CN107733066A - A kind of solar charging electric control circuit - Google Patents
A kind of solar charging electric control circuit Download PDFInfo
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- CN107733066A CN107733066A CN201711164609.2A CN201711164609A CN107733066A CN 107733066 A CN107733066 A CN 107733066A CN 201711164609 A CN201711164609 A CN 201711164609A CN 107733066 A CN107733066 A CN 107733066A
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- 238000001914 filtration Methods 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 7
- 230000007958 sleep Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005923 long-lasting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003079 width control Methods 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
- H02J7/34—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
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of solar charging electric control circuit, it includes anti-reverse lightning protection circuit, prime filter circuit, control module, voltage detecting circuit, charging circuit, prevents sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit；The input and output end of anti-reverse lightning protection circuit are connected with the output end of solar panel and the input of prime filter circuit respectively, the output end of prime filter circuit and the input of charging circuit are connected, and the output end of charging circuit is connected after preventing sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit with battery successively；The control output end of control module and the control terminal of charging circuit connect；The signal input part of the input of voltage detecting circuit and the output end of prime filter circuit, output end and control module connects.The present invention makes controller add auto sleep function, reduces the excess loss of storage battery energy, preferably protects the life-span of battery.
Description
Technical field
The present invention relates to a kind of solar charging electric control circuit, belong to technical field of photovoltaic power generation.
Background technology
In recent years, China increased the input in regenerative resource, and photovoltaic generation industry increases rapidly, with solar energy
Plate manufacturing technology steps up, and photovoltaic efficiency substantially rises, and battery technology is also improving in addition, and volume is smaller, holds
Amount is bigger.
All kinds of photovoltaic power generation control systems are numerous in the market, but can really improve the control of solar energy utilization ratio
Device is seldom, mostly ignores the energy loss of controller in itself, so that the endurance of battery reduces, increases electric power storage
The input in pond.
Therefore, a solar charging electric control circuit for reducing controller internal energy loss of necessary design, comes more
Good monitoring battery condition.
The content of the invention
In view of the shortcomings of the prior art, the present invention proposes a kind of solar charging electric control circuit, and it particularly contemplates control
The consumption of the internal energy of device processed, and it is low to build cost, it is easy to install the features such as, have preferably monitoring work(to the life-span of battery
Energy.
The present invention solves its technical problem and adopted the technical scheme that：
A kind of solar charging electric control circuit provided in an embodiment of the present invention, it includes anti-reverse lightning protection circuit, prime is filtered
Wave circuit, control module, voltage detecting circuit, charging circuit, prevent sink current circuit, rear class filtering circuit and battery counnter attack
Connect circuit；The input of the anti-reverse lightning protection circuit and the output end of solar panel connect, and output end filters with prime
The input connection of circuit, the output end of the prime filter circuit and the input of charging circuit connect, the charging circuit
Output end be connected successively after preventing sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit with battery；
The control output end of the control module and the control terminal of charging circuit connect；The input and prime of the voltage detecting circuit
The signal input part connection of the output end of filter circuit, output end and control module.
As a kind of possible implementation of the present embodiment, in anti-reverse lightning protection circuit and prime filter circuit, solar energy
The positive pole of plate is connected with self- recoverage insurance F1 one end, the self- recoverage insurance F1 other end and one end and the chokes of TVS diode
Inductance L2 one end connection, the other end ground connection of TVS diode are enclosed, resistance R14 one end connects with inductance L2 one end, N-MOS
Pipe Q3 grid is connected with the resistance R14 other end, and N-MOS pipes Q3 grid is connected with pull down resistor R11 one end, N-MOS pipes
Q3 drain electrode is grounded after being connected with the pull down resistor R11 other end, and N-MOS pipes Q3 source electrode and the negative pole of solar panels connect,
The inductance L2 other end one end with electric capacity C6, electric capacity C5 one end, electric capacity C3 one end, resistance R5 one end, resistance respectively
R2 one end, electric capacity C2 one end connect with P-MOS pipes Q1 source electrode, and electric capacity C6, electric capacity C5 are connected with the electric capacity C3 other end
Earth terminal afterwards.
As a kind of possible implementation of the present embodiment, in the control module, resistance the R5 other end and emitting red light
Diode D3 positive pole connection, the resistance R2 other end are connected with color green LED D4 positive pole, the pole of emitting red light two
Pipe D3 negative pole is connected with Charge Management integrated chip CN3767 the 3rd pin, D4 negative pole and Charge Management integrated chip
CN3767 the 4th pin connection, the electric capacity C2 other end are connected with Charge Management integrated chip CN3767 the 1st pin, charged
Manage integrated chip CN3767 the 2nd pin ground connection, Charge Management integrated chip CN3767 the 5th pin and resistance R3 one end phase
Connection, the resistance R3 other end are connected with electric capacity C4 one end, electric capacity C4 other end ground connection.
As a kind of possible implementation of the present embodiment, in voltage detecting circuit, charging circuit, prevent that sink current is electric
In road, rear class filtering circuit and battery reverse-connection preventing circuit, Charge Management integrated chip CN3767 the 10th pin and P-MOS are managed
Q1 grid connection, Charge Management integrated chip CN3767 the 9th pin are connected with resistance R1 one end and electric capacity C3 one end,
Charge Management integrated chip CN3767 the 6th pin is connected with the resistance R1 other end and resistance R4 one end, and resistance R4's is another
One end is grounded, and the drain electrode of P-MOS pipes is connected with diode D1 positive pole, diode D1 negative pole and inductance L1 one end and two poles
Pipe D2 negative pole connection, diode D2 plus earth, the inductance L1 other end are connected with resistance Rcs one end, resistance Rcs's
Both ends are connected with Charge Management integrated chip CN3767 the 8th pin and the 7th pin respectively, the resistance Rcs other end and electrolysis
Electric capacity C7 positive pole, electric capacity C1 one end connect with inductance L3 one end, and electric capacity C1 other end ground connection, electrochemical capacitor C7's is negative
Pole is grounded, and the inductance L3 other end is connected with one end of battery BT1 positive terminal and resistance R12, the resistance R12 other end and
N-MOS pipes Q4 grid connects with resistance R13 one end, the resistance R13 other end and N-MOS pipes Q4 source electrode common ground,
N-MOS pipes Q4 drain electrode is connected with battery BT1 negative pole end.
As a kind of possible implementation of the present embodiment, a kind of solar charging electric control circuit of the present embodiment also includes
Battery overshoots over-discharge protection circuit, and the input of the battery overshoot over-discharge protection circuit passes through battery reverse-connection preventing circuit
It is connected afterwards with battery, output end is connected with the incoming end loaded.
As a kind of possible implementation of the present embodiment, in battery overshoots over-discharge protection circuit, electrochemical capacitor C7
Positive pole be connected with one end of output loading end P2 positive pole, resistance R9 one end and resistance R6, the resistance R9 other end and electricity
Hinder R10 one end, battery detecting integrated circuit CN302 the 4th pin connects with electric capacity C11 one end, the resistance R10 other end
Ground terminal, the resistance R6 other end and battery detecting integrated circuit CN302 the 1st pin and electricity are accessed with the electric capacity C11 other end
Hinder R7 one end connection, electric capacity C9 one end and electric capacity C10 one end and battery detecting integrated circuit CN302 the 1st pin connects
Connect, the 2nd pin common ground of the electric capacity C9 other end, the electric capacity C10 other end and battery detecting integrated circuit CN302, electricity
Pond detection integrated circuit CN302 the 3rd pin is connected with red light emitting diodes D5 positive pole, and red light emitting diodes D5's is negative
Pole is grounded, and the resistance R7 other end is connected with the 6th pin of resistance R8 one end and battery detecting integrated circuit CN302, resistance
R8 other end ground connection, battery detecting integrated circuit CN302 the 5th pin are connected with N-MOS pipes Q2 grid, N-MOS pipes Q2
Drain electrode be connected with output loading end P2 negative pole, N-MOS pipes Q2 source ground.
The technical scheme of the embodiment of the present invention can have the advantage that as follows：
Technical scheme of the embodiment of the present invention includes anti-reverse lightning protection circuit, prime filter circuit, control module, voltage detecting
Circuit, charging circuit, prevent sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit；The reverse connection preventing thunder and lightning
The input on road and the output end of solar panel are connected, and output end is connected with the input of prime filter circuit, before described
The output end of level filter circuit and the input of charging circuit connect, and the output end of the charging circuit is successively by preventing from filling electricity
It is connected after current circuit, rear class filtering circuit and battery reverse-connection preventing circuit with battery；The control output end of the control module
It is connected with the control terminal of charging circuit；The input of the voltage detecting circuit and the output end of prime filter circuit, output end
It is connected with the signal input part of control module.The present invention can not only realize that is, solar panels are without defeated in the case of no light
When going out, controller automatically into resting state, to reduce the excess loss of storage battery energy, and can also preferably protect storage
In the life-span of battery, make the continuation of the journey that battery is more permanent.
Technical scheme of the embodiment of the present invention commercially adds automatic stop in the function of existing solar charging controller
The function of dormancy, the ability of the interim charging of battery is improved, reduces the cost of solar charging controller and shared sky
Between, and the charging ability of controller is optimized, by the optimization to solar charging controller internal circuit, reduce solar energy
The additional energy loss of charge controller, enhances the endurance of battery, therefore can give the charging of load safety and reliability,
Ensure that the continuation of the journey of battery is more longlasting.
Integrated chip CN3767 used in technical scheme of the embodiment of the present invention is the control chip of a battery charging,
The IC chip acting as in the present system in specific implementation process：Detection potential-divider network resistance R1 and resistance R4 is adopted
The voltage signal of the solar panel collected, and judge whether the voltage signal is in the maximum power point of solar panel
Voltage, if reaching the maximum power point voltage of solar panel, constant-current charge will be used, charging current is by resistance Rcs this moment
Resistance determine, when the voltage for detecting solar panel Non voltage output or solar panel is less than battery tension
When, IC chip CN3767 turns off the 10th pin and the output of the 3rd pin of the chip, into resting state, two poles
The pipe D1 electric current for acting as preventing battery pours into integrated circuit CN3767, avoids the extra output of battery.
Brief description of the drawings
Fig. 1 is a kind of original figure of solar charging electric control circuit according to an exemplary embodiment；
Fig. 2 is the circuit of a kind of anti-reverse lightning protection circuit and prime filter circuit according to an exemplary embodiment
Figure；
Fig. 3 is a kind of circuit diagram of control module according to an exemplary embodiment；
Fig. 4 is a kind of voltage detecting circuit according to an exemplary embodiment, charging circuit, prevents that sink current is electric
The circuit diagram on road, rear class filtering circuit and battery reverse-connection preventing circuit；
Fig. 5 is that a kind of solar charging electric control circuit according to an exemplary embodiment (is crossed without battery and broken through
Discharge protection circuit) physical circuit figure；
Fig. 6 is a kind of circuit diagram of battery overshoot over-discharge protection circuit according to an exemplary embodiment.
Embodiment
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this hair
It is bright to be described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relation between various embodiments are discussed and/or set.It should be noted that part illustrated in the accompanying drawings is not necessarily to scale
Draw.Present invention omits the description to known assemblies and treatment technology and process to avoid being unnecessarily limiting the present invention.
As shown in figure 1, a kind of solar charging electric control circuit described in the present embodiment, it include anti-reverse lightning protection circuit,
Prime filter circuit, control module, voltage detecting circuit, charging circuit, prevent sink current circuit, rear class filtering circuit and electric power storage
Pond reverse-connection preventing circuit；The input of the anti-reverse lightning protection circuit and the output end of solar panel connect, and output end is with before
The input connection of level filter circuit, the output end of the prime filter circuit and the input of charging circuit connect, described to fill
The output end of circuit successively after preventing sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit with battery
Connection；The control output end of the control module and the control terminal of charging circuit connect；The input of the voltage detecting circuit
With the output end of prime filter circuit, the signal input part connection of output end and control module.The present embodiment can not only be realized
In the case of no light, i.e., solar panels without output when, controller automatically into resting state, to reduce storage battery energy
Excess loss, and can also preferably protect the life-span of battery, make the continuation of the journey that battery is more permanent.
As shown in Figure 2 and Figure 5, as a kind of possible implementation of the present embodiment, in anti-reverse lightning protection circuit and prime
Filter circuit, P1 are the incoming end of solar panels, and the positive pole of solar panels is connected with self- recoverage insurance F1 one end, and self- recoverage is protected
The dangerous F1 other end and one end of TVS diode and choke inductance L2 one end connect, the other end ground connection of TVS diode,
Resistance R14 one end is connected with inductance L2 one end, and N-MOS pipes Q3 grid is connected with the resistance R14 other end, N-MOS pipes Q3
Grid be connected with pull down resistor R11 one end, N-MOS pipes Q3 drain electrode is grounded after being connected with the pull down resistor R11 other end, N-
The negative pole of metal-oxide-semiconductor Q3 source electrode and solar panels connects, the inductance L2 other end one end with electric capacity C6, the one of electric capacity C5 respectively
End, electric capacity C3 one end, resistance R5 one end, resistance R2 one end, electric capacity C2 one end connect with P-MOS pipe Q1 source electrodes, electricity
Earth terminal after appearance C6, electric capacity C5 are connected with the electric capacity C3 other end.By self- recoverage insurance F1, TVS diode, pull down resistor R11,
Resistance R14, N-MOS pipe Q3 and choke inductance L2 form anti-reverse lightning protection circuit reverse-connection preventing circuit, to prevent artificial connect
Circuit breaking-up is instead resulted in because electric wire connects when entering solar panel power line, and prevents equipment from being smashed by thunder and lightning.By
Electric capacity C6, electric capacity C5, electric capacity C3 and electric capacity C2 form prime filter circuit.
As shown in Figure 3 and Figure 5, as a kind of possible implementation of the present embodiment, in the control module, using such as rhythm factory
The CN3767 chips of business, the resistance R5 other end are connected with red light emitting diodes D3 positive pole, resistance the R2 other end and color
Green LED D4 positive pole connection, the of red light emitting diodes D3 negative pole and Charge Management integrated chip CN3767
3 pins are connected, and D4 negative pole is connected with Charge Management integrated chip CN3767 the 4th pin, the electric capacity C2 other end and charging
Manage integrated chip CN3767 the 1st pin connection, Charge Management integrated chip CN3767 the 2nd pin ground connection, Charge Management
Integrated chip CN3767 the 5th pin is connected with resistance R3 one end, and the resistance R3 other end is connected with electric capacity C4 one end, electricity
Hold C4 other end ground connection.Charging is formed by resistance R2, resistance R5, red light emitting diodes D3 and color green LED D4
Status display circuit, when red light emitting diodes D3 is lighted in Fig. 3, represent that system carries out trickle charge shape for battery
State, constant-current charge state and overshoot electricity condition, when green LED D4 is lighted, expression system is floated for battery
Fill charged state.
As shown in Figure 4 and Figure 5, as a kind of possible implementation of the present embodiment, in voltage detecting circuit, charging electricity
Road, prevent in sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit, the of Charge Management integrated chip CN3767
10 pins are connected with P-MOS pipes Q1 grid, Charge Management integrated chip CN3767 the 9th pin and resistance R1 one end and electricity
Hold C3 one end connection, Charge Management integrated chip CN3767 the 6th pin and the resistance R1 other end and resistance R4 one end
Connection, resistance R4 other end ground connection, P-MOS pipes Q1 drain electrode is connected with diode D1 positive pole, diode D1 negative pole and
Inductance L1 one end connects with diode D2 negative pole, diode D2 plus earth, and the inductance L1 other end is with resistance Rcs's
One end is connected, and resistance Rcs both ends are connected with Charge Management integrated chip CN3767 the 8th pin and the 7th pin respectively, resistance
The Rcs other end is connected with one end of electrochemical capacitor C7 positive pole, electric capacity C1 one end and inductance L3, electric capacity C1 another termination
Ground, electrochemical capacitor C7 negative pole ground connection, the inductance L3 other end are connected with one end of battery BT1 positive terminal and resistance R12,
The resistance R12 other end is connected with N-MOS pipes Q4 grid and resistance R13 one end, the resistance R13 other end and N-MOS pipe
Q4 source electrode common ground, N-MOS pipes Q4 drain electrode are connected with battery BT1 negative pole end.Voltage detecting circuit by R1, R4 and
Charge Management integrated chip CN3767 is formed, for detecting that solar panel is defeated by control chip CN3767 MPPT pins
The magnitude of voltage gone out, and then change charge mode.Current detecting is formed by resistance and chip CN3767 CSP pins and BAT pins
Circuit, for detecting the charging current of battery, the current value detected is back to CN3767 chip internals, filled so as to adjust
Electric current.It is defeated for conveying electric current to battery by P-MOS pipes Q1 and chip CN3767 DRV pin set success rate on-off circuits
The Pulse Width Control that the size of power transmission stream is sent by the DRV pins of CN3767 chips.Diode D1, which is formed, prevents sink current circuit, uses
In preventing battery current by AO3407 chips, and then reduce power consumption.By P-MOS pipes Q1, diode D1, diode D2 and electricity
Feel L1 and form Buck power circuits, for providing reliable and stable voltage for battery.
The present embodiment commercially adds the function of auto sleep in the function of existing solar charging controller, improves
The ability of the interim charging of battery, reduces the cost of solar charging controller and shared space, and optimize control
The charging ability of device processed, by the optimization to solar charging controller internal circuit, reduce solar charging controller
Additional energy is lost, and enhances the endurance of battery, therefore can give the charging of load safety and reliability, ensures battery
Continue a journey more longlasting.
As shown in figure 1, in a kind of possible implementation, a kind of solar charging electric control circuit in above-described embodiment
Also include battery overshoot over-discharge protection circuit, the input of the battery overshoot over-discharge protection circuit passes through battery counnter attack
It is connected after connecing circuit with battery, output end be connected with the incoming end loaded, for preventing the excessive electric discharge of battery and excessive
Charging cause battery to damage, in order to avoid influence battery life-span.
As shown in fig. 6, in a kind of possible implementation, in battery overshoots over-discharge protection circuit, electrochemical capacitor
C7 positive pole is connected with one end of output loading end P2 positive pole, resistance R9 one end and resistance R6, the resistance R9 other end with
Resistance R10 one end, battery detecting integrated circuit CN302 the 4th pin connect with electric capacity C11 one end, and resistance R10's is another
End and electric capacity the C11 other end access ground terminal, the resistance R6 other end and battery detecting integrated circuit CN302 the 1st pin and
Resistance R7 one end connection, electric capacity C9 one end and electric capacity C10 one end and battery detecting integrated circuit CN302 the 1st pin
Connection, the 2nd pin common ground of the electric capacity C9 other end, the electric capacity C10 other end and battery detecting integrated circuit CN302,
Battery detecting integrated circuit CN302 the 3rd pin is connected with red light emitting diodes D5 positive pole, red light emitting diodes D5's
Negative pole is grounded, and the resistance R7 other end is connected with the 6th pin of resistance R8 one end and battery detecting integrated circuit CN302, electricity
R8 other end ground connection is hindered, battery detecting integrated circuit CN302 the 5th pin is connected with N-MOS pipes Q2 grid, N-MOS pipes
Q2 drain electrode is connected with output loading end P2 negative pole, N-MOS pipes Q2 source ground.Light emitting diode D5 in Fig. 6 is lighted
Illustrate that the battery BT1 in Fig. 5 has been filled with.
Integrated chip CN3767 used in the present embodiment is the control chip of a battery charging, is implemented specifically
The IC chip acting as in the present system in journey：The solar energy that detection potential-divider network resistance R1 and resistance R4 is collected
The voltage signal of cell panel, and judge whether the voltage signal is in the maximum power point voltage of solar panel, if reaching
The maximum power point voltage of solar panel, constant-current charge will be used, charging current is determined by resistance Rcs resistance this moment,
When the voltage for detecting solar panel Non voltage output or solar panel is less than battery tension, the integrated circuit
Chip CN3767 turns off the 10th pin and the output of the 3rd pin of the chip, and into resting state, diode D1's act as preventing
Only the electric current of battery pours into integrated circuit CN3767, avoids the extra output of battery.
The present embodiment passes through the functionally increase sleep mode automatically work(of the solar charging controller generally used in the market
Can, solve the problems, such as that battery continuation of the journey in the market can be insufficient, electric power storage is enhanced by the solar charging electric control circuit
The endurance in pond, reduce the excess loss of solar energy, adds somewhat to the conversion effect of solar charging controller
The utilization rate of rate and solar energy.
Simply the preferred embodiment of the present invention described above, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also regarded as this hair
Bright protection domain.
Claims (6)
1. a kind of solar charging electric control circuit, it is characterized in that, including anti-reverse lightning protection circuit, prime filter circuit, control mould
Block, voltage detecting circuit, charging circuit, prevent sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit；It is described anti-
The input of reversal connection lightning protection circuit and the output end of solar panel connect, and output end and the input of prime filter circuit connect
Connect, the output end of the prime filter circuit and the input of charging circuit connect, and the output end of the charging circuit passes through successively
Cross after preventing sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit and be connected with battery；The control module
The control terminal of control output end and charging circuit connects；The input of the voltage detecting circuit and the output of prime filter circuit
The signal input part of end, output end and control module connects.
2. a kind of solar charging electric control circuit as claimed in claim 1, it is characterized in that, in anti-reverse lightning protection circuit and prime
Filter circuit, the positive pole of solar panels are connected with self- recoverage insurance F1 one end, the self- recoverage insurance F1 other end and the poles of TVS bis-
One end of pipe connects with choke inductance L2 one end, the other end of TVS diode ground connection, resistance R14 one end and inductance L2's
One end is connected, and N-MOS pipes Q3 grid is connected with the resistance R14 other end, N-MOS pipes Q3 grid and pull down resistor R11 mono-
End connection, N-MOS pipes Q3 drain electrode are grounded after being connected with the pull down resistor R11 other end, N-MOS pipes Q3 source electrode and solar energy
The negative pole connection of plate, the inductance L2 other end one end with electric capacity C6, electric capacity C5 one end, electric capacity C3 one end, resistance respectively
R5 one end, resistance R2 one end, electric capacity C2 one end connect with P-MOS pipe Q1 source electrodes, electric capacity C6, electric capacity C5 and electric capacity C3's
Earth terminal after the other end is connected.
3. a kind of solar charging electric control circuit as claimed in claim 2, it is characterized in that, in the control module, resistance R5's
The other end is connected with red light emitting diodes D3 positive pole, and the resistance R2 other end connects with color green LED D4 positive pole
Connect, red light emitting diodes D3 negative pole is connected with Charge Management integrated chip CN3767 the 3rd pin, D4 negative pole and charging
Integrated chip CN3767 the 4th pin connection is managed, the electric capacity C2 other end draws with the 1st of Charge Management integrated chip CN3767
Pin connects, Charge Management integrated chip CN3767 the 2nd pin ground connection, Charge Management integrated chip CN3767 the 5th pin with
Resistance R3 one end is connected, and the resistance R3 other end is connected with electric capacity C4 one end, electric capacity C4 other end ground connection.
4. a kind of solar charging electric control circuit as claimed in claim 3, it is characterized in that, in voltage detecting circuit, charging electricity
Road, prevent in sink current circuit, rear class filtering circuit and battery reverse-connection preventing circuit, the of Charge Management integrated chip CN3767
10 pins are connected with P-MOS pipes Q1 grid, Charge Management integrated chip CN3767 the 9th pin and resistance R1 one end and electricity
Hold C3 one end connection, Charge Management integrated chip CN3767 the 6th pin and the resistance R1 other end and resistance R4 one end
Connection, resistance R4 other end ground connection, P-MOS pipes Q1 drain electrode is connected with diode D1 positive pole, diode D1 negative pole and
Inductance L1 one end connects with diode D2 negative pole, diode D2 plus earth, and the inductance L1 other end is with resistance Rcs's
One end is connected, and resistance Rcs both ends are connected with Charge Management integrated chip CN3767 the 8th pin and the 7th pin respectively, resistance
The Rcs other end is connected with one end of electrochemical capacitor C7 positive pole, electric capacity C1 one end and inductance L3, electric capacity C1 another termination
Ground, electrochemical capacitor C7 negative pole ground connection, the inductance L3 other end are connected with one end of battery BT1 positive terminal and resistance R12,
The resistance R12 other end is connected with N-MOS pipes Q4 grid and resistance R13 one end, the resistance R13 other end and N-MOS pipe
Q4 source electrode common ground, N-MOS pipes Q4 drain electrode are connected with battery BT1 negative pole end.
5. a kind of solar charging electric control circuit as claimed in claim 4, it is characterized in that, in addition to battery crosses to break through and puts guarantor
Protection circuit, the battery overshoot the input of over-discharge protection circuit by being connected after battery reverse-connection preventing circuit with battery,
Output end is connected with the incoming end loaded.
6. a kind of solar charging electric control circuit as claimed in claim 5, it is characterized in that, in battery overshoot Cross prevention electricity
Lu Zhong, electrochemical capacitor C7 positive pole are connected with one end of output loading end P2 positive pole, resistance R9 one end and resistance R6, resistance
The R9 other end is connected with resistance R10 one end, battery detecting integrated circuit CN302 the 4th pin and electric capacity C11 one end,
The resistance R10 other end and electric capacity C11 other end access ground terminal, resistance the R6 other end and battery detecting integrated circuit
CN302 the 1st pin connects with resistance R7 one end, electric capacity C9 one end and electric capacity C10 one end and the integrated electricity of battery detecting
Road CN302 the 1st pin connection, the electric capacity C9 other end, the electric capacity C10 other end and battery detecting integrated circuit CN302
2nd pin common ground, battery detecting integrated circuit CN302 the 3rd pin is connected with red light emitting diodes D5 positive pole, red
Color light emitting diode D5 negative pole ground connection, the resistance R7 other end and resistance R8 one end and battery detecting integrated circuit CN302
The connection of the 6th pin, resistance R8 other end ground connection, battery detecting integrated circuit CN302 the 5th pin is with N-MOS pipes Q2's
Grid is connected, and N-MOS pipes Q2 drain electrode is connected with output loading end P2 negative pole, N-MOS pipes Q2 source ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711164609.2A CN107733066A (en) | 2017-11-21 | 2017-11-21 | A kind of solar charging electric control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711164609.2A CN107733066A (en) | 2017-11-21 | 2017-11-21 | A kind of solar charging electric control circuit |
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| CN107733066A true CN107733066A (en) | 2018-02-23 |
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| CN201711164609.2A Pending CN107733066A (en) | 2017-11-21 | 2017-11-21 | A kind of solar charging electric control circuit |
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