CN105186879A - Bidirectional high-gain non-isolated converter and control method thereof - Google Patents
Bidirectional high-gain non-isolated converter and control method thereof Download PDFInfo
- Publication number
- CN105186879A CN105186879A CN201510559790.1A CN201510559790A CN105186879A CN 105186879 A CN105186879 A CN 105186879A CN 201510559790 A CN201510559790 A CN 201510559790A CN 105186879 A CN105186879 A CN 105186879A
- Authority
- CN
- China
- Prior art keywords
- switching tube
- side winding
- electric capacity
- pressure side
- coupling inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a bidirectional high-gain non-isolated converter, belonging to the technical field of a power electronic converter. The bidirectional high-gain non-isolated converter comprises five switching tubes, two coupling inductors, a high-frequency inductor and three capacitors, the two coupling inductors respectively comprises a low-voltage side winding and a high-voltage side winding, the low-voltage side windings of the two coupling inductors are connected in parallel for charging and are connected in series for discharging, and the high-voltage side windings of the two coupling inductors are connected in series for working all the time. Through the series-parallel connection structure of the coupling inductors, the bidirectional high-gain non-isolated converter disclosed by the invention has the ability of high gain specific voltage conversion; with the adoption of duty cycle and phase shift control, controllable bidirectional power transmission of the bidirectional high-gain non-isolated converter can be achieved; and moreover, soft switching of all switching tubes can be achieved, thus, the switching loss can be effectively reduced, and the efficiency is improved. The bidirectional high-gain non-isolated converter is particularly applicable for an occasion with high frequency, high gain and non-isolated bidirectional DC power conversion.
Description
Technical field
The present invention relates to field of power electronics, particularly two-way non-isolated DC-to-DC transformation of electrical energy technical field.
Background technology
Two-way DC converter is one of core apparatus in the electric power systems such as renewable energy power generation, electric automobile, energy-storage system, for realizing bidirectional power between storage battery and DC bus, voltage transformation, realize the controlling functions such as accumulator cell charging and discharging management, DC bus-bar voltage adjustment.
Due to energy storage battery output voltage low (representative value is 12V, 24V etc.), and the excursion of accumulator voltage is wide, and all kinds of distributed DC electric power system is in order to dock with AC network, and it is even higher that its DC bus-bar voltage is generally 400V.The greatly different difference of battery tension and DC bus-bar voltage brings very large technological challenge to two way convertor.First, two way convertor must realize high step-up ratio and high step-down ratio under boosting and step-down two kinds of mode of operations, and namely it should have high voltage gain ratio; Secondly, two way convertor should be able to realize high efficiency conversion in storage battery Width funtion excursion.
Traditional non-isolated two-way DC converter structure is simple, technically also ripe.But, because conventional transducers self can not realize Sofe Switch, and be subject to the impact of MOSFET parasitic body diode, face serious body diode reverse when conventional non-isolated two way convertor is applied to high pressure occasion and recover problem.The Reverse recovery of body diode not only causes very large switching loss, reduces the efficiency of current transformer, and can cause serious due to voltage spikes on switching tube, causes switching tube to lose efficacy, reduces the reliability of current transformer.And when conventional non-isolated two way convertor is applied in the energy-storage system of one end low pressure, other end high pressure, will the problem of more serious step-up ratio and limit duty ratio be faced.Namely in order to meet the requirement of high voltage gain ratio, switching tube has to work in limit duty ratio state.Namely the duty ratio of one of them switching tube is close to 1, the duty ratio of another one switching tube is close to 0, two switching tubes will bear the big current of low-pressure side and on high-tension side high voltage simultaneously, and switch tube voltage, current stress sharply increase, and cause the significantly reduction of efficiency.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of two-way high-gain non-isolated converter, for solving traditional two-way non-isolated DC converter in the technical problem realizing Sofe Switch, body diode reverse is recovered and existed in step-up ratio and limit duty ratio etc.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of two-way high-gain non-isolated converter, by the first switching tube S
1, second switch pipe S
2, the 3rd switching tube S
3, the 4th switching tube S
4with the 5th switching tube S
5, high-frequency inductor L
h, the first electric capacity C
1, the second electric capacity C
2with the 3rd electric capacity C
3, the first coupling inductance T
1with the second coupling inductance T
2form, wherein, the first coupling inductance T
1comprise a low-pressure side winding N
l1with a high-pressure side winding N
h1, the second coupling inductance T
2comprise a low-pressure side winding N
l2with a high-pressure side winding N
h2;
Described first coupling inductance T
1in low-pressure side winding N
l1same Name of Ends be connected in low pressure source V
bpositive pole and second switch pipe S
2drain electrode, low pressure source V
bnegative pole be connected in the second coupling inductance T
2in low-pressure side winding N
l2same Name of Ends and the first switching tube S
1source electrode, the second coupling inductance T
2in low-pressure side winding N
l2non-same polarity be connected in high-voltage power supply V
hnegative pole, the 3rd electric capacity C
3one end, the first electric capacity C
1one end and second switch pipe S
2source electrode, high-voltage power supply V
hpositive pole be connected in the 5th switching tube S
5drain electrode and the 3rd electric capacity C
3the other end, the 5th switching tube S
5source electrode be connected in the second electric capacity C
2one end and the 4th switching tube S
4drain electrode, the second electric capacity C
2the other end be connected in the second coupling inductance T
2in high-pressure side winding N
h2non-same polarity, the second coupling inductance T
2in high-pressure side winding N
h2same Name of Ends be connected in the first coupling inductance T
1in high-pressure side winding N
h1non-same polarity, the first coupling inductance T
1in high-pressure side winding N
h1same Name of Ends be connected in high-frequency inductor L
hone end, high-frequency inductor L
hthe other end be connected in the 3rd switching tube S
3drain electrode, the first electric capacity C
1the other end and the 4th switching tube S
4source electrode, the 3rd switching tube S
3source electrode be connected in the first coupling inductance T
1in low-pressure side winding N
l1non-same polarity and the first switching tube S
1drain electrode.
The control method of above-mentioned two-way high-gain non-isolated converter is as follows:
First switching tube S is set
1with second switch pipe S
2conducting simultaneously turns off, the first switching tube S
1with the 3rd switching tube S
3, the 4th switching tube S
4with the 5th switching tube S
5complementary conducting respectively, the first switching tube S
1with the 4th switching tube S
4duty ratio identical;
By regulating the first switching tube S
1duty ratio maintain the first electric capacity C
1voltage stabilization: namely as the first electric capacity C
1voltage increase by the first switching tube S when being less than set point
1duty ratio; As the first electric capacity C
1voltage reduce the first switching tube S when being greater than set point
1duty ratio;
By regulating the first switching tube S
1with the 4th switching tube S
4between phase shifting angle regulation output power: namely when energy is by low pressure source V
bto high-voltage power supply V
hduring transmission, the first switching tube S is set
1oN time be ahead of the 4th switching tube S
4; When energy is by high-voltage power supply V
hto low pressure source V
bduring transmission, the first switching tube S is set
1oN time lag behind the 4th switching tube S
4.
Beneficial effect:
(1) the present invention is connected by the connection in series-parallel of coupling inductance, makes it possess high voltage gain and compares ability to transform;
(2) by employing two coupling inductances, the voltage and current stress of single coupling inductance is reduced;
(3) Sofe Switch of all switching tubes can be realized, raise the efficiency;
(4) boosting is identical with the control strategy of decompression mode downconverter, controls simply, is easy to realize.
Accompanying drawing explanation
Fig. 1 is the present invention's two-way high-gain non-isolated converter schematic diagram;
Fig. 2 is the electric current and voltage reference direction mark figure of the two-way high-gain non-isolated converter of the present invention;
Fig. 3 is the working waveform figure of two-way high-gain non-isolated converter under boost mode of the present invention;
Fig. 4 is the working waveform figure of two-way high-gain non-isolated converter under decompression mode of the present invention;
Fig. 5 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 0 under boost mode of the present invention;
Fig. 6 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 1 under boost mode of the present invention;
Fig. 7 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 2 under boost mode of the present invention;
Fig. 8 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 3 under boost mode of the present invention;
Fig. 9 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 4 under boost mode of the present invention;
Figure 10 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 5 under boost mode of the present invention;
Figure 11 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 6 under boost mode of the present invention;
Figure 12 is the equivalent circuit diagram of two-way high-gain non-isolated converter when switch mode 7 under boost mode of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, described two-way high-gain non-isolated converter is by five switching tubes, two coupling inductances, high-frequency inductor L
hwith three electric capacity compositions, wherein switching tube comprises the first switching tube S
1, second switch pipe S
2, the 3rd switching tube S
3, the 4th switching tube S
4with the 5th switching tube S
5, coupling inductance comprises the first coupling inductance T
1with the second coupling inductance T
2, the first coupling inductance T
1comprise a low-pressure side winding N
l1with a high-pressure side winding N
h1, the second coupling inductance T
2comprise a low-pressure side winding N
l2with a high-pressure side winding N
h2, electric capacity comprises the first electric capacity C
1, the second electric capacity C
2with the 3rd electric capacity C
3; Described first coupling inductance T
1in low-pressure side winding N
l1same Name of Ends be connected in low pressure source V
bpositive pole and second switch pipe S
2drain electrode, low pressure source V
bnegative pole be connected in the second coupling inductance T
2in low-pressure side winding N
l2same Name of Ends and the first switching tube S
1source electrode, the second coupling inductance T
2in low-pressure side winding N
l2non-same polarity be connected in high-voltage power supply V
hnegative pole, the 3rd electric capacity C
3one end, the first electric capacity C
1one end and second switch pipe S
2source electrode, high-voltage power supply V
hpositive pole be connected in the 5th switching tube S
5drain electrode and the 3rd electric capacity C
3the other end, the 5th switching tube S
5source electrode be connected in the second electric capacity C
2one end and the 4th switching tube S
4drain electrode, the second electric capacity C
2the other end be connected in the second coupling inductance T
2in high-pressure side winding N
h2non-same polarity, the second coupling inductance T
2in high-pressure side winding N
h2same Name of Ends be connected in the first coupling inductance T
1in high-pressure side winding N
h1non-same polarity, the first coupling inductance T
1in high-pressure side winding N
h1same Name of Ends be connected in high-frequency inductor L
hone end, high-frequency inductor L
hthe other end be connected in the 3rd switching tube S
3drain electrode, the first electric capacity C
1the other end and the 4th switching tube S
4source electrode, the 3rd switching tube S
3source electrode be connected in the first coupling inductance T
1in low-pressure side winding N
l1non-same polarity and the first switching tube S
1drain electrode.
Described first switching tube S
1with second switch pipe S
2conducting simultaneously turns off, the first switching tube S
1with the 3rd switching tube S
3, the 4th switching tube S
4with the 5th switching tube S
5complementary conducting respectively, the first switching tube S
1with the 4th switching tube S
4duty ratio identical.By regulating the first switching tube S
1stable duty ratio first electric capacity C
1on voltage, by changing the first switching tube S
1with the 4th switching tube S
4between phase shifting angle regulation output power.
The object of the invention is the non-isolated two-way changing realizing High-efficiency high-gain, in order to realize this object, the present invention introduces the ratio of gains that two coupling inductances energy storage simultaneously electric discharge improves converter, and the further lifting of the ratio of gains is realized by high-pressure side voltage-multiplying circuit, the number of turn and the volume of single coupling inductance can be reduced, add phase shifting control strategy by adopting pulse width modulation and can effectively reduce current effective value in coupling inductance winding, reduce conduction loss, raise the efficiency, boost identical with the control strategy of decompression mode downconverter, namely seamless switching in both modes can be realized, the present invention can realize the Sofe Switch of all switching tubes by appropriate design coupling inductance and high-frequency inductor, the further lifting of implementation efficiency.
With the electric current and voltage reference direction marked in the two-way high-gain non-isolated converter shown in accompanying drawing 2, operation principle of the present invention is described below.
Because two-way high-gain non-isolated converter of the present invention is symmetrical consistent with the operating state under decompression mode in boosting, so place only carries out model analysis to the reversible transducer under boost mode.The key operation waveforms of two-way high-gain non-isolated converter under fig. 3 gives boost mode.The key operation waveforms of two-way high-gain non-isolated converter under fig. 4 shows decompression mode.
The related symbol title occurred in accompanying drawing is as follows: L
m1low-pressure side winding N
l1corresponding equivalent inductance; L
m2low-pressure side winding N
l2corresponding equivalent inductance; u
lHand i
lHbe respectively high-frequency inductor L
hterminal voltage and flow through high-frequency inductor L
helectric current; i
lmfor flowing through the first coupling inductance T
1magnetizing inductance L
m1electric current; i
lfor low pressure source V
boutput current; u
aBbe the first coupling inductance T
1in low-pressure side winding N
l1terminal voltage, be the voltage between voltage node A and B in figure; u
cDbe the first coupling inductance T
1in high-pressure side winding N
h1, the second coupling inductance T
2in high-pressure side winding N
h2with high-frequency inductor L
hterminal voltage after three's series connection, is the voltage between voltage node C and D in figure; t
0, t
1, t
2, t
3, t
4, t
5, t
6, t
7and t
8for the time.
Switch mode 0, corresponding t
0before moment, equivalent electric circuit as shown in Figure 5: the 3rd switching tube S
3with the 5th switching tube S
5conducting, flows through high-frequency inductor L
hcurrent i
lHfor negative value, the first electric capacity C
1with the first electric capacity C
2simultaneously to the 3rd electric capacity C
3with high-voltage power supply V
henergy is provided; t
0moment, low pressure source V
boutput current i
lfor negative value, the first switching tube S
1with second switch pipe S
2body diode conducting, be the first switching tube S
1with second switch pipe S
2no-voltage open condition be provided.
Switch mode 1, corresponding t
1moment, equivalent electric circuit as shown in Figure 6: the first switching tube S
1with second switch pipe S
2no-voltage is open-minded.
Switch mode 2, corresponding t
2moment, equivalent electric circuit as shown in Figure 7: the 5th switching tube S
5turn off, flow through high-frequency inductor L
hin current i
lHfor on the occasion of, current i
lHcommutation is to the 4th switching tube S
4body diode, be the 4th switching tube S
4no-voltage open condition be provided.
Switch mode 3, corresponding t
3moment, equivalent electric circuit as shown in Figure 8: the 4th switching tube S
4no-voltage is open-minded.
Switch mode 4, corresponding t
4moment, equivalent electric circuit as shown in Figure 9: the first switching tube S
1with second switch pipe S
2turn off, low pressure source V
boutput current i
lfor on the occasion of, low pressure source V
boutput current i
lcommutation is to the 3rd switching tube S
3body diode, be the 3rd switching tube S
3no-voltage open and provide condition, t
0moment is to t
4moment flows through high-frequency inductor L
hin current i
lHdo not change.
Switch mode 5, corresponding t
5moment, equivalent electric circuit as shown in Figure 10: the 3rd switching tube S
3no-voltage is open-minded.
Switch mode 6, corresponding t
6moment, equivalent electric circuit as shown in Figure 11: the 4th switching tube S
4turn off, flow through high-frequency inductor L
hin current i
lHfor negative value, current i
lHcommutation is to the 5th switching tube S
5body diode, be the 5th switching tube S
5no-voltage open condition be provided.
Switch mode 7, corresponding t
7moment, equivalent electric circuit as shown in Figure 12: the 5th switching tube S
5no-voltage is open-minded.
Switch mode 8, corresponding t
8in the moment, in the next cycle, the course of work is identical, no longer repeated description.
According to the description of the above-mentioned course of work, the present invention can realize the Sofe Switch of all switching tubes, effectively can improve conversion efficiency.The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a two-way high-gain non-isolated converter, is characterized in that: described two-way high-gain non-isolated converter is by the first switching tube S
1, second switch pipe S
2, the 3rd switching tube S
3, the 4th switching tube S
4with the 5th switching tube S
5, high-frequency inductor L
h, the first electric capacity C
1, the second electric capacity C
2with the 3rd electric capacity C
3, the first coupling inductance T
1with the second coupling inductance T
2form, wherein, the first coupling inductance T
1comprise a low-pressure side winding N
l1with a high-pressure side winding N
h1, the second coupling inductance T
2comprise a low-pressure side winding N
l2with a high-pressure side winding N
h2;
Described first coupling inductance T
1in low-pressure side winding N
l1same Name of Ends be connected in low pressure source V
bpositive pole and second switch pipe S
2drain electrode, low pressure source V
bnegative pole be connected in the second coupling inductance T
2in low-pressure side winding N
l2same Name of Ends and the first switching tube S
1source electrode, the second coupling inductance T
2in low-pressure side winding N
l2non-same polarity be connected in high-voltage power supply V
hnegative pole, the 3rd electric capacity C
3one end, the first electric capacity C
1one end and second switch pipe S
2source electrode, high-voltage power supply V
hpositive pole be connected in the 5th switching tube S
5drain electrode and the 3rd electric capacity C
3the other end, the 5th switching tube S
5source electrode be connected in the second electric capacity C
2one end and the 4th switching tube S
4drain electrode, the second electric capacity C
2the other end be connected in the second coupling inductance T
2in high-pressure side winding N
h2non-same polarity, the second coupling inductance T
2in high-pressure side winding N
h2same Name of Ends be connected in the first coupling inductance T
1in high-pressure side winding N
h1non-same polarity, the first coupling inductance T
1in high-pressure side winding N
h1same Name of Ends be connected in high-frequency inductor L
hone end, high-frequency inductor L
hthe other end be connected in the 3rd switching tube S
3drain electrode, the first electric capacity C
1the other end and the 4th switching tube S
4source electrode, the 3rd switching tube S
3source electrode be connected in the first coupling inductance T
1in low-pressure side winding N
l1non-same polarity and the first switching tube S
1drain electrode.
2. a control method for two-way high-gain non-isolated converter according to claim 1, is characterized in that: arrange the first switching tube S
1with second switch pipe S
2conducting simultaneously turns off, the first switching tube S
1with the 3rd switching tube S
3, the 4th switching tube S
4with the 5th switching tube S
5complementary conducting respectively, the first switching tube S
1with the 4th switching tube S
4duty ratio identical;
By regulating the first switching tube S
1duty ratio maintain the first electric capacity C
1voltage stabilization: namely as the first electric capacity C
1voltage increase by the first switching tube S when being less than set point
1duty ratio; As the first electric capacity C
1voltage reduce the first switching tube S when being greater than set point
1duty ratio;
By regulating the first switching tube S
1with the 4th switching tube S
4between phase shifting angle regulation output power: namely when energy is by low pressure source V
bto high-voltage power supply V
hduring transmission, the first switching tube S is set
1oN time be ahead of the 4th switching tube S
4; When energy is by high-voltage power supply V
hto low pressure source V
bduring transmission, the first switching tube S is set
1oN time lag behind the 4th switching tube S
4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559790.1A CN105186879B (en) | 2015-09-06 | 2015-09-06 | A kind of two-way high-gain non-isolated converter and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559790.1A CN105186879B (en) | 2015-09-06 | 2015-09-06 | A kind of two-way high-gain non-isolated converter and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105186879A true CN105186879A (en) | 2015-12-23 |
| CN105186879B CN105186879B (en) | 2018-03-02 |
Family
ID=54908778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510559790.1A Active CN105186879B (en) | 2015-09-06 | 2015-09-06 | A kind of two-way high-gain non-isolated converter and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105186879B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115714533A (en) * | 2022-11-08 | 2023-02-24 | 东北电力大学 | High-gain X-source direct-current boost converter based on coupling inductance voltage-multiplying unit and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226816A1 (en) * | 2005-04-11 | 2006-10-12 | Yuan Ze University | Boost converter utilizing bi-directional magnetic energy transfer of coupling inductor |
| CN201656768U (en) * | 2009-12-14 | 2010-11-24 | 浙江大学 | Coupled inductor realizing high-gain double voltage boost converter |
| CN102118112A (en) * | 2011-03-31 | 2011-07-06 | 东北大学 | DC-DC converter based on coupling inductors |
| CN103618444A (en) * | 2013-11-15 | 2014-03-05 | 南京航空航天大学 | Three-winding coupling inductance ZVS/ZCS double-tube boost converter |
| CN104868725A (en) * | 2015-04-09 | 2015-08-26 | 南京航空航天大学 | Booster type non-isolated three-port DC converter and control method thereof |
-
2015
- 2015-09-06 CN CN201510559790.1A patent/CN105186879B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226816A1 (en) * | 2005-04-11 | 2006-10-12 | Yuan Ze University | Boost converter utilizing bi-directional magnetic energy transfer of coupling inductor |
| CN201656768U (en) * | 2009-12-14 | 2010-11-24 | 浙江大学 | Coupled inductor realizing high-gain double voltage boost converter |
| CN102118112A (en) * | 2011-03-31 | 2011-07-06 | 东北大学 | DC-DC converter based on coupling inductors |
| CN103618444A (en) * | 2013-11-15 | 2014-03-05 | 南京航空航天大学 | Three-winding coupling inductance ZVS/ZCS double-tube boost converter |
| CN104868725A (en) * | 2015-04-09 | 2015-08-26 | 南京航空航天大学 | Booster type non-isolated three-port DC converter and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵一: "耦合电感倍压单元高增益变流器拓扑形成方法", 《中国博士学位论文全文数据库（电子期刊）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115714533A (en) * | 2022-11-08 | 2023-02-24 | 东北电力大学 | High-gain X-source direct-current boost converter based on coupling inductance voltage-multiplying unit and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105186879B (en) | 2018-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103944397B (en) | Boost type isolated DC/DC converter and control method thereof | |
| CN201656768U (en) | Coupled inductor realizing high-gain double voltage boost converter | |
| CN102946194B (en) | A kind of high-gain alternation and parallel connection boosting converter | |
| CN104506040B (en) | Dual-PWM and phase-shifting control method with the same duty ratio | |
| CN106549577A (en) | The two-way high-gain DC/DC changer of non-isolated and method for controlling frequency conversion | |
| CN203942447U (en) | A kind of ZVT crisscross parallel high-gain formula DC/DC converter | |
| CN101976953A (en) | Isolated bidirectional DC-DC converter realized by coupling inductor | |
| CN102969893A (en) | High-gain boosting type direct-current converter | |
| CN103929058A (en) | Two-phase interleaved converter based on coupled inductors | |
| CN201797441U (en) | Soft switching insulated bi-directional DC/DC converter with coupling inductor | |
| CN103731039A (en) | Two-way direct current converter with high conversion efficiency | |
| CN108400709A (en) | A kind of two-way DC/DC converters of integrated three level of bipolarity of crisscross parallel magnetic | |
| CN105939108A (en) | Switch inductor type quasi-switch voltage-boosting DC-DC converter | |
| CN104218800A (en) | High-reduction-voltage non-isolating-type direct current (DC)/DC converter | |
| CN103391001A (en) | High-gain DCDC converter for MPPT link of photovoltaic inverter | |
| CN206490584U (en) | The two-way DC/DC converter topologies of three level with coupling inductance | |
| CN102723869A (en) | Power converter | |
| CN104283419A (en) | Secondary type high-gain boosting converter with switched capacitors and coupled inductor | |
| CN109327136B (en) | Three-level boosting type direct current conversion topology based on coupling winding unit | |
| CN111342664A (en) | Integrated DC-DC converter and control method thereof | |
| CN103051179A (en) | High step-up ratio voltage doubling structure passive lossless clamped converter | |
| CN103066837A (en) | High gain voltage-multiplying structure active lossless clamping converter | |
| CN107204707A (en) | A kind of two-way isolation DC/DC converter and its control method for being used to suppress peak voltage | |
| CN204068701U (en) | A kind of non-isolation type high step-down ratio DC/DC converter | |
| CN101951155B (en) | Soft switching isolated bidirectional DC-DC converter with coupling inductors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |