CN107482919A - Control method based on Boost full-bridge isolated converters - Google Patents
Control method based on Boost full-bridge isolated converters Download PDFInfo
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- CN107482919A CN107482919A CN201710502170.3A CN201710502170A CN107482919A CN 107482919 A CN107482919 A CN 107482919A CN 201710502170 A CN201710502170 A CN 201710502170A CN 107482919 A CN107482919 A CN 107482919A
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- Prior art keywords
- switching tube
- switch pipe
- dutycycle
- switch
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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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
-
- 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)
- Dc-Dc Converters (AREA)
Abstract
A kind of control method based on Boost full-bridge isolated converters, the dutycycle D1 and the dutycycle D2 of second switch pipe (S2) and the 3rd switching tube (S3) of first switch pipe (S1) and the 4th switching tube (S4), 0 ＜ D1 ＜ 1, 0 ＜ D2 ＜ 1, and D1 ≠ D2, dutycycle by T switch periods first switch pipe (S1) and the 4th switching tube (S4) is D2, second switch pipe (S2) and the 3rd switching tube (S3) dutycycle are D1, again after T switch periods, the dutycycle of first switch pipe (S1) and the 4th switching tube (S4) reverts to D1, the dutycycle of second switch pipe (S2) and the 3rd switching tube (S3) reverts to D2, move in circles successively.5th switching tube dutycycle is D0,0 ＜ D0 ＜ 1, the sequential of 5th switching tube (S0) changes with the conversion of first switch pipe (S1) and second switch pipe (S2) dutycycle, all the time the complementary conducting of switching tube less with dutycycle in dutycycle D1 and dutycycle D2.
Description
Technical field
The present invention relates to a kind of control method based on Boost full-bridge isolated converters.
Background technology
Boost full-bridge isolated converters have high frequency electrical isolation, and output power, voltage transformating ratio is high, input current
Ripple is small, high reliability during load short circuits, is highly suitable to be applied for the High voltage output DC converting field of insulation request
Close.
The control method of traditional Boost full-bridges isolated converter is specially：During first switch pipe S1 and the 4th switching tube S4
Sequence is consistent, dutycycle D, and second switch pipe S2 and the 3rd switching tube S3 sequential are consistent, dutycycle D, and first switch pipe
S1 and second switch pipe S2 phases differ 180 °, dutycycle 0.5 ＜ D ＜ 1, the 5th switching tube S0 switching tube S1, switching tube S2,
Switching tube S3 and switching tube S4 are turned off when being both turned on.This control method makes the 5th switching tube S0 switching frequency be first switch
2 times of pipe S1, the requirement of switch tube is higher, and loss is big, particularly high-power occasion.
The content of the invention
The shortcomings that to overcome prior art, the present invention propose a kind of control method based on Boost full-bridge isolated converters.
Control method of the present invention reduces the 5th switching tube S0 switching frequency, reduces the ON time of switching tube, reduces loss,
The problem of avoiding the unidirectional magnetic bias of magnetic element simultaneously, further improves system reliability.
The present invention adopts the following technical scheme that to achieve the above object：
Control method of the present invention sends driving letter to each switching tube by the dutycycle and sequential of five switching tubes of regulation
Number, the action of switching tube is realized, controls the output voltage and power output of converter.
The Boost full-bridges isolated converter that the present invention is based on does not control full-bridge, two support electricity by a H full-bridge, one
Appearance, a high frequency transformer, high-frequency inductor and clamp capacitor and the 5th switching tube composition.Wherein H full-bridge is by first switch pipe,
Two switching tubes, the 3rd switching tube and the 4th switching tube composition, first switch pipe and the 4th switching tube sequential are consistent, second switch pipe
It is consistent with the 3rd switching tube sequential, also, when first switch pipe, second switch pipe, the 3rd switching tube and the conducting of the 4th switching tube
Carve identical, the 5th switching tube dutycycle is D0, and switching tube less with dutycycle in first switch pipe and second switch pipe is complementary
Conducting.First switch pipe and the 4th switching tube dutycycle are D1, and second switch pipe and the 3rd switching tube dutycycle are D2, by T
Individual switch periods first switch pipe and the 4th switching tube dutycycle are changed into D2, and second switch pipe and the 3rd switching tube dutycycle are changed into
D1, then after T switch periods, first switch pipe and the 4th switching tube dutycycle revert to D1, second switch pipe and the 3rd
Switching tube dutycycle reverts to D2.
Described switch periods T range is：T ＞ 0.
The sequential of the 5th described switching tube changes with the conversion of first switch pipe and second switch pipe dutycycle.
Brief description of the drawings
Fig. 1 Boost full-bridges isolated converter topology；
Fig. 2 switching tube logic charts.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and the specific embodiments.
As shown in figure 1, the Boost full-bridge isolated converter topologys that the present invention is based on are not controlled entirely by a H full-bridge, one
Bridge, two Support Capacitor Ci, Co, a high frequency transformer T, high-frequency inductor L1 and clamp capacitor Cc and the 5th switching tube S0 groups
Into.Support Capacitor Ci is connected with filter inductance L1, and clamp capacitor Cc connects with the 5th switching tube S0, the support electricity being cascaded
Hold Ci and filter inductance L1 and the clamp capacitor Cc being cascaded are in parallel with H full-bridge progress with the 5th switching tube S0, H full-bridge
Outlet side connection high frequency transformer T sides, high frequency transformer T other side connection do not control full-bridge, do not control full-bridge output finally
Side is in parallel with outlet side Support Capacitor Co, is built into available circuit topology.Wherein H full-bridge is by 4 opening with anti-paralleled diode
Close pipe S1, S2, S3, S4 compositions；Full-bridge is not controlled by 4 diodes D1, D2, D3, D4 compositions.
Control method of the present invention sends driving letter by five switching tube S0 of regulation dutycycle and sequential to each switch
Number, the action of switching tube is realized, controls the output voltage and power output of converter.
The logic of the switching tube is as shown in Figure 2：
H full-bridge is made up of first switch pipe S1, second switch pipe S2, the 3rd switching tube S3 and the 4th switching tube S4, and first
Switching tube S1 and the 4th switching tube S4 sequential are consistent, and second switch pipe S2 and the 3rd switching tube S3 sequential are consistent, first switch pipe
S1, second switch pipe S2, the 3rd switching tube S3 and the 4th switching tube S4 are simultaneously turned on, and the 5th switching tube S0 dutycycles are D0, with
The complementary conducting of the less switching tube of dutycycle, 0 ＜ D0 ＜ 1 in dutycycle D1 and dutycycle D2.
First switch pipe S1 and the 4th switching tube S4 dutycycles are D1, and 0 ＜ D1 ＜ 1, second switch pipe S2 and the 3rd
Switching tube S3 dutycycles are D2,0 ＜ D2 ＜ 1, are become by T switch periods first switch pipe S1 and the 4th switching tube S4 dutycycles
For D2, second switch pipe S2 and the 3rd switching tube S3 dutycycles are changed into D1, then after T switch periods, first switch pipe S1
D1 is reverted to the 4th switching tube S4 dutycycles, second switch pipe S2 and the 3rd switching tube S3 dutycycles revert to D2, T ＞ 0；The
Five switching tube S0 sequential changes with the conversion of first switch pipe S1 and second switch pipe S2 dutycycles, all the time with dutycycle
The complementary conducting of small switching tube.
Compared with traditional control method, present invention decreases the 5th switching tube S0 switching frequency, reduce switching tube
ON time, loss is reduced, the problem of avoiding magnetic element unidirectional magnetic bias, further improve system reliability.
Claims (3)
1. a kind of control method based on Boost full-bridge isolated converters, the Boost full-bridges isolated converter being based on is by one
H full-bridge, a uncontrollable rectifier full-bridge, the 5th switching tube (S0), clamp capacitor (Cc), two Support Capacitors (Ci, Co) and filtering
Inductance (L1) is formed, and H full-bridge is made up of 4 switching tubes with anti-paralleled diode, and respectively first switch pipe (S1), second open
Pipe (S2), the 3rd switching tube (S3) and the 4th switching tube (S4) are closed, the 5th switching tube (S0) is by the switch with anti-paralleled diode
Pipe forms, and first switch pipe (S1) is consistent with the 4th switching tube (S4) sequential, second switch pipe (S2) and the 3rd switching tube (S3)
Sequential is consistent, and first switch pipe (S1), second switch pipe (S2), the 3rd switching tube (S3) and the 4th switching tube (S4) are led simultaneously
Logical, first switch pipe (S1) dutycycle and second switch pipe (S2) dutycycle are unequal；5th switching tube (S0) dutycycle is D0,
Turned on less that switching tube complementation of dutycycle in first switch pipe (S1) and second switch pipe (S2),
It is characterized in that：Described control method is, first switch pipe (S1) and the 4th switching tube (S4) dutycycle are D1, second
Switching tube (S2) and the 3rd switching tube (S3) dutycycle are D2, are switched by T switch periods first switch pipe (S1) and the 4th
Pipe (S4) dutycycle is changed into D2, and second switch pipe (S2) and the 3rd switching tube (S3) dutycycle are changed into D1, then by T switch week
After phase, first switch pipe (S1) and the 4th switching tube (S4) dutycycle revert to D1, second switch pipe (S2) and the 3rd switching tube
(S3) dutycycle reverts to D2.
2. the control method as claimed in claim 1 based on Boost full-bridge isolated converters, it is characterised in that：Described opens
It is T ＞ 0 to close cycle T scope.
3. the control method as claimed in claim 1 based on Boost full-bridge isolated converters, it is characterised in that：Described
The sequential of five switching tubes (S0) changes with the conversion of first switch pipe (S1) and second switch pipe (S2) dutycycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502170.3A CN107482919B (en) | 2017-06-27 | 2017-06-27 | Control method based on Boost full-bridge isolated converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502170.3A CN107482919B (en) | 2017-06-27 | 2017-06-27 | Control method based on Boost full-bridge isolated converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107482919A true CN107482919A (en) | 2017-12-15 |
| CN107482919B CN107482919B (en) | 2019-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502170.3A Active CN107482919B (en) | 2017-06-27 | 2017-06-27 | Control method based on Boost full-bridge isolated converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064415A (en) * | 2018-09-30 | 2020-04-24 | 广东威灵汽车部件有限公司 | Motor control device, method and system and vehicle |
| CN111509954A (en) * | 2020-05-26 | 2020-08-07 | 深圳市雷能混合集成电路有限公司 | Correction control method and device for pulse width modulation signal and switching power supply |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242624A (en) * | 2014-09-05 | 2014-12-24 | 中国科学院电工研究所 | Boost full-bridge circuit inrush starting current restraining method |
| CN104734485A (en) * | 2015-03-26 | 2015-06-24 | 中国科学院电工研究所 | Boost full-bridge circuit start impact current resonance inhibition method |
| CN105140908A (en) * | 2015-09-29 | 2015-12-09 | 中国科学院电工研究所 | Zero-voltage soft-switching control method for photovoltaic high-voltage DC transmission system |
| US20170025962A1 (en) * | 2015-07-21 | 2017-01-26 | Christopher Donovan Davidson | Single stage isolated ac/dc power factor corrected converter |
-
2017
- 2017-06-27 CN CN201710502170.3A patent/CN107482919B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242624A (en) * | 2014-09-05 | 2014-12-24 | 中国科学院电工研究所 | Boost full-bridge circuit inrush starting current restraining method |
| CN104734485A (en) * | 2015-03-26 | 2015-06-24 | 中国科学院电工研究所 | Boost full-bridge circuit start impact current resonance inhibition method |
| US20170025962A1 (en) * | 2015-07-21 | 2017-01-26 | Christopher Donovan Davidson | Single stage isolated ac/dc power factor corrected converter |
| CN105140908A (en) * | 2015-09-29 | 2015-12-09 | 中国科学院电工研究所 | Zero-voltage soft-switching control method for photovoltaic high-voltage DC transmission system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064415A (en) * | 2018-09-30 | 2020-04-24 | 广东威灵汽车部件有限公司 | Motor control device, method and system and vehicle |
| CN111064415B (en) * | 2018-09-30 | 2021-05-18 | 广东威灵汽车部件有限公司 | Motor control device, method and system and vehicle |
| CN111509954A (en) * | 2020-05-26 | 2020-08-07 | 深圳市雷能混合集成电路有限公司 | Correction control method and device for pulse width modulation signal and switching power supply |
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| Publication number | Publication date |
|---|---|
| CN107482919B (en) | 2019-05-17 |
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