CN103944397A - 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 a kind of Boost type isolation DC/DC converter and control method thereof.
Background technology
Along with expanding economy, problem of environmental pollution and energy scarcity problem are day by day serious.The exploitation of regenerative resource are one of effective ways that address this problem.Renewable energy power generation mainly contains wind-force, photovoltaic, water conservancy, fuel cell etc., still, the impact of climate condition, regenerative resource has the wide feature of output voltage range.Therefore, in order effectively to utilize new forms of energy, need a kind of can be in wide input voltage range the DC/DC converter of efficient operation.
Traditional fixed-frequency control full-bridge converter, although control simple and can realize zero voltage switch, the filter inductance needing during wide input voltage range is large, power density is little; Change in duty cycle scope is large on the other hand, and especially when high input voltage, efficiency is lower.In order to adapt to the feature of wide input, there are again a series of converter topology and derived structure thereof to be in succession suggested.Mostly this is wherein the thought based on auxiliary winding and many level.But these two kinds of methods all need to increase extra auxiliary element or switching tube, have improved cost, control complicated and can produce extra energy loss.Some scholar has also proposed the topology of 2 stage converter level cascade form, and this converter prime is generally with Buck or Boost converter, by regulating the duty ratio of front stage converter to make busbar voltage keep stable.But the front stage converter increasing has not only increased the volume of integral transformation device, and the switching tube in Buck or Boost converter is hard switching, and loss is also larger.
Summary of the invention
In order to overcome the above-mentioned problems in the prior art, the object of this invention is to provide a kind of Boost type isolation DC/DC converter and control method thereof, can guarantee to realize efficient power conversion under the voltage input of wide region.
For achieving the above object, one of object of the present invention is achieved through the following technical solutions.
A Boost type isolation DC/DC converter, it is by input dc power potential source V
in, bus capacitor C
bus, the first inductance L
1, the second inductance L
2, the first switching tube S
1, second switch pipe S
2, the 3rd switching tube S
3, the 4th switching tube S
4, two port passive network N, the first output rectifier diode D
o1, the second output rectifier diode D
o2, output capacitance C
o, output resistance R
oform with ideal transformer T;
Described ideal transformer T comprises the first winding N
1, the second winding N
2with tertiary winding N
3;
Described two port passive network N have four terminals, are respectively terminal a, terminal b, terminal c and terminal d, and terminal a and terminal b are in the same side, and terminal c and terminal d are at opposite side;
Described input dc power potential source V
inpositive pole respectively with the first inductance L
1one end and the second inductance L
2one end be connected, input dc power potential source V
innegative pole respectively with second switch pipe S
2source electrode, the 4th switching tube S
4source electrode and bus capacitor C
busnegative pole be connected; The first inductance L
1the other end respectively with the first switching tube S
1source electrode and second switch pipe S
2drain electrode be connected, the second inductance L
2the other end respectively with the 3rd switching tube S
3source electrode and the 4th switching tube S
4drain electrode be connected; The first switching tube S
1drain electrode respectively with the 3rd switching tube S
3drain electrode, bus capacitor C
buspositive pole be connected;
The terminal a of described two port passive network N and the first switching tube S
1source electrode, second switch pipe S
2drain electrode be connected, terminal b and the 3rd switching tube S
3source electrode, the 4th switching tube S
4drain electrode be connected, terminal c and described ideal transformer T the first winding N
1same Name of Ends be connected, terminal d and described ideal transformer T the first winding N
1non-same polarity be connected;
The first output rectifier diode D
o1with the second output rectifier diode D
o2common cathode connects, the first output rectifier diode D
o1anodic bonding to described ideal transformer T the second winding N
2same Name of Ends, the second output rectifier diode D
o2anodic bonding to described ideal transformer T tertiary winding N
3non-same polarity; Output capacitance C
owith output resistance R
oparallel connection, their positive pole is connected to the first output rectifier diode D
o1negative electrode, their negative pole respectively with described ideal transformer T the second winding N
2non-same polarity and tertiary winding N
3same Name of Ends be connected.
In Boost type isolation DC/DC converter of the present invention, two described port passive network N can be phase shift inductance L networks; Described phase shift inductance L network packet is containing phase shift inductance L, and one end of phase shift inductance L is connected with terminal a, and the other end is connected with terminal c, and terminal b is directly connected with terminal d.
In Boost type isolation DC/DC converter of the present invention, two described port passive network N can also be LC series resonance networks; Described LC series resonance network comprises resonant inductance L
rwith series resonance capacitor C
r, resonant inductance L
rone end splicing ear a, other end splicing ear c, series resonance capacitor C
rone end splicing ear b, other end splicing ear d.
In Boost type of the present invention isolation DC/DC converter, two described port passive network N can also be LC series resonant network; Described LC series resonant network comprises resonant inductance L
rwith parallel resonance capacitor C
p, resonant inductance L
rone end splicing ear a, other end splicing ear c, parallel resonance capacitor C
pone end splicing ear b, other end splicing ear d.
In Boost type of the present invention isolation DC/DC converter, two described port passive network N can also be LCC series parallel resonance networks; Described LCC series parallel resonance network comprises resonant inductance L
r, series resonance capacitor C
rwith parallel resonance capacitor C
p, resonant inductance L
rone end splicing ear a, other end splicing ear c; Series resonance capacitor C
rone end splicing ear b, other end splicing ear d; Parallel resonance capacitor C
pone end splicing ear c, other end splicing ear d.
In Boost type of the present invention isolation DC/DC converter, two described port passive network N can also be LLC series resonance networks; Described LLC series resonance network comprises resonant inductance L
r, series resonance capacitor C
rwith magnetizing inductance L
m, resonant inductance L
rone end splicing ear a, other end splicing ear c; Series resonance capacitor C
rone end splicing ear b, other end splicing ear d; Magnetizing inductance L
mone end splicing ear c, other end splicing ear d.
Another object of the present invention is to provide a kind of control method of described Boost type isolation DC/DC converter: the method thes contents are as follows: adopt the fixed control of PWM frequently, the operating frequency f of converter
sall the time equal resonance frequency f
r; Two Boost circuit adopt the control mode of crisscross parallel, the first switching tube S
1with the 3rd switching tube S
3duty ratio is D, 180 ° of its phase differences; Second switch pipe S
2with the 4th switching tube S
4duty ratio be 1-D, phase place also differs from 180 °; When duty ratio D≤0.5, resonant slots voltage V
tankduty ratio be D; When D>0.5, resonant slots voltage V
tankduty ratio be 1-D; Input voltage V
inwhile changing in wider scope, by regulating the first switching tube S
1with the 3rd switching tube S
3duty ratio D, change converter entire gain.
Owing to adopting technique scheme, compared with prior art, Boost type isolation DC/DC converter of the present invention and control method thereof have following beneficial effect:
1 the present invention, within the scope of smaller duty cycle adjustment, just can realize wide voltage gain scope, wide input voltage range;
2 two Boost inductance crisscross parallels, have significantly reduced ripple and the filtered electrical capacitance of input current.This current mode and the little DC/DC converter of input ripple are especially applicable to being connected with the regenerative resource power supply system such as photovoltaic, fuel cell;
3 adopt fixed PWM frequently to control, and are conducive to magnetic elements and filter circuit design;
It is open-minded that the 4 all power switch pipes in former limit all can be realized ZVS, and the output rectifier diode of secondary all can be realized ZCS and turn-off, and switching loss is little;
5 after Boost converter bus voltage ratio higher, under identical power conditions, reduced primary current effective value, reduced conduction loss.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of Boost type isolation DC/DC converter of the present invention;
Fig. 2 is the PWM modulation system figure of Boost type isolation DC/DC converter of the present invention;
Fig. 3 is embodiment 1 circuit diagram of Boost type isolation DC/DC converter of the present invention;
Fig. 4 is embodiment 2 circuit diagrams of Boost type isolation DC/DC converter of the present invention;
Fig. 5 is embodiment 3 circuit diagrams of Boost type isolation DC/DC converter of the present invention;
Fig. 6 is embodiment 4 circuit diagrams of Boost type isolation DC/DC converter of the present invention;
Fig. 7 is embodiment 5 circuit diagrams of Boost type isolation DC/DC converter of the present invention;
Fig. 8 is the embodiment 2 of the Boost type of the present invention isolation DC/DC converter groundwork oscillogram when duty ratio D<0.5;
Fig. 9 is the embodiment 2 of Boost type of the present invention isolation DC/DC converter each stage equivalent circuit diagram when D<0.5.
Symbol implication: V in figure
ininput dc power potential source, V
busbusbar voltage, V
tankbe resonant slots input voltage, D is the first switching tube S
1with the 3rd switching tube S
3duty ratio, T
sswitch periods, C
busbus capacitor, L
1, L
2be respectively the first inductance and the second inductance, N is two port passive networks, and a, b, c, d are four terminals of two port passive networks, S
1～S
4first to fourth switching tube, L
rresonant inductance, C
rseries resonance electric capacity, C
pparallel resonance electric capacity, L
mmagnetizing inductance, I
l1, I
l2it is respectively the first inductance L
1, the second inductance L
2electric current, I
lrbe resonance current, T is ideal transformer, N
1, N
2, N
3respectively first, second, third winding of ideal transformer T, D
o1, D
o2respectively the first output rectifier diode and the second output rectifier diode, I
do1, I
do2flow through respectively D
o1, D
o2electric current, C
ooutput filter capacitor, R
ooutput resistance, V
ofor output voltage, t
0～t
6for the time.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
A Boost type isolation DC/DC converter, as shown in Figure 1, it is by input dc power potential source V for its electrical schematic diagram
in, bus capacitor C
bus, the first inductance L
1, the second inductance L
2, the first switching tube S
1, second switch pipe S
2, the 3rd switching tube S
3, the 4th switching tube S
4, two port passive network N, the first output rectifier diode D
o1, the second output rectifier diode D
o2, output capacitance C
o, output resistance R
oform with ideal transformer T;
Described ideal transformer T comprises the first winding N
1, the second winding N
2with tertiary winding N
3;
Described two port passive network N have four terminals, are respectively terminal a, terminal b, terminal c and terminal d, and terminal a and terminal b are in the same side, and terminal c and terminal d are at opposite side;
Described input dc power potential source V
inpositive pole respectively with the first inductance L
1one end and the second inductance L
2one end be connected, input dc power potential source V
innegative pole respectively with second switch pipe S
2source electrode, the 4th switching tube S
4source electrode and bus capacitor C
busnegative pole be connected; The first inductance L
1the other end respectively with the first switching tube S
1source electrode and second switch pipe S
2drain electrode be connected, the second inductance L
2the other end respectively with the 3rd switching tube S
3source electrode and the 4th switching tube S
4drain electrode be connected; The first switching tube S
1drain electrode respectively with the 3rd switching tube S
3drain electrode, bus capacitor C
buspositive pole be connected;
The terminal a of described two port passive network N and the first switching tube S
1source electrode, second switch pipe S
2drain electrode be connected, terminal b and the 3rd switching tube S
3source electrode, the 4th switching tube S
4drain electrode be connected, terminal c and described ideal transformer T the first winding N
1same Name of Ends be connected, terminal d and described ideal transformer T the first winding N
1non-same polarity be connected;
The first output rectifier diode D
o1with the second output rectifier diode D
o2common cathode connects, the first output rectifier diode D
o1anodic bonding to described ideal transformer T the second winding N
2same Name of Ends, the second output rectifier diode D
o2anodic bonding to described ideal transformer T tertiary winding N
3non-same polarity; Output capacitance C
owith output resistance R
oparallel connection, their positive pole is connected to the first output rectifier diode D
o1negative electrode, their negative pole respectively with described ideal transformer T the second winding N
2non-same polarity and tertiary winding N
3same Name of Ends be connected.
The control method of Boost type isolation DC/DC converter of the present invention: as shown in Figure 2, adopt the fixed control of PWM frequently, the operating frequency f of converter
sall the time equal resonance frequency f
r; Two Boost circuit adopt the control mode of crisscross parallel, the first switching tube S
1with the 3rd switching tube S
3duty ratio is D, 180 ° of its phase differences; Second switch pipe S
2with the 4th switching tube S
4duty ratio be 1-D, phase place also differs from 180 °; When duty ratio D≤0.5, resonant slots voltage V
tankduty ratio be D, as shown in Fig. 2 (a); When D>0.5, resonant slots voltage V
tankduty ratio be 1-D, if Fig. 2 is (as shown in b; Input voltage V
inwhile changing in wider scope, by regulating the first switching tube S
1, the 3rd switching tube S
3duty ratio D, change converter entire gain.
As shown in Figure 3, its two port passive network N that comprise are phase shift inductance L networks to the embodiment 1 of Boost type isolation DC/DC converter of the present invention; Described phase shift inductance L network packet is containing phase shift inductance L, and one end of phase shift inductance L is connected with terminal a, and the other end is connected with terminal c, and terminal b is directly connected with terminal d.
As shown in Figure 4, its two port passive network N that comprise are LC series resonance networks to the embodiment 2 of Boost type isolation DC/DC converter of the present invention; Described LC series resonance network comprises resonant inductance L
rwith series resonance capacitor C
r, resonant inductance L
rone end splicing ear a, other end splicing ear c, series resonance capacitor C
rone end splicing ear b, other end splicing ear d.
As shown in Figure 5, its two port passive network N that comprise are LC series resonant network to the embodiment 3 of Boost type isolation DC/DC converter of the present invention; Described LC series resonant network comprises resonant inductance L
rwith parallel resonance capacitor C
p, resonant inductance L
rone end splicing ear a, other end splicing ear c, parallel resonance capacitor C
pone end splicing ear c, terminal b is directly connected with terminal d.
As shown in Figure 6, its two port passive network N that comprise are LCC resonant networks to the embodiment 4 of Boost type isolation DC/DC converter of the present invention; Described LCC resonant network comprises resonant inductance L
r, series resonance capacitor C r and parallel resonance capacitor C
p, resonant inductance L
rone end splicing ear a, other end splicing ear c; Series resonance capacitor C
rone end splicing ear b, other end splicing ear d; Parallel resonance capacitor C
pone end splicing ear c, other end splicing ear d.
As shown in Figure 7, its two port passive network N that comprise are LLC series resonance networks to the embodiment 5 of Boost type isolation DC/DC converter of the present invention; Described LLC series resonance network comprises resonant inductance L
r, series resonance capacitor C
rwith magnetizing inductance L
m, resonant inductance L
rone end splicing ear a, other end splicing ear c; Series resonance capacitor C
rone end splicing ear b, other end splicing ear d; Magnetizing inductance L
mone end splicing ear c, other end splicing ear d.
Below embodiment 2 operation principles of Boost type isolation DC/DC converter of the present invention are described further.Before analyzing, first make the following assumptions: 1. all power switch pipes are desirable device, do not consider the parameters such as switching time, conduction voltage drop; 2. all inductance and electric capacity are desirable device, do not consider its parasitic parameter.
Fig. 8 is the embodiment 2 of the Boost type of the present invention isolation DC/DC converter groundwork waveform when duty ratio D<0.5.At a switch periods T
sin, converter has six kinds of operation modes.
1, switch mode I(t
0～t
1):
As shown in Fig. 9 (a), at t
0constantly, the 4th switching tube S
4conducting, t
0constantly, the first switching tube S
1conducting.T
0～t
1in this period, resonant slots voltage V
tankequal busbar voltage V
bus, transformer N
1winding voltage is subject to output voltage clamp, resonant inductance L
rwith resonance capacitor C
rcarry out resonance, resonance current i
lrrise, former limit is to secondary transferring energy, and first exports rectifier diode D
o1conducting.Meanwhile, the first inductance L
1electric discharge, the second inductance L
2charging, current i
l1linear decline, i
l2linear rising.
2, switch mode II (t
1～t
2):
As shown in Fig. 9 (b), t
1moment second switch pipe S
2zVS is open-minded.The first output rectifier diode D
o1continue conducting, but due to resonant slots voltage V
tank=0, input voltage source does not provide energy, and the energy that transmit to secondary on former limit is completely by L
r, C
rresonant network provides, so i
lrdecline rapidly.Due to second switch pipe S
2, the 4th switching tube S
4conducting, the first inductance L
1with the second inductance L
2bulk charge, current i
l1, i
l2linear rising.3, switch mode III(t
2～t
3):
As shown in Fig. 9 (c), t
2constantly, i
lrdrop to the zero, first output rectifier diode D
o1realizing ZCS turn-offs.In this stage, L
r, C
rresonance not.The first inductance L
1with the second inductance L
2bulk charge, current i
l1, i
l2linear rising.The first output rectifier diode D
o1with the second output rectifier diode D
o2all, in reverse blocking state, former limit is no longer to secondary output energy, by output capacitance C
opower to the load.
4, switch mode IV(t
3～t
4):
As shown in Fig. 9 (d), t
3constantly, the 3rd switching tube S
3conducting.T
3～t
4in this period, resonant slots voltage V
tankequal negative busbar voltage-V
bus, the first winding N of ideal transformer T
1voltage is subject to output voltage clamp, resonant inductance L
rwith resonance capacitor C
rstart resonance, resonance current is from i
lrsince 0 decline, former limit is to secondary transferring energy, and second exports rectifier diode D
o2conducting.Meanwhile, the first inductance L
1continue charging, current i
l1linear rising, the second inductance L
2start electric discharge, current i
l2linear decline.
5, switch mode V (t
4～t
5):
As shown in Fig. 9 (e), t
4constantly, the 4th switching tube S
4zVS is open-minded.The second output rectifier diode D
o2continue conducting, but due to resonant slots voltage V
tank=0, input dc power potential source V
inenergy is not provided, and the energy that transmit to secondary on former limit is completely by L
r, C
rresonant network provides, so i
lrrise rapidly.Due to second switch pipe S
2, the 4th switching tube S
4conducting, the first inductance L
1with the second inductance L
2bulk charge, current i
l1, i
l2linear rising.
6, switch mode VI(t
5～t
6):
As shown in Fig. 9 (f), t
5constantly, i
lrrise to the zero, second output rectifier diode D
o2realizing ZCS turn-offs.In this stage, resonant inductance L
rwith resonance capacitor C
rdo not carry out resonance.The first inductance L
1with the second inductance L
2bulk charge, current i
l1and i
l2all linear risings.The first output rectifier diode D
o1with the second output rectifier diode D
o2all oppositely cut-offs, former limit is no longer to secondary output energy, by output capacitance C
opower to the load.
Claims (7)
1. Boost type is isolated a DC/DC converter, it is characterized in that:
It is by input dc power potential source V
in, bus capacitor C
bus, the first inductance L
1, the second inductance L
2, the first switching tube S
1, second switch pipe S
2, the 3rd switching tube S
3, the 4th switching tube S
4, two port passive network N, the first output rectifier diode D
o1, the second output rectifier diode D
o2, output capacitance C
o, output resistance R
oform with ideal transformer T;
Described ideal transformer T comprises the first winding N
1, the second winding N
2with tertiary winding N
3;
Described two port passive network N have four terminals, are respectively terminal a, terminal b, terminal c and terminal d, and terminal a and terminal b are in the same side, and terminal c and terminal d are at opposite side;
Described input dc power potential source V
inpositive pole respectively with the first inductance L
1one end and the second inductance L
2one end be connected, input dc power potential source V
innegative pole respectively with second switch pipe S
2source electrode, the 4th switching tube S
4source electrode and bus capacitor C
busnegative pole be connected; The first inductance L
1the other end respectively with the first switching tube S
1source electrode and second switch pipe S
2drain electrode be connected, the second inductance L
2the other end respectively with the 3rd switching tube S
3source electrode and the 4th switching tube S
4drain electrode be connected; The first switching tube S
1drain electrode respectively with the 3rd switching tube S
3drain electrode, bus capacitor C
buspositive pole be connected;
The terminal a of described two port passive network N and the first switching tube S
1source electrode, second switch pipe S
2drain electrode be connected, terminal b and the 3rd switching tube S
3source electrode, the 4th switching tube S
4drain electrode be connected, terminal c and described ideal transformer T the first winding N
1same Name of Ends be connected, terminal d and described ideal transformer T the first winding N
1non-same polarity be connected;
The first output rectifier diode D
o1with the second output rectifier diode D
o2common cathode connects, the first output rectifier diode D
o1anodic bonding to described ideal transformer T the second winding N
2same Name of Ends, the second output rectifier diode D
o2anodic bonding to described ideal transformer T tertiary winding N
3non-same polarity; Output capacitance C
owith output resistance R
oparallel connection, their positive pole is connected to the first output rectifier diode D
o1negative electrode, their negative pole respectively with described ideal transformer T the second winding N
2non-same polarity and tertiary winding N
3same Name of Ends be connected.
2. Boost type isolation DC/DC converter according to claim 1, is characterized in that: two described port passive network N are phase shift inductance L networks; Described phase shift inductance L network packet is containing phase shift inductance L, and one end of phase shift inductance L is connected with terminal a, and the other end is connected with terminal c, and terminal b is directly connected with terminal d.
3. Boost type isolation DC/DC converter according to claim 1, is characterized in that: two described port passive network N are LC series resonance networks; Described LC series resonance network comprises resonant inductance L
rwith series resonance capacitor C
r, resonant inductance L
rone end splicing ear a, other end splicing ear c, series resonance capacitor C
rone end splicing ear b, other end splicing ear d.
4. Boost type isolation DC/DC converter according to claim 1, is characterized in that: two described port passive network N are LC series resonant network; Described LC series resonant network comprises resonant inductance Lr and parallel resonance capacitor C
p, one end splicing ear a of resonant inductance Lr, other end splicing ear c, parallel resonance capacitor C
pone end splicing ear b, other end splicing ear d.
5. Boost type isolation DC/DC converter according to claim 1, is characterized in that: two described port passive network N are LCC series parallel resonance networks; Described LCC series parallel resonance network comprises resonant inductance L
r, series resonance capacitor C
rwith parallel resonance capacitor C
p, resonant inductance L
rone end splicing ear a, other end splicing ear c; Series resonance capacitor C
rone end splicing ear b, other end splicing ear d; Parallel resonance capacitor C
pone end splicing ear c, other end splicing ear d.
6. Boost type isolation DC/DC converter according to claim 1, is characterized in that: two described port passive network N are LLC series resonance networks; Described LLC series resonance network comprises resonant inductance L
r, series resonance capacitor C
rwith magnetizing inductance L
m, resonant inductance L
rone end splicing ear a, other end splicing ear c; Series resonance capacitor C
rone end splicing ear b, other end splicing ear d; Magnetizing inductance L
mone end splicing ear c, other end splicing ear d.
7. the control method of Boost type isolation DC/DC converter according to claim 1, is characterized in that: the method thes contents are as follows: adopt the fixed control of PWM frequently, the operating frequency f of converter
sall the time equal resonance frequency f
r; Two Boost circuit adopt the control mode of crisscross parallel, the first switching tube S
1with the 3rd switching tube S
3duty ratio is D, 180 ° of its phase differences; Second switch pipe S
2with the 4th switching tube S
4duty ratio be 1-D, phase place also differs from 180 °; When duty ratio D≤0.5, resonant slots voltage V
tankduty ratio be D; When D>0.5, resonant slots voltage V
tankduty ratio be 1-D; Input voltage V
inwhile changing in wider scope, by regulating the first switching tube S
1with the 3rd switching tube S
3duty ratio D, change converter entire gain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145216.7A CN103944397B (en) | 2014-04-11 | 2014-04-11 | Boost type isolated DC/DC converter and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410145216.7A CN103944397B (en) | 2014-04-11 | 2014-04-11 | Boost type isolated DC/DC converter and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103944397A true CN103944397A (en) | 2014-07-23 |
| CN103944397B CN103944397B (en) | 2017-02-08 |
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| 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 |
| CN105553283A (en) * | 2016-03-04 | 2016-05-04 | 盐城工学院 | Control method of boost DC-DC converter |
| CN105743127A (en) * | 2016-04-27 | 2016-07-06 | 国电南瑞科技股份有限公司 | Household new energy power generation intelligent control system and control method |
| WO2017041635A1 (en) * | 2015-08-31 | 2017-03-16 | 董武文 | Polarity-based rectifying and filtering method |
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| CN109818503A (en) * | 2017-11-22 | 2019-05-28 | 中兴通讯股份有限公司 | DC-DC converter and DC-DC converter control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050024904A1 (en) * | 2003-07-30 | 2005-02-03 | Kajouke Lateef A. | Stable power conversion circuits |
| KR20090033087A (en) * | 2007-09-27 | 2009-04-01 | 서울산업대학교 산학협력단 | Boost dc-dc converter with high efficiency |
| JP2012050264A (en) * | 2010-08-27 | 2012-03-08 | Minebea Co Ltd | Load driving device |
| KR20120032318A (en) * | 2010-09-28 | 2012-04-05 | 한국전기연구원 | Isolated buck-boost dc-dc converter |
-
2014
- 2014-04-11 CN CN201410145216.7A patent/CN103944397B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050024904A1 (en) * | 2003-07-30 | 2005-02-03 | Kajouke Lateef A. | Stable power conversion circuits |
| KR20090033087A (en) * | 2007-09-27 | 2009-04-01 | 서울산업대학교 산학협력단 | Boost dc-dc converter with high efficiency |
| JP2012050264A (en) * | 2010-08-27 | 2012-03-08 | Minebea Co Ltd | Load driving device |
| KR20120032318A (en) * | 2010-09-28 | 2012-04-05 | 한국전기연구원 | Isolated buck-boost dc-dc converter |
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| WO2017041635A1 (en) * | 2015-08-31 | 2017-03-16 | 董武文 | Polarity-based rectifying and filtering 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 |
| CN105553283A (en) * | 2016-03-04 | 2016-05-04 | 盐城工学院 | Control method of boost DC-DC converter |
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| CN110073583B (en) * | 2016-12-22 | 2020-12-08 | 三菱电机株式会社 | Power conversion device |
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| CN108336908A (en) * | 2017-01-20 | 2018-07-27 | 雅达电子国际有限公司 | With the power switch using the frequency of variation, duty ratio and/or phase controlling to adjust the power supply of output |
| CN107404228A (en) * | 2017-09-14 | 2017-11-28 | 上海英联电子系统有限公司 | A kind of novel wide scope input power translation circuit |
| CN109818503A (en) * | 2017-11-22 | 2019-05-28 | 中兴通讯股份有限公司 | DC-DC converter and DC-DC converter control method |
| CN107959424B (en) * | 2017-12-22 | 2019-09-03 | 北京交通大学 | The two-way isolated form high-gain DC-DC converter of parallel resonance formula |
| CN107959424A (en) * | 2017-12-22 | 2018-04-24 | 北京交通大学 | The two-way isolated form high-gain DC-DC converter of parallel resonance formula |
| CN108696125A (en) * | 2018-06-08 | 2018-10-23 | 哈尔滨工程大学 | A kind of One Buck-Boost converter body control method with duty ratio biasing |
| CN108696125B (en) * | 2018-06-08 | 2020-04-07 | 哈尔滨工程大学 | Buck-Boost converter control method with duty ratio bias |
| 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 |
| CN109130903A (en) * | 2018-08-29 | 2019-01-04 | 昆明理工大学 | A kind of low-pressure high-power wireless charging system of 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 |
| CN110445394A (en) * | 2019-08-12 | 2019-11-12 | 黄山市瑞兴汽车电子有限公司 | High efficiency GaN power module for LED car lamp power supply |
| CN111416521A (en) * | 2020-04-02 | 2020-07-14 | 清华大学 | Isolated boost bidirectional DC-DC converter topological structure |
| CN111669057A (en) * | 2020-05-26 | 2020-09-15 | 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 |
| CN113285598A (en) * | 2021-05-19 | 2021-08-20 | 哈尔滨工业大学 | Hybrid control structure of interleaved parallel Boost converters, hybrid control method of hybrid control structure, and coupling inductance optimization design method |
| CN114079384A (en) * | 2021-11-02 | 2022-02-22 | 西安交通大学 | Variable-structure LLC converter with wide output voltage range and method |
| 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 |
| CN114024442A (en) * | 2021-11-05 | 2022-02-08 | 南京理工大学 | Two-phase interleaved four-switch buck-boost integrated LLC (logic Link control) DCDC (direct current-direct current) isolation converter |
| 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 |
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