CN117411315B - Self-adaptive adjustment method, system and storage medium for bootstrap isolated power supply - Google Patents
Self-adaptive adjustment method, system and storage medium for bootstrap isolated power supply Download PDFInfo
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- CN117411315B CN117411315B CN202311727850.7A CN202311727850A CN117411315B CN 117411315 B CN117411315 B CN 117411315B CN 202311727850 A CN202311727850 A CN 202311727850A CN 117411315 B CN117411315 B CN 117411315B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000003990 capacitor Substances 0.000 claims abstract description 249
- 230000003044 adaptive effect Effects 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 22
- 239000013589 supplement Substances 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000001502 supplementing effect Effects 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 18
- 230000008569 process Effects 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000009469 supplementation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
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Classifications
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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
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention provides a self-adaptive adjustment method, a self-adaptive adjustment system and a storage medium for a bootstrap isolated power supply, wherein the working state of a first capacitor is judged according to the input state of the bootstrap isolated power supply; when the first capacitor is in an electric energy release state, adjusting capacitance information of the first capacitor according to the first voltage information; when the first capacitor is in an electric energy supplementing state, adjusting resistance information of the first resistor or capacitance information of the second capacitor according to the first voltage information; and the self-adaptive output attribute adjustment function of the bootstrap isolated power supply is realized, and the effects of improving the fault tolerance rate and the stability of the bootstrap isolated power supply are achieved.
Description
Technical Field
The present invention relates to the field of bootstrap isolated power supplies, and more particularly, to a self-adaptive adjustment method, system and storage medium for a bootstrap isolated power supply.
Background
The bootstrap isolated power supply is a special power supply, and the output voltage and the input voltage of the bootstrap isolated power supply are independent from the main power supply, so that the bootstrap isolated power supply can independently provide power for a rear-end load and is isolated from the main power supply. Such power supplies are often used in applications requiring high reliability and safety, such as in the fields of medical equipment, industrial control, and the like. At present, since the bootstrap isolated power supply circuit has a complex design, the input voltage and the output voltage need to be controlled separately, and thus, the bootstrap isolated power supply circuit is generally designed to output fixed electrical properties. When the load circuit driven by the bootstrap isolated power supply changes, or the electrical parameters of the circuit components of the bootstrap isolated power supply change due to the service life or environmental change, the output attribute of the bootstrap isolated power supply is affected.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a self-adaptive adjustment method, system and storage medium for a bootstrap isolated power supply, which detect an input state and an output state of the bootstrap isolated power supply in real time according to a driving characteristic of the bootstrap isolated power supply, and then detect and adjust according to an electrical parameter of an analog circuit of the bootstrap isolated power supply, so that the bootstrap isolated power supply realizes a function of self-adaptively adjusting an output attribute, thereby achieving an effect of improving a fault tolerance rate and stability of the bootstrap isolated power supply.
The first aspect of the present invention provides a self-adaptive adjustment method for a bootstrap isolated power supply, the method comprising:
acquiring first level information;
when the first level information is at a high level, acquiring first voltage information;
judging whether the first voltage information is lower than a preset first voltage threshold value or not;
if yes, the first capacitor is adjusted upwards;
if not, acquiring second voltage information when the first level information is switched from high level to low level, and adjusting the first capacitor according to the second voltage information;
when the first level information is at a low level, acquiring first voltage information;
judging whether the first voltage information is higher than a second voltage threshold value;
If yes, acquiring first time information, and adjusting a first resistor according to the first time information;
if not, third voltage information of the moment when the first level information is switched from the high level to the low level is obtained, and the first resistor or the second capacitor is adjusted according to the third voltage information.
In this scheme, adjust first condenser according to second voltage information, specifically be:
judging whether the second voltage information is higher than a preset third voltage threshold value or not;
if yes, judging whether the capacitance information of the first capacitor is larger than a preset first capacitance threshold value;
if so, the first capacitor is adjusted downward.
In this scheme, acquire first time information, adjust first resistor according to first time information, specifically do:
when the first voltage information is higher than the second voltage threshold value, starting a first timer;
stopping the first timer when the first level information is switched from low level to high level to obtain first time information;
judging whether the first time information exceeds a preset time threshold value or not;
if so, the first resistor is adjusted upward.
In this scheme, adjust first resistor or second condenser according to third voltage information, specifically be:
Acquiring resistance information of a first resistor;
judging whether the resistance information of the first resistor exceeds a preset resistance threshold value or not;
if yes, the first resistor is adjusted downwards;
if not, the second capacitor is adjusted upwards.
In this scheme, still include:
the first capacitor and the second capacitor are digital tunable capacitors;
and the digital adjustable capacitor is in communication connection with the digital adjustable capacitor through a preset communication instruction.
In this scheme, still include:
the first resistor and the digitally tunable resistor;
and the digital adjustable resistor is in communication connection with the digital adjustable resistor through a preset communication instruction.
The second aspect of the present invention provides an adaptive adjustment system for a bootstrap isolated power supply, including an adaptive adjustment method program for a bootstrap isolated power supply, where the adaptive adjustment method program for a bootstrap isolated power supply, when executed by the processor, implements the following steps:
acquiring first level information;
when the first level information is at a high level, acquiring first voltage information;
judging whether the first voltage information is lower than a preset first voltage threshold value or not;
if yes, the first capacitor is adjusted upwards;
if not, acquiring second voltage information when the first level information is switched from high level to low level, and adjusting the first capacitor according to the second voltage information;
When the first level information is at a low level, acquiring first voltage information;
judging whether the first voltage information is higher than a second voltage threshold value;
if yes, acquiring first time information, and adjusting a first resistor according to the first time information;
if not, third voltage information of the moment when the first level information is switched from the high level to the low level is obtained, and the first resistor or the second capacitor is adjusted according to the third voltage information.
In this scheme, adjust first condenser according to second voltage information, specifically be:
judging whether the second voltage information is higher than a preset third voltage threshold value or not;
if yes, judging whether the capacitance information of the first capacitor is larger than a preset first capacitance threshold value;
if so, the first capacitor is adjusted downward.
In this scheme, acquire first time information, adjust first resistor according to first time information, specifically do:
when the first voltage information is higher than the second voltage threshold value, starting a first timer;
stopping the first timer when the first level information is switched from low level to high level to obtain first time information;
judging whether the first time information exceeds a preset time threshold value or not;
if so, the first resistor is adjusted upward.
A third aspect of the present invention provides a computer readable storage medium having embodied therein an adaptive adjustment method program for a bootstrap isolated power supply, which when executed by a processor, implements the steps of the adaptive adjustment method for a bootstrap isolated power supply as defined in any of the preceding claims.
The invention provides a self-adaptive adjustment method, a self-adaptive adjustment system and a storage medium for a bootstrap isolated power supply, wherein the working state of a first capacitor is judged according to the input state of the bootstrap isolated power supply; when the first capacitor is in an electric energy release state, adjusting capacitance information of the first capacitor according to the first voltage information; when the first capacitor is in an electric energy supplementing state, adjusting resistance information of the first resistor or capacitance information of the second capacitor according to the first voltage information; and the self-adaptive output attribute adjustment function of the bootstrap isolated power supply is realized, and the effects of improving the fault tolerance rate and the stability of the bootstrap isolated power supply are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 is a flow chart of an adaptive adjustment method of a bootstrap isolated power supply of the present invention;
FIG. 2 is a flow chart illustrating the adjustment of the first capacitor according to the second voltage information provided by the embodiment of the invention;
FIG. 3 is a flow chart illustrating the adjustment of a first resistor according to first time information provided by an embodiment of the present invention;
fig. 4 shows a block diagram of an adaptive regulation system of the bootstrap isolated power supply of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The terms "first," "second," and the like, as used in embodiments of the present invention, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Nor does the terms "a," "an," or "the" or similar terms mean a limitation of quantity, but rather that at least one is present. Likewise, the word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The steps preceding or following the methods of embodiments of the present invention are not necessarily performed in a sequential order. Rather, the various steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
In addition, functional modules in the embodiments of the present invention may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
Fig. 1 shows a flow chart of an adaptive adjustment method of a bootstrap isolated power supply of the present invention.
As shown in fig. 1, the invention discloses a self-adaptive adjustment method of a bootstrap isolated power supply, which comprises the following steps:
s102, acquiring first level information;
s104, when the first level information is at a high level, acquiring first voltage information;
s106, judging whether the first voltage information is lower than a preset first voltage threshold value;
s108, if yes, the first capacitor is adjusted upwards;
s110, if not, acquiring second voltage information when the first level information is switched from high level to low level, and adjusting the first capacitor according to the second voltage information;
s112, when the first level information is at a low level, acquiring first voltage information;
s114, judging whether the first voltage information is higher than a second voltage threshold value;
s116, if yes, acquiring first time information, and adjusting the first resistor according to the first time information;
if not, S118 is performed, third voltage information is obtained when the first level information is switched from the high level to the low level, and the first resistor or the second capacitor is adjusted according to the third voltage information.
It should be noted that the first level information is a level attribute of one of the input pins of the bootstrap isolated power supply, and a PWM (pulse width modulation) signal with a preset frequency and a duty cycle is generally used as an input signal. The PWM signal is a driving time sequence of the bootstrap isolation power supply, when the PWM signal is at a high level, the bootstrap isolation power supply outwards releases the electric quantity stored in the first capacitor, so that the electric energy supply of the load circuit is realized, and meanwhile, the electric energy storage is carried out for the second capacitor; when the PWM signal is low, the second capacitor of the bootstrap isolated power supply supplements the first capacitor with the consumed electrical energy to be discharged outwards through the first resistor. The first capacitor and the second capacitor are capacitors and are components for storing electric quantity and electric energy; the first resistor is a resistor, and is a component that blocks a current.
When the first level information is at a high level, the first capacitor releases electric energy outwards at the moment, and the voltage value of the positive electrode of the first capacitor is obtained and recorded as first voltage information. When the first capacitor discharges electric energy outwards, whether the electric quantity of the first capacitor meets the electric energy supply requirement of an external load circuit is indicated by judging whether the first voltage information is lower than a preset first voltage threshold value. When the first voltage information is lower than a preset first voltage threshold, the electric quantity stored in the first capacitor is insufficient to meet the electric energy supply requirement of the external load circuit, and the first capacitor is required to be adjusted upwards to improve the electric energy stored in the first capacitor, so that the purpose of improving the driving capability of the bootstrap isolated power supply is achieved. When the first voltage information is not lower than a preset first voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from high level to low level, and recording the voltage value as second voltage information; judging whether interference exists in the electric quantity storage of the first capacitor or not through the second voltage information, and further adjusting the first capacitor; the electric quantity stored in the analog circuit is reduced, so that the electric quantity released by the capacitor when the power supply is stopped is reduced, and the purpose of reducing energy consumption is achieved.
When the first level information is at a low level, the second capacitor supplements electric energy to the first capacitor through the first resistor, and the first voltage information of the positive electrode of the first capacitor is obtained. When the resistance value of the first resistor is larger, the current blocking capacity is stronger, the energy supplementing speed of the first capacitor is slower, and the energy consumption and heating conditions in the energy supplementing process are smaller; when the resistance value of the first resistor is smaller, the blocking capability to the current is weaker, the energy supplementing speed of the first capacitor is faster, and the energy consumption and the heating condition in the energy supplementing process are larger. When the first voltage information is higher than a preset second voltage threshold value, the first capacitor energy supplementing reaches the target, the remaining energy supplementing time is recorded and is recorded as first time information, whether the condition that the charging speed is too high is judged according to the first time information, and then the first resistor is adjusted. When the first voltage information is lower than a preset second voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from low level to high level, and recording the voltage value as third voltage information; and then adjusting the first resistor or the second capacitor according to the third voltage information, so as to ensure that the electric energy of the first capacitor is supplemented to reach a preset effect.
Fig. 2 shows a flowchart of adjusting the first capacitor according to the second voltage information provided by the embodiment of the invention.
According to an embodiment of the present invention, as shown in fig. 2, the first capacitor is adjusted according to the second voltage information, specifically:
s202, judging whether the second voltage information is higher than a preset third voltage threshold value;
s204, if so, judging whether the capacitance information of the first capacitor is larger than a preset first capacitance threshold value;
s206, if yes, the first capacitor is adjusted downwards.
It should be noted that, when the electric quantity released by the first capacitor satisfies the requirement of the external load circuit in the process that the first capacitor releases electric energy outwards, the second voltage information is used to judge whether the first capacitor has the interference of the electric quantity. When the second voltage information exceeds a preset third voltage threshold value, the first capacitor still stores electric quantity exceeding a preset value after providing electric energy for an external load circuit; at this time, whether the capacitance value of the first capacitor is higher than a preset first capacitance threshold value is determined, if so, the first capacitor is adjusted downwards to reduce the electricity storage capacity of the first capacitor. In practical application, when the isolated power supply stops working, the capacitor in the isolated power supply can release all electric energy to other components in the power supply, and the electric energy at the moment is idle work, so that if the electric energy stored in the capacitor in the isolated power supply is too much, the more electric energy is wasted. Accordingly, by controlling the electric energy stored in the first capacitor, the electric energy loss is reduced.
Fig. 3 shows a flowchart of adjusting a first resistor according to first time information provided by an embodiment of the present invention.
According to an embodiment of the present invention, as shown in fig. 3, the first time information is obtained, and the first resistor is adjusted according to the first time information, specifically:
s302, when the first voltage information is higher than a second voltage threshold value, starting a first timer;
s304, stopping the first timer when the first level information is switched from low level to high level, and obtaining first time information;
s306, judging whether the first time information exceeds a preset time threshold;
and S308, if yes, the first resistor is adjusted upwards.
When the second capacitor supplements the electric energy to the first capacitor through the first resistor, and the electric energy obtained by the first capacitor reaches a preset target, whether the charging speed is too high is judged through the first time information. When the first voltage information is higher than the second voltage threshold value, starting a first timer to count time; the first timer is stopped until the first level information is switched from the low level to the high level. The time information recorded by the first timer is the first time information. If the first time information exceeds the preset time threshold, the energy supplementing time remaining after the energy supplementing of the first capacitor is completed exceeds the preset threshold, which means that the energy supplementing speed is too high. At the moment, the blocking capacity to the current is improved by upwards adjusting the first resistor, so that the effect of reducing the energy supplementing speed is achieved; at the same time, the first resistor is adjusted upwards, so that the electric energy loss caused by the current flowing through the first resistor in the charging process is reduced.
According to an embodiment of the present invention, the adjusting the first resistor or the second capacitor according to the third voltage information is specifically:
acquiring resistance information of a first resistor;
judging whether the resistance information of the first resistor exceeds a preset resistance threshold value or not;
if yes, the first resistor is adjusted downwards;
if not, the second capacitor is adjusted upwards.
It should be noted that, when the second capacitor supplements the electric energy to the first capacitor through the first resistor, and the electric energy supplementation obtained by the first capacitor does not reach the preset target, the first resistor or the second capacitor needs to be adjusted to meet the energy supplementation requirement of the first capacitor. After the resistance information of the first resistor is acquired, whether the first resistor exceeds a preset resistance threshold value is judged. If the resistance value of the first resistor exceeds the preset resistance threshold, the first resistor has a downward adjusting space, and the purpose of improving the energy supplementing speed is achieved by reducing the resistance value of the first resistor. If the resistance value of the first resistor exceeds the preset resistance threshold value, the first resistor does not have a downward adjustment space, and the effect of increasing the electric quantity of the first capacitor to obtain more electric quantity is achieved by increasing the electric quantity of the second capacitor.
According to an embodiment of the present invention, further comprising:
the first capacitor and the second capacitor are digital tunable capacitors;
and the digital adjustable capacitor is in communication connection with the digital adjustable capacitor through a preset communication instruction.
It should be noted that a digital tunable capacitor, also called a digital programmable capacitor, is an electronic component with an adjustable capacitance value. And acquiring capacitance information through the reading instruction, and adjusting the capacitance information of the digital adjustable capacitor through the capacitance adjusting instruction.
According to an embodiment of the present invention, further comprising:
the first resistor and the digitally tunable resistor;
and the digital adjustable resistor is in communication connection with the digital adjustable resistor through a preset communication instruction.
It should be noted that a digital adjustable resistor, also referred to as a digital programmable resistor, is an electronic component having an adjustable resistance value. The resistance information is obtained by the reading instruction, and the resistance information of the digital adjustable resistor is adjusted by the resistance adjustment instruction.
It is worth mentioning that the method further comprises:
the first capacitor is composed of one or more capacitors, and the connection mode is serial connection or parallel connection;
wherein at least one of the capacitors is a digitally tunable capacitor.
It should be noted that the capacitive device may achieve the effect of adjusting the overall capacitance by means of series connection or parallel connection.
As one embodiment, the first capacitor is formed by one or more capacitors connected in parallel, thereby changing the adjustable range of the capacitors. For example, the adjustable range of the adjustable capacitor is 0-10, and the adjustable range of the capacitor is 10-20, and the capacitor is formed by connecting the adjustable capacitor with a fixed value of 10 capacitors in parallel. The whole range of the capacitor is improved in a capacitor parallel connection mode, and the effect of improving the electric quantity stored by the capacitor is achieved.
As one embodiment, the first capacitor is formed by connecting one or more capacitors in parallel, so that the capacitance adjustment precision is changed. For example, the capacitor can be adjusted to a range of 0-20 for a total of 10 adjustment steps, each step being adjusted to 2; by connecting two capacitors with the adjustable range of 0-10 in parallel, the adjustable range of 0-20 can be realized as the capacitors are independently adjustable, and each step is adjusted to be 1. And the adjustment precision of the electric quantity is improved in a capacitor parallel connection mode.
It is worth mentioning that the method further comprises:
the first resistor is composed of one or more resistors, and the connection mode is serial connection or parallel connection;
wherein at least one of the resistors is a digitally tunable resistor.
It should be noted that the resistor device can achieve the effect of adjusting the overall resistance value in a serial or parallel manner.
As one embodiment, the first resistor is composed of one or more resistors connected in series, thereby changing the adjustable range of the resistor. For example, the adjustable resistor has an adjustable range of 0-10, and a resistor with a fixed value of 10 is connected in series, and the adjustable range is 10-20. The whole range of the resistor is improved in a resistor series connection mode, and the effect of improving the charging speed adjusting range is achieved.
As one embodiment, the first resistor is composed of one or more resistors connected in series, thereby changing the resistance adjustment accuracy. For example, the resistor can be adjusted to a range of 0-20 for a total of 10 adjustment steps, each step being adjusted to 2; by connecting two resistors with the adjustable range of 0-10 in series, the adjustable range of 0-20 can be realized as the resistors are independently adjustable, and each step is adjusted to be 1. And the adjustment precision of the charging speed is improved by a resistor series connection mode.
It is worth mentioning that the method further comprises:
when the first voltage information is lower than a preset first voltage threshold, the first capacitor needs to be adjusted upwards;
acquiring capacitance information of a first capacitor;
Judging whether the capacitance information exceeds a preset second capacitance threshold value or not;
if yes, setting a flag bit and sending the electric quantity shortage information to the terminal.
It should be noted that, when the electric energy stored in the first capacitor is insufficient to supply the requirement of the peripheral load circuit and the capacitance information of the first capacitor exceeds the preset second capacitance threshold, it means that the maximum electric energy stored in the first capacitor can not meet the electric energy requirement of the peripheral load circuit. At this time, the flag bit information is set, and the electric quantity shortage information is sent to the terminal device. The terminal equipment can be an LED lamp in a bootstrap isolated power supply, and the insufficient electric quantity is represented by the on-off state of the LED lamp; the terminal equipment can be a load circuit, can establish communication connection with the bootstrap isolated power supply through a preset communication interface, and receives communication information from the bootstrap isolated power supply.
Fig. 4 shows a block diagram of an adaptive regulation system of the bootstrap isolated power supply of the present invention.
As shown in fig. 4, the invention discloses an adaptive adjustment system 4 of a bootstrap isolated power supply, which comprises a memory 41 and a processor 42, wherein the memory comprises an adaptive adjustment method program of the bootstrap isolated power supply, and the adaptive adjustment method program of the bootstrap isolated power supply realizes the following steps when being executed by the processor:
Acquiring first level information;
when the first level information is at a high level, acquiring first voltage information;
judging whether the first voltage information is lower than a preset first voltage threshold value or not;
if yes, the first capacitor is adjusted upwards;
if not, acquiring second voltage information when the first level information is switched from high level to low level, and adjusting the first capacitor according to the second voltage information;
when the first level information is at a low level, acquiring first voltage information;
judging whether the first voltage information is higher than a second voltage threshold value;
if yes, acquiring first time information, and adjusting a first resistor according to the first time information;
if not, third voltage information of the moment when the first level information is switched from the high level to the low level is obtained, and the first resistor or the second capacitor is adjusted according to the third voltage information.
It should be noted that the first level information is a level attribute of one of the input pins of the bootstrap isolated power supply, and a PWM (pulse width modulation) signal with a preset frequency and a duty cycle is generally used as an input signal. The PWM signal is a driving time sequence of the bootstrap isolation power supply, when the PWM signal is at a high level, the bootstrap isolation power supply outwards releases the electric quantity stored in the first capacitor, so that the electric energy supply of the load circuit is realized, and meanwhile, the electric energy storage is carried out for the second capacitor; when the PWM signal is low, the second capacitor of the bootstrap isolated power supply supplements the first capacitor with the consumed electrical energy to be discharged outwards through the first resistor. The first capacitor and the second capacitor are capacitors and are components for storing electric quantity and electric energy; the first resistor is a resistor, and is a component that blocks a current.
When the first level information is at a high level, the first capacitor releases electric energy outwards at the moment, and the voltage value of the positive electrode of the first capacitor is obtained and recorded as first voltage information. When the first capacitor discharges electric energy outwards, whether the electric quantity of the first capacitor meets the electric energy supply requirement of an external load circuit is indicated by judging whether the first voltage information is lower than a preset first voltage threshold value. When the first voltage information is lower than a preset first voltage threshold, the electric quantity stored in the first capacitor is insufficient to meet the electric energy supply requirement of the external load circuit, and the first capacitor is required to be adjusted upwards to improve the electric energy stored in the first capacitor, so that the purpose of improving the driving capability of the bootstrap isolated power supply is achieved. When the first voltage information is not lower than a preset first voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from high level to low level, and recording the voltage value as second voltage information; judging whether interference exists in the electric quantity storage of the first capacitor or not through the second voltage information, and further adjusting the first capacitor; the electric quantity stored in the analog circuit is reduced, so that the electric quantity released by the capacitor when the power supply is stopped is reduced, and the purpose of reducing energy consumption is achieved.
When the first level information is at a low level, the second capacitor supplements electric energy to the first capacitor through the first resistor, and the first voltage information of the positive electrode of the first capacitor is obtained. When the resistance value of the first resistor is larger, the current blocking capacity is stronger, the energy supplementing speed of the first capacitor is slower, and the energy consumption and heating conditions in the energy supplementing process are smaller; when the resistance value of the first resistor is smaller, the blocking capability to the current is weaker, the energy supplementing speed of the first capacitor is faster, and the energy consumption and the heating condition in the energy supplementing process are larger. When the first voltage information is higher than a preset second voltage threshold value, the first capacitor energy supplementing reaches the target, the remaining energy supplementing time is recorded and is recorded as first time information, whether the condition that the charging speed is too high is judged according to the first time information, and then the first resistor is adjusted. When the first voltage information is lower than a preset second voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from low level to high level, and recording the voltage value as third voltage information; and then adjusting the first resistor or the second capacitor according to the third voltage information, so as to ensure that the electric energy of the first capacitor is supplemented to reach a preset effect.
According to an embodiment of the present invention, the adjusting the first capacitor according to the second voltage information is specifically:
judging whether the second voltage information is higher than a preset third voltage threshold value or not;
if yes, judging whether the capacitance information of the first capacitor is larger than a preset first capacitance threshold value;
if so, the first capacitor is adjusted downward.
It should be noted that, when the electric quantity released by the first capacitor satisfies the requirement of the external load circuit in the process that the first capacitor releases electric energy outwards, the second voltage information is used to judge whether the first capacitor has the interference of the electric quantity. When the second voltage information exceeds a preset third voltage threshold value, the first capacitor still stores electric quantity exceeding a preset value after providing electric energy for an external load circuit; at this time, whether the capacitance value of the first capacitor is higher than a preset first capacitance threshold value is determined, if so, the first capacitor is adjusted downwards to reduce the electricity storage capacity of the first capacitor. In practical application, when the isolated power supply stops working, the capacitor in the isolated power supply can release all electric energy to other components in the power supply, and the electric energy at the moment is idle work, so that if the electric energy stored in the capacitor in the isolated power supply is too much, the more electric energy is wasted. Accordingly, by controlling the electric energy stored in the first capacitor, the electric energy loss is reduced.
According to an embodiment of the present invention, the first time information is obtained, and the first resistor is adjusted according to the first time information, specifically:
when the first voltage information is higher than the second voltage threshold value, starting a first timer;
stopping the first timer when the first level information is switched from low level to high level to obtain first time information;
judging whether the first time information exceeds a preset time threshold value or not;
if so, the first resistor is adjusted upward.
When the second capacitor supplements the electric energy to the first capacitor through the first resistor, and the electric energy obtained by the first capacitor reaches a preset target, whether the charging speed is too high is judged through the first time information. When the first voltage information is higher than the second voltage threshold value, starting a first timer to count time; the first timer is stopped until the first level information is switched from the low level to the high level. The time information recorded by the first timer is the first time information. If the first time information exceeds the preset time threshold, the energy supplementing time remaining after the energy supplementing of the first capacitor is completed exceeds the preset threshold, which means that the energy supplementing speed is too high. At the moment, the blocking capacity to the current is improved by upwards adjusting the first resistor, so that the effect of reducing the energy supplementing speed is achieved; at the same time, the first resistor is adjusted upwards, so that the electric energy loss caused by the current flowing through the first resistor in the charging process is reduced.
According to an embodiment of the present invention, the adjusting the first resistor or the second capacitor according to the third voltage information is specifically:
acquiring resistance information of a first resistor;
judging whether the resistance information of the first resistor exceeds a preset resistance threshold value or not;
if yes, the first resistor is adjusted downwards;
if not, the second capacitor is adjusted upwards.
It should be noted that, when the second capacitor supplements the electric energy to the first capacitor through the first resistor, and the electric energy supplementation obtained by the first capacitor does not reach the preset target, the first resistor or the second capacitor needs to be adjusted to meet the energy supplementation requirement of the first capacitor. After the resistance information of the first resistor is acquired, whether the first resistor exceeds a preset resistance threshold value is judged. If the resistance value of the first resistor exceeds the preset resistance threshold, the first resistor has a downward adjusting space, and the purpose of improving the energy supplementing speed is achieved by reducing the resistance value of the first resistor. If the resistance value of the first resistor exceeds the preset resistance threshold value, the first resistor does not have a downward adjustment space, and the effect of increasing the electric quantity of the first capacitor to obtain more electric quantity is achieved by increasing the electric quantity of the second capacitor.
According to an embodiment of the present invention, further comprising:
the first capacitor and the second capacitor are digital tunable capacitors;
the digital adjustable capacitor is connected with the digital adjustable capacitor through a preset communication instruction in a communication way, and the digital adjustable capacitor comprises the steps of acquiring the capacitance value of the digital adjustable capacitor through a capacitance value acquisition instruction and adjusting the capacitance value of the digital adjustable capacitor through a preset capacitance value adjustment instruction.
It should be noted that a digital tunable capacitor, also called a digital programmable capacitor, is an electronic component with an adjustable capacitance value. And acquiring capacitance information through the reading instruction, and adjusting the capacitance information of the digital adjustable capacitor through the capacitance adjusting instruction.
According to an embodiment of the present invention, further comprising:
the first resistor and the digitally tunable resistor;
and the digital adjustable resistor is in communication connection with the digital adjustable resistor through a preset communication instruction.
It should be noted that a digital adjustable resistor, also referred to as a digital programmable resistor, is an electronic component having an adjustable resistance value. The resistance information is obtained by the reading instruction, and the resistance information of the digital adjustable resistor is adjusted by the resistance adjustment instruction.
It is worth mentioning that the method further comprises:
the first capacitor is composed of one or more capacitors, and the connection mode is serial connection or parallel connection;
wherein at least one of the capacitors is a digitally tunable capacitor.
It should be noted that the capacitive device may achieve the effect of adjusting the overall capacitance by means of series connection or parallel connection.
As one embodiment, the first capacitor is formed by one or more capacitors connected in parallel, thereby changing the adjustable range of the capacitors. For example, the adjustable range of the adjustable capacitor is 0-10, and the adjustable range of the capacitor is 10-20, and the capacitor is formed by connecting the adjustable capacitor with a fixed value of 10 capacitors in parallel. The whole range of the capacitor is improved in a capacitor parallel connection mode, and the effect of improving the electric quantity stored by the capacitor is achieved.
As one embodiment, the first capacitor is formed by connecting one or more capacitors in parallel, so that the capacitance adjustment precision is changed. For example, the capacitor can be adjusted to a range of 0-20 for a total of 10 adjustment steps, each step being adjusted to 2; by connecting two capacitors with the adjustable range of 0-10 in parallel, the adjustable range of 0-20 can be realized as the capacitors are independently adjustable, and each step is adjusted to be 1. And the adjustment precision of the electric quantity is improved in a capacitor parallel connection mode.
It is worth mentioning that the method further comprises:
the first resistor is composed of one or more resistors, and the connection mode is serial connection or parallel connection;
wherein at least one of the resistors is a digitally tunable resistor.
It should be noted that the resistor device can achieve the effect of adjusting the overall resistance value in a serial or parallel manner.
As one embodiment, the first resistor is composed of one or more resistors connected in series, thereby changing the adjustable range of the resistor. For example, the adjustable resistor has an adjustable range of 0-10, and a resistor with a fixed value of 10 is connected in series, and the adjustable range is 10-20. The whole range of the resistor is improved in a resistor series connection mode, and the effect of improving the charging speed adjusting range is achieved.
As one embodiment, the first resistor is composed of one or more resistors connected in series, thereby changing the resistance adjustment accuracy. For example, the resistor can be adjusted to a range of 0-20 for a total of 10 adjustment steps, each step being adjusted to 2; by connecting two resistors with the adjustable range of 0-10 in series, the adjustable range of 0-20 can be realized as the resistors are independently adjustable, and each step is adjusted to be 1. And the adjustment precision of the charging speed is improved by a resistor series connection mode.
It is worth mentioning that the method further comprises:
when the first voltage information is lower than a preset first voltage threshold, the first capacitor needs to be adjusted upwards;
acquiring capacitance information of a first capacitor;
judging whether the capacitance information exceeds a preset second capacitance threshold value or not;
if yes, setting a flag bit and sending the electric quantity shortage information to the terminal.
It should be noted that, when the electric energy stored in the first capacitor is insufficient to supply the requirement of the peripheral load circuit and the capacitance information of the first capacitor exceeds the preset second capacitance threshold, it means that the maximum electric energy stored in the first capacitor can not meet the electric energy requirement of the peripheral load circuit. At this time, the flag bit information is set, and the electric quantity shortage information is sent to the terminal device. The terminal equipment can be an LED lamp in a bootstrap isolated power supply, and the insufficient electric quantity is represented by the on-off state of the LED lamp; the terminal equipment can be a load circuit, can establish communication connection with the bootstrap isolated power supply through a preset communication interface, and receives communication information from the bootstrap isolated power supply.
A third aspect of the present invention provides a computer readable storage medium having embodied therein an adaptive adjustment method program for a bootstrap isolated power supply, which when executed by a processor, implements the steps of the adaptive adjustment method for a bootstrap isolated power supply as defined in any of the preceding claims.
The invention provides a self-adaptive adjustment method, a self-adaptive adjustment system and a storage medium for a bootstrap isolated power supply, wherein the working state of a first capacitor is judged according to the input state of the bootstrap isolated power supply; when the first capacitor is in an electric energy release state, adjusting capacitance information of the first capacitor according to the first voltage information; when the first capacitor is in an electric energy supplementing state, adjusting resistance information of the first resistor or capacitance information of the second capacitor according to the first voltage information; and the self-adaptive output attribute adjustment function of the bootstrap isolated power supply is realized, and the effects of improving the fault tolerance rate and the stability of the bootstrap isolated power supply are achieved.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for adaptively adjusting a bootstrap isolated power supply, the method comprising:
acquiring first level information;
when the first level information is at a high level, acquiring first voltage information;
judging whether the first voltage information is lower than a preset first voltage threshold value or not;
if yes, the first capacitor is adjusted upwards;
if not, acquiring second voltage information when the first level information is switched from high level to low level, and adjusting the first capacitor according to the second voltage information;
when the first level information is at a low level, acquiring first voltage information;
judging whether the first voltage information is higher than a second voltage threshold value;
if yes, acquiring first time information, and adjusting a first resistor according to the first time information;
if not, acquiring third voltage information at the moment that the first level information is switched from high level to low level, and adjusting the first resistor or the second capacitor according to the third voltage information;
The first level information is the level information of a PWM signal input pin of the bootstrap isolated power supply; the first voltage information is a voltage value of the positive electrode of the first capacitor, which is obtained when the first level information is at a high level, and when the first level information is at a high level, the first capacitor releases electric energy outwards, and when the first level information is at a low level, the second capacitor supplements electric energy to the first capacitor through the first resistor;
when the first voltage information is not lower than a preset first voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from high level to low level, and recording the voltage value as second voltage information;
when the first voltage information is lower than a preset second voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from low level to high level, and recording the voltage value as third voltage information;
when the first voltage information is higher than a preset second voltage threshold, the first capacitor energy compensating reaches the target, and the residual energy compensating time is recorded as first time information.
2. The self-adaptive adjustment method of a bootstrap isolated power supply according to claim 1, wherein the adjusting the first capacitor according to the second voltage information is specifically:
Judging whether the second voltage information is higher than a preset third voltage threshold value or not;
if yes, judging whether the capacitance information of the first capacitor is larger than a preset first capacitance threshold value;
if so, the first capacitor is adjusted downward.
3. The self-adaptive adjustment method of a bootstrap isolated power supply according to claim 1, wherein the obtaining the first time information adjusts the first resistor according to the first time information comprises:
when the first voltage information is higher than the second voltage threshold value, starting a first timer;
stopping the first timer when the first level information is switched from low level to high level to obtain first time information;
judging whether the first time information exceeds a preset time threshold value or not;
if so, the first resistor is adjusted upward.
4. The self-adaptive adjustment method of a bootstrap isolated power supply according to claim 1, wherein the adjusting the first resistor or the second capacitor according to the third voltage information is specifically:
acquiring resistance information of a first resistor;
judging whether the resistance information of the first resistor exceeds a preset resistance threshold value or not;
if yes, the first resistor is adjusted downwards;
If not, the second capacitor is adjusted upwards.
5. The adaptive adjustment method of a bootstrap isolated power supply of claim 1, further comprising:
the first capacitor and the second capacitor are digital tunable capacitors;
and the digital adjustable capacitor is in communication connection with the digital adjustable capacitor through a preset communication instruction.
6. The adaptive adjustment method of a bootstrap isolated power supply of claim 1, further comprising:
the first resistor and the digitally tunable resistor;
and the digital adjustable resistor is in communication connection with the digital adjustable resistor through a preset communication instruction.
7. An adaptive regulation system for a bootstrap isolated power supply, the system comprising a memory and a processor, the memory comprising an adaptive regulation method program for the bootstrap isolated power supply, the adaptive regulation method program for the bootstrap isolated power supply implementing the following steps when executed by the processor:
acquiring first level information;
when the first level information is at a high level, acquiring first voltage information;
judging whether the first voltage information is lower than a preset first voltage threshold value or not;
if yes, the first capacitor is adjusted upwards;
If not, acquiring second voltage information when the first level information is switched from high level to low level, and adjusting the first capacitor according to the second voltage information;
when the first level information is at a low level, acquiring first voltage information;
judging whether the first voltage information is higher than a second voltage threshold value;
if yes, acquiring first time information, and adjusting a first resistor according to the first time information;
if not, acquiring third voltage information at the moment that the first level information is switched from high level to low level, and adjusting the first resistor or the second capacitor according to the third voltage information;
the first level information is the level information of a PWM signal input pin of the bootstrap isolated power supply; the first voltage information is a voltage value of the positive electrode of the first capacitor, which is obtained when the first level information is at a high level, and when the first level information is at a high level, the first capacitor releases electric energy outwards, and when the first level information is at a low level, the second capacitor supplements electric energy to the first capacitor through the first resistor;
when the first voltage information is not lower than a preset first voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from high level to low level, and recording the voltage value as second voltage information;
When the first voltage information is lower than a preset second voltage threshold value, recording the voltage value of the positive electrode of the first capacitor at the moment when the first level information is switched from low level to high level, and recording the voltage value as third voltage information;
when the first voltage information is higher than a preset second voltage threshold, the first capacitor energy compensating reaches the target, and the residual energy compensating time is recorded as first time information.
8. The adaptive regulation system of claim 7, wherein the regulating the first capacitor according to the second voltage information is specifically:
judging whether the second voltage information is higher than a preset third voltage threshold value or not;
if yes, judging whether the capacitance information of the first capacitor is larger than a preset first capacitance threshold value;
if so, the first capacitor is adjusted downward.
9. The adaptive adjustment system for bootstrap isolated power supply of claim 7, wherein said obtaining first time information adjusts the first resistor according to the first time information is specifically as follows:
when the first voltage information is higher than the second voltage threshold value, starting a first timer;
stopping the first timer when the first level information is switched from low level to high level to obtain first time information;
Judging whether the first time information exceeds a preset time threshold value or not;
if so, the first resistor is adjusted upward.
10. A computer readable storage medium having stored thereon a computer program, characterized in that the computer readable storage medium comprises an adaptive adjustment method program of a bootstrap isolated power supply, which, when executed by a processor, implements the steps of the adaptive adjustment method of a bootstrap isolated power supply according to any of claims 1-6.
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