CN210669612U - Solar energy charge and discharge control circuit - Google Patents
Solar energy charge and discharge control circuit Download PDFInfo
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- CN210669612U CN210669612U CN201922078439.7U CN201922078439U CN210669612U CN 210669612 U CN210669612 U CN 210669612U CN 201922078439 U CN201922078439 U CN 201922078439U CN 210669612 U CN210669612 U CN 210669612U
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- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a solar charging and discharging control circuit, it includes singlechip unit, light-operated unit, protection unit, indicating unit and a plurality of interface. The singlechip unit comprises a singlechip, the singlechip is connected with the indicating unit, the anode of a 12-pin connection interface J6 of the singlechip, the input end of the light control unit and 1 pin, 2 pins and 3 pins of an MOS (metal oxide semiconductor) chip, the collector of a triode Q2 is connected with 4 pins of the MOS chip, the emitting electrode of the triode Q2 is grounded, the base electrode of the triode Q2 is connected with the singlechip, the anode of a 5 pin and 8 pins of the MOS chip are connected with the anode of an interface J7 and the anode of a load interface, the cathode of a 7 pin of the singlechip is connected with the load interface through a protection unit, and the output. The single chip microcomputer unit detects whether the solar panel outputs through the light control unit, and if so, the output of the battery is stopped, and the battery is charged. The charging was stopped when the battery voltage reached 13.9V. This scheme is applicable to solar energy power supply unit's connection.
Description
Technical Field
The utility model belongs to the technical field of rechargeable battery control and specifically relates to a solar charging and discharging control circuit is related to.
Background
The photovoltaic power generation system is stable and reliable in operation, can generate power as long as the photovoltaic power generation system is provided with the solar cell module, and basically can realize unattended operation and is low in maintenance cost due to the wide adoption of an automatic control technology. The photovoltaic power generation system has stable and reliable working performance and long service life (more than 30 years). The service life of the crystalline silicon solar cell can be as long as 20-35 years. In a photovoltaic power generation system, as long as the design is reasonable and the model selection is proper, the service life of the storage battery can be as long as 10-15 years.
For some unattended equipment, the rechargeable battery is charged through the solar panel when illumination exists, the solar panel directly supplies power for the load, when no illumination exists or the illumination is insufficient, the rechargeable battery supplies power for the load, and a corresponding control circuit is needed to switch and protect the battery for preventing the situation of overcharge and overdischarge.
Disclosure of Invention
The utility model mainly provides a solar charging and discharging control circuit that control solar panel charges rechargeable battery and control rechargeable battery discharge when suitable.
The utility model discloses to above-mentioned technical problem mainly can solve through following technical scheme: a solar charging and discharging control circuit comprises a single chip microcomputer unit, a light control unit, a protection unit, an indication unit and a plurality of interfaces; the singlechip unit comprises a singlechip U1, a pin 3, a pin 5, a pin 6, a pin 8, a pin 9 and a pin 10 of the singlechip U1 are connected with an indicating unit, a pin 12 of the singlechip U1 is connected with the anode of an interface J6 through a resistor R6, the anode of the interface J6 is also connected with the input end of the light control unit and the pin 1, the pin 2 and the pin 3 of the MOS chip, a pin 4 of the MOS chip is connected with the collector of a triode Q2, the emitter of the triode Q2 is grounded, the base of the triode Q2 is connected with the pin 2 of the singlechip U1 through a resistor R8, the pin 5 and the pin 8 of the MOS chip are respectively connected with the anode of an interface J7 through a diode, the anode of the interface J7 is also connected with the anode of a load interface and the input end of a three-terminal voltage regulator tube, the output end of the three-terminal voltage regulator tube is +5V to the pin 1 of the singlechip U1, the cathodes of the interface J6 and the interface 596J 7 are grounded, the, the output end of the protection unit is connected with the negative electrode of the load interface; and a pin 13 of the singlechip U1 is connected with the anode of the interface J7 through a resistor R4, and a pin 4 of the singlechip U1 is connected with the output end of the light control unit.
Interface J6 connects solar panel, and interface J7 connects the battery, and load interface connection load. The single chip microcomputer unit detects whether the solar panel outputs through the light control unit, and if so, the single chip microcomputer unit stops outputting of the battery through the protection unit and charges the battery. The charging was stopped when the battery voltage reached 13.9V. The indicating unit is used for indicating the current state of the system.
Preferably, the protection unit includes a transistor Q5, a transistor Q1 and a MOS tube N1, wherein the base of the transistor Q5 is connected with the pin 7 of the singlechip U1 through a resistor R10, the emitter of the transistor Q5 is grounded, the collector of the transistor Q5 is connected with the base of the transistor Q1 through a resistor R19, a resistor R11 is bridged between the base and the emitter of the transistor Q5, the first end of the resistor R20 is connected with 12V, the second end of the resistor R20 is connected with the collector of the transistor Q5, the collector of the transistor Q1 is connected with the gate of the MOS tube N1 through a resistor R2, the emitter of the transistor Q1 is grounded, a resistor R12 is connected between the base and the emitter of the transistor Q12, the first end of the resistor R12 is connected with 12V and the drain of the MOS tube, the second end of the resistor R12 is connected with the collector of the transistor Q12, the drain of the MOS tube N12 is connected with the negative electrode of the load interface, the source of the transistor N12.
Preferably, the light control unit comprises a triode Q6, a collector of a triode Q6 is connected with a pin 4 of a singlechip U1, a first end of a resistor R24 is connected with +5V, a second end of a resistor R24 is connected with a collector of a triode Q6, an emitter of a triode Q6 is grounded, a base of a triode Q6 is connected with a first end of a resistor R22, a second end of the resistor R22 is connected with a positive electrode of an interface J6, a first end of a resistor R21 is connected with a first end of a resistor R22, a second end of the resistor R22 is grounded, a first end of a resistor R23 is connected with a second end of a resistor R22, a second end of a resistor R23 is grounded, and a capacitor C4 is connected with the resistor.
Preferably, the indicating unit comprises a plurality of LED lamps, the anode of the first LED lamp is connected with the 10 pin of the single chip microcomputer U1 through a resistor R15, the anode of the second LED lamp is connected with the 9 pin of the single chip microcomputer U1 through a resistor R16, the anode of the third LED lamp is connected with the 8 pin of the single chip microcomputer U1 through a resistor R17, the anode of the fourth LED lamp is connected with the 6 pin of the single chip microcomputer U1 through a resistor R18, the first anode of the fifth LED lamp is connected with the 5 pin of the single chip microcomputer U1 through a resistor R14, the second anode of the fifth LED lamp is connected with the 3 pins of the single chip microcomputer U1 through a resistor R13, the cathodes of all the LED lamps are grounded, the first LED lamp, the second LED lamp and the third LED lamp are green LED lamps, the fourth LED lamp is blue LED lamp, and the fifth LED lamp is a red-green double-color LED lamp.
The first LED lamp, the second LED lamp and the third LED lamp are all on when the power is full, the first LED lamp and the second LED lamp are on when the power is 2/3, and the first LED lamp is on when the power is 1/3. And after the equipment is powered on, the fourth LED lamp is turned on. When the battery is charged, the traffic wheel of the fifth LED lamp is shiny, after the battery is fully charged, the green lamps such as the fifth LED lamp are shiny, and when the battery is not charged, the fifth LED lamp is not shiny.
The utility model discloses the beneficial effect who brings is, convenient to use, and the user connects solar panel, battery and load on the interface and just can use, can prevent that the battery from overcharging or putting excessively, protection battery and equipment.
Drawings
Fig. 1, 2 and 3 are schematic circuit diagrams of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1, 2 and 3, the solar charging and discharging control circuit of this embodiment includes a single chip microcomputer unit, a light control unit, a protection unit, an indication unit and a plurality of interfaces; the singlechip unit comprises a singlechip U1, a pin 3, a pin 5, a pin 6, a pin 8, a pin 9 and a pin 10 of the singlechip U1 are connected with an indicating unit, a pin 12 of the singlechip U1 is connected with the anode of an interface J6 through a resistor R6, the anode of the interface J6 is also connected with the input end of a light control unit and the pin 1, the pin 2 and the pin 3 of an MOS chip 9435A, a pin 4 of the MOS chip is connected with the collector of a triode Q2, the emitter of the triode Q2 is grounded, the base of the triode Q2 is connected with the pin 2 of the singlechip U1 through a resistor R8, the pin 5 and the pin 8 of the MOS chip are respectively connected with the anode of an interface J7 through a diode, the anode of the interface 7 is also connected with the anode of a load interface and the input end of a three-terminal voltage stabilizing tube through a fuse tube F1, the output end of the three-terminal voltage stabilizing tube is +5V to the pin 1 of the U1, the cathode of the interface J6 and the interface J6 is grounded, the cathode of the, the output end of the protection unit is connected with the negative electrode of the load interface; and a pin 13 of the singlechip U1 is connected with the anode of the interface J7 through a resistor R4, and a pin 4 of the singlechip U1 is connected with the output end of the light control unit.
Interface J6 connects solar panel, and interface J7 connects the battery, and load interface has 4, and load interface connection load. The single chip microcomputer unit detects whether the solar panel outputs through the light control unit, and if so, the single chip microcomputer unit stops outputting of the battery through the protection unit and charges the battery. The charging was stopped when the battery voltage reached 13.9V. The indicating unit is used for indicating the current state of the system.
The protection unit includes a transistor Q5, a transistor Q1 and a MOS tube N1, wherein the base of the transistor Q5 is connected with the pin 7 of the singlechip U1 through a resistor R10, the emitter of the transistor Q5 is grounded, the collector of the transistor Q5 is connected with the base of the transistor Q1 through a resistor R19, a resistor R11 is bridged between the base and the emitter of the transistor Q5, the first end of the resistor R20 is connected with 12V, the second end of the resistor R20 is connected with the collector of the transistor Q5, the collector of the transistor Q1 is connected with the gate of the MOS tube N1 through a resistor R2, the emitter of the transistor Q1 is grounded, a resistor R12 is connected between the base and the emitter of the transistor Q12, the first end of the resistor R12 is connected with 12V and the drain of the MOS tube, the second end of the resistor R12 is connected with the collector of the transistor Q12, the drain of the MOS tube N12 is connected with the negative electrode of the load interface, the source of the transistor N12.
The light control unit comprises a triode Q6, the collector of a triode Q6 is connected with the 4 pins of a singlechip U1, the first end of a resistor R24 is connected with +5V, the second end of a resistor R24 is connected with the collector of a triode Q6, the emitter of a triode Q6 is grounded, the base of a triode Q6 is connected with the first end of a resistor R22, the second end of a resistor R22 is connected with the positive electrode of an interface J6, the first end of a resistor R21 is connected with the first end of a resistor R22, the second end of a resistor R22 is grounded, the first end of a resistor R23 is connected with the second end of a resistor R22, the second end of a resistor R23 is grounded, and a capacitor C4 is connected with.
The indicating unit includes a plurality of LED lamp, the anodal 10 feet that passes through resistance R15 and connects singlechip U1 of first LED lamp, the anodal 9 feet that passes through resistance R16 and connects singlechip U1 of second LED lamp, the anodal 8 feet that passes through resistance R17 and connects singlechip U1 of third LED lamp, the anodal 6 feet that passes through resistance R18 and connects singlechip U1 of fourth LED lamp, the first anodal 5 feet that passes through resistance R14 and connect singlechip U1 of fifth LED lamp, the anodal 3 feet that passes through resistance R13 and connect singlechip U1 of second of fifth LED lamp, all the negative poles of LED lamp all ground connection, first LED lamp, second LED lamp and third LED lamp are green LED lamp, the fourth LED lamp is blue LED lamp, the fifth LED lamp is red green double-colored LED lamp.
The first LED lamp, the second LED lamp and the third LED lamp are all on when the power is full, the first LED lamp and the second LED lamp are on when the power is 2/3, and the first LED lamp is on when the power is 1/3. And after the equipment is powered on, the fourth LED lamp is turned on. When the battery is charged, the traffic wheel of the fifth LED lamp is shiny, after the battery is fully charged, the green lamps such as the fifth LED lamp are shiny, and when the battery is not charged, the fifth LED lamp is not shiny.
According to the scheme, the singlechip is used for programming and controlling the detection voltage and the voltage indicating lamp to display the current voltage, and the output load thinking has over-discharge and reverse connection protection measures.
The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will occur to those skilled in the art without departing from the principles of the invention or exceeding the scope of the invention as defined by the appended claims.
Although the terms of single chip, protection unit, etc. are used more here, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations that fall within the spirit of the invention.
Claims (4)
1. A solar charging and discharging control circuit is characterized by comprising a single chip microcomputer unit, a light control unit, a protection unit, an indication unit and a plurality of interfaces; the singlechip unit comprises a singlechip U1, a pin 3, a pin 5, a pin 6, a pin 8, a pin 9 and a pin 10 of the singlechip U1 are connected with an indicating unit, a pin 12 of the singlechip U1 is connected with the anode of an interface J6 through a resistor R6, the anode of the interface J6 is also connected with the input end of the light control unit and the pin 1, the pin 2 and the pin 3 of the MOS chip, a pin 4 of the MOS chip is connected with the collector of a triode Q2, the emitter of the triode Q2 is grounded, the base of the triode Q2 is connected with the pin 2 of the singlechip U1 through a resistor R8, the pin 5 and the pin 8 of the MOS chip are respectively connected with the anode of an interface J7 through a diode, the anode of the interface J7 is also connected with the anode of a load interface and the input end of a three-terminal voltage regulator tube, the output end of the three-terminal voltage regulator tube is +5V to the pin 1 of the singlechip U1, the cathodes of the interface J6 and the interface 596J 7 are grounded, the, the output end of the protection unit is connected with the negative electrode of the load interface; and a pin 13 of the singlechip U1 is connected with the anode of the interface J7 through a resistor R4, and a pin 4 of the singlechip U1 is connected with the output end of the light control unit.
2. The solar charging and discharging control circuit according to claim 1, wherein the protection unit comprises a transistor Q5, a transistor Q1 and a MOS transistor N1, the base of the transistor Q5 is connected with the 7 th pin of the singlechip U1 through a resistor R10, the emitter of the transistor Q5 is grounded, the collector of the transistor Q5 is connected with the base of the transistor Q1 through a resistor R19, a resistor R11 is connected across the base and the emitter of the transistor Q5, the first end of the resistor R20 is connected with 12V, the second end of the resistor R20 is connected with the collector of the transistor Q5, the collector of the transistor Q1 is connected with the gate of the MOS transistor N1 through a resistor R2, the emitter of the transistor Q1 is grounded, the resistor R12 is between the base and the emitter of the transistor Q1, the first end of the resistor R1 is connected with 12V and the drain of the MOS transistor, the second end of the resistor R1 is connected with the collector of the transistor Q1, and the drain of the, the source of the MOS transistor N1 is grounded, and the resistor R3 is connected between the gate and the source of the MOS transistor N1 in a bridging manner.
3. The solar charging and discharging control circuit according to claim 1 or 2, wherein the light control unit comprises a triode Q6, a collector of a triode Q6 is connected with a pin 4 of a single chip microcomputer U1, a first end of a resistor R24 is connected with +5V, a second end of a resistor R24 is connected with a collector of a triode Q6, an emitter of a triode Q6 is grounded, a base of a triode Q6 is connected with a first end of a resistor R22, a second end of a resistor R22 is connected with a positive electrode of an interface J6, a first end of a resistor R21 is connected with a first end of a resistor R22, a second end of a resistor R22 is grounded, a first end of a resistor R23 is connected with a second end of a resistor R22, a second end of a resistor R23 is grounded, and a capacitor C4 is connected in parallel with.
4. The solar charging and discharging control circuit as claimed in claim 1 or 2, wherein the indicating unit comprises a plurality of LED lamps, the anode of the first LED lamp is connected to the 10 pin of the single chip microcomputer U1 through a resistor R15, the anode of the second LED lamp is connected to the 9 pin of the single chip microcomputer U1 through a resistor R16, the anode of the third LED lamp is connected to the 8 pin of the single chip microcomputer U1 through a resistor R17, the anode of the fourth LED lamp is connected to the 6 pin of the single chip microcomputer U1 through a resistor R18, the first anode of the fifth LED lamp is connected to the 5 pin of the single chip microcomputer U1 through a resistor R14, the second anode of the fifth LED lamp is connected to the 3 pins of the single chip microcomputer U1 through a resistor R13, the cathodes of all the LED lamps are grounded, the first LED lamp, the second LED lamp and the third LED lamp are green LED lamps, the fourth LED lamp is blue LED lamp, and the fifth LED lamp is a red-green dual-color LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078439.7U CN210669612U (en) | 2019-11-27 | 2019-11-27 | Solar energy charge and discharge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078439.7U CN210669612U (en) | 2019-11-27 | 2019-11-27 | Solar energy charge and discharge control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210669612U true CN210669612U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922078439.7U Expired - Fee Related CN210669612U (en) | 2019-11-27 | 2019-11-27 | Solar energy charge and discharge control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210669612U (en) |
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2019
- 2019-11-27 CN CN201922078439.7U patent/CN210669612U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Granted publication date: 20200602 |