CN207612112U - A kind of solar charging controller of high magnification sampling - Google Patents
A kind of solar charging controller of high magnification sampling Download PDFInfo
- Publication number
- CN207612112U CN207612112U CN201721672322.6U CN201721672322U CN207612112U CN 207612112 U CN207612112 U CN 207612112U CN 201721672322 U CN201721672322 U CN 201721672322U CN 207612112 U CN207612112 U CN 207612112U
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- China
- Prior art keywords
- circuit
- acquisition circuit
- charge management
- voltage acquisition
- mcu control
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is related to Charge Management technical fields, and in particular to a kind of solar charging controller of high magnification sampling, including：Input voltage Acquisition Circuit, output voltage Acquisition Circuit, the corresponding information of the multiple circle collection of output current Acquisition Circuit, and it is sent to MCU control circuit analyzing processing, MCU control circuit transmits signal to PWM drive circuit, to control the opening and closing of power switch tube, and then charging current voltage is adjusted.The utility model is by constantly recycling to charging current voltage sample, and control solar panels and charged to battery in a manner of constant pressure and flow, keep solar panels utilization more abundant, substantially increases charge efficiency, the information analysis of acquisition is handled simultaneously, adaptive boosting or decompression charging.
Description
Technical field
The utility model is related to Charge Management technical fields, and in particular to a kind of solar charging electric control of high magnification sampling
Device.
Background technology
With the development of science and technology, electronic product is more at an indispensable part in for people's lives, and electronics
The operation of product be unable to do without battery with work, in addition with the increase of people's environmental consciousness, gradually develops to clean energy resource for example
The technology of the charging of solar energy.For the technology of solar panel charging, existing conventional scheme only detects solar cell panel voltages,
It can not really realize constant voltage constant current charging of the solar energy to lithium battery；And it is filled come current limliting by controlling metal-oxide-semiconductor constant power device
Electricity, when input and output pressure difference is big, fever is serious, and loss is big, and efficiency is low.Meanwhile existing conventional scheme also can not be adaptively real
High efficiency charging is now boosted or be depressured, charging monitoring and protection are not carried out to lithium battery in real time.With solar recharging skill
The development of art, the above problem increasingly obtain people's attention.Therefore, there is an urgent need for a kind of solar charging that can be solved the above problems is automatically controlled
Device processed.
Invention content
In order to overcome shortcoming and defect existing in the prior art, the purpose of this utility model is to provide a kind of high magnifications
The solar charging controller of sampling.
To achieve the above object, the utility model uses following scheme.
A kind of solar charging controller of high magnification sampling, including MCU control circuit, PWM drive circuit, input voltage
Acquisition Circuit, output voltage Acquisition Circuit, output current Acquisition Circuit, charge management circuit；The PWM drive circuit, input
Voltage collection circuit, output voltage Acquisition Circuit, output current Acquisition Circuit are electrically connected with MCU control circuit；It is described to fill
Fulgurite is managed circuit and is electrically connected with PWM drive circuit；The input voltage Acquisition Circuit is also electric with charge management circuit input terminal
Property connection, the output voltage Acquisition Circuit, output current Acquisition Circuit also with charge management circuit output end be electrically connected；Institute
It includes multiple power switch tubes, inductance and current-limiting resistance to state charge management circuit；Input voltage Acquisition Circuit, output voltage acquisition
Circuit, the corresponding information of the multiple circle collection of output current Acquisition Circuit, and it is sent to MCU control circuit analyzing processing, MCU controls
Signal transmission circuit processed is to PWM drive circuit, to control the opening and closing of power switch tube, and then is adjusted to charging current voltage
Section.
Further, further include charge protector, the charge protector is electrically connected with MCU control circuit.
Further, further include charging display circuit, the charging display circuit is electrically connected with MCU control circuit.
Further, charge management circuit includes rectifier circuit, and the rectifier circuit is electrically connected with solar panels.
The beneficial effects of the utility model：A kind of solar charging controller of high magnification sampling is provided, by constantly following
Ring is controlled solar panels and is charged to battery in a manner of constant pressure and flow to charging current voltage sample, makes solar panels using more
Add fully, is converted using DC-DC and charge efficiency is made to promote 30% or more, while the information analysis of acquisition is handled, it is adaptive to rise
Pressure or decompression charging.
Description of the drawings
Fig. 1 is the circuit architecture schematic diagram of the utility model embodiment controller；
Fig. 2 is the charge management circuit schematic diagram of the utility model embodiment；
Fig. 3 is the charge management circuit figure of this utility model embodiment.
Specific implementation mode
For the ease of the understanding of those skilled in the art, with reference to embodiment and attached drawing 1-3 to the utility model make into
The explanation of one step, the content that embodiment refers to not are the restriction to the utility model.
A kind of solar charging controller of high magnification sampling, as shown in Figure 1, including MCU control circuit 1, PWM driving electricity
Road 5, input voltage Acquisition Circuit 2, output voltage Acquisition Circuit 3, output current Acquisition Circuit 4, charge management circuit；It is described
PWM drive circuit 5, input voltage Acquisition Circuit 2, output voltage Acquisition Circuit 3, output current Acquisition Circuit 4 are controlled with MCU
Circuit 1 is electrically connected；The charge management circuit is electrically connected with PWM drive circuit 5；The input voltage Acquisition Circuit 2 is also
With charge management circuit input terminal be electrically connected, the output voltage Acquisition Circuit 3, output current Acquisition Circuit 4 also with charging
Circuit output end is managed to be electrically connected；The charge management circuit includes multiple power switch tubes, inductance and current-limiting resistance.
Charge management circuit is as shown in Figures 2 and 3, and S1 ~ S4 indicates power switch tube, respectively by PWM drive circuit 5
PWM1 ~ PWM4 is controlled, and Vin indicates that charging input voltage, Vcharger indicate that charging output voltage, Icharger expressions fill
Electricity output electric current.
When charging, input voltage Acquisition Circuit 2 acquires the input voltage vin of charge management circuit in real time, and output voltage is adopted
Collector 3 acquires the output voltage Vcharger of charge management circuit in real time, and output current Acquisition Circuit 4 acquires charging valve in real time
The output current Icharger for managing circuit, and is sent to MCU control circuit 1 by collected information and analyzes, by PWM1 ~
PWM4 controls S1 ~ S4, to determine that charging modes are decompression charging or boost charge：
Work as Vin>When Vcharger, S3 is normally closed, and S4 is normally opened, and alternately the S1 of opening and closing switching, S2 form BUCK circuits with inductance,
Carry out decompression charging；
Work as Vin<When Vcharger, S1 is normally closed, and S2 is normally opened, alternately the S3 of opening and closing switching, S4 and inductance composition BOOST electricity
Road carries out boost charge；
As Vin=Vcharger, S1 and S3 are normally closed, and S2 and S4 are normally opened, directly export；
In the present embodiment, MCU control circuit 1 controls output electricity by controlling the switching rate of alternately opening and closing switching
The size of Vcharger and output current Icharger, each Acquisition Circuit is pressed to carry out multiple repairing weld within the unit interval, work as acquisition
To output voltage Vcharger reach predetermined constant pressure value when, MCU control circuit 1 control charge management circuit with predetermined constant pressure
Current value when being worth, and reaching predetermined constant pressure value carries out constant voltage constant current charging, until sample next time；When collected output electricity
When stream Icharger reaches predetermined constant current value, MCU control circuit 1 controls charge management circuit with predetermined constant current value, and reaches pre-
Voltage value when determining constant current value carries out constant voltage constant current charging, until sample next time；As collected output voltage Vcharger
When being not up to predetermined value with output current Icharger, MCU control circuit 1 according to collected output voltage Vcharger and
Output current Icharger calculates power, and compared with the power sampled before, if less than the power sampled before, with before
Maximum sampled power corresponding output voltage Vcharger and output current Icharger carry out constant voltage constant current charging, until under
Primary sampling；If more than the power sampled before, then carried out with current output voltage Vcharger and output current Icharger
Constant voltage constant current charging, until sample next time.With this circle collection, the crawl of maximum power is realized, make the utilization of solar panels
More fully.
Further include charge protector 6 in the present embodiment, the charge protector 6 electrically connects with MCU control circuit 1
It connects.MCU control circuit 1 transmits collected information to charge protector 6, and charge protector 6 relatively and judges output electricity
Pressure, the parameters such as output current whether within the allowable range, if not within the allowable range if feed back to MCU control circuit 1, with carry out
Further adjust.Charging monitoring and protection are carried out to rechargeable battery in real time with this, extend service life of lithium battery.
Further include charging display circuit 7 in the present embodiment, the charging display circuit 7 electrically connects with MCU control circuit 1
It connects.MCU control circuit 1 is by charging current voltage, battery capacity, the information such as battery temperature pass to charging display circuit 7 with into
Row display, charging person can be visually known charge information.
In the present embodiment, charge management circuit includes rectifier circuit 8, and the rectifier circuit 8 and solar panels are electrical
Connection.Even if solar panels reversal connection, after 8 rectification of rectified bridge circuit, polar Current Voltage is answered to positive and negative terminal the output phase, is realized
Solar panels are blind to be connect.
In the present embodiment, solar controller can reduce power attenuation and can prevent from malfunctioning in installation process again.Conventional
Solar panels input is reversed in order to prevent for solar controller, using powerful two pole mode, but the diode meeting of the method
There are 0.6V or so pressure drops, electric current IFIt is bigger, diode drop VF It is bigger, therefore diode losses power is PF=IF*VF, it is assumed that it is defeated
It is I to enter electric currentF=5A, diode drop VF=0.6V, then diode losses power PF=5*0.6=3W。
Rectifier circuit 8 is used in this solar charging controller, as shown in figure 3, solar panels input voltage is inputted
It is P without the loss power differentiated in positive negative direction and this circuit in rectifier circuit 8F = RD*I2, RDFor the internal resistance of MOS；
IF 2For electric current.Assuming that RD=0.002 Ω, I2=5A, that is, PF=0.002*25=0.05W。
Due to PF=0.05W<3W, this solar charging controller reduce the technical difficulty of actual application, and can be improved
The charge power of solar panels.
This solar charging controller can improve 30% or more charge efficiency using DC-DC conversion methods.Traditional solar energy
Controller is to adjust output current according to input voltage solar panels output voltage is adjusted to crest voltage, to export maximum
Power, it is assumed that battery voltage VBat=10V, solar energy maximum working voltage PVmax=17V, maximum operating currenbt PImax=5A,
Then loss power P=(PVmax-VBat) * I=(17-10) * 5=35W, it is practical to battery charge power be 17*5-35=
50W。
The design charges to battery pack into constant pressure and flow mode using DC-DC modes, and DC-DC circuit passes through inductive energy storage side
Formula avoids linear impairments, but has transfer efficiency loss.DC-DC transfer efficiencies are generally 90 ~ 95%, and the same parameter of root Ju can be counted
It is P=(PV to calculate DC-DC lossesmax* PImax) * (1-0.90)=17*5*0.15=8.5W, it is practical to battery charging work(
Rate is 17*5-8.5=76.5W.Charge power of the charge power of 76.5W with respect to 50W improves 30% or more.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (5)
1. a kind of solar charging controller of high magnification sampling, which is characterized in that including MCU control circuit, PWM driving electricity
Road, input voltage Acquisition Circuit, output voltage Acquisition Circuit, output current Acquisition Circuit, charge management circuit；The PWM drives
Dynamic circuit, input voltage Acquisition Circuit, output voltage Acquisition Circuit, output current Acquisition Circuit are electrical with MCU control circuit
Connection；The charge management circuit is electrically connected with PWM drive circuit；The input voltage Acquisition Circuit is also electric with Charge Management
Road input terminal is electrically connected, the output voltage Acquisition Circuit, output current Acquisition Circuit also with charge management circuit output end
It is electrically connected；The charge management circuit includes multiple power switch tubes, inductance and current-limiting resistance；Input voltage Acquisition Circuit,
Output voltage Acquisition Circuit, the corresponding voltage of output current Acquisition Circuit circle collection, current information, and it is sent to MCU controls
Circuit analysis is handled, and MCU control circuit transmits signal to PWM drive circuit, to control the opening and closing of power switch tube, and then to filling
Electric Current Voltage is adjusted.
2. a kind of solar charging controller of high magnification sampling according to claim 1, which is characterized in that further include filling
Electric protection circuit, the charge protector are electrically connected with MCU control circuit.
3. a kind of solar charging controller of high magnification sampling according to claim 1, which is characterized in that further include filling
Electric display circuit, the charging display circuit are electrically connected with MCU control circuit.
4. a kind of solar charging controller of high magnification sampling according to claim 1, which is characterized in that the charging
It further includes rectifier circuit to manage circuit, and the rectifier circuit is electrically connected with solar panels.
5. a kind of solar charging controller of high magnification sampling according to claim 1, which is characterized in that Charge Management
Circuit includes 4 power switch tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672322.6U CN207612112U (en) | 2017-12-05 | 2017-12-05 | A kind of solar charging controller of high magnification sampling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672322.6U CN207612112U (en) | 2017-12-05 | 2017-12-05 | A kind of solar charging controller of high magnification sampling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207612112U true CN207612112U (en) | 2018-07-13 |
Family
ID=62796339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721672322.6U Expired - Fee Related CN207612112U (en) | 2017-12-05 | 2017-12-05 | A kind of solar charging controller of high magnification sampling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207612112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641252A (en) * | 2020-05-18 | 2020-09-08 | 江苏东洲物联科技有限公司 | Power supply system of high-availability Internet of things gateway and active intelligent charging method |
-
2017
- 2017-12-05 CN CN201721672322.6U patent/CN207612112U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641252A (en) * | 2020-05-18 | 2020-09-08 | 江苏东洲物联科技有限公司 | Power supply system of high-availability Internet of things gateway and active intelligent charging method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20211205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |