CN104092373A - DC/DC boost conversion module and circuit - Google Patents
DC/DC boost conversion module and circuit Download PDFInfo
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- CN104092373A CN104092373A CN201410310186.0A CN201410310186A CN104092373A CN 104092373 A CN104092373 A CN 104092373A CN 201410310186 A CN201410310186 A CN 201410310186A CN 104092373 A CN104092373 A CN 104092373A
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- switching tube
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- negative pole
- boosting inverter
- output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to the technical field of electronics and provides a DC/DC boost conversion module and circuit. The DC/DC boost conversion module comprises an inductor, a switching tube, a diode, a capacitor and a protecting unit, the positive pole of an input power source is connected with one end of the inductor, the other end of the inductor is connected with the anode of the diode and the positive pole of the switching tube, the cathode of the diode is connected with the positive pole of the capacitor and the positive pole of an output, the negative pole of the switching tube is connected with the negative pole of the capacitor and one end of the protecting unit, and the other end of the protecting unit is connected with the negative pole of the input power source and the negative pole of the output. The DC/DC boost conversion module and circuit can effectively protect the circuit and system when the switching tube short-circuits and loses efficacy.
Description
Technical field
The invention belongs to electronic technology field, relate in particular to a kind of DC/DC boosting inverter module and circuit.
Background technology
Figure 1 shows that conventional DC/DC boost conversion circuit, input voltage vin, input current Iin, when switch transistor T 1 conducting, inductance L 1 electric current increases; When switch transistor T 1 is turn-offed, inductance L 1 electric current charges to capacitor C 1 by diode D1 afterflow.In this circuit, output voltage V o is greater than input voltage vin, and input current Iin is greater than output current Io, and the electric current that flows through fuse F1 equals Iin.
Fuse F1 shields in this circuit, and particularly during switch transistor T 1 short-circuit failure in figure, now Vin is added in inductance L 1 always, causes inductance L 1 electric current to continue to rise, until protected location F1 blows.But there is a defect to time on photovoltaic product in this circuit application; what input voltage vin accessed is the output of photovoltaic module PV; because photovoltaic module output has short circuit current limitation characteristic; even if cause switch transistor T 1 short-circuit failure; inductance L 1 electric current also only can be elevated to the short circuit current of photovoltaic module PV, even and this short circuit current standard light according under, also only than large 10% left and right of rated current; cannot blow fuse F1 at all, also cannot play the effect of protection system.
As shown in Figure 2; for another kind of conventional DC/DC boost conversion circuit; this translation circuit is arranged on protected location the output of boost conversion circuit; playing a part output short circuit protection, can referenced patent application number be the description that 201310381249.7 name is called the protective circuit > > of a < < voltage increase and current constant power supply output short-circuit.But the circuit in Fig. 2 is only protected output short-circuit, and can not be to doing further system protection after the semiconductor switch pipe T short-circuit failure in circuit.
Along with the attention of country to environmental protection and new forms of energy, photovoltaic generating system is developed widely, and photovoltaic DC-to-AC converter and converter also get a lot of applications.On the other hand, we see that protected location does not play a protective role due to photovoltaic module PV output current limiting characteristic, cause the event of fire to happen occasionally simultaneously.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of DC/DC boosting inverter module and circuit, is intended to solve the problem that existing DC/DC boost conversion circuit cannot be protected circuit when switching tube lost efficacy.
The embodiment of the present invention is to realize like this; a kind of DC/DC boosting inverter module; comprise inductance, switching tube, diode, electric capacity and protected location; the positive pole of input power is connected with one end of inductance; the other end of inductance connects the anode of diode and the positive pole of switching tube; the negative electrode of diode connects the positive pole of electric capacity and the positive pole of output, and the negative pole of switching tube connects the negative pole of electric capacity and one end of protected location, and the other end of described protected location connects the negative pole of input power and the negative pole of output.
Further, described switching tube is metal-oxide-semiconductor, the D utmost point of the just very metal-oxide-semiconductor of described switching tube, the S utmost point that the negative pole of described switching tube is metal-oxide-semiconductor.
Further, described switching tube is insulated gate bipolar transistor IGBT, the C utmost point of the just very IGBT of described switching tube, the E utmost point that the negative pole of described switching tube is IGBT.
Further, described protected location is automatic protector part.
Further, described protected location is switching device.
Further, described input power is at least one group of photovoltaic module.
Further, described input power is two groups of photovoltaic modulies.
The present invention also provides a kind of DC/DC boost conversion circuit, and described device comprises at least two DC/DC boosting inverter modules, and described DC/DC boosting inverter module is parallel between input power and output.
Further, the input power of described DC/DC boost conversion circuit is four groups of photovoltaic modulies.
The embodiment of the present invention provides new DC/DC boosting inverter module and circuit, after protected location being placed in to the negative pole point of switching tube and electric capacity, and the negative pole of input is connected between protected location and negative pole of output end.So, the electric current I f that flows through protected location while normally working equals input current Iin and deducts output current Io, once after switching tube short-circuit failure; electric current I f equals Iin; Iin-Io electric current while being greater than normal work, can disconnect protected location, and circuit and system are played a protective role.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the DC/DC boost conversion circuit of prior art;
Fig. 2 is the circuit diagram of the DC/DC boost conversion circuit of existing band output fuse protection;
Fig. 3 is the circuit diagram of the DC/DC boosting inverter module that provides of the embodiment of the present invention 1;
Fig. 4 is the current trend figure of the DC/DC boosting inverter module that provides of the embodiment of the present invention 1 when switching tube is closed;
Fig. 5 is the current trend figure of the DC/DC boosting inverter module that provides of the embodiment of the present invention 1 when switching tube disconnects;
Fig. 6 is the current trend figure of the DC/DC boosting inverter module that provides of the embodiment of the present invention 1 when switching tube short-circuit failure;
Fig. 7 circuit diagram during as input that is the DC/DC boosting inverter module that provides of the embodiment of the present invention 1 at two groups of photovoltaic cells;
Fig. 8 circuit diagram during as input that is the DC/DC boosting inverter module that provides of the embodiment of the present invention 2 at four groups of photovoltaic cells;
Fig. 9 is the circuit diagram of the DC/DC boosting inverter module that provides of the embodiment of the present invention 3.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
As shown in Figure 3, the embodiment of the present invention proposes a kind of DC/DC boosting inverter module, comprise inductance L 2, switch transistor T 2, diode D2, capacitor C 2 and protected location F2 (in the present embodiment, adopting fuse), the positive pole of input power Vin is connected with one end of inductance L 2, the other end of inductance L 2 connects the anode of diode D2 and the positive pole of switch transistor T 2, the negative electrode of diode D2 connects the positive pole of capacitor C 2 and the positive pole of output, and the negative pole of switch transistor T 2 connects the negative pole of capacitor C 2 and one end of fuse F2; The other end of fuse F2 connects the negative pole of input power Vin and the negative pole of output.Above-mentioned switch transistor T 2 can be metal-oxide-semiconductor or IGBT, when switching tube is metal-oxide-semiconductor, and the D utmost point of metal-oxide-semiconductor just very, the S utmost point that negative pole is metal-oxide-semiconductor; When switching tube is insulated gate bipolar transistor IGBT, the C utmost point of IGBT just very, the E utmost point that negative pole is IGBT.
As shown in Figure 4, when switch transistor T 2 is closed, input voltage is added in inductance L 2 two ends, and input current Iin increases, and this electric current is from the positive pole of input power Vin flow through inductance L 2, switch transistor T 2 and fuse F2, and turns back to input by the negative pole of input power.Diode D2 cut-off simultaneously, capacitor C 2 electric discharges, to maintain the power supply of load R, and output voltage V o is reduced, this discharging current flows out from the positive pole of capacitor C 2, by the positive pole of output, the load R that flows through arrives the negative pole of output, and through overcurrent fuse F2, gets back to the negative pole of capacitor C 2.In this stage, the electric current I f that flows through fuse F2 comprises two parts: the one, and the energy storage electric current of inductance L 2 (being input current Iin), another is the discharging current (being output current Io) of capacitor C 2, two current opposite in direction, make actual current If=Iin-Io, less than Iin.
As shown in Figure 5, when switch transistor T 2 disconnects, the electric current of inductance L 2 can not suddenly change, and by diode D2, to capacitor C 2 and load R, powers.The result of giving capacitor C 2 power supplies is that output voltage V o is raise, and the negative pole that input current Iin arrives input power Vin and output Vo through inductance L 2, diode D2, capacitor C 2, fuse F2 forms a loop.Input current Lin, from the positive pole of input power Vin, passes through the negative pole of positive pole, load R and the output of inductance L 2, diode D2, output simultaneously, and the negative pole that arrives input power Vin forms another loop, realizes the power supply of load R.In this stage, the electric current I f that flows through fuse F2 equals the electric current to capacitor C 2 chargings, and this charging current equals input current Iin, deducts load R electric current (being also output current Io), and actual current If=Iin-Io, less than Iin.
To sum up analyzing, in the stage of above-mentioned switch transistor T 2 normal work, is all to equal input current Iin to deduct output current Io through the electric current I f of overcurrent fuse F2.According to the principle of power-balance, Io=Vin*Iin/Vo, so
If＝Iin-Iin*Vin/Vo＝Iin*(1-Vin/Vo)，
Can find out, if while not boosting, Vo=Vin, If=0; If step-up ratio is one times, Vo=2Vin, If=0.5Iin, the electric current that flows through fuse only has half of input current, and circuit can normally be worked.
When switch transistor T 2 short-circuit failure, as shown in Figure 6, switch transistor T 2 is always in conducting state, and capacitor C 2 cannot be given load R power supply, be that Io is 0, now input current Iin is from the positive pole of input power Vin flow through inductance L 2, switch transistor T 2 and fuse F2, and turns back to input, If=Iin by the negative pole of input power.So If=Iin* (1-Vin/Vo) during according to normal operation, the phenomenon of If=Iin during fault, the rated current that can choose fuse is less than Iin, the protection in the time of so just can simultaneously taking into account operation when normal and switch transistor T 2 short-circuit failure.
According to foregoing circuit operation principle, specific to photovoltaic product, the DC/DC boosting inverter module of the embodiment of the present invention can be used at least one group of photovoltaic module as the input power of DC/DC boosting inverter module.As shown in Figure 7, the input power of DC/DC boosting inverter module is two groups of photovoltaic module PV1 and PV2.Photovoltaic module PV1 and PV2 converge formation input voltage vin through branch road fuse F6, F3, F7, F4 separately.The nominal rating electric current of PV1 and PV2 of take is 8.0A, and standard light is example according to short circuit current 9A, and F6 and F7 choose the fuse of 10～15A.The maximum open circuit voltage 600V of PV1 and PV2, fully loaded MPPT voltage range 250～500V, the output voltage V o=500V of design DC/DC boosting inverter module, is greater than after 500V at input voltage simultaneously, and switch transistor T 3 quits work, output voltage V o=Vin, If=0.When input voltage equals 250V, If=Iin* (1-Vin/Vo)=0.5Iin=0.5*8*2=8A, when input voltage is between 250～500Vdc, input current is while being 8A, If is between 0～8A, be that running current is less than 8A, consider overload factor, F5 can choose the fuse of 10～12A.In switch transistor T 3, break down while causing short circuit like this, if light application ratio a little less than, input current Iin is less than 16A, the reactance that is 16A for rated current so, return cable are all there is no risk, once illumination grow, input current Iin is greater than after 16A, and the fuse F5 quick fuse of 10～12A, just can prevent from burning out reactance and cable.
Embodiment 2
As shown in Figure 8, this embodiment also proposes a kind of DC/DC boost conversion circuit, comprise the DC/DC boosting inverter module shown at least two Fig. 3, described at least two DC/DC boosting inverter modules are parallel between input power and output, that is to say, the input of all DC/DC boosting inverter modules is connected in parallel to input power, and the output of all DC/DC boosting inverter modules is connected in parallel to output.Can use four groups of photovoltaic module PV1, PV2, PV3 and PV4, after branch road fuse separately converges, form input voltage vin.The nominal rating electric current of PV1, PV2, PV3 and PV4 of take is 8.0A, and standard light is example according to short circuit current 9A, and F6 and F7 choose the fuse of 10～15A.The maximum open circuit voltage 1000V of PV1 and PV2, is fully loaded with MPPT voltage range 450～750V, supposes the output voltage V o=800V of DC/DC boosting inverter module, at input voltage, be greater than after 800V simultaneously, switch transistor T 4, T5 quit work, output voltage V o=Vin, If1=If2=0.When input voltage equals 450V, If1=If2=0.5*Iin* (1-Vin/Vo)=0.22Iin=0.22*8*4=7A, at input voltage, be between 450～800Vdc, input current Iin is while being 32A, If is between 0～7A, electric current by fuse F9, F10 during i.e. normal work is less than 7A, consider overload factor, fuse F9, F10 can choose the fuse of 10A.At switch transistor T 4 or T5, break down while causing short circuit failure like this, if light application ratio a little less than, input current Iin is less than 10A, the reactance that is 16A for rated current so, return cable are all there is no risk, once illumination grow, input short current is greater than after 13A, and the fuse F9 of 10A or F10 quick fuse, prevent from burning out reactance and cable etc.Shown in Fig. 8 in circuit owing to there being two groups of independently DC/DC voltage transformation modules, and be generally a short-circuit failure in switch transistor T 4 or switch transistor T 5, after so breaking down, the short circuit current of PV1, PV2, PV3 and tetra-groups of group strings of PV4 flows into fuse F9 or fuse F10 simultaneously, fuse for 10A, as long as the short circuit current of every group of PV branch road has 3A just can blow above, more easily prevent the extension of fault.
The input and output negative pole method of attachment of the conventional DC/DC voltage conversion circuit of improvement by the embodiment of the present invention; the electric current of protected location of flowing through while making normally to work is input and output difference electric current; and be whole input currents during fault mode; can also prevent in situation that diode also damages, the energy of output voltage continues to pour in down a chimney to DC/DC voltage conversion circuit and causes the system failure to expand simultaneously.When the DC/DC voltage transformation module of the embodiment of the present invention and circuit make conventional DC/DC boost conversion circuit can be applied to reliably in photovoltaic product, avoid after semiconductor switch tube short circuit lost efficacy, the short circuit current of photovoltaic module is superimposed upon power cell for a long time, causes fault to expand, even cause fire equivalent risk.
Embodiment 3
As shown in Figure 9, be another embodiment of the present invention.The present embodiment place different from embodiment 1 is: in embodiment 1, protected location is to adopt automatic protector part (as fuse, fuse etc.); and in the present embodiment, be to adopt switching element T 6 (as contactor, thyristor SCR, IGBT, Mos pipe etc.); after switch transistor T 3 in the voltage transformation of DC/DC shown in Fig. 9 module occurs that short-circuit failure causes fault to expand; can further cause the phenomenons such as excess temperature or smog to occur; can be according to these phenomenon of the failure cut-off switch devices T6, thus realize circuit protection function.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a DC/DC boosting inverter module, it is characterized in that, comprise inductance, switching tube, diode, electric capacity and protected location, the positive pole of input power is connected with one end of inductance, the other end of inductance connects the anode of diode and the positive pole of switching tube, the negative electrode of diode connects the positive pole of electric capacity and the positive pole of output, and the negative pole of switching tube connects the negative pole of electric capacity and one end of protected location; The other end of described protected location connects the negative pole of input power and the negative pole of output.
2. DC/DC boosting inverter module as claimed in claim 1, is characterized in that, described switching tube is metal-oxide-semiconductor, the D utmost point of the just very metal-oxide-semiconductor of described switching tube, the S utmost point that the negative pole of described switching tube is metal-oxide-semiconductor.
3. DC/DC boosting inverter module as claimed in claim 1, is characterized in that, described switching tube is insulated gate bipolar transistor IGBT, the C utmost point of the just very IGBT of described switching tube, the E utmost point that the negative pole of described switching tube is IGBT.
4. DC/DC boosting inverter module as claimed in claim 1, is characterized in that, described protected location is automatic protector part.
5. DC/DC boosting inverter module as claimed in claim 1, is characterized in that, described protected location is switching device.
6. DC/DC boosting inverter module as claimed in claim 1, is characterized in that, described input power is at least one group of photovoltaic module.
7. DC/DC boosting inverter module as claimed in claim 6, is characterized in that, described input power is two groups of photovoltaic modulies.
8. a DC/DC boost conversion circuit, is characterized in that, described device comprises at least two DC/DC boosting inverter modules as described in claim 1 to 7 any one, and described at least two DC/DC boosting inverter modules are connected in parallel between input power and output.
9. DC/DC boost conversion circuit as claimed in claim 8, is characterized in that, the input power of described DC/DC boost conversion circuit is four groups of photovoltaic modulies.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310186.0A CN104092373B (en) | 2014-07-01 | 2014-07-01 | DC/DC boost conversion module and circuit |
| PCT/CN2015/075097 WO2015176582A1 (en) | 2014-07-01 | 2015-03-26 | Dc/dc boost conversion module and circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410310186.0A CN104092373B (en) | 2014-07-01 | 2014-07-01 | DC/DC boost conversion module and circuit |
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| Publication Number | Publication Date |
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| CN104092373A true CN104092373A (en) | 2014-10-08 |
| CN104092373B CN104092373B (en) | 2017-05-10 |
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| CN201410310186.0A Active CN104092373B (en) | 2014-07-01 | 2014-07-01 | DC/DC boost conversion module and circuit |
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| CN (1) | CN104092373B (en) |
| WO (1) | WO2015176582A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993696A (en) * | 2015-01-20 | 2015-10-21 | 深圳市长昊机电有限公司 | DC/DC conversion boosting module |
| WO2015176582A1 (en) * | 2014-07-01 | 2015-11-26 | 深圳市长昊机电有限公司 | Dc/dc boost conversion module and circuit |
| WO2015180695A1 (en) * | 2014-12-29 | 2015-12-03 | 深圳市长昊机电有限公司 | Dc/dc boost conversion module and circuit |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987902B (en) * | 2020-08-03 | 2023-09-19 | 哈尔滨工程大学 | DC/DC converter circuit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148860A (en) * | 1986-12-11 | 1988-06-21 | Meidensha Electric Mfg Co Ltd | Overcurrent protecting method for step up/down type chopper circuit |
| JPH08126304A (en) * | 1994-10-28 | 1996-05-17 | Toshiba Emi Ltd | Switching power source |
| CN102255363A (en) * | 2011-07-27 | 2011-11-23 | 广东易事特电源股份有限公司 | Charging circuit topology for solar controller under comprehensive protection and control method thereof |
| CN102820808A (en) * | 2011-06-10 | 2012-12-12 | 特变电工新疆新能源股份有限公司 | Photovoltaic array combiner box |
| CN103095099A (en) * | 2011-10-31 | 2013-05-08 | 英飞特电子（杭州）股份有限公司 | Load drive circuit |
| CN103560490A (en) * | 2013-08-24 | 2014-02-05 | 李玉峰 | Protection circuit of boost constant current power supply output short circuit |
| CN103595247A (en) * | 2013-10-29 | 2014-02-19 | 江苏绿扬电子仪器集团有限公司 | DCDC converter in photovoltaic power generation system |
| CN203554288U (en) * | 2013-11-08 | 2014-04-16 | 天津职业技术师范大学 | Photovoltaic system buck/boost converter |
| CN204190615U (en) * | 2014-07-01 | 2015-03-04 | 深圳市长昊机电有限公司 | DC/DC boosting inverter module and circuit |
| CN104410346A (en) * | 2014-11-25 | 2015-03-11 | 北京四方继保自动化股份有限公司 | AC (alternating current) supply anomaly preventive variable frequency driving unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4621231B2 (en) * | 2007-06-29 | 2011-01-26 | 富士通テン株式会社 | Power supply protection device and electronic control device |
| CN104092373B (en) * | 2014-07-01 | 2017-05-10 | 深圳市长昊机电有限公司 | DC/DC boost conversion module and circuit |
-
2014
- 2014-07-01 CN CN201410310186.0A patent/CN104092373B/en active Active
-
2015
- 2015-03-26 WO PCT/CN2015/075097 patent/WO2015176582A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63148860A (en) * | 1986-12-11 | 1988-06-21 | Meidensha Electric Mfg Co Ltd | Overcurrent protecting method for step up/down type chopper circuit |
| JPH08126304A (en) * | 1994-10-28 | 1996-05-17 | Toshiba Emi Ltd | Switching power source |
| CN102820808A (en) * | 2011-06-10 | 2012-12-12 | 特变电工新疆新能源股份有限公司 | Photovoltaic array combiner box |
| CN102255363A (en) * | 2011-07-27 | 2011-11-23 | 广东易事特电源股份有限公司 | Charging circuit topology for solar controller under comprehensive protection and control method thereof |
| CN103095099A (en) * | 2011-10-31 | 2013-05-08 | 英飞特电子（杭州）股份有限公司 | Load drive circuit |
| CN103560490A (en) * | 2013-08-24 | 2014-02-05 | 李玉峰 | Protection circuit of boost constant current power supply output short circuit |
| CN103595247A (en) * | 2013-10-29 | 2014-02-19 | 江苏绿扬电子仪器集团有限公司 | DCDC converter in photovoltaic power generation system |
| CN203554288U (en) * | 2013-11-08 | 2014-04-16 | 天津职业技术师范大学 | Photovoltaic system buck/boost converter |
| CN204190615U (en) * | 2014-07-01 | 2015-03-04 | 深圳市长昊机电有限公司 | DC/DC boosting inverter module and circuit |
| CN104410346A (en) * | 2014-11-25 | 2015-03-11 | 北京四方继保自动化股份有限公司 | AC (alternating current) supply anomaly preventive variable frequency driving unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015176582A1 (en) * | 2014-07-01 | 2015-11-26 | 深圳市长昊机电有限公司 | Dc/dc boost conversion module and circuit |
| WO2015180695A1 (en) * | 2014-12-29 | 2015-12-03 | 深圳市长昊机电有限公司 | Dc/dc boost conversion module and circuit |
| CN104993696A (en) * | 2015-01-20 | 2015-10-21 | 深圳市长昊机电有限公司 | DC/DC conversion boosting module |
| CN104993696B (en) * | 2015-01-20 | 2018-04-24 | 深圳市长昊机电有限公司 | DC/DC converts boost module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104092373B (en) | 2017-05-10 |
| WO2015176582A1 (en) | 2015-11-26 |
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