CN103944397B - Boost type isolated DC/DC converter and control method thereof - Google Patents
Boost type isolated DC/DC converter and control method thereof Download PDFInfo
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Abstract
The invention discloses a Boost type isolated DC/DC converter and a control method of the Boost type isolated DC/DC converter. The Boost type isolated DC/DC converter is composed of a primary side circuit, an auxiliary side circuit, an ideal transformer and a two-port passive network, wherein the primary side circuit is composed of a full-bridge unit circuit where interleaved Boost circuits are integrated, the auxiliary side circuit is composed of a rectifying circuit, the two-port passive circuit is composed of an inductor and a capacitor and is an energy transmitting unit, and the transformer is used for achieving isolation and transformation. Two interleaved Boost input inductors are connected in the middles of two bridge arms of the full-bridge unit circuit, and therefore the gain range of the isolated DC/DC converter is widened, and input current ripples are reduced; frequency-fixed PWM control is adopted, the duty ratio D of a bridge arm switching tube is controlled, and therefore the output voltage can be adjusted. The Boost type isolated DC/DC converter and the control method have the advantages of being wide in input voltage range, small in input current ripple, fixed in switching frequency, capable of allowing soft switching to be achieved, small in switching loss and the like, and are particularly suitable for renewable energy power generation systems and other systems.
Description
Technical field
The present invention relates to the converters technical field in renewable power generation, particularly to a kind of Boost
Type isolation DC/DC changer and its control method.
Background technology
With expanding economy, problem of environmental pollution and energy scarcity problem are increasingly serious.The exploitation profit of regenerative resource
With being to solve one of effective ways of this problem.Renewable energy power generation mainly has wind-force, photovoltaic, water conservancy, fuel cell etc.,
But, the impact of climate condition, regenerative resource has the characteristics that output voltage range is wide.Therefore, in order to be able to effectively sharp
With new forms of energy, need a kind of can in wide input voltage range efficient operation DC/DC changer.
Traditional fixed-frequency control full-bridge converter is although controlling simple and enabling ZVT, but input voltage model
Enclose the filter inductance needing during width big, power density is little；Another aspect change in duty cycle scope is big, especially in high input voltage timeliness
Rate is than relatively low.In order to adapt to the feature of wide input, there are a series of converter topology and its derived structure to be in succession suggested again.This
It is the thought based on assists winding and many level mostly wherein.But both approaches are both needed to increase extra auxiliary element or switch
Pipe, improves cost, controls complicated and can produce extra energy loss.Some scholars also proposed 2 stage converter level level
The topology of connection form, this changer prime typically uses Buck or Boost, by adjusting the dutycycle of front stage converter
Busbar voltage is made to keep stable.But the front stage converter being to increase not only increases the volume of integral transformation device, Buck or Boost
Switching tube in changer is hard switching, and loss is also than larger.
Content of the invention
In order to overcome the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of Boost type isolation DC/
DC changer and its control method, ensure that and realize efficient power conversion under the control source of wide scope.
For achieving the above object, an object of the present invention is achieved through the following technical solutions.
A kind of Boost type isolates DC/DC changer, and it is by input dc power potential source Vin, bus capacitor Cbus, first electricity
Sense L1, the second inductance L2, first switch pipe S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, Two-port netwerk passive
Network N, the first output commutation diode Do1, second output commutation diode Do2, output capacitance Co, output resistance RoBecome with preferable
Depressor T forms；
Described ideal transformer T includes the first winding N1, the second winding N2With tertiary winding N3；
Described Two-port netwerk passive network N has four terminals, respectively terminal a, terminal b, terminal c and terminal d, terminal a with
, in the same side, terminal c and terminal d are in opposite side for terminal b；
Described input dc power potential source VinPositive pole respectively with the first inductance L1One end and the second inductance L2One end
It is connected, input dc power potential source VinNegative pole respectively with second switch pipe S2Source electrode, the 4th switching tube S4Source electrode and mother
Line capacitance CbusNegative pole be connected；First inductance L1The other end respectively with first switch pipe S1Source electrode and second switch pipe S2's
Drain electrode is connected, the second inductance L2The other end respectively with the 3rd switching tube S3Source electrode and the 4th switching tube S4Drain electrode be connected；The
One switching tube S1Drain electrode respectively with the 3rd switching tube S3Drain electrode, bus capacitor CbusPositive pole be connected；
The terminal a and first switch pipe S of described Two-port netwerk passive network N1Source electrode, second switch pipe S2Drain electrode be connected,
Terminal b and the 3rd switching tube S3Source electrode, the 4th switching tube S4Drain electrode be connected, terminal c and described ideal transformer T first around
Group N1Same Name of Ends be connected, terminal d and described ideal transformer T the first winding N1Non-same polarity be connected；
First output commutation diode Do1With the second output commutation diode Do2Common cathode connects, the first output rectification two
Pole pipe Do1Anode be connected to described ideal transformer T the second winding N2Same Name of Ends, second output commutation diode Do2Sun
Pole is connected to described ideal transformer T tertiary winding N3Non-same polarity；Output capacitance CoWith output resistance RoParallel connection, they
Positive pole is connected to the first output commutation diode Do1Negative electrode, their negative pole respectively with described ideal transformer T second winding
N2Non-same polarity and tertiary winding N3Same Name of Ends be connected.
In Boost type of the present invention isolation DC/DC changer, described Two-port netwerk passive network N can be phase shift inductance L
Network；Described phase shift inductance L network comprises phase shift inductance L, and one end of phase shift inductance L is connected with terminal a, the other end and terminal
C is connected, and terminal b is joined directly together with terminal d.
In Boost type of the present invention isolation DC/DC changer, described Two-port netwerk passive network N can also be that LC connects
Resonant network；Described LC series resonant network includes resonant inductance LrWith series resonant capacitance Cr, resonant inductance LrOne end even
Connecting terminal a, other end connection terminal c, series resonant capacitance CrOne end connection terminal b, other end connection terminal d.
In Boost type of the present invention isolation DC/DC changer, described Two-port netwerk passive network N can also be LC simultaneously
Connection resonant network；Described LC series resonant network includes resonant inductance LrWith parallel resonance electric capacity Cp, resonant inductance LrOne end
Connection terminal a, other end connection terminal c, parallel resonance electric capacity CpOne end connection terminal b, other end connection terminal d.
In Boost type of the present invention isolation DC/DC changer, described Two-port netwerk passive network N can also be that LCC goes here and there
Series resonant network；Described LCC series parallel resonance network includes resonant inductance Lr, series resonant capacitance CrWith parallel resonance electricity
Hold Cp, resonant inductance LrOne end connection terminal a, other end connection terminal c；Series resonant capacitance CrOne end connection terminal b, another
End connection terminal d；Parallel resonance electric capacity CpOne end connection terminal c, other end connection terminal d.
In Boost type of the present invention isolation DC/DC changer, described Two-port netwerk passive network N can also be that LLC goes here and there
Connection resonant network；Described LLC series resonant network includes resonant inductance Lr, series resonant capacitance CrWith magnetizing inductance Lm, resonance
Inductance LrOne end connection terminal a, other end connection terminal c；Series resonant capacitance CrOne end connection terminal b, other end connection terminal
d；Magnetizing inductance LmOne end connection terminal c, other end connection terminal d.
It is a further object of the present invention to provide a kind of described Boost type isolates the control method of DC/DC changer：The party
Method content is as follows：Using the control determining frequency PWM, operating frequency f of changersIt is consistently equal to resonant frequency fr；Two Boost electricity
Road adopts the control mode of crisscross parallel, first switch pipe S1With the 3rd switching tube S3Dutycycle is D, 180 ° of its phase contrast；The
Two switching tube S2With the 4th switching tube S4Dutycycle be 1-D, phase place also differs from 180 °；When dutycycle D≤0.5, resonant slots electricity
Pressure VtankDutycycle be D；Work as D>When 0.5, resonance tank voltage VtankDutycycle be 1-D；Input voltage VinRelatively wide
In the range of change when, by adjust first switch pipe S1With the 3rd switching tube S3Dutycycle D, change changer entire gain.
Due to adopting technique scheme, compared with prior art, Boost type of the present invention isolation DC/DC changer and its
Control method has the advantages that：
1 present invention is in the range of smaller duty cycle adjustment so that it may realize wide voltage gain scope, input voltage model
Enclose width；
2 two Boost inductance crisscross parallels, significantly reduce ripple and the filtering capacitance of input current.This electric current
Type and input the little DC/DC changer of ripple and be especially suitable for being connected with the regenerative resource power supply system such as photovoltaic, fuel cell；
3 are controlled using determining frequency PWM, are conducive to magnetic elements and filter circuit design；
The all power switch pipes of 4 former limits all can realize that ZVS is open-minded, and the output commutation diode of secondary all can achieve ZCS
Turn off, switching loss is little；
5 after Boost busbar voltage higher, under identical power conditions, reduce primary current effective
Value, reduces conduction loss.
Brief description
Fig. 1 isolates the electrical schematic diagram of DC/DC changer for Boost type of the present invention；
Fig. 2 isolates the PWM mode figure of DC/DC changer for Boost type of the present invention；
Fig. 3 isolates embodiment 1 circuit diagram of DC/DC changer for Boost type of the present invention；
Fig. 4 isolates embodiment 2 circuit diagram of DC/DC changer for Boost type of the present invention；
Fig. 5 isolates embodiment 3 circuit diagram of DC/DC changer for Boost type of the present invention；
Fig. 6 isolates embodiment 4 circuit diagram of DC/DC changer for Boost type of the present invention；
Fig. 7 isolates embodiment 5 circuit diagram of DC/DC changer for Boost type of the present invention；
Fig. 8 isolates the embodiment 2 of DC/DC changer in dutycycle D for Boost type of the present invention<Groundwork ripple when 0.5
Shape figure；
Fig. 9 isolates the embodiment 2 of DC/DC changer in D for Boost type of the present invention<Each stage equivalent circuit when 0.5
Figure.
In figure symbol implication：VinIt is input dc power potential source, VbusIt is busbar voltage, VtankIt is resonant slots input voltage, D
It is first switch pipe S1With the 3rd switching tube S3Dutycycle, TsIt is switch periods, CbusIt is bus capacitor, L1、L2It is first respectively
Inductance and the second inductance, N is Two-port netwerk passive network, and a, b, c, d are four terminals of Two-port netwerk passive network, S1～S4It is
One to the 4th switching tube, LrIt is resonant inductance, CrIt is series resonant capacitance, CpIt is parallel resonance electric capacity, LmIt is magnetizing inductance, IL1、
IL2It is the first inductance L respectively1, the second inductance L2Electric current, ILrIt is resonance current, T is ideal transformer, N1、N2、N3It is respectively
First, second, third winding of ideal transformer T, Do1、Do2It is the first output commutation diode and the second output rectification respectively
Diode, IDo1、IDo2Respectively flow through Do1、Do2Electric current, CoIt is output filter capacitor, RoIt is output resistance, VoFor output voltage,
t0～t6For the time.
Specific embodiment
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings：
A kind of Boost type isolates DC/DC changer, and its electrical schematic diagram is as shown in figure 1, it is by input dc power potential source
Vin, bus capacitor Cbus, the first inductance L1, the second inductance L2, first switch pipe S1, second switch pipe S2, the 3rd switching tube S3,
Four switching tube S4, Two-port netwerk passive network N, first output commutation diode Do1, second output commutation diode Do2, output capacitance
Co, output resistance RoWith ideal transformer T composition；
Described ideal transformer T includes the first winding N1, the second winding N2With tertiary winding N3；
Described Two-port netwerk passive network N has four terminals, respectively terminal a, terminal b, terminal c and terminal d, terminal a with
, in the same side, terminal c and terminal d are in opposite side for terminal b；
Described input dc power potential source VinPositive pole respectively with the first inductance L1One end and the second inductance L2One end
It is connected, input dc power potential source VinNegative pole respectively with second switch pipe S2Source electrode, the 4th switching tube S4Source electrode and mother
Line capacitance CbusNegative pole be connected；First inductance L1The other end respectively with first switch pipe S1Source electrode and second switch pipe S2's
Drain electrode is connected, the second inductance L2The other end respectively with the 3rd switching tube S3Source electrode and the 4th switching tube S4Drain electrode be connected；The
One switching tube S1Drain electrode respectively with the 3rd switching tube S3Drain electrode, bus capacitor CbusPositive pole be connected；
The terminal a and first switch pipe S of described Two-port netwerk passive network N1Source electrode, second switch pipe S2Drain electrode be connected,
Terminal b and the 3rd switching tube S3Source electrode, the 4th switching tube S4Drain electrode be connected, terminal c and described ideal transformer T first around
Group N1Same Name of Ends be connected, terminal d and described ideal transformer T the first winding N1Non-same polarity be connected；
First output commutation diode Do1With the second output commutation diode Do2Common cathode connects, the first output rectification two
Pole pipe Do1Anode be connected to described ideal transformer T the second winding N2Same Name of Ends, second output commutation diode Do2Sun
Pole is connected to described ideal transformer T tertiary winding N3Non-same polarity；Output capacitance CoWith output resistance RoParallel connection, they
Positive pole is connected to the first output commutation diode Do1Negative electrode, their negative pole respectively with described ideal transformer T second winding
N2Non-same polarity and tertiary winding N3Same Name of Ends be connected.
Boost type of the present invention isolates the control method of DC/DC changer：As shown in Fig. 2 adopt determining frequency PWM's
Control, operating frequency f of changersIt is consistently equal to resonant frequency fr；Two Boost circuit adopt the control mode of crisscross parallel,
First switch pipe S1With the 3rd switching tube S3Dutycycle is D, 180 ° of its phase contrast；Second switch pipe S2With the 4th switching tube S4
Dutycycle be 1-D, phase place also differs from 180 °；When dutycycle D≤0.5, resonance tank voltage VtankDutycycle be D, such as Fig. 2
Shown in (a)；Work as D>When 0.5, resonance tank voltage VtankDutycycle be 1-D, if Fig. 2 is (shown in b；Input voltage VinRelatively wide
In the range of change when, by adjust first switch pipe S1, the 3rd switching tube S3Dutycycle D, change changer entire gain.
Boost type of the present invention isolates the embodiment 1 of DC/DC changer as shown in figure 3, its Two-port netwerk passive network of comprising
N is phase shift inductance L network；Described phase shift inductance L network comprises phase shift inductance L, and one end of phase shift inductance L is connected with terminal a,
The other end is connected with terminal c, and terminal b is joined directly together with terminal d.
Boost type of the present invention isolates the embodiment 2 of DC/DC changer as shown in figure 4, its Two-port netwerk passive network of comprising
N is LC series resonant network；Described LC series resonant network includes resonant inductance LrWith series resonant capacitance Cr, resonant inductance
LrOne end connection terminal a, other end connection terminal c, series resonant capacitance CrOne end connection terminal b, other end connection terminal
d.
Boost type of the present invention isolates the embodiment 3 of DC/DC changer as shown in figure 5, its Two-port netwerk passive network of comprising
N is LC series resonant network；Described LC series resonant network includes resonant inductance LrWith parallel resonance electric capacity Cp, resonant inductance
LrOne end connection terminal a, other end connection terminal c, parallel resonance electric capacity CpOne end connection terminal c, terminal b is straight with terminal d
Connect connected.
Boost type of the present invention isolates the embodiment 4 of DC/DC changer as shown in fig. 6, its Two-port netwerk passive network of comprising
N is LCC resonant network；Described LCC resonant network includes resonant inductance Lr, series resonant capacitance Cr and parallel resonance electric capacity Cp,
Resonant inductance LrOne end connection terminal a, other end connection terminal c；Series resonant capacitance CrOne end connection terminal b, the other end connects
Terminal d；Parallel resonance electric capacity CpOne end connection terminal c, other end connection terminal d.
Boost type of the present invention isolates the embodiment 5 of DC/DC changer as shown in fig. 7, its Two-port netwerk passive network of comprising
N is LLC series resonant network；Described LLC series resonant network includes resonant inductance Lr, series resonant capacitance CrWith excitation electricity
Sense Lm, resonant inductance LrOne end connection terminal a, other end connection terminal c；Series resonant capacitance CrOne end connection terminal b, another
End connection terminal d；Magnetizing inductance LmOne end connection terminal c, other end connection terminal d.
Embodiment 2 operation principle isolating DC/DC changer to Boost type of the present invention below is described further.?
Before analysis, first make the following assumptions：1. all power switch pipes are ideal component, do not consider switch time, conduction voltage drop etc.
Parameter；2. all inductance and electric capacity are ideal component, do not consider its parasitic parameter.
Fig. 8 isolates the embodiment 2 of DC/DC changer in dutycycle D for Boost type of the present invention<Groundwork ripple when 0.5
Shape.In switch periods TsInterior, changer has six kinds of operation modes.
1st, switch mode I（t0～t1）：
As shown in Fig. 9 (a), in t0Before moment, the 4th switching tube S4Turn on, t0Moment, first switch pipe S1Conducting.t0
～t1In this period, resonance tank voltage VtankEqual to busbar voltage Vbus, transformator N1Winding voltage is clamped by output voltage, humorous
Shake inductance LrWith resonant capacitance CrCarry out resonance, resonance current iLrRise, former limit transmits energy, the first output rectification two to secondary
Pole pipe Do1Conducting.Meanwhile, the first inductance L1Electric discharge, the second inductance L2Charge, electric current iL1Linear decline, iL2Linear rise.
2nd, switch mode II (t1～t2)：
As shown in Fig. 9 (b), t1Moment second switch pipe S2ZVS is open-minded.First output commutation diode Do1Continue conducting,
But due to resonance tank voltage Vtank=0, input voltage source does not provide energy, and the energy that former limit is transmitted to secondary is completely by Lr、Cr
Resonant network provides, so iLrRapid decline.Due to second switch pipe S2, the 4th switching tube S4Conducting, the first inductance L1With second
Inductance L2Bulk charge, electric current iL1、iL2Linear rise.3rd, switch mode III（t2～t3）：
As shown in Fig. 9 (c), t2Moment, iLrDrop to zero, the first output commutation diode Do1Realize ZCS to turn off.This stage
Interior, Lr、CrNot resonance.First inductance L1With the second inductance L2Bulk charge, electric current iL1、iL2Linear rise.First output rectification two pole
Pipe Do1With the second output commutation diode Do2It is in reverse blocking state, former limit no longer exports energy to secondary, by output electricity
Hold CoPower to the load.
4th, switch mode IV（t3～t4）：
As shown in Fig. 9 (d), t3Moment, the 3rd switching tube S3Conducting.t3～t4In this period, resonance tank voltage VtankDeng
In negative busbar voltage-Vbus, the first winding N of ideal transformer T1Voltage is clamped by output voltage, resonant inductance LrWith resonance electricity
Hold CrStart resonance, resonance current is from iLrBegin to decline from 0, former limit transmits energy, the second output commutation diode D to secondaryo2
Conducting.Meanwhile, the first inductance L1Continue charging, electric current iL1Linear rise, the second inductance L2Start electric discharge, electric current iL2Linearly
Decline.
5th, switch mode V (t4～t5)：
As shown in Fig. 9 (e), t4Moment, the 4th switching tube S4ZVS is open-minded.Second output commutation diode Do2Continue conducting,
But due to resonance tank voltage Vtank=0, input dc power potential source VinDo not provide energy, the energy that former limit is transmitted to secondary is complete
By Lr、CrResonant network provides, so iLrRapid rising.Due to second switch pipe S2, the 4th switching tube S4Conducting, the first inductance
L1With the second inductance L2Bulk charge, electric current iL1、iL2Linear rise.
6th, switch mode VI（t5～t6）：
As shown in Fig. 9 (f), t5Moment, iLrRise to zero, the second output commutation diode Do2Realize ZCS to turn off.This stage
Interior, resonant inductance LrWith resonant capacitance CrDo not carry out resonance.First inductance L1With the second inductance L2Bulk charge, electric current iL1And iL2All
Linear rise.First output commutation diode Do1With the second output commutation diode Do2All reversely end, former limit is no longer to secondary
Output energy, by output capacitance CoPower to the load.
Claims (1)
1. a kind of Boost type isolates DC/DC inverter control method, and this control method is based on the Boost type isolation DC/DC implementing
Changer, it is by input dc power potential source Vin, bus capacitor Cbus, the first inductance L1, the second inductance L2, first switch pipe S1、
Second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, Two-port netwerk passive network N, first output commutation diode Do1,
Two output commutation diode Do2, output capacitance Co, output resistance RoWith ideal transformer T composition；
Described ideal transformer T includes the first winding N1, the second winding N2With tertiary winding N3；
Described Two-port netwerk passive network N has four terminals, respectively terminal a, terminal b, terminal c and terminal d, terminal a and terminal b
In the same side, terminal c and terminal d are in opposite side；
Described input dc power potential source VinPositive pole respectively with the first inductance L1One end and the second inductance L2One end be connected,
Input dc power potential source VinNegative pole respectively with second switch pipe S2Source electrode, the 4th switching tube S4Source electrode and bus capacitor
CbusNegative pole be connected；First inductance L1The other end respectively with first switch pipe S1Source electrode and second switch pipe S2Drain electrode phase
Even, the second inductance L2The other end respectively with the 3rd switching tube S3Source electrode and the 4th switching tube S4Drain electrode be connected；First switch
Pipe S1Drain electrode respectively with the 3rd switching tube S3Drain electrode, bus capacitor CbusPositive pole be connected；
The terminal a and first switch pipe S of described Two-port netwerk passive network N1Source electrode, second switch pipe S2Drain electrode be connected, terminal
B and the 3rd switching tube S3Source electrode, the 4th switching tube S4Drain electrode be connected, terminal c and described ideal transformer T the first winding N1
Same Name of Ends be connected, terminal d and described ideal transformer T the first winding N1Non-same polarity be connected；
First output commutation diode Do1With the second output commutation diode Do2Common cathode connects, the first output commutation diode
Do1Anode be connected to described ideal transformer T the second winding N2Same Name of Ends, second output commutation diode Do2Anode even
It is connected to described ideal transformer T tertiary winding N3Non-same polarity；Output capacitance CoWith output resistance RoParallel connection, their positive pole
It is connected to the first output commutation diode Do1Negative electrode, their negative pole respectively with described ideal transformer T the second winding N2's
Non-same polarity and tertiary winding N3Same Name of Ends be connected；
It is characterized in that：The method content is as follows：Using the control determining frequency PWM, operating frequency f of changersIt is consistently equal to resonance
Frequency fr；Two Boost circuit adopt the control mode of crisscross parallel, first switch pipe S1With the 3rd switching tube S3Dutycycle is equal
For D, 180 ° of its phase contrast；Second switch pipe S2With the 4th switching tube S4Dutycycle be 1-D, phase place also differs from 180 °；Work as duty
During than D≤0.5, resonance tank voltage VtankDutycycle be D；When dutycycle D>When 0.5, resonance tank voltage VtankDutycycle be
1-D；Input voltage VinWhen changing in relatively wide scope, by adjusting first switch pipe S1With the 3rd switching tube S3Duty
Ratio D, changes changer entire gain.
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| CN201410145216.7A CN103944397B (en) | 2014-04-11 | 2014-04-11 | Boost type isolated DC/DC converter and control method thereof |
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| CN201410145216.7A CN103944397B (en) | 2014-04-11 | 2014-04-11 | Boost type isolated DC/DC converter and control method thereof |
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| CN109039116A (en) * | 2018-08-14 | 2018-12-18 | 浙江大学 | A kind of staggered-parallel-type high-frequency isolation type Three-Phase PWM Rectifier |
| CN109130903B (en) * | 2018-08-29 | 2021-07-16 | 昆明理工大学 | Low-voltage high-power wireless charging system with bilateral LCCL-T topology |
| CN109039091A (en) * | 2018-09-12 | 2018-12-18 | 上海交通大学 | A kind of booster circuit applied to wireless power transmission systems |
| CN110061627A (en) * | 2019-05-15 | 2019-07-26 | 华南理工大学 | A kind of two-way DC/DC converter of high-gain suitable for energy-storage system |
| CN110445394B (en) * | 2019-08-12 | 2020-11-13 | 黄山市瑞兴汽车电子有限公司 | High-efficiency GaN power module for supplying power to LED car lamp |
| CN111416521B (en) * | 2020-04-02 | 2022-03-08 | 清华大学 | Isolated boost bidirectional DC-DC converter topological structure |
| CN111669057B (en) * | 2020-05-26 | 2021-05-18 | 中国科学院电工研究所 | DC boost converter and control method thereof |
| CN113162432A (en) * | 2021-05-07 | 2021-07-23 | 哈工大（张家口）工业技术研究院 | Interleaved parallel three-port isolated DC-DC converter |
| CN113285598B (en) * | 2021-05-19 | 2022-11-25 | 哈尔滨工业大学 | Hybrid control structure and method for interleaved Boost converters |
| CN114079384B (en) * | 2021-11-02 | 2024-05-07 | 西安交通大学 | Variable structure LLC converter with wide output voltage range and method |
| CN114024442B (en) * | 2021-11-05 | 2024-03-26 | 南京理工大学 | DCDC isolation converter of two-phase staggered four-switch buck-boost integrated LLC |
| CN115528896B (en) * | 2022-11-28 | 2023-03-10 | 深圳市洛仑兹技术有限公司 | Control method and structure of interleaved parallel topology and AC/DC power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7116012B2 (en) * | 2003-07-30 | 2006-10-03 | General Motors Corporation | Stable power conversion circuits |
| KR100983673B1 (en) * | 2007-09-27 | 2010-09-24 | 서울과학기술대학교산학협력단 | Boost DC-DC converter with high efficiency |
| JP2012050264A (en) * | 2010-08-27 | 2012-03-08 | Minebea Co Ltd | Load driving device |
| KR101140336B1 (en) * | 2010-09-28 | 2012-05-03 | 한국전기연구원 | Isolated buck-boost dc-dc converter |
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