CN105630051A - High-precision large-power dc voltage output control method - Google Patents
High-precision large-power dc voltage output control method Download PDFInfo
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- CN105630051A CN105630051A CN201410588325.6A CN201410588325A CN105630051A CN 105630051 A CN105630051 A CN 105630051A CN 201410588325 A CN201410588325 A CN 201410588325A CN 105630051 A CN105630051 A CN 105630051A
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- voltage
- power
- comparison module
- control method
- output control
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Abstract
The invention belongs to the technical field of power electronics, and relates to a high-precision large-power dc voltage output control method. The high-precision large-power dc voltage output control method comprises step A: a reference unit takes a sample of dc voltage, the dc voltage serves as reference dc voltage of each power unit and is sent to a comparison module; step B: a feedback module acquires working dc voltage of each power unit and sends the working dc voltage to the comparison module; step C: the working dc voltage of a plurality of power units is compared with the reference dc voltage of the plurality of power units in the comparison module, and the error value of the working dc voltage of the power units can be obtained; and step D: the comparison module controls the change of output energy in order to make the dc voltage of the power units tend to the reference dc voltage. With respect to the high-precision large-power dc voltage output control method, the input voltage is dynamically adjusted according to different output voltage, the adjusting precision of the power supply can be improved, and large-power output can be achieved.
Description
Technical field
The invention belongs to electric and electronic technical field, particularly relate to the direct voltage output control method of a kind of parallel high-precision high-power.
Background technology
D.C. regulated power supply is one of conventional instrument and equipment of electronic technology, is widely used in the fields such as teaching, scientific research, is that electronic experiment person, electronic designers and circuit developing department carry out testing work and the indispensable electronic machine of Science Institute. In electronic circuit, the DC source being generally required for voltage stabilization is powered. And whole voltage stabilizing process is made up of four parts such as mains transformer, rectification, filtering, voltage stabilizings. But this bad control of stream regulated power supply, reliability is low, interference is big, precision is low and volume is big, complexity is high. D.C. regulated power supply kind has a lot, but all there are following two problems: 1) output is not high. 2) voltage regulation way is all adopt serial voltage regulation circuit, and overload carries out current limliting or the type that dams protection, and circuit constitutes complexity, and the precision of voltage regulation is not high yet.
Summary of the invention
The technique effect of the present invention can overcome drawbacks described above, it is provided that the direct voltage output control method of a kind of high-precision high-power, and it regulates input voltage according to the Different Dynamic of output voltage, both can improve the degree of regulation of power supply, realizes again high-power output simultaneously.
For achieving the above object, the present invention adopts the following technical scheme that it comprises the steps:
Step A: reference cell sampling DC voltage, and as the reference DC voltage of each power cell and deliver to comparison module;
Step B: feedback module gathers the operation DC voltage of power cell, and delivers to comparison module;
Step C: the operation DC voltage of multiple power cells compares on comparison module with reference to DC voltage, and obtains the error amount of power cell operation DC voltage;
Step D: comparison module controls the change of output energy so that the DC voltage of power cell trends towards with reference to DC voltage value.
The direct voltage output control method of the high-precision high-power of the present invention is for above-mentioned technology Problems existing, design the direct voltage output control method of a kind of parallel high-precision high-power, Different Dynamic according to output voltage regulates input voltage, both can improve the degree of regulation of power supply, realize again high-power output simultaneously.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the present invention;
Fig. 2 is the schematic flow sheet of the present invention.
Detailed description of the invention
In order to more clearly state the present invention, below in conjunction with accompanying drawing, the present invention is further described.
As it is shown in figure 1, the base building type DC voltage control system of the present invention, including multiple power cells in parallel successively, feedback module, comparison module and for providing DC voltage detection and controlling of sampling reference cell for multiple power cells; The input of power cell connects external power source by fairing, reference cell is connected with comparing unit, multiple power cells connect comparison module respectively through feedback module, and the outfan of reference cell connects comparison module, and comparison module connects multiple power cell respectively.
As in figure 2 it is shown, the direct voltage output control method of the high-precision high-power of the present invention, comprise the steps:
Step A: reference cell sampling DC voltage, and as the reference DC voltage of each power cell and deliver to comparison module;
Step B: feedback module gathers the operation DC voltage of power cell, and delivers to comparison module;
Step C: the operation DC voltage of multiple power cells compares on comparison module with reference to DC voltage, and obtains the error amount of power cell operation DC voltage;
Step D: comparison module controls the change of output energy so that the DC voltage of power cell trends towards with reference to DC voltage value.
Claims (1)
1. the direct voltage output control method of a high-precision high-power, it is characterised in that comprise the steps:
Step A: reference cell sampling DC voltage, and as the reference DC voltage of each power cell and deliver to comparison module;
Step B: feedback module gathers the operation DC voltage of power cell, and delivers to comparison module;
Step C: the operation DC voltage of multiple power cells compares on comparison module with reference to DC voltage, and obtains the error amount of power cell operation DC voltage;
Step D: comparison module controls the change of output energy so that the DC voltage of power cell trends towards with reference to DC voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588325.6A CN105630051A (en) | 2014-10-28 | 2014-10-28 | High-precision large-power dc voltage output control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588325.6A CN105630051A (en) | 2014-10-28 | 2014-10-28 | High-precision large-power dc voltage output control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105630051A true CN105630051A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410588325.6A Pending CN105630051A (en) | 2014-10-28 | 2014-10-28 | High-precision large-power dc voltage output control method |
Country Status (1)
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| CN (1) | CN105630051A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032232A (en) * | 2018-01-12 | 2019-07-19 | 中芯国际集成电路制造(北京)有限公司 | A kind of electric power controller and power supply device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1677299A (en) * | 2004-02-25 | 2005-10-05 | 美国凹凸微系有限公司 | Low dropout voltage regulator |
| CN1949121A (en) * | 2006-10-25 | 2007-04-18 | 华中科技大学 | Double ring low differential voltage linear voltage stabilizer circuit |
| CN101303609A (en) * | 2008-06-20 | 2008-11-12 | 北京中星微电子有限公司 | Low pressure difference voltage regulator with low load regulation rate |
| CN102147629A (en) * | 2010-02-04 | 2011-08-10 | 立积电子股份有限公司 | Voltage regulator for regulating output voltage at random and relative voltage regulating method |
| CN102566633A (en) * | 2010-12-07 | 2012-07-11 | 华邦电子股份有限公司 | Low-voltage-difference voltage stabilizer |
-
2014
- 2014-10-28 CN CN201410588325.6A patent/CN105630051A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1677299A (en) * | 2004-02-25 | 2005-10-05 | 美国凹凸微系有限公司 | Low dropout voltage regulator |
| CN1949121A (en) * | 2006-10-25 | 2007-04-18 | 华中科技大学 | Double ring low differential voltage linear voltage stabilizer circuit |
| CN101303609A (en) * | 2008-06-20 | 2008-11-12 | 北京中星微电子有限公司 | Low pressure difference voltage regulator with low load regulation rate |
| CN102147629A (en) * | 2010-02-04 | 2011-08-10 | 立积电子股份有限公司 | Voltage regulator for regulating output voltage at random and relative voltage regulating method |
| CN102566633A (en) * | 2010-12-07 | 2012-07-11 | 华邦电子股份有限公司 | Low-voltage-difference voltage stabilizer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032232A (en) * | 2018-01-12 | 2019-07-19 | 中芯国际集成电路制造(北京)有限公司 | A kind of electric power controller and power supply device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |