CN109951069A - A kind of voltage compensating method and device of reduction voltage circuit - Google Patents
A kind of voltage compensating method and device of reduction voltage circuit Download PDFInfo
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- CN109951069A CN109951069A CN201910283395.3A CN201910283395A CN109951069A CN 109951069 A CN109951069 A CN 109951069A CN 201910283395 A CN201910283395 A CN 201910283395A CN 109951069 A CN109951069 A CN 109951069A
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- 238000000034 method Methods 0.000 title claims abstract description 35
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- 230000000694 effects Effects 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 10
- 230000006837 decompression Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 239000000919 ceramic Substances 0.000 description 1
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Abstract
The invention discloses a kind of voltage compensating method of reduction voltage circuit and devices, comprising: building is connected respectively to multiple compensation circuits of reduction voltage circuit, wherein each compensation circuit has used the capacitor with different capacitances respectively；The operating temperature of reduction voltage circuit is determined in reduction voltage circuit work；A compensation circuit is specified from multiple compensation circuits according to operating temperature, wherein appointed compensation circuit has used the capacitor with capacitance relevant to operating temperature；It the use of appointed compensation circuit is reduction voltage circuit offset voltage with output rated voltage.Technical solution of the present invention can meet expected burning voltage compensation effect to the offer of different reduction voltage circuits at different temperatures, promote thermal adaptability and compensation precision, while not introducing additional voltage fluctuation.
Description
Technical field
The present invention relates to electronic circuit fields, and more specifically, a kind of voltage compensation more particularly to reduction voltage circuit
Method and apparatus.
Background technique
Reduction voltage circuit is because be widely used in server the advantages that transfer efficiency with higher, accurate output voltage
In power supply media board.The mode that reduction voltage circuit generally selects voltage or current loop to compensate improve circuit rigid interference performance and
Outputting inductance, capacitor selection flexibility ratio.The capacitor being depressured in the compensation circuit of route generally uses MLCC (laminated ceramic chip
Capacitor), but MLCC can drift about in different temperatures.To overcome the problems, such as this, the prior art is set compensation circuit
It is generally to take the mistake design method for increasing capacitor quantity in meter to reduce since temperature drift bring influences, to guarantee to compensate
Circuit can be precise and stable under different temperature conditions work.But this method is warm in all designs in order to guarantee to compensate circuit
It can work normally under degree and uniformly increase capacitance and reduce resistance, although compensation circuit in this way can be in institute
Having can work normally under design temperature, but compensate the work accuracy decline in circuit, and output voltage loop fluctuation becomes larger.
This design of crossing not only had increased cost but also compensation circuit is made all to be unable to accurate compensation under all design temperatures or be not achieved defeated
The purpose of desired voltage out, and require also to be difficult to reach design requirement in stringent project in voltage fluctuation.
For loop temperature bad adaptability, the problem that compensation precision is low, voltage fluctuation is big is compensated in the prior art, at present still
There is not effective solution scheme.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to propose the voltage compensating method and device of a kind of reduction voltage circuit,
Expected burning voltage compensation effect can be met to the offer of different reduction voltage circuits at different temperatures, promoted thermal adaptability and
Compensation precision, while additional voltage fluctuation is not introduced.
Based on above-mentioned purpose, the one side of the embodiment of the present invention provides a kind of voltage compensating method of reduction voltage circuit, packet
Include following steps:
Building is connected respectively to multiple compensation circuits of reduction voltage circuit, wherein each compensation circuit has used respectively to be had not
With the capacitor of capacitance；
The operating temperature of reduction voltage circuit is determined in reduction voltage circuit work；
A compensation circuit is specified from multiple compensation circuits according to operating temperature, wherein appointed compensation circuit makes
With the capacitor with capacitance relevant to operating temperature；
It the use of appointed compensation circuit is reduction voltage circuit offset voltage with output rated voltage.
In some embodiments, reduction voltage circuit is BUCK reduction voltage circuit；Capacitor used in multiple compensation circuits is tool
There is the MLCC capacitor of temperature damping's effect.
In some embodiments, include: come a compensation circuit specified from multiple compensation circuits according to operating temperature
Applicable temperature range is determined according to operating temperature；
An applicable compensation circuit is specified from multiple compensation circuits according to applicable temperature range.
In some embodiments, temperature range includes low temperature, room temperature, three kinds of high temperature, wherein low temperature refer to 0 degree hereinafter, often
Temperature refers to that 0 to 40 degree, high temperature refer to 40 degree or more.
In some embodiments, multiple compensation circuits include the three kinds of compensation electricity for adapting to low temperature, room temperature, high temperature respectively
Road, wherein every kind of compensation circuit is mended using the capacitor with different capacitances with reaching identical voltage at different temperatures
Repay effect.
In some embodiments, each compensation circuit has also used the resistor with different resistance values not respectively
Reach identical voltage compensation effect under synthermal.
In some embodiments, constructing multiple compensation circuits includes: the resistance for making the resistor in different compensation circuits
Value is reduced with the raising of the capacitance of capacitor.
In some embodiments, reduction voltage circuit includes chip；Reduction voltage circuit is determined when reduction voltage circuit works by chip
Operating temperature, and according to operating temperature come from multiple compensation circuits specify an applicable compensation circuit.
The another aspect of the embodiment of the present invention additionally provides a kind of voltage compensating device of reduction voltage circuit, comprising:
Multiple compensation circuits, are connected respectively to reduction voltage circuit, are respectively provided with the capacitor of different capacitances, for not
With being reduction voltage circuit offset voltage under operating temperature, it is allowed to output rated voltage；
Chip is connected to multiple compensation circuits and reduction voltage circuit, is configured to determine decompression electricity when reduction voltage circuit works
The operating temperature on road, and an applicable compensation circuit is specified from multiple compensation circuits according to operating temperature.
The another aspect of the embodiment of the present invention additionally provides a kind of reduction voltage circuit, the voltage with above-mentioned reduction voltage circuit
Compensation device.
The present invention have following advantageous effects: the voltage compensating method of reduction voltage circuit provided in an embodiment of the present invention with
Device is connected respectively to multiple compensation circuits of reduction voltage circuit by constructing, wherein each compensation circuit has used respectively to be had
The capacitor of different capacitances determines the operating temperature of reduction voltage circuit in reduction voltage circuit work, according to operating temperature come from more
A compensation circuit is specified in a compensation circuit, wherein appointed compensation circuit, which has used, has electricity relevant to operating temperature
The capacitor of capacitance is reduction voltage circuit offset voltage using appointed compensation circuit with the technical side of output rated voltage
Case can meet expected burning voltage compensation effect to the offer of different reduction voltage circuits at different temperatures, promote Acclimation temperature
Property and compensation precision, while additional voltage fluctuation is not introduced.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is the flow diagram of the voltage compensating method of reduction voltage circuit provided by the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
The embodiment of the present invention is further described in attached drawing.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first ", " second " do not answer only for the convenience of statement
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
Based on above-mentioned purpose, the first aspect of the embodiment of the present invention, proposing one kind can be at different temperatures to not
The embodiment for meeting the method for expected burning voltage compensation effect is provided with reduction voltage circuit.Shown in fig. 1 is offer of the present invention
Reduction voltage circuit voltage compensating method embodiment flow diagram.
The voltage compensating method of the reduction voltage circuit, comprising the following steps:
Step S101, building is connected respectively to multiple compensation circuits of reduction voltage circuit, wherein each compensation circuit makes respectively
With the capacitor with different capacitances；
Step S103 determines the operating temperature of reduction voltage circuit in reduction voltage circuit work；
Step S105 specifies a compensation circuit according to operating temperature, wherein appointed from multiple compensation circuits
Compensation circuit has used the capacitor with capacitance relevant to operating temperature；
Step S107 is reduction voltage circuit offset voltage using appointed compensation circuit with output rated voltage.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, Ke Yitong
Computer program is crossed to instruct related hardware and complete, the program can be stored in a computer-readable storage medium,
The program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can for magnetic disk,
CD, read-only memory (ROM) or random access memory (RAM) etc..The embodiment of the computer program, Ke Yida
The effect identical or similar to corresponding aforementioned any means embodiment.
In some embodiments, reduction voltage circuit is BUCK reduction voltage circuit；Capacitor used in multiple compensation circuits is tool
There is the MLCC capacitor of temperature damping's effect.
In some embodiments, include: come a compensation circuit specified from multiple compensation circuits according to operating temperature
Applicable temperature range is determined according to operating temperature；
An applicable compensation circuit is specified from multiple compensation circuits according to applicable temperature range.
In some embodiments, temperature range includes low temperature, room temperature, three kinds of high temperature, wherein low temperature refer to 0 degree hereinafter, often
Temperature refers to that 0 to 40 degree, high temperature refer to 40 degree or more.
In some embodiments, multiple compensation circuits include the three kinds of compensation electricity for adapting to low temperature, room temperature, high temperature respectively
Road, wherein every kind of compensation circuit is mended using the capacitor with different capacitances with reaching identical voltage at different temperatures
Repay effect.
Operating temperature is divided into low temperature, room temperature and three kinds of high temperature by the embodiment of the present invention, and is selected different temperature ranges
Capacitor and resistance value suitable for the temperature range is taken to carry out design compensation circuit, BUCK decompression electricity within the scope of temperature different in this way
Lu Junneng stabilization, accurate output rated voltage, and then ensure that the stabilization and reliability of server work.
It will be appreciated by those skilled in the art that the structure of the compensation circuit of the BUCK reduction voltage circuit of the prior art all with molding, and
And the calculating of capacitor, resistance is all the common knowledge of this field in compensation circuit, compensation circuit board cabling mode also
Through fixation.After the capacitor needed for calculating compensation circuit and resistance value, it is contemplated that MLCC is directed to not with the case where temperature damping
With temperature range increasing or decreasing capacitance, resistance value, thus design low temperature, room temperature and high temperature three compensate back
Road.
In some embodiments, each compensation circuit has also used the resistor with different resistance values not respectively
Reach identical voltage compensation effect under synthermal.
In some embodiments, constructing multiple compensation circuits includes: the resistance for making the resistor in different compensation circuits
Value is reduced with the raising of the capacitance of capacitor.
Disclosed method is also implemented as the computer program executed by CPU, the calculating according to embodiments of the present invention
Machine program may be stored in a computer readable storage medium.When the computer program is executed by CPU, executes the present invention and implement
The above-mentioned function of being limited in method disclosed in example.Above method step also can use controller and for storing so that controlling
Device realizes that the computer readable storage medium of the computer program of above-mentioned steps is realized.
In some embodiments, reduction voltage circuit includes chip；Reduction voltage circuit is determined when reduction voltage circuit works by chip
Operating temperature, and according to operating temperature come from multiple compensation circuits specify an applicable compensation circuit.
Those skilled in the art will also understand is that, the various illustrative steps in conjunction with described in disclosure herein can be by
It is embodied as the combination of electronic hardware, computer software or both.In order to clearly demonstrate this interchangeability of hardware and software,
General description has been carried out to it with regard to the function of various illustrated steps.This function is implemented as software or quilt
It is embodied as hardware to depend on concrete application and be applied to the design constraint of whole system.Those skilled in the art can be for every
Kind concrete application realizes the function in various ways, but this realization decision should not be interpreted as causing a departure from this hair
Bright embodiment scope of disclosure.
From above-described embodiment as can be seen that the voltage compensating method of reduction voltage circuit provided in an embodiment of the present invention, passes through structure
The multiple compensation circuits for being connected respectively to reduction voltage circuit are built, wherein each compensation circuit has been used respectively with different capacitances
Capacitor determines the operating temperature of reduction voltage circuit in reduction voltage circuit work, according to operating temperature come from multiple compensation circuits
A compensation circuit is specified, wherein appointed compensation circuit has used the capacitor with capacitance relevant to operating temperature
Device is reduction voltage circuit offset voltage using appointed compensation circuit with the technical solution of output rated voltage, can be not
Synthermal lower provide different reduction voltage circuits meets expected burning voltage compensation effect, promotes thermal adaptability and compensation is smart
Degree, while additional voltage fluctuation is not introduced.
It is important to note that each step in each embodiment of the voltage compensating method of above-mentioned reduction voltage circuit is equal
It can intersect, replace, increase, delete, therefore, the voltage compensation in reduction voltage circuit of these reasonable permutation and combination transformation
Method should also be as belonging to the scope of protection of the present invention, and protection scope of the present invention should not be confined to the embodiment it
On.
Based on above-mentioned purpose, the second aspect of the embodiment of the present invention, proposing one kind can be at different temperatures to not
The embodiment for meeting the device of expected burning voltage compensation effect is provided with reduction voltage circuit.Described device includes:
Multiple compensation circuits, are connected respectively to reduction voltage circuit, are respectively provided with the capacitor of different capacitances, for not
With being reduction voltage circuit offset voltage under operating temperature, it is allowed to output rated voltage；
Chip is connected to multiple compensation circuits and reduction voltage circuit, is configured to determine decompression electricity when reduction voltage circuit works
The operating temperature on road, and an applicable compensation circuit is specified from multiple compensation circuits according to operating temperature.
It can be various electric terminal equipments, such as mobile phone, a number that the embodiment of the present invention, which discloses described device, equipment etc.,
Word assistant (PDA), tablet computer (PAD), smart television etc., are also possible to large-scale terminal device, such as server, therefore this hair
Protection scope disclosed in bright embodiment should not limit as certain certain types of device, equipment.The embodiment of the present invention discloses described
Client can be with the combining form of electronic hardware, computer software or both be applied to any one of the above electric terminal
In equipment.
Based on above-mentioned purpose, the third aspect of the embodiment of the present invention, proposing one kind can provide at different temperatures
The embodiment of the reduction voltage circuit stabilized the output voltage.The reduction voltage circuit has or is connected to the voltage of above-mentioned reduction voltage circuit to mend
Repay device.
From above-described embodiment as can be seen that the voltage compensating device of reduction voltage circuit provided in an embodiment of the present invention and decompression electricity
Road is connected respectively to multiple compensation circuits of reduction voltage circuit by constructing, wherein each compensation circuit has used respectively to be had not
With the capacitor of capacitance, the operating temperature of reduction voltage circuit is determined in reduction voltage circuit work, according to operating temperature come from multiple
A compensation circuit is specified in compensation circuit, wherein appointed compensation circuit, which has used, has capacitor relevant to operating temperature
The capacitor of value is reduction voltage circuit offset voltage using appointed compensation circuit with the technical solution of output rated voltage,
Expected burning voltage compensation effect can be met to the offer of different reduction voltage circuits at different temperatures, promoted thermal adaptability and
Compensation precision, while additional voltage fluctuation is not introduced.
It is important to note that the voltage compensating device of above-mentioned reduction voltage circuit and the embodiment of reduction voltage circuit use institute
The embodiment of the voltage compensating method of reduction voltage circuit is stated to illustrate the course of work of each module, those skilled in the art can
It is readily conceivable that by the other embodiments of the voltage compensating method of these module applications to the reduction voltage circuit.Certainly, due to
Each step in the voltage compensating method embodiment of the reduction voltage circuit can be intersected, replaces, increases, be deleted, because
This, the voltage compensating device and reduction voltage circuit in the reduction voltage circuit of these reasonable permutation and combination transformation should also be as belonging to this
The protection scope of invention, and protection scope of the present invention should not be confined on the embodiment.
It is exemplary embodiment disclosed by the invention above, it should be noted that in the sheet limited without departing substantially from claim
Under the premise of inventive embodiments scope of disclosure, it may be many modifications and modify.According to open embodiment described herein
The function of claim to a method, step and/or movement be not required to the execution of any particular order.In addition, although the present invention is implemented
Element disclosed in example can be described or be required in the form of individual, but be unless explicitly limited odd number, it is understood that be multiple.
It should be understood that it is used in the present context, unless the context clearly supports exceptions, singular " one
It is a " it is intended to also include plural form.It is to be further understood that "and/or" used herein refers to including one or one
Any and all possible combinations of a above project listed in association.The embodiment of the present invention discloses embodiment sequence number
Description, does not represent the advantages or disadvantages of the embodiments.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that range disclosed by the embodiments of the present invention (including claim) is limited to these examples；In the think of of the embodiment of the present invention
Under road, it can also be combined between the technical characteristic in above embodiments or different embodiments, and exist as described above
Many other variations of the different aspect of the embodiment of the present invention, for simplicity, they are not provided in details.Therefore, all at this
Within the spirit and principle of inventive embodiments, any omission, modification, equivalent replacement, improvement for being made etc. should be included in this hair
Within the protection scope of bright embodiment.
Claims (10)
1. a kind of voltage compensating method of reduction voltage circuit, which comprises the following steps:
Building is connected respectively to multiple compensation circuits of reduction voltage circuit, wherein each compensation circuit has used respectively has different electricity
The capacitor of capacitance；
The operating temperature of reduction voltage circuit is determined in reduction voltage circuit work；
A compensation circuit is specified from the multiple compensation circuit according to the operating temperature, wherein the appointed benefit
It repays circuit and has used the capacitor with capacitance relevant to the operating temperature；
It the use of the appointed compensation circuit is reduction voltage circuit offset voltage with output rated voltage.
2. the method according to claim 1, wherein reduction voltage circuit is BUCK reduction voltage circuit；The multiple compensation
Capacitor used in circuit is the MLCC capacitor with temperature damping's effect.
3. the method according to claim 1, wherein according to the operating temperature come from the multiple compensation circuit
In specify a compensation circuit include:
Applicable temperature range is determined according to the operating temperature；
An applicable compensation circuit is specified from the multiple compensation circuit according to the applicable temperature range.
4. according to the method described in claim 3, it is characterized in that, the temperature range includes low temperature, room temperature, three kinds of high temperature,
Wherein low temperature refers to 0 degree hereinafter, room temperature refers to that 0 to 40 spend, and high temperature refers to 40 degree or more.
5. according to the method described in claim 4, it is characterized in that, the multiple compensation circuit include respectively adapt to low temperature, often
Temperature, three kinds of compensation circuits of high temperature, wherein every kind of compensation circuit is not using the capacitor with different capacitances
Reach identical voltage compensation effect under synthermal.
6. according to the method described in claim 3, it is characterized in that, each compensation circuit has also used respectively has difference
The resistor of resistance value to reach identical voltage compensation effect at different temperatures.
7. according to the method described in claim 6, it is characterized in that, constructing multiple compensation circuits includes: to make different compensation circuits
In the resistance value of resistor reduced with the raising of the capacitance of capacitor.
8. the method according to claim 1, wherein reduction voltage circuit includes chip；By the chip in decompression electricity
Road determines the operating temperature of reduction voltage circuit when working, and one is specified from the multiple compensation circuit according to the operating temperature
A applicable compensation circuit.
9. a kind of voltage compensating device of reduction voltage circuit characterized by comprising
Multiple compensation circuits, are connected respectively to reduction voltage circuit, are respectively provided with the capacitor of different capacitances, in different works
It is reduction voltage circuit offset voltage at a temperature of work, is allowed to output rated voltage；
Chip is connected to the multiple compensation circuit and reduction voltage circuit, is configured to determine decompression electricity when reduction voltage circuit works
The operating temperature on road, and a compensation circuit is specified from the multiple compensation circuit according to the operating temperature.
10. a kind of reduction voltage circuit, which is characterized in that the voltage compensating device with reduction voltage circuit as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910283395.3A CN109951069A (en) | 2019-04-10 | 2019-04-10 | A kind of voltage compensating method and device of reduction voltage circuit |
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| CN201910283395.3A CN109951069A (en) | 2019-04-10 | 2019-04-10 | A kind of voltage compensating method and device of reduction voltage circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581644A (en) * | 2019-09-17 | 2019-12-17 | 广东美的制冷设备有限公司 | capacitance compensation circuit and capacitance compensator |
| CN111198590A (en) * | 2019-12-26 | 2020-05-26 | 苏州浪潮智能科技有限公司 | Method and device for low-temperature control of power supply of server |
| CN113110679A (en) * | 2021-04-25 | 2021-07-13 | 深圳市阿尓法智慧科技有限公司 | Low-power-consumption reference voltage source suitable for nanoscale CMOS (complementary Metal oxide semiconductor) process |
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| CN102437736A (en) * | 2010-09-29 | 2012-05-02 | 北京京东方光电科技有限公司 | Voltage output adjustment method and system of linear power supply chip as well as chip |
| CN208141252U (en) * | 2018-05-21 | 2018-11-23 | 广州大学 | A kind of fast transient response circuit applied to DC-DC converter chip |
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| JPH04172805A (en) * | 1990-11-07 | 1992-06-19 | Nec Eng Ltd | Rc filter circuit |
| CN101814833A (en) * | 2009-02-20 | 2010-08-25 | 精工电子有限公司 | voltage regulator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110581644A (en) * | 2019-09-17 | 2019-12-17 | 广东美的制冷设备有限公司 | capacitance compensation circuit and capacitance compensator |
| CN110581644B (en) * | 2019-09-17 | 2020-12-11 | 广东美的制冷设备有限公司 | Capacitance compensation circuit and capacitance compensator |
| CN111198590A (en) * | 2019-12-26 | 2020-05-26 | 苏州浪潮智能科技有限公司 | Method and device for low-temperature control of power supply of server |
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| CN113110679A (en) * | 2021-04-25 | 2021-07-13 | 深圳市阿尓法智慧科技有限公司 | Low-power-consumption reference voltage source suitable for nanoscale CMOS (complementary Metal oxide semiconductor) process |
| CN113110679B (en) * | 2021-04-25 | 2022-05-20 | 广东宝元通检测股份有限公司 | Low-power-consumption reference voltage source suitable for nanoscale CMOS (complementary Metal oxide semiconductor) process |
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Application publication date: 20190628 |