CN109888877A - A kind of solar panel circuit - Google Patents
A kind of solar panel circuit Download PDFInfo
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- CN109888877A CN109888877A CN201910214230.0A CN201910214230A CN109888877A CN 109888877 A CN109888877 A CN 109888877A CN 201910214230 A CN201910214230 A CN 201910214230A CN 109888877 A CN109888877 A CN 109888877A
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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
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- 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
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Abstract
A kind of solar panel circuit belongs to power supply control technical field more particularly to a kind of solar panel circuit.The present invention provides a kind of solar panel circuit of control convenient for charge and discharge.The present invention includes battery, power unit, electric discharge feedback fraction, charging feedback part, discharge portion, live part, load and solar panel, the detection signal input port of its structural feature charging feedback part is connected to the battery, and the detection signal input port for the feedback fraction that discharges is connected to the battery；The detection signal output port of charging feedback part is connected with the detection signal input port of live part, and the detection signal output port for the feedback fraction that discharges is connected with the detection signal input port of discharge portion；The power output port of power unit is connected with the power port of the power port of live part, the power port of discharge portion, feedback fraction respectively, and the power input of power unit is connected to the battery.
Description
Technical field
The invention belongs to power supply control technical field more particularly to a kind of solar panel circuits.
Background technique
Solar panel is that solar radiant energy is passed through photoelectric effect or photochemical effect is straight by absorbing sunlight
Connect or indirect conversion at electric energy device.The charge and discharge control of existing solar panel circuit has much room for improvement.
Summary of the invention
The present invention addresses the above problem, provides a kind of solar panel circuit of control convenient for charge and discharge.
To achieve the above object, the present invention adopts the following technical scheme that, the present invention includes battery, power unit, electric discharge
Feedback fraction, charging feedback part, discharge portion, live part, load and solar panel, structural feature charging feedback
Partial detection signal input port is connected to the battery, detection signal input port and the battery phase of the feedback fraction that discharges
Even；The detection signal output port of charging feedback part is connected with the detection signal input port of live part, feedback section of discharging
The detection signal output port divided is connected with the detection signal input port of discharge portion；
The power output port of power unit respectively with the power port of live part, the power port of discharge portion, feedback section
The power port divided is connected, and the power input of power unit is connected to the battery；
The control of discharge port of discharge portion is connected with load；
The re-charge control port of live part is connected with solar panel, battery respectively.
As a preferred embodiment, power unit of the present invention include 78M09 chip U1, U1 1 foot respectively with capacitor
The one end C3, capacitor C1 anode, the end BAT+, diode D5 cathode are connected, and diode D5 anode connects the end SUN+；Capacitor C1 cathode difference
Be connected with the capacitor C3 other end, 2 feet of U1, ground wire, the one end capacitor C4, capacitor C2 cathode, the capacitor C4 other end respectively with U1 3
Foot, capacitor C2 anode are connected, and 3 feet of U1 are the power output port of power unit.
As another preferred embodiment, diode D5 of the present invention uses 1N5399 type diode, and capacitor C1 uses 220
μ F capacitor, capacitor C3 use 104 capacitors, and capacitor C4 uses 104 capacitors, and capacitor C2 uses 220 μ F capacitors.
As another preferred embodiment, charging feedback part of the present invention includes LM339 chip U5B and NPN triode
11 feet of Q4, U5B respectively with the adjustable side of rheostat RV2, one end of rheostat RV2, NPN triode Q4 emitter, resistance R11
One end is connected, the other end ground connection of rheostat RV2；
10 feet of U5B connect the end BAT+, the resistance R11 other end respectively with NPN triode Q4 collector, 3 feet of U5B, resistance R12 mono-
End, the end+9V are connected, and NPN triode Q4 base stage is connected with 2 feet of U5B, the resistance R12 other end respectively, and 2 feet of U5B are that charging is anti-
Present the detection signal output port of part, the 12 feet ground connection of U5B.
As another preferred embodiment, rheostat RV2 of the present invention uses 50K rheostat, and resistance R11 is using 10K electricity
Resistance, NPN triode Q4 use 9013 triodes, and resistance R12 uses 6.8K resistance.
As another preferred embodiment, the resistance value of rheostat RV2 of the present invention is set in 20K or more.
As another preferred embodiment, electric discharge feedback fraction of the present invention includes LM339 chip U5A and NPN triode
5 feet of Q1, U5A respectively with the adjustable side of rheostat RV1, one end of rheostat RV1, NPN triode Q1 emitter, resistance R1 mono-
End is connected, the other end ground connection of rheostat RV1；
4 feet of U5A connect the end BAT+, the resistance R1 other end respectively with NPN triode Q1 collector, 3 feet of U5A, the one end resistance R2,
The end+9V is connected, and NPN triode Q1 base stage is connected with 1 foot of U5A, the resistance R2 other end respectively, and 1 foot of U5A is electric discharge feedback section
The detection signal output port divided, the 12 feet ground connection of U5A.
As another preferred embodiment, rheostat RV1 of the present invention uses 50K rheostat, and resistance R1 is using 10K electricity
Resistance, NPN triode Q1 use 9013 triodes, and resistance R2 uses 6.8K resistance.
As another preferred embodiment, the resistance value of rheostat RV1 of the present invention is set in 10K.
As another preferred embodiment, discharge portion of the present invention includes that 2 feet of NE555 chip U2, U2 are discharge part
The detection signal input port divided, 3 feet of U2 are connected with the one end resistance R5, the one end resistance R4 respectively, resistance R5 other end sending and receiving
The anode of optical diode D1, the minus earth of light emitting diode D1；
Another termination NPN triode Q1 base stage of resistance R4, NPN triode Q1 emitter ground connection, NPN triode Q1 collector difference
Be connected with the grid of the one end resistance R6, NMOS tube Q2, the drain electrode of NMOS tube Q2 connects the cathode of load, the anode of load respectively with U2
4 feet, 8 feet of U2,6 feet of U2, the resistance R6 other end, power unit power output port be connected；The source electrode of NMOS tube Q2
Ground connection, the 1 foot ground connection of U2,5 feet of U2 are grounded by capacitor C5.
As another preferred embodiment, resistance R5 and resistance R4 of the present invention use 10K resistance, and capacitor C5 uses 103
Capacitor, triode Q1 use 9013 triodes, and resistance R6 uses 10K resistance, and NMOS tube Q2 is managed using 50N60.
As another preferred embodiment, live part of the present invention includes that 2 feet of NE555 chip U3, U3 are charging part
The detection signal input port divided, 3 feet of U3 pass through the anode of resistance R7 sending and receiving optical diode D2, the cathode of light emitting diode D2
Ground connection；
1 foot of U3 is grounded, and 5 feet of U3 connect the control terminal of rheostat RV3, and one end ground connection of rheostat RV3, rheostat RV3's is another
One end connects the power output port of power unit by resistance R3；4,6,8 feet of U3 connect the power output port of power unit；
7 feet of U3 are connected with 2 feet of TLP521 chip U4, light emitting diode D3 cathode respectively, and light emitting diode D3 anode passes through
Resistance R9 is connected with the power output port of the one end resistance R8, power unit respectively, 1 foot of resistance R8 other end U4；3 feet of U4
Ground connection, 4 feet of U4 are connected with the grid of zener diode D4 cathode, the one end resistance R10, NMOS tube Q3 respectively, and resistance R10 is another
The power output port of termination power part, zener diode D4 plus earth, the source electrode ground connection of NMOS tube Q3, NMOS tube Q3's
Drain electrode connects the end SUN-.
Secondly, resistance R3, R7, R8, R9, R10 of the present invention use 10K resistance, rheostat RV3 uses 10K rheostat,
NMOS tube Q3 is managed using 50N60.
In addition, rheostat RV3 of the present invention is adjusted to 5K.
Beneficial effect of the present invention.
The present invention can detect the voltage shape of battery and solar panel by electric discharge feedback fraction, charging feedback part
State, convenient for the control of charge and discharge.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of the following contents.
Fig. 1 is schematic block circuit diagram of the present invention.
Fig. 2 is circuit diagram of the present invention.
Fig. 3,4 be Fig. 2 partial enlarged view.
Specific embodiment
As shown, the present invention includes battery, power unit, electric discharge feedback fraction, charging feedback part, discharge part
Point, live part, load and solar panel；
The detection signal input port of charging feedback part is connected to the battery, the detection signal input port for the feedback fraction that discharges
It is connected to the battery；The detection signal output port of charging feedback part is connected with the detection signal input port of live part,
The detection signal output port of electric discharge feedback fraction is connected with the detection signal input port of discharge portion；
The power output port of power unit respectively with the power port of live part, the power port of discharge portion, feedback section
The power port divided is connected, and the power input of power unit is connected to the battery；
The control of discharge port of discharge portion is connected with load；
The re-charge control port of live part is connected with solar panel, battery respectively.
The power unit include 78M09 chip U1, U1 1 foot respectively with the one end capacitor C3, capacitor C1 anode, BAT+
End, diode D5 cathode are connected, and diode D5 anode connects the end SUN+；Capacitor C1 cathode respectively with the capacitor C3 other end, U1 2
Foot, ground wire, the one end capacitor C4, capacitor C2 cathode are connected, and the capacitor C4 other end is connected with 3 feet of U1, capacitor C2 anode respectively, U1
3 feet be power unit power output port.
The diode D5 uses 1N5399 type diode, and capacitor C1 uses 220 μ F capacitors, and capacitor C3 uses 104 capacitors,
Capacitor C4 uses 104 capacitors, and capacitor C2 uses 220 μ F capacitors.
The charging feedback part include LM339 chip U5B and NPN triode Q4, U5B 11 feet respectively with rheostat
The adjustable side of RV2, one end of rheostat RV2, NPN triode Q4 emitter, the one end resistance R11 are connected, and rheostat RV2's is another
End ground connection；
10 feet of U5B connect the end BAT+, the resistance R11 other end respectively with NPN triode Q4 collector, 3 feet of U5B, resistance R12 mono-
End, the end+9V are connected, and NPN triode Q4 base stage is connected with 2 feet of U5B, the resistance R12 other end respectively, and 2 feet of U5B are that charging is anti-
Present the detection signal output port of part, the 12 feet ground connection of U5B.
LM339 chip offset voltage is small, and supply voltage range is wide.
The rheostat RV2 uses 50K rheostat, and resistance R11 uses 10K resistance, and NPN triode Q4 uses 9,013 3 poles
Pipe, resistance R12 use 6.8K resistance.
The resistance value of the rheostat RV2 is set in 20K or more.
The electric discharge feedback fraction includes LM339 chip U5A and NPN triode Q1,5 feet of U5A respectively with rheostat RV1
Adjustable side, one end of rheostat RV1, NPN triode Q1 emitter, the one end resistance R1 be connected, another termination of rheostat RV1
Ground；
4 feet of U5A connect the end BAT+, the resistance R1 other end respectively with NPN triode Q1 collector, 3 feet of U5A, the one end resistance R2,
The end+9V is connected, and NPN triode Q1 base stage is connected with 1 foot of U5A, the resistance R2 other end respectively, and 1 foot of U5A is electric discharge feedback section
The detection signal output port divided, the 12 feet ground connection of U5A.
The rheostat RV1 uses 50K rheostat, and resistance R1 uses 10K resistance, and NPN triode Q1 uses 9,013 3 poles
Pipe, resistance R2 use 6.8K resistance.
The resistance value of the rheostat RV1 is set in 10K.
The discharge portion include NE555 chip U2, U2 2 feet be discharge portion detection signal input port, the 3 of U2
Foot is connected with the one end resistance R5, the one end resistance R4 respectively, the anode of resistance R5 other end sending and receiving optical diode D1, light emitting diode
The minus earth of D1；
Another termination NPN triode Q1 base stage of resistance R4, NPN triode Q1 emitter ground connection, NPN triode Q1 collector difference
Be connected with the grid of the one end resistance R6, NMOS tube Q2, the drain electrode of NMOS tube Q2 connects the cathode of load, the anode of load respectively with U2
4 feet, 8 feet of U2,6 feet of U2, the resistance R6 other end, power unit power output port be connected；The source electrode of NMOS tube Q2
Ground connection, the 1 foot ground connection of U2,5 feet of U2 are grounded by capacitor C5.
The resistance R5 and resistance R4 uses 10K resistance, and capacitor C5 uses 103 capacitors, and triode Q1 uses 9,013 3 poles
Pipe, resistance R6 use 10K resistance, and NMOS tube Q2 is managed using 50N60.
Capacitor C5 uses 103 capacitors, guarantees that trigger voltage is subject to VCC.
The live part include NE555 chip U3, U3 2 feet be live part detection signal input port, the 3 of U3
Foot passes through the anode of resistance R7 sending and receiving optical diode D2, the minus earth of light emitting diode D2；
1 foot of U3 is grounded, and 5 feet of U3 connect the control terminal of rheostat RV3, and one end ground connection of rheostat RV3, rheostat RV3's is another
One end connects the power output port of power unit by resistance R3；4,6,8 feet of U3 connect the power output port of power unit；
7 feet of U3 are connected with 2 feet of TLP521 chip U4, light emitting diode D3 cathode respectively, and light emitting diode D3 anode passes through
Resistance R9 is connected with the power output port of the one end resistance R8, power unit respectively, 1 foot of resistance R8 other end U4；3 feet of U4
Ground connection, 4 feet of U4 are connected with the grid of zener diode D4 cathode, the one end resistance R10, NMOS tube Q3 respectively, and resistance R10 is another
The power output port of termination power part, zener diode D4 plus earth, the source electrode ground connection of NMOS tube Q3, NMOS tube Q3's
Drain electrode connects the end SUN-.
Output frequency is adjusted by adjusting slide rheostat RV3.
Described resistance R3, R7, R8, R9, R10 use 10K resistance, and rheostat RV3 uses 10K rheostat, and NMOS tube Q3 is adopted
It is managed with 50N60.
Battery cathode BAT- ground connection, BAT+ are anode, and SUN+ is solar panel anode, and SUN- is solar-electricity
Pond plate cathode.
The rheostat RV3 is adjusted to 5K.
Illustrate the course of work of the invention with reference to the accompanying drawing.
It is connected and disconnected from switching tube Q3, solar panel can be made to charge battery.Just for isolation solar panel
Pole and battery positive voltage have used high current rectifier diode 1N5339(D5), when solar cell panel voltages are greater than battery
When voltage, D5 forward conduction is started to charge, when solar cell panel voltages are less than battery voltage, that is, after darkness,
The electric current of battery cannot recoil solar panel.
Live part: voltage detection circuit part is constituted during U5B and periphery.Battery voltage is greater than solar panel
When voltage, the output open circuit of LM339, voltage detecting circuit does not work, and the emitter follower Q4 as positive feedback is conducting.When
When solar cell panel voltages are greater than battery voltage, comparator overturning exports and ends for 0V, Q4, the output voltage of U5B is with regard to complete
It is decided by the partial pressure value of R11 and RV2 entirely, the resistance value of RV2 is set in 20K or more at this time, and the 5 foot input voltages of U5B is made to be less than 6V
(being probably 4.5V, Vu5b=9*R11/R11+RV2 at this time), this just makes the state after overturning extremely stable, it is attached to avoid pressure point
Closely phenomenon unstable due to caused by the fluctuation of battery voltage very little, to stablize U3 start-up operation of setting out.
The 3 foot output voltages for making chip U3, light indication LED (D2), RV3 are adjusted to 5K, provide reliable battery and fill
Electrical impulse frequency, the voltage of the 5 feet input of U3 is 1.5V, the frequency and duty ratio of adjustment 7 feet output at this time.7 foot output ends with
Photoelectrical coupler U4(TLP521) 2 feet be connected, 1 foot of U4 is always 9V, and there are the height of certain frequency for the voltage of 2 feet of U4
Variation, has reached photodetachment, controls NMOS tube Q3(50N60) movement, by the folding of Q3, battery terminal negative and solar energy
The connection of solar panel cathode disconnects, and reaches the function of pulse charge.
By the restriction of each component parameters, certain return difference (sluggishness) is manufactured, after battery voltage is greater than 28.8V, than
It overturns, exports as height again compared with device, Q4 conducting, the output voltage of U5B will not trigger U3 between 3V ~ 6V at this time, and then will not
Photoelectrical coupler U4 is connected, stops charging, to have the function that protect battery.
Discharge portion: current detection section is made of U5A and peripheral circuit, and testing principle is as live part, the two
Difference be that RV1 is different from the setting resistance value of RV2, when battery voltage i.e. solar cell panel voltages are less than 18.8V
When, battery is in over-discharge state, the resistance value of RV1 is set in 10K, the 5 foot input voltages of U5A are greater than 6V and are less than 9V
(Vu5a=9*R1/R1+RV1), U5A output voltage are 0V, U2 work will not be triggered, to will not discharge.
When battery voltage is greater than 18.8V, U5A output voltage is 3V ~ 6V, and triggering U2 starts to work, and makes 3 feet output electricity
Pressure, while lighting indication LED (D1), turn-on transistor Q1(C9013), and then just to the pole G one of NMOS tube Q2(50N60)
To voltage, pipe C, E two-stage is connected, discharge portion work, powering load.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (5)
1. a kind of solar panel circuit, including battery, power unit, electric discharge feedback fraction, charging feedback part, electric discharge
Partially, live part, load and solar panel, it is characterised in that the detection signal input port and storage of charging feedback part
Battery is connected, and the detection signal input port for the feedback fraction that discharges is connected to the battery；The detection signal of charging feedback part is defeated
Exit port is connected with the detection signal input port of live part, the detection signal output port and discharge part of the feedback fraction that discharges
The detection signal input port divided is connected；
The power output port of power unit respectively with the power port of live part, the power port of discharge portion, feedback section
The power port divided is connected, and the power input of power unit is connected to the battery；
The control of discharge port of discharge portion is connected with load；
The re-charge control port of live part is connected with solar panel, battery respectively；
The discharge portion includes that 2 feet of NE555 chip U2, U2 are the detection signal input port of discharge portion, 3 feet point of U2
It is not connected with the one end resistance R5, the one end resistance R4, the anode of resistance R5 other end sending and receiving optical diode D1, light emitting diode D1's
Minus earth；
Another termination NPN triode Q1 base stage of resistance R4, NPN triode Q1 emitter ground connection, NPN triode Q1 collector difference
Be connected with the grid of the one end resistance R6, NMOS tube Q2, the drain electrode of NMOS tube Q2 connects the cathode of load, the anode of load respectively with U2
4 feet, 8 feet of U2,6 feet of U2, the resistance R6 other end, power unit power output port be connected；The source electrode of NMOS tube Q2
Ground connection, the 1 foot ground connection of U2,5 feet of U2 are grounded by capacitor C5.
2. a kind of solar panel circuit according to claim 1, it is characterised in that the resistance R5 and resistance R4 is used
10K resistance, capacitor C5 use 103 capacitors, and triode Q1 uses 9013 triodes, and resistance R6 uses 10K resistance, and NMOS tube Q2 is adopted
It is managed with 50N60.
3. a kind of solar panel circuit according to claim 1, it is characterised in that the live part includes NE555 core
2 feet of piece U3, U3 are the detection signal input port of live part, and 3 feet of U3 pass through the sun of resistance R7 sending and receiving optical diode D2
Pole, the minus earth of light emitting diode D2；
1 foot of U3 is grounded, and 5 feet of U3 connect the control terminal of rheostat RV3, and one end ground connection of rheostat RV3, rheostat RV3's is another
One end connects the power output port of power unit by resistance R3；4,6,8 feet of U3 connect the power output port of power unit；
7 feet of U3 are connected with 2 feet of TLP521 chip U4, light emitting diode D3 cathode respectively, and light emitting diode D3 anode passes through
Resistance R9 is connected with the power output port of the one end resistance R8, power unit respectively, 1 foot of resistance R8 other end U4；3 feet of U4
Ground connection, 4 feet of U4 are connected with the grid of zener diode D4 cathode, the one end resistance R10, NMOS tube Q3 respectively, and resistance R10 is another
The power output port of termination power part, zener diode D4 plus earth, the source electrode ground connection of NMOS tube Q3, NMOS tube Q3's
Drain electrode connects the end SUN-.
4. a kind of solar panel circuit according to claim 3, it is characterised in that described resistance R3, R7, R8, R9, R10
Using 10K resistance, rheostat RV3 uses 10K rheostat, and NMOS tube Q3 is managed using 50N60.
5. a kind of solar panel circuit according to claim 3, it is characterised in that the rheostat RV3 is adjusted to 5K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214230.0A CN109888877B (en) | 2019-03-20 | 2019-03-20 | Solar cell panel circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214230.0A CN109888877B (en) | 2019-03-20 | 2019-03-20 | Solar cell panel circuit |
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| CN109888877A true CN109888877A (en) | 2019-06-14 |
| CN109888877B CN109888877B (en) | 2023-11-14 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109888877B (en) | 2023-11-14 |
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Address after: No.85 Xigang North Road, Haigang District, Qinhuangdao City, Hebei Province, 066000, 7-101 Patentee after: Qinhuangdao Youke Automation Control System Co.,Ltd. Country or region after: China Address before: 066000 7-101, entrepreneurship center, 85 Xigang North Road, Haigang District, Qinhuangdao City, Hebei Province Patentee before: QINHUANGDAO DONGKONG ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region before: China |