CN110011401A - A kind of city's electric solar energy automatic mutual benefit charging circuit - Google Patents
A kind of city's electric solar energy automatic mutual benefit charging circuit Download PDFInfo
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- CN110011401A CN110011401A CN201910308691.4A CN201910308691A CN110011401A CN 110011401 A CN110011401 A CN 110011401A CN 201910308691 A CN201910308691 A CN 201910308691A CN 110011401 A CN110011401 A CN 110011401A
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- 238000007600 charging Methods 0.000 title claims abstract description 88
- 230000008901 benefit Effects 0.000 title claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 31
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 29
- 230000005611 electricity Effects 0.000 claims description 14
- 230000005669 field effect Effects 0.000 claims description 9
- 101001074602 Homo sapiens Protein PIMREG Proteins 0.000 claims description 5
- 102100036258 Protein PIMREG Human genes 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims 3
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000005955 Ferric phosphate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229940032958 ferric phosphate Drugs 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 2
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H02J2007/10—
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of city's electric solar energy automatic mutuals to mend charging circuit, including solar energy module, civil power module and automatic switchover output module；Solar energy module includes for exporting the solar panel of 12V DC power supply, control circuit and solar charging circuit with lithium battery temperature detection defencive function；Civil power module includes the power-switching circuit and DC charging module that alternating current is switched to 12V/2A DC power supply；The output end of solar panel and the input terminal of solar charging circuit connect；The output end of power-switching circuit is connect with the input terminal of DC charging module；The working condition of the DC voltage trigger control circuit control solar charging circuit of DC charging module；The anode of lithium battery to be charged is connect with the input terminal of solar charging circuit, the output end of DC charging module, automatic switchover output module respectively；The output end for automatically switching output module can be used in DC load power supply.
Description
Technical field
The present invention relates to solar charging electro-technical field more particularly to a kind of city's electric solar energy automatic mutual supplement electricity electricity
Road.
Background technique
Solar energy will become one of global main energy sources in 21 century, be the energy of most original, on the earth it is nearly all its
His energy is all directly or indirectly from solar energy.Solar energy is that continuously nuclear fusion is anti-for the black mole on solar interior or surface
The energy for answering process to generate.Solar energy solar energy has resource abundance, long-lived, widely distributed, safe and clean, technically reliable etc.
Advantage.Since solar energy can be converted the energy of various other forms, application range is very extensive.
But almost blank, 7.4V are nominal voltage for its application in terms of 7.4V lithium battery charging, minimum voltage is 7V,
Ceiling voltage is 8.4V；Meanwhile the work primary and secondary area in existing alternating current solar charging circuit about both power supply sources
Divide and indefinite, so that substantially effectively charging can not be can be carried out using the sun during the work time, to save the effect of alternating current
Fruit, therefore, the prior art is defective, needs to improve.Using solar recharging as groundwork mode, alternating current fills the present invention
Electricity mends working method after being used as one kind,
Summary of the invention
The present invention provides a kind of city's electric solar energy automatic mutual benefit charging circuit, and solution uses solar energy to 7.4V lithium battery
Charging is carried out and based on charging with solar energy, thus the problem of saving alternating current.
To solve the above problems, technical solution provided by the invention is as follows:
A kind of city's electric solar energy automatic mutual mends charging circuit, including solar energy module, civil power module and fills in civil power module
In the case where electricity, solar recharging can be automatically closed, and the automatic switchover by civil power module directly to external power supply exports mould
Block；Solar energy module includes for exporting the solar panel of 12V DC power supply, control circuit and having the inspection of lithium battery temperature
Survey the solar charging circuit of defencive function；Civil power module includes the power-switching circuit that alternating current is switched to 12V/2A DC power supply
With DC charging module；The output end of solar panel and the input terminal of solar charging circuit connect；Power-switching circuit
Output end connect with the input terminal of DC charging module；The DC voltage trigger control circuit of DC charging module controls the sun
The working condition of energy charging circuit；Lithium battery to be charged anode respectively with solar charging circuit, DC charging module it is defeated
Outlet, the input terminal connection for automatically switching output module；The output end for automatically switching output module can be used in DC load confession
Electricity.
Preferably, control circuit includes resistance R1-R3, R9-R10, triode D4 and transistor Q1；Triode D4 is
S8550 type PNP transistor；Transistor Q1 is SI2318CDS type N-channel field-effect tube.
Preferably, solar charging circuit includes resistance R3-R8, R13, RCS1, capacitor C1-C7, inductance L1, diode
D1-D3, D7, Light-emitting diode LED 1-LED2, transistor Q2-Q3, connector J2-J3 and integrated circuit U 1.
Preferably, transistor Q2-Q3 is P-channel field-effect transistor (PEFT) pipe；Connector J3 is for connecting thermo-sensitive resistor；Integrated circuit
U1 is that CN3722 type solar recharging manages integrated circuit.
Preferably, DC charging module include resistance R12, RSW, RS1, capacitor C8, C10-C12, C14-C16, inductance L2,
Diode D6, D8, Light-emitting diode LED 3-LED4, connector J4 and integrated circuit U 2.
Preferably, the output end of power-switching circuit is connect with connector J4；The first end and diode D8 of connector J4
Anode connection；The cathode of diode D8 respectively with the first end of resistance R9, R12, the first end of capacitor C8, C10, integrated circuit
U2 the 1st, 4,5,16 pins connection；The second end of resistance R12 is connect with the anode of Light-emitting diode LED 3-LED4 respectively；Hair
The cathode of optical diode LED3-LED4 is successively connect with the 14-15 pin of integrated circuit U2 respectively；The 13rd of integrated circuit U2
Pin is connect with the second end of resistance RSW；The first end of resistance RSW respectively with the first end of capacitor C16, integrated circuit U2
The connection of 10 pins；The cathode of diode D6 is connect with the 2-3 pin of the first end of inductance L2, integrated circuit U2 respectively；It is integrated
8th pin of circuit U 2 is connect with the second end of the first end of resistance RS1, the first end of capacitor C11-C12, inductance L2 respectively；
Anode of the 9th pin of integrated circuit U2 respectively with the second end of resistance RS1, the first end of capacitor C14-C15, lithium battery connects
It connects；The second end of connector J4, the second end of capacitor C8, C10-C12, C14-C16, the anode of diode D6, lithium battery it is negative
Pole, the 7th of integrated circuit U2 the, 11,12,17 pins are grounded.
It preferably, is 8.4V charge mode when resistance RSW is shorted；Integrated circuit U2 is the integrated electricity of TP5100 type Charge Management
Road.
Preferably, automatically switching output module includes resistance R17, transistor Q4-Q5 and connector J1.
Preferably, the first end of resistance R12 respectively with the source electrode of transistor Q4, the grid of transistor Q5, resistance R17
One end connection；The 6th pin of integrated circuit U2 is connect with the grid of transistor Q4；The source electrode of the anode and transistor Q5 of lithium battery
Connection；The 1st stitch of connector J1 is connect with the drain electrode of transistor Q4-Q5 respectively；The second end of resistance R17, connector J1
2nd stitch is grounded.
Preferably, connector J1 is for connecting DC load；Transistor Q4-Q5 is SI2319CDS type field-effect tube.
Beneficial effect compared with the existing technology is, using the above scheme, solar energy module that the present invention uses, alternating current mould
Block can be realized the charging to 7.4V lithium battery, and in civil power module work, can by automatically switching output module
Forbid battery supplying power for outside, changes by civil power module to external directly power supply, reduce the usage amount of lithium battery, improve service life；
Control circuit controls whether solar energy module works by detecting the DC voltage of civil power module, to realize in alternating current
Module not when artificially devoting oneself to work, guarantee to charge with solar energy based on, achieve the effect that save alternating current.
Detailed description of the invention
Illustrate embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment or the prior art
The required attached drawing used is briefly described in description, it is clear that, the accompanying drawings in the following description is only some realities invented
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the functional block diagram that a kind of city's electric solar energy automatic mutual of the invention mends charging circuit；
Fig. 2 is the circuit diagram for the solar energy module that a kind of city's electric solar energy automatic mutual of the invention mends charging circuit；
Fig. 3 is the circuit theory for the DC charging module that a kind of city's electric solar energy automatic mutual of the invention mends charging circuit
Figure；
Fig. 4 is that the circuit for the automatic switchover output module that a kind of city's electric solar energy automatic mutual of the invention mends charging circuit is former
Reason figure.
Specific embodiment
To facilitate the understanding of the present invention, in the following with reference to the drawings and specific embodiments, the present invention will be described in more detail.
A better embodiment of the invention is given in the attached drawing.But the invention can be realized in many different forms, and unlimited
In this specification described embodiment.On the contrary, purpose of providing these embodiments is makes to the disclosure
Understand more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term used in this specification " fixation ", " integrated molding ",
For illustrative purposes only, the similar unit of structure is to identical label in the figure for "left", "right" and similar statement
Mark.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.
As shown in Figure 1, one embodiment of the present of invention is:
A kind of city's electric solar energy automatic mutual mends charging circuit, including solar energy module, civil power module and fills in civil power module
In the case where electricity, solar recharging can be automatically closed, and the automatic switchover by civil power module directly to external power supply exports mould
Block；Solar energy module includes for exporting the solar panel of 12V DC power supply, control circuit and having the inspection of lithium battery temperature
Survey the solar charging circuit of defencive function；Civil power module includes the power-switching circuit that alternating current is switched to 12V/2A DC power supply
With DC charging module；The output end of solar panel and the input terminal of solar charging circuit connect；Power-switching circuit
Output end connect with the input terminal of DC charging module；The DC voltage trigger control circuit of DC charging module controls the sun
The working condition of energy charging circuit；Lithium battery to be charged anode respectively with solar charging circuit, DC charging module it is defeated
Outlet, the input terminal connection for automatically switching output module；The output end for automatically switching output module can be used in DC load confession
Electricity.
As shown in Fig. 2, one embodiment of the present of invention is, solar charging circuit include resistance R3-R8, R13, RCS1,
Capacitor C1-C7, inductance L1, diode D1-D3, D7, Light-emitting diode LED 1-LED2, transistor Q2-Q3, connector J2-J3 and
Integrated circuit U1；
The output end of solar panel is connect with connector J2；The first end of connector J2 respectively with diode D1 just
The cathode connection of pole, diode D7；The cathode of diode D1 is connect with the source electrode of transistor Q3；The drain electrode of transistor Q3 respectively with
The first end of capacitor C1-C2, the first end of resistance R4, R5, R8, the source electrode of transistor Q2, integrated circuit U1 the 15th pin connect
It connects；The second end of resistance R8 is connect with the 7th pin of the first end of first resistor R3, integrated circuit U1 respectively；First resistor R3
Second end connect with the first end of second resistance R3；The second end of resistance R4-R5 successively respectively with Light-emitting diode LED 1-
The anode connection of LED2；The cathode of Light-emitting diode LED 1-LED2 is successively connect with the 5-4 pin of integrated circuit U1 respectively；
The 6th pin of integrated circuit U1 is connect with the 2nd stitch of the second end of resistance R13, connector J3 respectively；The second end of capacitor C1
It is connect with the 1st pin of integrated circuit U1；The grid of transistor Q2 is connect with the 16th pin of integrated circuit U1；Transistor Q2's
It drains and is connect with the anode of diode D2；The cathode of diode D2 connects with the first end of the cathode of diode D3, inductance L1 respectively
It connects；The second end of inductance L1 is connect with the 13rd pin of the first end of resistance RCS1, integrated circuit U1 respectively；The of resistance RCS1
Two ends respectively with the first end of resistance R7, the first end of capacitor C3, C7, the 14th pin of integrated circuit U1, lithium battery anode
Connection；The 10th pin of integrated circuit U1 connects with the second end of the second end of resistance R7, the first end of resistance R6, capacitor C7 respectively
It connects；Integrated circuit U1 the 8th, 9,11 pins successively respectively with the first end of capacitor C5, the first end of resistance R11, capacitor C4
First end connection；The second end of resistance R11 is connect with the first end of capacitor C6；The second of the second end of connector J2, resistance R6
End, the first end of resistance R13, the second end of second resistance R3, the second end of capacitor C2-C6, the anode of diode D7, connector
The 1st stitch of J3, the 2-3 pin of integrated circuit U1 are grounded；
Transistor Q2-Q3 is P-channel field-effect transistor (PEFT) pipe；Connector J3 is for connecting thermo-sensitive resistor；Integrated circuit U1 is
CN3722 type solar recharging manages integrated circuit.
CN3722 is the PWM decompression mode Charge Management integrated circuit of a usable solar cell for supplying power, is had too
Positive energy battery MPPT maximum power point tracking function.CN3722 is very suitable to fill single-unit or multisection lithium battery or ferric phosphate lithium cell
Fulgurite reason, has many advantages, such as that packaging appearance is small, and peripheral component is few and using simple.
CN3722 has constant current and constant-voltage charge mode, is very suitable to the charging of lithium battery or ferric phosphate lithium cell.In perseverance
Charge mode is pressed, constant-voltage charge voltage is arranged by non-essential resistance potential-divider network；In constant current charging mode, charging current passes through one
Non-essential resistance setting.
For the battery of deep discharge, when cell voltage is lower than the 66.7% of set constant-voltage charge voltage,
15% pair of battery of the set constant-current charge electric current of CN3722 carries out trickle charge.In constant voltage charging phase, charging current
It being gradually reduced, charging process continues until that charging current is reduced to zero, accordingly even when the power of solar battery output very little,
It can charge to battery；It, will not be to battery overcharge because battery terminal connections BAT pin voltage remains unchanged at this time.When defeated
When entering power supply power-fail or input voltage lower than cell voltage, sleep pattern of the CN3722 automatically into low-power consumption.
Other functions include that input low-voltage latches, battery temperature monitoring, battery-end overvoltage protection and charged state instruction
Deng.
Control circuit includes resistance R1-R3, R9-R10, triode D4 and transistor Q1；
The cathode of diode D1 is connect with the emitter of the first end of resistance R1, triode D4 respectively；The second of resistance R9
End is connect with the grid of the first end of resistance R10, transistor Q1 respectively；The drain electrode of transistor Q1 and the second end of resistance R2 connect
It connects；The first end of resistance R2 is connect with the base stage of triode D4；The second end of resistance R1 respectively with the collector of triode D4, crystalline substance
The grid of body pipe Q3 connects；The source grounding of the second end of resistance R3, R10, transistor Q1；
Triode D4 is S8550 type PNP transistor；Transistor Q1 is SI2318CDS type N-channel field-effect tube.
As shown in figure 3, one embodiment of the present of invention is, DC charging module includes resistance R12, RSW, RS1, capacitor
C8, C10-C12, C14-C16, inductance L2, diode D6, D8, Light-emitting diode LED 3-LED4, connector J4 and integrated circuit
U2；
The output end of power-switching circuit is connect with connector J4；The first end of connector J4 and the anode of diode D8 connect
It connects；The cathode of diode D8 respectively with the first end of resistance R9, R12, the first end of capacitor C8, C10, integrated circuit U2 the 1st,
4,5,16 pins connect；The second end of resistance R12 is connect with the anode of Light-emitting diode LED 3-LED4 respectively；Light emitting diode
The cathode of LED3-LED4 is successively connect with the 14-15 pin of integrated circuit U2 respectively；The 13rd pin and electricity of integrated circuit U2
Hinder the second end connection of RSW；The first end of resistance RSW connects with the 10th pin of the first end of capacitor C16, integrated circuit U2 respectively
It connects；The cathode of diode D6 is connect with the 2-3 pin of the first end of inductance L2, integrated circuit U2 respectively；Integrated circuit U2's
8th pin is connect with the second end of the first end of resistance RS1, the first end of capacitor C11-C12, inductance L2 respectively；Integrated circuit
The 9th pin of U2 is connect with the anode of the second end of resistance RS1, the first end of capacitor C14-C15, lithium battery respectively；Connector
The second end of J4, the second end of capacitor C8, C10-C12, C14-C16, the anode of diode D6, the cathode of lithium battery, integrated electricity
Road U2 the 7th, 11,12,17 pins are grounded；
It is 8.4V charge mode when resistance RSW is shorted, is otherwise 4.2V charge mode；Integrated circuit U2 is that TP5100 type fills
Fulgurite manages integrated circuit.
TP5100 is a switching buck binodal 8.4v/ single-unit 4.2V lithium battery charging management chip.Its QFN16 is extra small
Type encapsulation and simple peripheral circuit, so that TP5100 is highly suitable for the large current charge management application of portable device.Together
When, the built-in input overcurrent of TP5100, under-voltage protection, chip over-temperature protection, short-circuit protection, cell-temperature monitoring, battery reversal connection are protected
Shield.
TP5100 has 5V-18V wide input voltage, is divided into trickle preliminary filling, constant current, constant pressure three phases to battery charging,
Trickle precharge electric current, constant-current charge electric current are all adjusted by non-essential resistance, and maximum charging current reaches 2A.TP5100 uses frequency
The switch operating mode of 400kHz makes it that lesser peripheral components can be used, and lesser hair is still kept in large current charge
Heat.
TP5100 built-in power PMOSFET, anti-back flow circuit, so being protected without the periphery such as reverse-filling Schottky diode
Shield.
As shown in figure 4, one embodiment of the present of invention is, automatically switching output module includes resistance R17, transistor Q4-
Q5 and connector J1；
The first end of resistance R12 connects with the first end of the source electrode of transistor Q4, the grid of transistor Q5, resistance R17 respectively
It connects；The 6th pin of integrated circuit U2 is connect with the grid of transistor Q4；The anode of lithium battery is connect with the source electrode of transistor Q5；
The 1st stitch of connector J1 is connect with the drain electrode of transistor Q4-Q5 respectively；2nd needle of the second end of resistance R17, connector J1
Foot is grounded；
Connector J1 is for connecting DC load；Transistor Q4-Q5 is SI2319CDS type field-effect tube.
CN3722 constitutes solar charging electric unit, supports MPPT maximum power tracing.Charging current is set as 600mA, branch
Hold battery temperature detection.
TP5100 constitutes DC charhing unit, and charging current is set as 1000mA, does not support battery temperature to detect.It is required that external
DC inputs 12V voltage, the electric current more than or equal to 1A, preferably 2A.
In the case where external DC access charging: solar recharging is automatically closed in system, is charged using external DC power supply, and prohibit
Only battery is powered, and external DC power supply is output to external sys-tems automatically.
In the case that external DC is not inputted: system is charged the battery by solar panel, and supplying power for outside simultaneously.
After solar cell panel voltages are lower than 6.2V, charging is automatically closed.
The anti-reverse protection of on-board battery plate, cell anti-reverse connect protection.
Onboard system work light, can indicate charged state.
This system is designed according to 7.4V lithium battery system
Battery request: 7.4V lithium battery (full voltage 8.4V).
Solar panel requirement: 12V (5--20W) recommends 12V/10W.
Rechargeable battery positive and negative anodes must be first connected before charging, reconnect photovoltaic solar panel.If necessary to adjust system
Operating voltage.It can be according to following parameter
Calculating remodifies parameter.It can be compatible with 3.7V, arrive 12V system.
Interface uses DC005-2.1mm.
The circuit module can be used cooperatively with voltage transformation module V1.0.
Parameter calculates:
Solar charging electric unit:
V solar panels maximum power point voltage=1.04 × (1+R8/R3) selects 12V10W solar panel here,
So R8=180K, R3=(R3_1+R3_2)=100R+11K
J3 is battery temperature protective resistance (NTC10K/1%MF52), if R13 (10K) resistance please be welded by not connecing.
Charging voltage Vbat=2.416 × (1+R7/R6)+50nA × R7 selects 7.4V lithium battery, so R7=here
180K, R6=68K.
Charging current ICH=0.2V/RCS, it is 600ma that charging current is arranged here, so RCS=0.33R.
DC DC charging unit:
Charger suggestion: using 9-12VDC/2A, and 1A can also be with, it is contemplated that DC charging while supplying power for outside is needed,
It is recommended that selection > 1A.
Charge mode selection: RSW resistance is shorted, 8.4V charge mode, otherwise 4.2V mode.Here lithium battery is 7.4V,
So needing to be shorted RSW resistance.
Charging current selection: ICH=0.1V/RS is set as 1A here, so RS1=0.1R.
Charge preliminary filling electric current: RTRICK pin dead earth is 10%Ibat.
It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed,
It is accordingly to be regarded as the range of description of the invention record；Also, for those of ordinary skills, it can add according to the above description
To improve or convert, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of city's electric solar energy automatic mutual mends charging circuit, which is characterized in that including solar energy module, civil power module and in city
In the case where electric module charging, solar recharging, and the cutting automatically directly to external power supply by civil power module can be automatically closed
Change output module；Solar energy module includes for exporting the solar panel of 12V DC power supply, control circuit and having lithium electricity
The solar charging circuit of pond temperature detection defencive function；Civil power module includes the power supply that alternating current is switched to 12V/2A DC power supply
Conversion circuit and DC charging module；The output end of solar panel and the input terminal of solar charging circuit connect；Power supply
The output end of conversion circuit is connect with the input terminal of DC charging module；The DC voltage trigger control circuit of DC charging module
Control the working condition of solar charging circuit；Lithium battery to be charged anode respectively with solar charging circuit, DC charging
The output end of module, the input terminal connection for automatically switching output module；The output end for automatically switching output module can be used in directly
Current load power supply.
2. a kind of city's electric solar energy automatic mutual according to claim 1 mends charging circuit, which is characterized in that control circuit packet
Include resistance R1-R3, R9-R10, triode D4 and transistor Q1；Triode D4 is S8550 type PNP transistor；Transistor Q1 is
SI2318CDS type N-channel field-effect tube.
3. a kind of city's electric solar energy automatic mutual according to claim 1 mends charging circuit, which is characterized in that solar recharging
Circuit includes resistance R3-R8, R13, RCS1, capacitor C1-C7, inductance L1, diode D1-D3, D7, Light-emitting diode LED 1-
LED2, transistor Q2-Q3, connector J2-J3 and integrated circuit U 1.
4. a kind of city's electric solar energy automatic mutual according to claim 3 mends charging circuit, which is characterized in that transistor Q2-
Q3 is P-channel field-effect transistor (PEFT) pipe；Connector J3 is for connecting thermo-sensitive resistor；Integrated circuit U1 is CN3722 type solar charging fulgurite
Manage integrated circuit.
5. a kind of city's electric solar energy automatic mutual according to claim 1 mends charging circuit, which is characterized in that DC charging mould
Block includes resistance R12, RSW, RS1, capacitor C8, C10-C12, C14-C16, inductance L2, diode D6, D8, light emitting diode
LED3-LED4, connector J4 and integrated circuit U 2.
6. a kind of city's electric solar energy automatic mutual according to claim 5 mends charging circuit, which is characterized in that power supply conversion electricity
The output end on road is connect with connector J4；The first end of connector J4 is connect with the anode of diode D8；The cathode of diode D8
It is connect respectively with the first end of resistance R9, R12, the first end of capacitor C8, C10, the 1st of integrated circuit U2 the, 4,5,16 pins；Electricity
The second end for hindering R12 is connect with the anode of Light-emitting diode LED 3-LED4 respectively；The cathode of Light-emitting diode LED 3-LED4 according to
It is secondary to be connect respectively with the 14-15 pin of integrated circuit U2；The 13rd pin of integrated circuit U2 and the second end of resistance RSW connect
It connects；The first end of resistance RSW is connect with the 10th pin of the first end of capacitor C16, integrated circuit U2 respectively；Diode D6's is negative
Pole is connect with the 2-3 pin of the first end of inductance L2, integrated circuit U2 respectively；The 8th pin of integrated circuit U2 respectively with electricity
Hinder the first end of RS1, the first end of capacitor C11-C12, the connection of the second end of inductance L2；The 9th pin of integrated circuit U2 is distinguished
It is connect with the anode of the second end of resistance RS1, the first end of capacitor C14-C15, lithium battery；The second end of connector J4, capacitor
The second end of C8, C10-C12, C14-C16, the anode of diode D6, the cathode of lithium battery, the 7th of integrated circuit U2 the, 11,12,
17 pins are grounded.
7. a kind of city's electric solar energy automatic mutual benefit charging circuit according to claim 5 or 6, which is characterized in that resistance
It is 8.4V charge mode when RSW is shorted；Integrated circuit U2 is TP5100 type Charge Management integrated circuit.
8. a kind of city's electric solar energy automatic mutual according to claim 1 mends charging circuit, which is characterized in that automatically switch defeated
Module includes resistance R17, transistor Q4-Q5 and connector J1 out.
9. a kind of city's electric solar energy automatic mutual according to claim 8 mends charging circuit, which is characterized in that resistance R12's
First end is connect with the first end of the source electrode of transistor Q4, the grid of transistor Q5, resistance R17 respectively；The 6th of integrated circuit U2
Pin is connect with the grid of transistor Q4；The anode of lithium battery is connect with the source electrode of transistor Q5；The 1st stitch of connector J1 point
It is not connect with the drain electrode of transistor Q4-Q5；The second end of resistance R17, the 2nd stitch of connector J1 are grounded.
10. a kind of city's electric solar energy automatic mutual benefit charging circuit according to claim 8 or 9, which is characterized in that patch
Part J1 is for connecting DC load；Transistor Q4-Q5 is SI2319CDS type field-effect tube.
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| CN201910308691.4A CN110011401A (en) | 2019-04-17 | 2019-04-17 | A kind of city's electric solar energy automatic mutual benefit charging circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910308691.4A CN110011401A (en) | 2019-04-17 | 2019-04-17 | A kind of city's electric solar energy automatic mutual benefit charging circuit |
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| CN110011401A true CN110011401A (en) | 2019-07-12 |
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| CN201910308691.4A Pending CN110011401A (en) | 2019-04-17 | 2019-04-17 | A kind of city's electric solar energy automatic mutual benefit charging circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114172248A (en) * | 2021-11-09 | 2022-03-11 | 南京高晶光电科技有限公司 | Mains supply complementary solar lawn lamp control circuit |
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Application publication date: 20190712 |