CN207835142U - A kind of solar charging circuit - Google Patents
A kind of solar charging circuit Download PDFInfo
- Publication number
- CN207835142U CN207835142U CN201820234850.1U CN201820234850U CN207835142U CN 207835142 U CN207835142 U CN 207835142U CN 201820234850 U CN201820234850 U CN 201820234850U CN 207835142 U CN207835142 U CN 207835142U
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- CN
- China
- Prior art keywords
- feet
- diode
- charging circuit
- xl6009e1
- chips
- 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.)
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model is related to a kind of solar charging circuits, including XL6009E1 chips, the Gnd feet of the XL6009E1 chips are grounded, Vin feet connect solar panel, SW feet connect energy-storage units, and are connect with rechargeable battery by diode, and FB feet are electrically connected to the cathode of the diode by sampling unit, to be sampled to the discharge voltage of the SW feet and energy-storage units, EN feet are then grounded.Solar charging circuit provided by the utility model prevents solar illuminating is too low from causing not filling electricity, and prevents solar irradiation too strong so that battery is not supported, has damaged battery pack, accomplishes protection and charging effect, improves the physical life of battery pack.
Description
Technical field
The utility model is related to a kind of solar charging circuits.
Background technology
Solar energy is a kind of inexhaustible green energy resource, during solar energy acquisition, with weather etc.
Factor, solar panel acquisition luminous energy carries out transformed voltage and is not sufficiently stable, thus is unfavorable for charging to rechargeable battery.
Utility model content
The primary and foremost purpose of the utility model is to provide a kind of solar charging circuit, and solar panel is acquired luminous energy
It carries out transformed voltage and maintains a stable section, it is convenient to charge to rechargeable battery.
To achieve the goals above, the technical solution adopted in the utility model is as follows：
A kind of solar charging circuit, including：
XL6009E1 chips, the Gnd feet ground connection of the XL6009E1 chips, Vin feet connect solar panel, and SW feet connect storage
Energy unit, and connect with rechargeable battery by diode, FB feet are electrically connected to the cathode of the diode by sampling unit, with
Discharge voltage sampling to the SW feet and energy-storage units, EN feet are then grounded.
Preferably, the energy-storage units include the first inductance, the 8th capacitance, the 7th capacitance and the second inductance, described
The SW feet of XL6009E1 chips are grounded by the first inductance, the 8th capacity earth, and by the 7th capacitance, the second inductance.
Preferably, the sampling unit includes the 8th resistance, the 7th resistance, and the FB feet of the XL6009E1 chips pass through the
Eight resistance are electrically connected with the cathode of the diode, and pass through the 7th resistance eutral grounding.
Preferably, the cathode of the diode is also grounded by the 6th resistance and light emitting diode.
Preferably, the cathode of the diode is also grounded by the 9th capacitance and/or the 6th electrolytic capacitor.
Solar charging circuit provided by the utility model prevents solar illuminating is too low from causing not filling electricity, and prevents
Solar irradiation is too strong so that battery is not supported, has damaged battery pack, accomplishes protection and charging effect, improves the practicality of battery pack
Service life.
Description of the drawings
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.In attached drawing
In：
Fig. 1 is the circuit diagram of the utility model embodiment.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment
As shown in Figure 1, a kind of solar charging circuit, including：
XL6009E1 chips, the Gnd feet ground connection of the XL6009E1 chips, Vin feet connect solar panel, and SW feet connect storage
Energy unit, and connect with rechargeable battery by diode D6, FB feet are electrically connected to the negative of the diode D6 by sampling unit
Pole, to be sampled to the discharge voltage of the SW feet and energy-storage units, EN feet are then grounded.
In the present embodiment, the energy-storage units include the first inductance L1, the 8th capacitance C8, the 7th capacitance C7 and the second inductance
L2, the SW feet of the XL6009E1 chips pass through the 7th capacitance C7, second by the first inductance L1, the 8th capacitance C8 ground connection
Inductance L2 ground connection, thermal energy storage process are：SW feet export square-wave signal, are capacitance and induction charging when exporting high level as switch
Energy storage；Capacitance and inductive discharge when exporting low level.
In the present embodiment, the sampling unit includes the 8th resistance R8, the 7th resistance R7, the FB of the XL6009E1 chips
Foot is electrically connected by the 8th resistance R8 with the cathode of the diode D6, and passes through the 7th resistance R7 ground connection, wherein FB feet export
1.25V voltages, therefore voltage comparator has been given in the 8th resistance R8 and the 7th resistance R7 formation, is exported, output formula is
Vout=1.25V* (1+R8/R7).
As the improvement of above-described embodiment scheme, the cathode of the diode D6 also passes through the 6th resistance R6 and light-emitting diodes
Pipe D7 ground connection.
As the improvement of above-described embodiment scheme, the cathode of the diode D6 also passes through the 9th capacitance C9 and/or the 6th
Electrolytic capacitor C6 ground connection.
By above-described embodiment scheme, when solar panel acquisition luminous energy carry out transformed voltage higher than 8.4V or
When less than 8.4V, the solar charging circuit of the utility model is can be transferred through output voltage stabilization in 8.4V, is 18650 batteries
Group charging.
When concrete application, the module that this solar charging circuit is constituted is placed in outside equipment, passes through the heat conduction of metal box
Performance and heat dissipation performance radiate to the module, reduce influence of the high temperature to equipment.By the size matching to box, again
The arrangement for designing the size and element of module increases whole heat dissipation performance by increasing with the contact surface of metal box.
As described above, being explained in detail to the embodiments of the present invention, as long as but essence is no to be detached from this
The utility model point and effect of utility model can have many deformations, this is apparent to one skilled in the art
's.Therefore, such variation is also integrally incorporated within the scope of protection of the utility model.
Claims (5)
1. a kind of solar charging circuit, it is characterised in that including：
XL6009E1 chips, the Gnd feet ground connection of the XL6009E1 chips, Vin feet connect solar panel, and SW feet connect energy storage list
Member, and connect with rechargeable battery by diode, FB feet are electrically connected to the cathode of the diode by sampling unit, with to institute
The discharge voltage sampling of SW feet and energy-storage units is stated, EN feet are then grounded.
2. a kind of solar charging circuit according to claim 1, it is characterised in that：
The energy-storage units include the first inductance, the 8th capacitance, the 7th capacitance and the second inductance, the SW of the XL6009E1 chips
Foot is grounded by the first inductance, the 8th capacity earth, and by the 7th capacitance, the second inductance.
3. a kind of solar charging circuit according to claim 1, it is characterised in that：
The sampling unit includes the 8th resistance, the 7th resistance, and the FB feet of the XL6009E1 chips pass through the 8th resistance and institute
The cathode electrical connection of diode is stated, and passes through the 7th resistance eutral grounding.
4. a kind of solar charging circuit according to claim 1, it is characterised in that：
The cathode of the diode is also grounded by the 6th resistance and light emitting diode.
5. a kind of solar charging circuit according to claim 1, it is characterised in that：
The cathode of the diode is also grounded by the 9th capacitance and/or the 6th electrolytic capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820234850.1U CN207835142U (en) | 2018-02-09 | 2018-02-09 | A kind of solar charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820234850.1U CN207835142U (en) | 2018-02-09 | 2018-02-09 | A kind of solar charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207835142U true CN207835142U (en) | 2018-09-07 |
Family
ID=63397919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820234850.1U Active CN207835142U (en) | 2018-02-09 | 2018-02-09 | A kind of solar charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207835142U (en) |
-
2018
- 2018-02-09 CN CN201820234850.1U patent/CN207835142U/en active Active
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