CN213906358U - Pulse charging circuit of solar storage battery - Google Patents
Pulse charging circuit of solar storage battery Download PDFInfo
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- CN213906358U CN213906358U CN202022963840.1U CN202022963840U CN213906358U CN 213906358 U CN213906358 U CN 213906358U CN 202022963840 U CN202022963840 U CN 202022963840U CN 213906358 U CN213906358 U CN 213906358U
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- 238000010278 pulse charging Methods 0.000 title claims abstract description 17
- 238000007600 charging Methods 0.000 claims abstract description 71
- 239000003990 capacitor Substances 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 23
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 230000010287 polarization Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
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Abstract
The utility model discloses a solar battery's pulse charging circuit, reach the adjustable auto-change over circuit rather than being connected including adjustable charge-discharge circuit, adjustable charge-discharge circuit includes adjustable pulse main circuit, charging circuit and discharge circuit, and adjustable charge-discharge circuit is used for charging to solar battery pulse, and charging speed is adjustable, and adjustable auto-change over circuit is used for dashing to the settlement voltage after automatic switch-over to trickle float the state from the solar battery, and sets for the voltage adjustable. The utility model discloses can charge to the automatic shutdown pulse heavy current when setting for the voltage at solar battery, change to trickle and float and fill the state to keep solar battery to be in the state that fills sufficient electricity and not overcharging, and be applicable to being full of the solar battery of multiple capacity and in time stop, still can come the adjustment charge speed as required according to the charging condition.
Description
Technical Field
The utility model relates to a solar energy pulse field of charging specifically is a pulse charging circuit of solar battery.
Background
Solar energy is a main environmental protection new energy, and is widely used in various industries, and in order to pursue high efficiency and practicability of a solar power generation system, the solar power generation system generally adopts an MPPT solar controller, is equipped with an inverter and the like, so that the system can charge a solar storage battery with maximum power output, and the solar storage battery can be inverted into alternating current to supply power for an external load, and is provided with a battery management system to ensure performance and safety of the solar storage battery.
The pulse charging is to rapidly charge the battery by using a large pulse current, and to ensure that the battery can be discharged intermittently during charging, the charging and discharging are carried out circularly, and the charging time is longer than the discharging time. The polarization voltage generated in the battery can block the charging of the battery when the battery is charged, and particularly in the later period of quick charging, the air output rate and the temperature rise are obviously improved. If a discharge path is provided for the battery to be discharged in the reverse direction, the polarization is rapidly lost, and the temperature in the battery is also lowered by the discharge. Therefore, in the process of charging the battery, the charging is suspended timely, and the discharging pulse is added properly, so that various polarization voltages can be eliminated quickly and effectively, and the charging speed is improved.
In the prior art, there is a solar power generation system combining pulse charging and MPPT charging, such as a dual-mode charging solar power generation system and a solar power generation apparatus disclosed in chinese patent document CN209805492U, which can perform MPPT fast charging on a solar battery under a high irradiance condition and perform pulse fast charging on the solar battery under a low irradiance condition. However, when the pulse is used for rapid charging, the charging current is dozens of times of the conventional current, and the rapid charging is stopped in time after the pulse is sufficiently charged, so that the battery is overcharged, and the use safety and the service life of the battery are reduced. However, in the conventional solar power generation system, the full charge stop of the pulse charging circuit is generally only applicable to a single-capacity solar battery, and the full charge stop cannot be adjusted in a targeted manner for solar batteries of various capacities. In addition, the charging speed of the pulse charging circuit in the conventional solar power generation system is usually set to be constant, and cannot be adjusted according to the actual charging condition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve prior art's above-mentioned problem, provide a solar battery's pulse charging circuit, it can automatic switch-over to trickle float the state of charging after solar battery dashes to the settlement voltage, and charging speed and settlement voltage all can be adjusted as required.
The purpose of the utility model is mainly realized through the following technical scheme: the pulse charging circuit of the solar storage battery comprises an adjustable charging and discharging circuit and an adjustable self-switching circuit connected with the adjustable charging and discharging circuit, wherein the adjustable charging and discharging circuit comprises an adjustable pulse main circuit, a charging circuit and a discharging circuit, the adjustable charging and discharging circuit is used for charging the solar storage battery in a pulse mode, the charging speed is adjustable, the adjustable self-switching circuit is used for automatically switching to a trickle floating charge state after the solar storage battery is charged to a set voltage, and the set voltage is adjustable.
Preferably, the adjustable pulse main circuit comprises a time base chip A1, a transformer T1, rectifier diodes VD1 to VD4, a voltage stabilizing diode VD5, a potentiometer RP1, a resistor R1 and a capacitor C1; the charging circuit comprises resistors R3, R6 and R8, a capacitor C3, a light-emitting diode VD7, a triode VT2 and a triode VT 4; the discharge circuit comprises resistors R4, R7 and R9, a capacitor C2, a light-emitting diode VD8, a triode VT3 and a triode VT 5; the primary side of a transformer T1 is connected with a power supply, the secondary side of the transformer T1 is connected with a rectifier bridge formed by rectifier diodes VD1 to VD4 and then is connected with the anode of a capacitor C3 to serve as a power supply end, the power supply end is connected with the sliding end and a fixed end of a potentiometer RP1, a pin 8 of a time-base chip A1, the anode of a light-emitting diode VD7, an emitter of a triode VT3 and one end of a resistor R8, and the cathode of the capacitor C3 is grounded; the other fixed end of the potentiometer RP1 is connected with one end of a resistor R1 and then connected with a pin 7 of a time base chip A1, the other end of the resistor R1 is connected with the anode of a capacitor C1 and then connected with a pin 2 and a pin 6 of a time base chip A1, the cathode of the capacitor C1 is connected with the anode of a voltage regulator tube VD5 and then grounded, and the cathode of the voltage regulator tube VD5 is connected with a pin 5 of the time base chip A1; a pin 3 of the time-base chip A1 is connected with the negative electrode of a capacitor C2 and then connected with one end of a resistor R3, the other end of the resistor R3 is connected with the base level of a triode VT2, the emitter of the triode VT2 is grounded, the collector of the triode VT2 is connected with one end of a resistor R6 and then connected with the base level of the triode VT4, the other end of the resistor R6 is connected with the negative electrode of a light-emitting diode VD7, the emitter of the triode VT4 is connected with the other end of the resistor R8, and the collector of the triode VT4 is connected with the collector of the triode VT5 and then connected with the positive electrode of a solar battery; the positive electrode of the capacitor C2 is connected with the resistor R4 and then connected with the base level of the triode VT3, the collector electrode of the triode VT3 is connected with one end of the resistor R7 and the positive electrode of the reflecting diode VD8 and then connected with the base level of the triode VT5, the emitter electrode of the triode VT5 is connected with the resistor R9 and then grounded, and the other end of the resistor R7 and the negative electrode of the reflecting diode VD8 are both grounded.
Preferably, the adjustable self-switching circuit comprises resistors R2, R5, R10 to R12, a potentiometer RP2, a light-emitting diode VD6, triodes VT1 and VT 6; one fixed end of a potentiometer RP2 is connected with the anode of a solar storage battery, the other fixed end of the potentiometer RP2 is grounded, the sliding end of the potentiometer RP2 is connected with a resistor R5 and then connected with a triode VT1 base stage and a triode VT6 base stage, the emitter of the triode VT1 is grounded, the collector of the triode VT1 is connected with one end of a resistor R2 and then connected with a pin 4 of a time base chip A1 of an adjustable pulse main circuit, the other end of the resistor R2 is connected with the cathode of a light emitting diode VD6, and the anode of the light emitting diode VD6 is connected with the power supply end of the adjustable pulse main circuit; the collector of the triode VT6 is connected with the power supply end of the main circuit of the adjustable pulse, and the emitter of the triode VT6 is connected with the positive electrode of the solar storage battery after being sequentially connected with the resistors R10 to R12.
To sum up, the utility model discloses following beneficial effect has: the adjustable self-switching circuit can automatically stop pulse heavy current charging when the solar storage battery is charged to a set voltage, and the charging is converted into a trickle floating charging state, so that the solar storage battery is kept in a fully charged and non-overcharged state. In addition, the potentiometers RP1 and RP2 are arranged, so that the set voltage can be adjusted to be suitable for full charging of solar storage batteries with various capacities to stop in time, and the charging speed can be adjusted as required according to the charging condition.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a circuit diagram of an embodiment of the present invention.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
It should be noted that unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): the pulse charging circuit of the solar storage battery comprises an adjustable charging and discharging circuit and an adjustable self-switching circuit connected with the adjustable charging and discharging circuit, wherein the adjustable charging and discharging circuit comprises an adjustable pulse main circuit, a charging circuit and a discharging circuit, the adjustable charging and discharging circuit is used for charging the solar storage battery in a pulse mode, the charging speed is adjustable, the adjustable self-switching circuit is used for automatically switching to a trickle floating charge state after the solar storage battery is charged to a set voltage, and the set voltage is adjustable.
Specifically, the adjustable pulse main circuit comprises a time base chip A1, a transformer T1, rectifier diodes VD 1-VD 4, a voltage stabilizing diode VD5, a potentiometer RP1, a resistor R1 and a capacitor C1; the charging circuit comprises resistors R3, R6 and R8, a capacitor C3, a light-emitting diode VD7, a triode VT2 and a triode VT 4; the discharge circuit comprises resistors R4, R7 and R9, a capacitor C2, a light-emitting diode VD8, a triode VT3 and a triode VT 5; the primary side of a transformer T1 is connected with a power supply, the secondary side of the transformer T1 is connected with a rectifier bridge formed by rectifier diodes VD1 to VD4 and then is connected with the anode of a capacitor C3 to serve as a power supply end, the power supply end is connected with the sliding end and a fixed end of a potentiometer RP1, a pin 8 of a time-base chip A1, the anode of a light-emitting diode VD7, an emitter of a triode VT3 and one end of a resistor R8, and the cathode of the capacitor C3 is grounded; the other fixed end of the potentiometer RP1 is connected with one end of a resistor R1 and then connected with a pin 7 of a time base chip A1, the other end of the resistor R1 is connected with the anode of a capacitor C1 and then connected with a pin 2 and a pin 6 of a time base chip A1, the cathode of the capacitor C1 is connected with the anode of a voltage regulator tube VD5 and then grounded, and the cathode of the voltage regulator tube VD5 is connected with a pin 5 of the time base chip A1; a pin 3 of the time-base chip A1 is connected with the negative electrode of a capacitor C2 and then connected with one end of a resistor R3, the other end of the resistor R3 is connected with the base level of a triode VT2, the emitter of the triode VT2 is grounded, the collector of the triode VT2 is connected with one end of a resistor R6 and then connected with the base level of the triode VT4, the other end of the resistor R6 is connected with the negative electrode of a light-emitting diode VD7, the emitter of the triode VT4 is connected with the other end of the resistor R8, and the collector of the triode VT4 is connected with the collector of the triode VT5 and then connected with the positive electrode of a solar battery; the positive electrode of the capacitor C2 is connected with the resistor R4 and then connected with the base level of the triode VT3, the collector electrode of the triode VT3 is connected with one end of the resistor R7 and the positive electrode of the reflecting diode VD8 and then connected with the base level of the triode VT5, the emitter electrode of the triode VT5 is connected with the resistor R9 and then grounded, and the other end of the resistor R7 and the negative electrode of the reflecting diode VD8 are both grounded.
The circuit principle is as follows: the power supply is reduced in voltage by a transformer T1, rectified by a rectifier bridge consisting of rectifier diodes VD1 to VD4, filtered by a C3, and then obtains direct current voltage at two ends of the C3 for charging a solar storage battery and using other devices of a circuit. After the power supply is switched on, the direct current voltage charges the capacitor C1 through the RP1 and the R1, and the voltage at the two ends of the capacitor C1 cannot change suddenly, so the pin 2 of the A1 is at a low potential, and the pulse output by the pin 3 of the A1 is at a high potential. High level voltage is added to the base of the transistor VT2 through R3, the VT2 is conducted in saturation, the collector of the transistor is low in potential, the base of the transistor VT4 is low in potential, the VT4 is also conducted in saturation, and direct current voltage at the power supply end charges the battery through R8 and VT 4. Since the transistor VT2 is turned on, the light emitting diode VD7 is also turned on in the forward direction, and VD7 lights up a yellow light, indicating that the circuit is in a charging state.
With the progress of charging of C1, the voltage across C1 rises, the voltage of pin 2 of A1 also rises, when the voltage is greater than the reference voltage of pin 5 of A1, the internal circuit of A1 is inverted, the electric energy on the capacitor C1 is discharged through the internal circuits of R1, pin 7 of A1 and A1, the pulse output by pin 3 of A1 is at low potential, so that VT3 is conducted, and the DC voltage at the power supply end charges the capacitor C2 through VT3, pin 1 of R4, C2, pin 3 of A1, the internal circuit of A1 and pin 1 of A1. The triode VT3 is in saturated conduction, the collector voltage of the triode VT3 is increased, the base voltage of the triode VT5 is increased, the VT5 is in saturated conduction, and the voltage on the solar storage battery is discharged through the VT5, the R9 and the ground. At this time, because the transistor VT3 is turned on, the light emitting diode VD8 is forward biased to turn on to emit light, indicating that the battery is being discharged by the charger. Along with the charging of the C2, the voltage at the two ends of the C2 gradually rises until VT3 is cut off, VD8 is extinguished, and the triode VT5 is cut off, so that the discharging of the solar storage battery is stopped.
The charging time of the solar battery (namely the charging time of C1) is determined by the total resistance value after the RP1 and the R1 are connected in series and the capacity of C1, the discharging time of the solar battery (namely the discharging time of C1) is mainly determined by the parameters of C1 and R1, and the charging time is longer than the discharging time. The solar storage battery discharges for a short time under the charging of large current, and the pulse charging is completed by circulating reciprocation. Adjusting RP1 can adjust the charge time of C1, i.e., adjust the solar cell charge time, while adjusting the solar cell charge speed since the discharge time of C2 is not changed, i.e., the solar cell discharge time is not changed.
Specifically, the adjustable self-switching circuit comprises resistors R2, R5, R10 to R12, a potentiometer RP2, a light-emitting diode VD6, a triode VT1 and a VT 6; one fixed end of a potentiometer RP2 is connected with the anode of a solar storage battery, the other fixed end of the potentiometer RP2 is grounded, the sliding end of the potentiometer RP2 is connected with a resistor R5 and then connected with a triode VT1 base stage and a triode VT6 base stage, the emitter of the triode VT1 is grounded, the collector of the triode VT1 is connected with one end of a resistor R2 and then connected with a pin 4 of a time base chip A1 of an adjustable pulse main circuit, the other end of the resistor R2 is connected with the cathode of a light emitting diode VD6, and the anode of the light emitting diode VD6 is connected with the power supply end of the adjustable pulse main circuit; the collector of the triode VT6 is connected with the power supply end of the main circuit of the adjustable pulse, and the emitter of the triode VT6 is connected with the positive electrode of the solar storage battery after being sequentially connected with the resistors R10 to R12.
The circuit principle is as follows: along with the charging of the solar storage battery, the voltage at two ends of the solar storage battery gradually rises, and after the voltage is divided by RP2, the voltage of the base electrodes of the triodes VT1 and VT6 also rises. When the charging voltage of the solar storage battery reaches a set voltage, the voltage divided to VT1 and VT6 also enables the triodes VT1 and VT6 to be in saturated conduction, the VT1 is conducted, so that the pin 4 of the A1 is grounded, the A1 is reset, the oscillation is stopped, no pulse is output, and the large-current pulse charging of the solar storage battery is stopped. Because the triode VT1 is saturated and conducted, the VD6 emits light to indicate that the large-current pulse charging is finished, and meanwhile, the VT6 is conducted to enable the direct-current voltage at the power supply end to be subjected to current limiting through the resistors R10 to R12 and then to continue trickle floating charging on the solar storage battery. By adjusting RP2, when the solar storage batteries with different capacities are charged to the corresponding set voltage, the partial voltage of RP2 just enables the triode VT1 to be in saturated conduction, the A1 is reset, and the oscillation is stopped to finish the pulse large-current charging.
The utility model discloses an adjustable self-switching circuit can charge to the automatic shutdown pulse heavy current when setting for the voltage at solar battery, and the conversion is to trickle float and is filled the state to keep solar battery to be in and to fill sufficient electricity and not overcharge's state. In addition, the potentiometers RP1 and RP2 are arranged, so that the set voltage can be adjusted to be suitable for full charging of solar storage batteries with various capacities to stop in time, and the charging speed can be adjusted as required according to the charging condition.
Parts not described in the above modes can be realized by adopting or referring to the prior art.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.
Claims (3)
1. The utility model provides a pulse charging circuit of solar battery which characterized in that: the charging and discharging device comprises an adjustable charging and discharging circuit and an adjustable self-switching circuit connected with the adjustable charging and discharging circuit, wherein the adjustable charging and discharging circuit comprises an adjustable pulse main circuit, a charging circuit and a discharging circuit, the adjustable charging and discharging circuit is used for charging a solar storage battery in a pulse mode, the charging speed is adjustable, the adjustable self-switching circuit is used for automatically switching to a trickle floating charging state after the solar storage battery is charged to a set voltage, and the set voltage is adjustable.
2. The pulse charging circuit of a solar battery according to claim 1, wherein: the adjustable pulse main circuit comprises a time-base chip A1, a transformer T1, rectifier diodes VD 1-VD 4, a voltage stabilizing diode VD5, a potentiometer RP1, a resistor R1 and a capacitor C1; the charging circuit comprises resistors R3, R6 and R8, a capacitor C3, a light-emitting diode VD7, a triode VT2 and a triode VT 4; the discharge circuit comprises resistors R4, R7 and R9, a capacitor C2, a light-emitting diode VD8, a triode VT3 and a triode VT 5; the primary side of a transformer T1 is connected with a power supply, the secondary side of the transformer T1 is connected with a rectifier bridge formed by rectifier diodes VD1 to VD4 and then is connected with the anode of a capacitor C3 to serve as a power supply end, the power supply end is connected with the sliding end and a fixed end of a potentiometer RP1, a pin 8 of a time-base chip A1, the anode of a light-emitting diode VD7, an emitter of a triode VT3 and one end of a resistor R8, and the cathode of the capacitor C3 is grounded; the other fixed end of the potentiometer RP1 is connected with one end of a resistor R1 and then connected with a pin 7 of a time base chip A1, the other end of the resistor R1 is connected with the anode of a capacitor C1 and then connected with a pin 2 and a pin 6 of a time base chip A1, the cathode of the capacitor C1 is connected with the anode of a voltage regulator tube VD5 and then grounded, and the cathode of the voltage regulator tube VD5 is connected with a pin 5 of the time base chip A1; a pin 3 of the time-base chip A1 is connected with the negative electrode of a capacitor C2 and then connected with one end of a resistor R3, the other end of the resistor R3 is connected with the base level of a triode VT2, the emitter of the triode VT2 is grounded, the collector of the triode VT2 is connected with one end of a resistor R6 and then connected with the base level of the triode VT4, the other end of the resistor R6 is connected with the negative electrode of a light-emitting diode VD7, the emitter of the triode VT4 is connected with the other end of the resistor R8, and the collector of the triode VT4 is connected with the collector of the triode VT5 and then connected with the positive electrode of a solar battery; the positive electrode of the capacitor C2 is connected with the resistor R4 and then connected with the base level of the triode VT3, the collector electrode of the triode VT3 is connected with one end of the resistor R7 and the positive electrode of the reflecting diode VD8 and then connected with the base level of the triode VT5, the emitter electrode of the triode VT5 is connected with the resistor R9 and then grounded, and the other end of the resistor R7 and the negative electrode of the reflecting diode VD8 are both grounded.
3. The pulse charging circuit of a solar battery according to claim 2, wherein: the adjustable self-switching circuit comprises resistors R2, R5, R10-R12, a potentiometer RP2, a light-emitting diode VD6, a triode VT1 and a triode VT 6; one fixed end of a potentiometer RP2 is connected with the anode of a solar storage battery, the other fixed end of the potentiometer RP2 is grounded, the sliding end of the potentiometer RP2 is connected with a resistor R5 and then connected with a triode VT1 base stage and a triode VT6 base stage, the emitter of the triode VT1 is grounded, the collector of the triode VT1 is connected with one end of a resistor R2 and then connected with a pin 4 of a time base chip A1 of an adjustable pulse main circuit, the other end of the resistor R2 is connected with the cathode of a light emitting diode VD6, and the anode of the light emitting diode VD6 is connected with the power supply end of the adjustable pulse main circuit; the collector of the triode VT6 is connected with the power supply end of the main circuit of the adjustable pulse, and the emitter of the triode VT6 is connected with the positive electrode of the solar storage battery after being sequentially connected with the resistors R10 to R12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022963840.1U CN213906358U (en) | 2020-12-11 | 2020-12-11 | Pulse charging circuit of solar storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022963840.1U CN213906358U (en) | 2020-12-11 | 2020-12-11 | Pulse charging circuit of solar storage battery |
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| Publication Number | Publication Date |
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| CN213906358U true CN213906358U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022963840.1U Expired - Fee Related CN213906358U (en) | 2020-12-11 | 2020-12-11 | Pulse charging circuit of solar storage battery |
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| Country | Link |
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| CN (1) | CN213906358U (en) |
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- 2020-12-11 CN CN202022963840.1U patent/CN213906358U/en not_active Expired - Fee Related
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Granted publication date: 20210806 |