CN107658957B - A kind of solar energy movable power supply series connection expansion circuit - Google Patents
A kind of solar energy movable power supply series connection expansion circuit Download PDFInfo
- Publication number
- CN107658957B CN107658957B CN201710637399.8A CN201710637399A CN107658957B CN 107658957 B CN107658957 B CN 107658957B CN 201710637399 A CN201710637399 A CN 201710637399A CN 107658957 B CN107658957 B CN 107658957B
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- series connection
- diode
- connect
- 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.)
- Active
Links
- 230000005669 field effect Effects 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
A kind of solar energy movable power supply series connection expansion circuit, is related to solar energy mobile battery field；Solar battery circuit includes driving circuit, switching circuit, series connection bleeder circuit and clamp circuit；The end a of clamp circuit is connect with outer test points AC1, and the end b of clamp circuit is connect with the end d of series connection bleeder circuit, and the end c of clamp circuit is connect with the end f of the end e of series connection bleeder circuit, switching circuit respectively, the end the c ground connection of clamp circuit；The end i of series connection bleeder circuit and the end j of driving circuit connect, and the end e for bleeder circuit of connecting and the end f of switching circuit connect, and the end g for bleeder circuit of connecting and the end h of switching circuit connect；The end k of driving circuit and the end l of switching circuit connect；The end m of series connection bleeder circuit is connect with the end GD of external solar battery；Circuit is expanded in solar energy movable power supply series connection provided by the invention, improves output voltage, output voltage may be up to 25V, and the expanded circuit is simply easily realized.
Description
Technical field
The present invention relates to a kind of solar energy mobile battery field, electricity is expanded in especially a kind of solar energy movable power supply series connection
Road.
Background technique
Currently, solar energy is gradually used widely in every field as a kind of renewable energy.With photoelectric conversion
The raising of efficiency, the voltage and current that one piece of solar energy movable power supply of small volume can be provided are can satisfy completely to common
The lesser electrical appliance of voltage magnitude charge.But if it is larger to load required voltage, can also be by solar energy movable power supply
It is connected in series.But it can only be attached by outside lead when existing solar energy movable power supply is used in series on the market.
Each solar panel draws power supply and ground wire, is then docked, and influences beautiful and inconvenient.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, a kind of solar energy movable power supply series connection expansion is provided
Circuit, by detecting VAC1The voltage of point judges solar panel location in entirely series connection prolongation structure, such as
Fruit is last block solar panel, then system will carry out work according to the entire series circuit configuration that this plate is last block plate
Make, promotes output voltage, output voltage may be up to 20V, and the expanded circuit is simply easily realized.
Above-mentioned purpose of the invention is achieved by following technical solution:
A kind of solar energy movable power supply series connection expansion circuit, monolithic solar battery circuit include driving circuit, switch electricity
Road, series connection bleeder circuit and clamp circuit；Wherein, the end a of clamp circuit is connect with outer test points AC1, the end b of clamp circuit
It is connect with the end d of series connection bleeder circuit, the end c of clamp circuit connects with the end f of the end e for bleeder circuit of connecting, switching circuit respectively
It connects, the end the c ground connection of clamp circuit；Connect bleeder circuit the end i and driving circuit the end j connect, the end e for bleeder circuit of connecting with
The end f of switching circuit connects, and the end g for bleeder circuit of connecting and the end h of switching circuit connect；The end k of driving circuit and switch electricity
The end l on road connects；The end m of series connection bleeder circuit is connect with the end GD of external solar battery.
Expand circuit in a kind of above-mentioned solar energy movable power supply series connection, the driving circuit include voltage VB, capacitor C1,
Field-effect tube Q1 and resistance R5；Wherein, resistance R5, field-effect tube Q1 and capacitor C1 first parallel circuit of composition parallel with one another；The
One end of one parallel circuit is connect with voltage VB, and the other end of the first parallel circuit and the k point of driving circuit connect.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, the switching circuit includes field-effect tube Q2, electricity
Hinder R4 and resistance R6；Wherein, the second parallel circuit of field-effect tube Q1 and resistance R4 composition, the second parallel circuit and switching circuit
The connection of the end l；One end of resistance R4 and the end h of switching circuit connect；One end of field-effect tube Q2 connect with resistance R6 after with switch
The end f of circuit connects.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, the series connection bleeder circuit includes resistance R1, electricity
Hinder R2 and resistance R3；Wherein, resistance R1, resistance R2 and resistance R3 are sequentially connected in series；The i of one end of resistance R1 and bleeder circuit of connecting
End connection；Resistance R1 is connect with the junction of resistance R2 with the end d of series connection bleeder circuit；The connection of resistance R2 and resistance R3 is punished
It is not connect with the end g, the end m of series connection bleeder circuit；One end of resistance R3 is connect with the end e of series connection bleeder circuit.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, the clamp circuit includes diode D1 and two poles
Pipe D2；Wherein, the end c of the input terminal of diode D2 and clamp circuit connects；The output end of diode D2 is defeated with diode D1's
Enter end connection；The output end of diode D1 is connect with the 3.3V power supply that outside provides；Diode D2 output end and diode D1 are defeated
Enter to hold junction to connect respectively with the end a of clamp circuit, the end b.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, the voltage VB is that solar energy passes through solar-electricity
Voltage after the conversion of pond plate, VB 4.7-5.3V.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, when the series connection of n block solar panel, every piece too
The e point of positive energy battery circuit is connect with the p of adjacent solar battery circuit point；And the end the GD series connection of n block solar panel
Connection；N is positive integer and n≤5.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, when the series connection of n block solar panel, n-th piece
Solar battery circuit, i.e., the field-effect tube Q2 in series circuit in last block solar battery circuit are in an open state；1st
Block, the 2nd piece ..., the solar battery circuit of n-1 block is in off state.
Circuit is expanded in a kind of above-mentioned solar energy movable power supply series connection, when the series connection of n block solar panel, the 1st piece,
2nd piece ..., the equivalent circuit of switching circuit includes diode D3, diode D4, resistance R4 in n-1 block solar battery circuit
With resistance R6；The output with the end l, diode D3 of the input terminal of diode D4, switching circuit respectively of the input terminal of diode D3
End connection；The output end of diode D3 is connect after connecting with resistance R4 with the end l of switching circuit；The output end of diode D3 with open
The end h on powered-down road connects；The output end of diode D4 is connect after connecting with resistance R6 with the end f of switching circuit.
The invention has the following advantages over the prior art:
(1) present invention employs the series connection of independent research to expand module, provides a kind of judgement solar energy movable power supply string
The circuit of method and the series voltage transmitting of connection, and the circuit structure is simple, Yi Shixian；
(2) when the series connection of n block solar panel, the field-effect tube Q2 in n-th piece of solar battery circuit is the present invention
Opening state；1st piece, the 2nd piece ..., the solar battery circuit of n-1 block is in off state, and saves solar battery electricity
Unnecessary device resource waste in road；
(3) present invention employs series connection bleeder circuit, the concatenated flexibility of product is improved, product is realized and independently uses
With the independent assortment being used in series.
Detailed description of the invention
Fig. 1 is that circuit diagram is expanded in the series connection of monolithic solar panel of the present invention；
Fig. 2 is that circuit diagram is expanded in n block solar panel of the present invention series connection；
Fig. 3 is switching circuit schematic equivalent circuit of the present invention；
Fig. 4 is the structural schematic diagram of two pieces of solar panels of solar energy movable power supply of the present invention.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments:
Circuit is expanded in the series connection that the present invention provides a kind of solar energy movable power supply.Pass through the voltage of detection test points, judgement
The solar panel is the location of in entirely series connection prolongation structure, if it is last block solar panel, then system will
It works according to the entire series circuit configuration that this plate is last block plate, promotes output voltage, output voltage can be high
Up to 25V, and the expanded circuit is simply easily realized.
Circuit diagram is expanded for the series connection of monolithic solar panel as shown in Figure 1, as seen from the figure, a kind of mobile electricity of solar energy
Source-series expansion circuit, it is characterised in that: monolithic solar battery circuit includes driving circuit, switching circuit, series connection partial pressure electricity
Road and clamp circuit；Wherein, the end a of clamp circuit is connect with outer test points AC1, and the end b of clamp circuit and partial pressure of connecting are electric
The end d on road connects, and the end c of clamp circuit is connect with the end f of the end e of series connection bleeder circuit, switching circuit respectively, clamp circuit
The end c ground connection；The end i of series connection bleeder circuit and the end j of driving circuit connect, the end e for bleeder circuit of connecting and the end f of switching circuit
Connection, the end g for bleeder circuit of connecting and the end h of switching circuit connect；The end k of driving circuit and the end l of switching circuit connect；String
The end m of connection bleeder circuit is connect with the end GD of external solar battery.
Wherein, driving circuit includes voltage VB, capacitor C1, field-effect tube Q1 and resistance R5；Wherein, resistance R5, field-effect
Pipe Q1 and capacitor C1 first parallel circuit of composition parallel with one another；One end of first parallel circuit is connect with voltage VB, and voltage VB is
Voltage of the solar energy after solar panel converts, VB 4.7-5.3V；The other end and driving electricity of first parallel circuit
The k point on road connects.
Switching circuit includes field-effect tube Q2, resistance R4 and resistance R6；Wherein, field-effect tube Q1 and resistance R4 composition second
The end l of parallel circuit, the second parallel circuit and switching circuit connects；One end of resistance R4 and the end h of switching circuit connect；Field effect
Should pipe Q2 one end connect with resistance R6 after connect with the end f of switching circuit.
Bleeder circuit of connecting includes resistance R1, resistance R2 and resistance R3；Wherein, resistance R1, resistance R2 and resistance R3 be successively
Series connection；One end of resistance R1 is connect with the end i of series connection bleeder circuit；Resistance R1 and the junction of resistance R2 and bleeder circuit of connecting
The end d connection；Resistance R2 is connect with the end g, the end m of series connection bleeder circuit respectively with the junction of resistance R3；One end of resistance R3
It is connect with the end e of series connection bleeder circuit.
Clamp circuit includes diode D1 and diode D2；Wherein, the end c of the input terminal of diode D2 and clamp circuit connects
It connects；The output end of diode D2 is connect with the input terminal of diode D1；The output end of diode D1 and the external 3.3V electricity provided
Source connection；Diode D2 output end is connect with the end a of clamp circuit, the end b respectively with diode D1 input terminal junction.
It is illustrated in figure 2 the series connection of n block solar panel and expands circuit diagram, as seen from the figure, when n block solar battery
When plate is connected, the e point of every piece of solar battery circuit is connect with the p of adjacent solar battery circuit point；And n block solar-electricity
The end GD of pond plate is connected in series；N is positive integer and n≤5.
It is illustrated in figure 3 switching circuit schematic equivalent circuit, as seen from the figure, when the series connection of n block solar panel, the
N block solar battery circuit, i.e., the field-effect tube Q2 in series circuit in last block solar battery circuit are in an open state；
1st piece, the 2nd piece ..., the solar battery circuit of n-1 block is in off state.
When the series connection of n block solar panel, by detecting VAC11、VAC12、VAC1nThe voltage of point can determine whether the solar energy
Solar panel expands location in circuit in series connection, and then judges the solar battery electricity of last block solar panel
Road.
When the series connection of n block solar panel, the 1st piece, the 2nd piece ..., switching circuit in n-1 block solar battery circuit
Equivalent circuit include diode D3, diode D4, resistance R4 and resistance R6；The input terminal of diode D3 respectively with diode D4
Input terminal, the end l of switching circuit, diode D3 output end connection；The output end of diode D3 connect with resistance R4 after with
The end l of switching circuit connects；The output end of diode D3 and the end h of switching circuit connect；The output end and resistance of diode D4
It is connect after R6 connection with the end f of switching circuit.
Fig. 4 show the structural schematic diagram of two pieces of solar panels of solar energy movable power supply, as seen from the figure, square S
The distributing position of magnetic contact is represented with S1, wherein the magnetic contact above and below solar panel is used to carry out solar energy shifting
Connection is expanded in the series connection of dynamic power supply, and the magnetic contact of left and right side is used to carry out being connected in parallel for solar energy movable power supply, S1
Shown in magnetic contact be used to carry out the connection between two pieces of solar panels of solar energy movable power supply.When three blocks of solar energy
When mobile power source is used in series, electrical connection and GD point due to magnetic contact are communicated, then, first piece of solar panel
The point position M the output voltage after series connection is expanded is provided, N point position provides reference after series connection extension.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (5)
1. circuit is expanded in a kind of solar energy movable power supply series connection, it is characterised in that: monolithic solar battery circuit includes driving electricity
Road, switching circuit, series connection bleeder circuit and clamp circuit；Wherein, the driving circuit includes voltage VB, capacitor C1, field-effect
Pipe Q1 and resistance R5；Switching circuit includes field-effect tube Q2, resistance R4 and resistance R6；Clamp circuit includes diode D1 and two poles
Pipe D2；Bleeder circuit of connecting includes resistance R1, resistance R2 and resistance R3；
Wherein, resistance R5, field-effect tube Q1 and capacitor C1 first parallel circuit of composition parallel with one another；First parallel circuit respectively with
Voltage VB, driving circuit the second parallel circuit with series connection bleeder circuit resistance R1 connect；
Wherein, one end of field-effect tube Q2 and resistance R4 form the second parallel circuit, the second parallel circuit respectively with driving circuit
The first parallel circuit, connect bleeder circuit resistance R2 connected with the junction of resistance R3；The other end of field-effect tube Q2 with
One end of resistance R6 connects；The other end of resistance R6 is connect with the resistance R3 of series connection bleeder circuit；
Wherein, resistance R1, resistance R2 and resistance R3 are sequentially connected in series；One end of resistance R1 and the first parallel circuit of driving circuit connect
It connects；The junction of resistance R1 and resistance R2 respectively with the input terminal of DC restorer diode D1, the output end of diode D2 and outer
The AC1 connection of portion monitoring point；The junction of resistance R2 and resistance R3 respectively with the second parallel circuit of switching circuit and n block solar energy
The end GD of solar panel connects；The other end of the resistance R3 diode with the resistance R6 of switching circuit, ground wire and clamp circuit respectively
The connection of D2 input terminal；
Wherein, the input terminal of diode D2 connects with the resistance R6 of ground wire, the resistance R3 for bleeder circuit of connecting and switching circuit respectively
It connects；The output end of diode D2 respectively with external monitoring point AC1, the input terminal of diode D1, bleeder circuit of connecting resistance R1 and
Resistance R2 connection；The output end of diode D1 is connect with the 3.3V power supply that outside provides.
2. circuit is expanded in a kind of solar energy movable power supply series connection according to claim 1, it is characterised in that: the voltage VB
For voltage of the solar energy after solar panel converts, VB 4.7-5.3V.
3. circuit is expanded in a kind of solar energy movable power supply series connection according to claim 2, it is characterised in that: when the n block sun
When energy solar panel series connection, the end resistance R3 of every piece of solar battery circuit connects with the resistance R1 in adjacent solar battery circuit
It connects；And the end GD of n block solar panel is connected in series；N is positive integer and n≤5.
4. circuit is expanded in a kind of solar energy movable power supply series connection according to claim 3, it is characterised in that: when the n block sun
When energy solar panel series connection, n-th piece of solar battery circuit, i.e., the field effect in series circuit in last block solar battery circuit
Should pipe Q2 be in an open state；1st piece, the 2nd piece ..., the solar battery circuit of n-1 block is in off state.
5. circuit is expanded in a kind of solar energy movable power supply series connection according to claim 4, it is characterised in that: when the n block sun
Can solar panel series connection when, the 1st piece, the 2nd piece ..., the equivalent circuit of switching circuit includes two poles in n-1 block solar battery circuit
Pipe D3, diode D4, resistance R4 and resistance R6；The input terminal of diode D3 respectively with the input terminal of diode D4, driving circuit
The first parallel circuit, diode D3 output end connection；The output end of diode D3 connect with resistance R4 after with switching circuit
The second parallel circuit connection；The output end of diode D3 is connect with the junction of series connection voltage divider circuit Resistance R2 and resistance R3；
The output end of diode D4 connect with resistance R6 after respectively with two poles in resistance R3, ground wire and clamp circuit in bleeder circuit of connecting
The input terminal of pipe D2 connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637399.8A CN107658957B (en) | 2017-07-31 | 2017-07-31 | A kind of solar energy movable power supply series connection expansion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637399.8A CN107658957B (en) | 2017-07-31 | 2017-07-31 | A kind of solar energy movable power supply series connection expansion circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107658957A CN107658957A (en) | 2018-02-02 |
| CN107658957B true CN107658957B (en) | 2019-07-23 |
Family
ID=61128277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710637399.8A Active CN107658957B (en) | 2017-07-31 | 2017-07-31 | A kind of solar energy movable power supply series connection expansion circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107658957B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201226448Y (en) * | 2008-01-29 | 2009-04-22 | 西藏东阳科技发展有限公司 | Solar weak light charger |
| CN102740595A (en) * | 2012-06-15 | 2012-10-17 | 杨东 | Solar cell panel having serial connection or parallel connection structure and manufacturing method for solar cell panel |
| CN203774844U (en) * | 2014-04-08 | 2014-08-13 | 宋慧 | Solar mobile power supply |
| CN203894574U (en) * | 2014-06-20 | 2014-10-22 | 衢州迪升工业设计有限公司 | Control circuit for water-saving device of solar water heater |
| CN204089677U (en) * | 2014-07-31 | 2015-01-07 | 苏州强明光电有限公司 | A kind of portable power source based on high-efficiency soft solar cell |
| CN205846834U (en) * | 2016-07-20 | 2016-12-28 | 深圳市金光能太阳能有限公司 | A kind of overcharge detection control circuit of controller for solar |
-
2017
- 2017-07-31 CN CN201710637399.8A patent/CN107658957B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201226448Y (en) * | 2008-01-29 | 2009-04-22 | 西藏东阳科技发展有限公司 | Solar weak light charger |
| CN102740595A (en) * | 2012-06-15 | 2012-10-17 | 杨东 | Solar cell panel having serial connection or parallel connection structure and manufacturing method for solar cell panel |
| CN203774844U (en) * | 2014-04-08 | 2014-08-13 | 宋慧 | Solar mobile power supply |
| CN203894574U (en) * | 2014-06-20 | 2014-10-22 | 衢州迪升工业设计有限公司 | Control circuit for water-saving device of solar water heater |
| CN204089677U (en) * | 2014-07-31 | 2015-01-07 | 苏州强明光电有限公司 | A kind of portable power source based on high-efficiency soft solar cell |
| CN205846834U (en) * | 2016-07-20 | 2016-12-28 | 深圳市金光能太阳能有限公司 | A kind of overcharge detection control circuit of controller for solar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107658957A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101572485B (en) | Intelligent driving control method and device for secondary synchronous rectifier | |
| CN105471049B (en) | A kind of charging circuit | |
| CN107959417B (en) | A kind of control method of DCDC reversible transducer | |
| CN104242349A (en) | Photovoltaic system with potential induced degradation prevention function and photovoltaic inverter | |
| EP2403121A3 (en) | Solar power generation system and method | |
| CN102255487B (en) | Inverting circuit | |
| CN103825457A (en) | Quasi-Z-source DC-DC boost converter circuit | |
| CN105356564B (en) | Wireless energy receives system | |
| CN104269898B (en) | Charging unit of super capacitor | |
| CN203445831U (en) | Independent photovoltaic power generation device based on four-switch five-level inverter | |
| CN107024615A (en) | A kind of direct access three-dimentional measurement electric energy meter | |
| CN104638746A (en) | Two-way alternative charge-discharge solar photovoltaic controller | |
| CN204131401U (en) | A kind of photovoltaic DC-to-AC converter DC/DC booster circuit | |
| CN107658957B (en) | A kind of solar energy movable power supply series connection expansion circuit | |
| CN102005801A (en) | Charging circuit of solar charging controller in common-ground structure | |
| CN202550916U (en) | Self-driven power frequency synchronization phase-changing full bridge circuit | |
| CN201918757U (en) | Charging circuit of solar charging controller with common ground structure | |
| CN106183856B (en) | A kind of auxiliary power supply and its control method of electric vehicle | |
| CN202818094U (en) | DC voltage converting circuit | |
| CN201629683U (en) | Heavy-current rectifier circuit and device thereof | |
| CN205864383U (en) | A kind of high-speed power high-frequency ac solid-state relay | |
| CN203967974U (en) | A kind of electric power system of control circuit of power cell of mesohigh level rectifier | |
| CN102664551A (en) | Self-driven power frequency synchronous phase conversion full-bridge circuit | |
| CN202651807U (en) | Power station combining photovoltaic power generation, DC power transmission, and lithium iron phosphate cell energy storage | |
| CN208797659U (en) | A kind of power supply unit that can extend sun-generated electric power online |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |