furthermore, the input port of the current comparator module is connected to the output port of the current sampling module, and the output port of the current comparator module is connected to the control loop module.
Furthermore, the control loop module comprises two input ports, wherein one input port is connected with the current comparator module, the other input port is connected with the output port of the photoelectric coupler, and the output port of the control loop module is respectively connected with the oscillator module and the peak controller module.
Furthermore, the peak controller module comprises two input ports, a first input port of the peak controller module is connected with the voltage value of the primary inductor peak current sampling resistor, a second input port of the peak controller module is connected with the output end of the control loop module, and the output end of the peak controller module is connected to the driving circuit module, so that the power of the whole power supply system is controlled.
Furthermore, the input end of the oscillator module is connected to the output end of the control loop module, and the output end of the oscillator module is connected to the driving circuit module.
The self-adaptive loop control method comprises the following steps:
s1, sampling current flowing out of an auxiliary winding end through a current sampling module in a turn-off period of a switching power supply;
s2, comparing the sampling current in the step S1 with a set current threshold value through a current comparator module;
s3, analyzing the result of the current comparator module and the photoelectric coupling signal in the step S2 through the control loop module so as to obtain an output voltage state and a load state, and controlling the working frequency of the oscillator module and adjusting the threshold of the peak controller according to the obtained output voltage state and the load state;
s4, the oscillator module controls the working frequency of the whole system by receiving the signal of the control loop module; the peak controller module controls the voltage on the primary inductor peak current sampling resistor by receiving the signal of the control loop module, and then output power adjustment is carried out.
Further, in step S1, the current flowing through the resistor of the auxiliary winding is sampled by the current sampling module.
A switching power supply employing any of the adaptive loop control systems described above; or to perform an adaptive loop control method as described in any of the above.
Further, the switching power supply includes a flyback switching power supply.
The beneficial effects of the invention are:
(1) The invention can accurately adjust the frequency of the oscillator and the peak value controller according to different output voltages, thereby realizing self-adaptive loop control; specifically, the current flowing out of the auxiliary winding end is detected, and the output voltage state is judged through the current, so that the system working frequency and the peak value controller are accurately adjusted, the loop of the whole system is effectively controlled, the loop is stable, and the loop noise is eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an adaptive loop control system of the present invention;
FIG. 2 is a flow chart of the steps of the control method of the present invention.
Detailed Description
All features disclosed in all embodiments of the present specification, or all methods or process steps implicitly disclosed, may be combined and/or expanded, or substituted, in any way, except for mutually exclusive features and/or steps.
The self-adaptive loop control system comprises a current sampling module, a current comparator module, a control loop module, an oscillator module and a peak controller module;
the current sampling module is used for sampling the current flowing out of the auxiliary winding end;
the current comparator module is used for comparing a sampling signal of the current sampling module with a set current threshold;
the control loop module analyzes the result of the current comparator module and is used for adjusting the frequency of the oscillator module and the threshold value of the peak controller module;
the oscillator module is used for controlling the working frequency of the switching power supply system;
and the peak controller module is used for controlling the power of the switching power supply system.
Further, the current sampling module is used for sampling the current flowing through the resistor at the auxiliary winding end.
Furthermore, the input port of the current comparator module is connected to the output port of the current sampling module, and the output port of the current comparator module is connected to the control loop module.
Furthermore, the control loop module comprises two input ports, wherein one input port is connected with the current comparator module, the other input port is connected with the output port of the photoelectric coupler, and the output port of the control loop module is respectively connected with the oscillator module and the peak controller module.
Furthermore, the peak controller module comprises two input ports, a first input port of the peak controller module is connected with the voltage value of the primary inductor peak current sampling resistor, a second input port of the peak controller module is connected with the output end of the control loop module, and the output end of the peak controller module is connected to the driving circuit module, so that the power of the whole power supply system is controlled.
Furthermore, the input end of the oscillator module is connected with the output end of the control loop module, and the output end of the oscillator module is connected to the driving circuit module.
The self-adaptive loop control method comprises the following steps:
s1, sampling current flowing out of an auxiliary winding end through a current sampling module in a turn-off period of a switching power supply;
s2, comparing the sampling current in the step S1 with a set current threshold value through a current comparator module;
s3, analyzing the result of the current comparator module and the photoelectric coupling signal in the step S2 through the control loop module so as to obtain an output voltage state and a load state, and controlling the working frequency of the oscillator module and adjusting the threshold value of the peak controller according to the obtained output voltage state and the load state;
s4, the oscillator module controls the working frequency of the whole system by receiving a signal of the control loop module; the peak controller module controls the voltage on the primary inductor peak current sampling resistor by receiving the signal of the control loop module, and then output power adjustment is carried out.
Further, in step S1, the current flowing through the resistor of the auxiliary winding is sampled by the current sampling module.
A switching power supply employing any of the adaptive loop control systems described above; or perform any of the adaptive loop control methods described above.
Further, the switching power supply includes a flyback switching power supply.
The working process of the embodiment of the invention comprises the following steps: and the current sampling module is used for sampling the current flowing through the resistor by the auxiliary winding, then the current is compared with the threshold current set by the current comparator, then the comparison result is transmitted to the control loop module, and the control loop module adjusts the frequency of the oscillator module and the threshold of the peak controller module after receiving the signal. Because the voltage of the auxiliary winding end is in direct proportion to the output voltage in the demagnetization time of the turn-off period of the switching power supply system, and the proportional relation is determined by the turn ratio of the transformer, the current comparator can accurately reflect the state of the output voltage, so that the system provided by the embodiment of the invention can accurately adjust the frequency of the oscillator and the peak value controller according to different output voltages, thereby realizing self-adaptive loop control.
According to the embodiment of the invention, the current flowing out of the auxiliary winding end is detected, and the output voltage state is judged through the current, so that the working frequency and power of the switching power supply system are adjusted, the loop of the whole system is effectively controlled, and the loop is more stable.
In other embodiments of the present invention, an adaptive loop control system applied in a flyback switching power supply is provided, in which a current flowing out from an auxiliary winding end of the flyback switching power supply is detected, and an output voltage state is determined according to the current, so as to adjust an operating frequency and power of the flyback switching power supply system, thereby stabilizing the whole flyback switching power supply system. As shown in fig. 1, an adaptive loop control system applied to a flyback switching power supply includes a current sampling module, a current comparator module, a control loop module, an oscillator module, a peak controller module, and the like, where the current sampling module is used for sampling a current I flowing from an auxiliary winding end PRT Sampling is carried out; the current comparator module is used for comparing a sampling signal of the current sampling module with a current threshold value set by a system, the input end of the current comparator module is connected with the current sampling module, and the output end of the current comparator module is connected with the control loop module; the control loop module analyzes the result of the current comparator module so as to adjust the frequency of the oscillator module and the threshold value of the peak controller module; the control loop module has two input ports, one of which is connected with the current comparator module, and the other is connected with the output end V of the photoelectric coupler FB The output port of the control loop module is connected with the oscillator module and the peak controller module; the oscillator module is a working frequency controller of the whole power supply system, the input end of the oscillator module is connected with the output end of the control loop module, and the output end of the oscillator module is connected to the driving circuit module; peak controller moduleThe block is used for detecting the voltage value of the primary inductor peak current sampling resistor so as to control the power of the whole power supply system, the input end of the block is connected with the output end of the control loop module, and the output end of the block is connected with the driving circuit module.
Because the voltage of the auxiliary winding end is in direct proportion to the output voltage in the demagnetization time of the turn-off period of the flyback switching power supply, and the proportional relation is determined by the turn ratio of the transformer, the current comparator module can be prepared to reflect the state of the output voltage. Therefore, the embodiment of the invention utilizes the characteristic to detect the output voltage and realizes the self-adaptive loop control through the internal control of the system.
In other embodiments of the present invention, as shown in fig. 2, there is also provided an adaptive loop control method, including the steps of:
s1, sampling current flowing out of an auxiliary winding end through a current sampling module in a turn-off period of a switching power supply;
s2, comparing the sampling current in the step S1 with the set current threshold value through a current comparator module;
s3, analyzing the result of the current comparator module and the photoelectric coupling signal in the step S2 through a control loop module, so as to obtain the output voltage state and the load state and determine the working frequency and the peak value controller of the oscillator;
s4, the oscillator module controls the working frequency of the whole system by receiving a signal of the control loop module;
and S5, the peak controller module controls the voltage on the primary inductor peak current sampling resistor by receiving a signal of the control loop module, so as to adjust the output power.
According to the embodiment of the invention, the current flowing out of the auxiliary winding end is utilized, and the output voltage state is detected through the current, so that the working frequency and the power of the system are adjusted, and the self-adaptive loop control fails.
In order to better illustrate the working state of the system and the technical effect thereof according to the embodiment of the present invention, the following examples are illustrated:
when a fast charger is connected to a device, the charger adjusts output voltage by detecting the state of the device, when the output voltage is 5V, the current flowing through the auxiliary winding is I1, and at the moment, the output state is judged by comparing the I1 with a threshold value set in the current comparator, so that the frequency of the oscillator and the peak value controller are adjusted to corresponding values. Similarly, if a fast charger supports states of 9v,12v, etc. simultaneously, after the embodiment of the present invention detects corresponding output voltages, corresponding operating frequencies and peak controllers are adjusted according to different states, so that the loop of the whole system adjusts different loop gains according to different output voltages, the whole system is more stable, and loop noise is eliminated.
The functionality of the present invention, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium, and all or part of the steps of the method according to the embodiments of the present invention are executed in a computer device (which may be a personal computer, a server, or a network device) and corresponding software. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, or an optical disk, exist in a read-only Memory (RAM), a Random Access Memory (RAM), and the like, for performing a test or actual data in a program implementation.
Claims (5)
1. The self-adaptive loop control system is characterized in that the working frequency and power of the switching power supply system are adjusted by detecting the current flowing out of the auxiliary winding end and judging the output voltage state through the current, so that the loop of the whole system is effectively controlled, and the loop is more stable; the device comprises a current sampling module, a current comparator module, a control loop module, an oscillator module and a peak controller module;
the current sampling module is used for sampling the current flowing through the resistor and flowing out of the auxiliary winding end;
the current comparator module is used for comparing the sampling signal of the current sampling module with a set current threshold; the input port of the current comparator module is connected with the output port of the current sampling module, and the output port of the current comparator module is connected with the control loop module;
the control loop module analyzes the result of the current comparator module and is used for adjusting the frequency of the oscillator module and the threshold value of the peak controller module; the control loop module comprises two input ports, wherein one input port is connected with the current comparator module, the other input port is connected with the output port of the photoelectric coupler, and the output port of the control loop module is respectively connected with the oscillator module and the peak controller module;
the oscillator module is used for controlling the working frequency of the switching power supply system; the input end of the oscillator module is connected with the output end of the control loop module, and the output end of the oscillator module is connected to the driving circuit module;
the peak controller module is used for controlling the power of the switching power supply system; the peak controller module comprises two input ports, the first input port of the peak controller module is connected with the voltage value of the primary inductor peak current sampling resistor, the second input port of the peak controller module is connected with the output end of the control loop module, and the output end of the peak controller module is connected to the driving circuit module, so that the power of the whole power supply system is controlled;
the oscillator module is a working frequency controller of the whole power supply system, the input end of the oscillator module is connected with the output end of the control loop module, and the output end of the oscillator module is connected to the driving circuit module; the peak controller module detects the voltage value of the primary inductor peak current sampling resistor so as to control the power of the whole power supply system, the input end of the peak controller module is connected with the output end of the control loop module, and the output end of the peak controller module is connected with the driving circuit module.
2. An adaptive loop control method, based on the adaptive loop control system according to claim 1, further comprising the steps of:
s1, sampling current flowing out of an auxiliary winding end through a current sampling module in a turn-off period of a switching power supply system;
s2, comparing the sampling current in the step S1 with a set current threshold value through a current comparator module;
s3, analyzing the result of the current comparator module and the photoelectric coupling signal in the step S2 through the control loop module so as to obtain an output voltage state and a load state, and controlling the working frequency of the oscillator module and adjusting the threshold of the peak controller according to the obtained output voltage state and the load state;
s4, the oscillator module controls the working frequency of the whole system by receiving the signal of the control loop module; the peak controller module controls the voltage on the primary inductor peak current sampling resistor by receiving the signal of the control loop module, and then output power adjustment is carried out.
3. The adaptive loop control method according to claim 2, wherein in the step S1, a current flowing through the resistor of the auxiliary winding is sampled by a current sampling module.
4. A switching power supply, characterized in that an adaptive loop control system according to claim 1 is used; or to perform an adaptive loop control method as claimed in any one of the preceding claims 2-3.
5. The switching power supply according to claim 4, wherein the switching power supply comprises a flyback switching power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110093483.4A CN112821772B (en) | 2021-01-22 | 2021-01-22 | Self-adaptive loop control system, control method and switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110093483.4A CN112821772B (en) | 2021-01-22 | 2021-01-22 | Self-adaptive loop control system, control method and switching power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112821772A CN112821772A (en) | 2021-05-18 |
| CN112821772B true CN112821772B (en) | 2023-04-07 |
Family
ID=75859018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110093483.4A Active CN112821772B (en) | 2021-01-22 | 2021-01-22 | Self-adaptive loop control system, control method and switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112821772B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007043767A (en) * | 2005-08-01 | 2007-02-15 | Matsushita Electric Ind Co Ltd | Switching power supply and semiconductor device |
| CN107947586A (en) * | 2017-11-07 | 2018-04-20 | 陕西亚成微电子股份有限公司 | A kind of Switching Power Supply fast-response control circuit and control method |
| CN110932575A (en) * | 2019-12-25 | 2020-03-27 | 成都启臣微电子股份有限公司 | Control system and method for preventing large and small waves in flyback switching power supply |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7911808B2 (en) * | 2007-02-10 | 2011-03-22 | Active-Semi, Inc. | Primary side constant output current controller with highly improved accuracy |
| US8526203B2 (en) * | 2008-10-21 | 2013-09-03 | On-Bright Electronics (Shanghai) Co., Ltd. | Systems and methods for constant voltage mode and constant current mode in flyback power converter with primary-side sensing and regulation |
| EP2512021B1 (en) * | 2011-04-14 | 2017-07-19 | Nxp B.V. | A controller for a switched mode power converter |
| US8780590B2 (en) * | 2012-05-03 | 2014-07-15 | Hong Kong Applied Science & Technology Research Institute Company, Ltd. | Output current estimation for an isolated flyback converter with variable switching frequency control and duty cycle adjustment for both PWM and PFM modes |
| CN102916595B (en) * | 2012-10-25 | 2015-02-18 | 深圳市明微电子股份有限公司 | Switching power supply and multi-threshold switching circuit thereof |
| US9985534B2 (en) * | 2016-02-05 | 2018-05-29 | Texas Instruments Incorporated | Method and circuitry for controlling a power supply |
-
2021
- 2021-01-22 CN CN202110093483.4A patent/CN112821772B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007043767A (en) * | 2005-08-01 | 2007-02-15 | Matsushita Electric Ind Co Ltd | Switching power supply and semiconductor device |
| CN107947586A (en) * | 2017-11-07 | 2018-04-20 | 陕西亚成微电子股份有限公司 | A kind of Switching Power Supply fast-response control circuit and control method |
| CN110932575A (en) * | 2019-12-25 | 2020-03-27 | 成都启臣微电子股份有限公司 | Control system and method for preventing large and small waves in flyback switching power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112821772A (en) | 2021-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI624141B (en) | Control method, control circuit, and switching power of isolated converter | |
| CN101785173B (en) | Enhancement of power conversion efficiency using dynamic load detecting and tracking | |
| US8884589B2 (en) | Method and system for power switch temperature regulation | |
| CN102761273B (en) | No-load control system of original-side feedback AC-DC switching power supply | |
| CN107833568B (en) | Screen brightness adjusting method and device and display terminal | |
| WO2020015376A1 (en) | Control method capable of improving heavy-to-light load dynamic response of switch-mode power supply | |
| US20090134857A1 (en) | Apparatus and method for adjusting working frequency of voltage regulator down circuit (vrd) by detecting current | |
| CN113572364B (en) | Switching power supply system and synchronous rectification controller thereof | |
| CN111857315B (en) | PSU output voltage control method, system and related components | |
| CN102185248A (en) | Digital control method and system for optical output power of laser | |
| CN103872883B (en) | A kind of pressure-limit current-limit control device of flyback power supply | |
| CN112821772B (en) | Self-adaptive loop control system, control method and switching power supply | |
| US20150349650A1 (en) | Method for communicating electronic apparatus with adaptor via specific communication interface to adjust operation behavior of adaptor, electronic apparatus, and corresponding adaptor | |
| US9270186B2 (en) | Voltage converting controller, voltage converting circuit, and control method for voltage converting | |
| US9287785B2 (en) | Voltage converting controller, voltage converting circuit, and control method for voltage converting | |
| US20200251924A1 (en) | Synchronized standby startup of power supplies with current injection | |
| CN111049394B (en) | Power supply circuit, circuit control method, power supply adapter, and electronic device | |
| US11223269B2 (en) | Circuit for controlling switching power supply by current limiting and magnetic field detection, and method for controlling switching power supply by using circuit | |
| US11256275B2 (en) | Power supply adjusting system, method and apparatus, chip, and electronic device | |
| CN112051883A (en) | Chip control method for realizing quick current response | |
| CN108121426B (en) | Chip voltage adjusting method, device and system | |
| CN116679821B (en) | Voltage adjusting method and electronic equipment | |
| CN108233387B (en) | Smooth switching method for SVC control mode of static var compensator | |
| CN116431545B (en) | Communication rate self-adaptive adjusting method, device, computer equipment and storage medium | |
| US11563375B2 (en) | Method and scheme capable of mitigating effect caused by occurrence of unexpected magnetic field/coupling for DC/DC power converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |