CN218335406U - Intelligent solar controller - Google Patents
Intelligent solar controller Download PDFInfo
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- CN218335406U CN218335406U CN202222063617.0U CN202222063617U CN218335406U CN 218335406 U CN218335406 U CN 218335406U CN 202222063617 U CN202222063617 U CN 202222063617U CN 218335406 U CN218335406 U CN 218335406U
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Abstract
The utility model relates to a solar energy power generation technical field, intelligent solar controller is proposed, including the control unit, charging circuit, voltage sampling circuit and charging protection circuit, the output of photovoltaic board is connected to charging circuit's input, charging protection circuit is connected to charging circuit's output, the battery is connected to charging protection circuit's output, the output of photovoltaic board is connected to voltage sampling circuit's input, voltage sampling circuit's output connection control unit, the control unit connects charging circuit, through the technical scheme, solar controller can only work under specific solar illumination intensity among the prior art has been solved, can not make full use of solar energy, make the efficiency greatly reduced's of system problem.
Description
Technical Field
The utility model relates to a solar energy power generation technical field, it is specific, relate to intelligent solar control ware.
Background
With the development of science and technology, solar photovoltaic power generation technology is more widely applied in modern times, solar energy is used as renewable energy, and in order to better utilize the energy, solar energy technology is continuously developed towards a more comprehensive direction. In the prior art, various solar system controllers are proposed, and a BUCK or BOOST circuit is generally adopted in the existing solar controller in the process of charging and discharging a storage battery, and has certain defects. When the storage battery needs to be charged, for the BUCK circuit, the output voltage of the photovoltaic panel is required to be smaller than the terminal voltage of the storage battery, and the storage battery cannot be charged when the illumination intensity is strong; for the BOOST circuit, the output voltage of the photovoltaic panel must be greater than the terminal voltage of the storage battery, and the storage battery cannot be charged when the illumination intensity is weak; in the traditional topological structure, electric energy output by the photovoltaic panel is processed by the DC-DC converter, so that the efficiency of the whole solar power generation system depends on the efficiency of the DC-DC converter, and as the BUCK or BOOST circuit can only work under specific solar illumination intensity, solar energy cannot be fully utilized, and the efficiency of the system is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligence solar control ware has solved among the prior art solar control ware and can only work under specific solar illumination intensity, can not make full use of solar energy for the efficiency greatly reduced's of system problem.
The technical scheme of the utility model as follows:
intelligence solar control ware, including control unit, charging circuit, voltage sampling circuit and charging protection circuit, the output of photovoltaic board is connected to charging circuit's input, charging circuit's output is connected charging protection circuit, the battery is connected to charging protection circuit's output, the output of photovoltaic board is connected to voltage sampling circuit's input, voltage sampling circuit's output is connected the control unit, the control unit is connected charging circuit, charging circuit includes electric capacity C1, field effect transistor Q1 resistance R1, inductance L1, diode D1 and electric capacity C2, the positive pole of photovoltaic board output is connected to field effect transistor Q1's drain electrode, field effect transistor Q1's gate is connected the control unit, field effect transistor Q1's gate passes through resistance R1 connects field effect transistor Q1's source electrode, field effect transistor Q1's source electrode is connected diode D1's positive pole, the positive pole of electric capacity C1's positive pole connection photovoltaic board output, the negative pole of photovoltaic board output is connected to electric capacity C1's negative pole, inductance D1's positive pole is connected the negative pole of inductance L1, the negative pole of electric capacity C1 connects the negative pole of photovoltaic board output, the negative pole of negative pole connection diode D2, the negative pole of electric capacity C2 negative pole connection photovoltaic board output, the negative pole of negative pole connection of negative pole connection.
Further, the utility model discloses in voltage sampling circuit includes that resistance R2, resistance R3, resistance R4, resistance R5, fortune are put U1, resistance R6, electric capacity C4, opto-coupler U2, opto-coupler U3, resistance R7 and resistance R8, the positive pole of photovoltaic board output is connected to resistance R2's first end, resistance R2's second end passes through resistance R3 connects U1's homophase input is put to fortune, U1's inverting input is put to fortune passes through the negative pole of photovoltaic board output is connected to resistance R5, resistance R4 connects resistance R2's second end, the negative pole of photovoltaic board output is connected to resistance R4's second end, U1's output is put to fortune passes through electric capacity C4 connects U1's inverting input is put to fortune, U1's output passes through resistance R6 connects opto-coupler U2's first input, U2's second input is connected U3's first input, U2's first output is connected to opto-coupler U2's first output, U2's first output is connected to opto-coupler U2's inverting input, the output is connected to opto-coupler U3's negative pole, and the output is connected to opto-coupler U3 output, the second output is connected to opto-coupler U3 output, the negative pole of opto-coupler U3 output is connected to the output.
Further, in the utility model discloses in charging protection circuit includes that stabilivolt D3, resistance R9, resistance R10, resistance R11, resistance R12, stabilivolt D4, fortune are put U4, resistance R13, resistance R14, resistance R15, triode Q2, resistance R16, resistance R17 and resistance R18, stabilivolt D3's negative pole is connected charging circuit's output, stabilivolt D3's positive pole passes through resistance R9 ground connection, resistance R10's first end is connected charging circuit's output, resistance R10's second end is connected stabilivolt D4's negative pole, stabilivolt D4's positive pole ground connection, the in-phase input end of fortune putting U4 passes through resistance R11 connects resistance R10's second end, the in-phase input end of fortune putting U4 passes through resistance R12 ground connection, the input end of fortune putting U4 passes through resistance R18 ground connection, the output of fortune putting U4 passes through resistance R13 connects triode Q2's base, resistance R14's first end connects the output of charging circuit's negative pole the negative pole of charging resistance R17, the negative pole of storage battery R17 connects the negative pole of resistance R17, the negative pole of storage battery R17, the negative pole of storage battery is connected resistor R17.
Further, the utility model discloses in still including the protection circuit that discharges, the protection circuit that discharges includes stabilivolt D5, resistance R19, resistance R20, resistance R21, resistance R22, fortune are put U5, resistance R23, resistance R24, triode Q3, diode D6, resistance R27, diode D8 and relay K1, the positive pole of battery is connected to stabilivolt D5's negative pole, stabilivolt D5's positive pole passes through resistance R19 ground connection, fortune is put U5's inverting input and is passed through resistance R20 connects stabilivolt D5's positive pole, fortune is put U5's homophase input and is passed through resistance R22 connects the positive pole of battery, fortune is put U5's homophase input and is passed through resistance R21 ground connection, fortune is put U5's output and is passed through resistance R23 connects the positive pole of battery, fortune is put U5's output passes through resistance R24 connects triode Q3's base, triode Q3's projecting pole connection battery positive pole, diode Q3's positive pole is connected diode D6's positive pole the collecting electrode passes through the second input of relay K1 negative pole connection electric relay K1, the negative pole of battery is connected the input end and is connected the negative pole of battery K1, the negative pole of battery is connected.
The utility model discloses a theory of operation and beneficial effect do:
in the utility model, a voltage sampling circuit is connected in parallel between the photovoltaic panel output and the charging circuit, the maximum power point output by the photovoltaic panel is collected, the maximum power point output by the photovoltaic panel is in a certain voltage range, the range is set to be E1-E2, the output voltage of the photovoltaic panel is sent to a control unit through the voltage sampling circuit, when the output voltage reaches a certain voltage E2 near the maximum power point, the control unit sends a PWM control signal to a grid electrode of a field effect tube Q1, the field effect tube Q1 is conducted, the photovoltaic panel and a capacitor C1 charge a storage battery at the same time, and the voltage output by the capacitor C1 and the photovoltaic panel is reduced after a period of time; when the output voltage is reduced to E1, the control unit stops sending PWM control signals to the grid electrode of the field-effect tube Q1, the field-effect tube Q1 is turned off, at the moment, the photovoltaic panel only charges the capacitor C1, energy is stored on the capacitor C1, the voltage of the capacitor C1 is increased at the moment, when the voltage of the capacitor C1 reaches E2, the field-effect tube Q1 is conducted again, and the storage battery is charged in a reciprocating mode. When the illumination is weak, the photovoltaic panel stores electric energy in the capacitor C1 at first, and then transfers the electric energy to the storage battery when the voltage of the capacitor reaches the maximum power point, so that the storage battery can be charged no matter how small the current of the photovoltaic panel is, the current in the photovoltaic panel is extracted to the maximum extent, and the solar energy is fully utilized. In order to prevent the overshoot phenomenon of the storage battery, a charging protection circuit is added between a charging circuit and the storage battery, and after the storage battery is fully charged, the connection between the storage battery and the charging circuit is disconnected, so that the overshoot of the storage battery is prevented.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a circuit diagram of a charging circuit according to the present invention;
fig. 3 is a circuit diagram of the medium voltage sampling circuit of the present invention;
fig. 4 is a circuit diagram of a charging protection circuit according to the present invention;
fig. 5 is a circuit diagram of the middle discharge protection circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.
Example 1
As shown in fig. 1-2, this embodiment provides an intelligent solar controller, which includes a control unit, a charging circuit, a voltage sampling circuit, and a charging protection circuit, wherein an input terminal of the charging circuit is connected to an output terminal of a photovoltaic panel, an output terminal of the charging circuit is connected to the charging protection circuit, an output terminal of the charging protection circuit is connected to a storage battery, an input terminal of the voltage sampling circuit is connected to an output terminal of the photovoltaic panel, an output terminal of the voltage sampling circuit is connected to the control unit, the control unit is connected to the charging circuit, the charging circuit includes a capacitor C1, a resistor R1 of a field-effect transistor Q1, an inductor L1, a diode D1, and a capacitor C2, a drain electrode of the field-effect transistor Q1 is connected to an anode of the output terminal of the photovoltaic panel, the grid of the field effect transistor Q1 is connected with the control unit, the grid of the field effect transistor Q1 is connected with the source electrode of the field effect transistor Q1 through the resistor R1, the source electrode of the field effect transistor Q1 is connected with the anode of the diode D1, the anode of the capacitor C1 is connected with the anode of the output end of the photovoltaic panel, the cathode of the capacitor C1 is connected with the cathode of the output end of the photovoltaic panel, the first end of the inductor L1 is connected with the anode of the diode D1, the second end of the inductor L1 is connected with the cathode of the output end of the photovoltaic panel, the cathode of the diode D1 is connected with the input end of the protection circuit, the anode of the capacitor C2 is connected with the cathode of the diode D1, and the cathode of the capacitor C2 is connected with the cathode of the output end of the photovoltaic panel.
Because the solar output characteristic is greatly influenced by the external environment, the output characteristic can also be greatly changed when the illumination intensity and the temperature are changed. Therefore, in order to fully convert the energy generated by solar energy, a voltage sampling circuit is connected in parallel between the photovoltaic panel output and the charging circuit, the maximum power point output by the photovoltaic panel is collected, the maximum power point output by the photovoltaic panel is within a certain voltage range, the range is set to be E1-E2, the output voltage of the photovoltaic panel is sent to the control unit through the voltage sampling circuit, when the output voltage reaches a certain point voltage E2 near the maximum power point, the control unit sends a PWM control signal to the grid electrode of the field-effect tube Q1, the field-effect tube Q1 is conducted, the photovoltaic panel and the capacitor C1 charge the storage battery at the same time, and the voltage output by the capacitor C1 and the photovoltaic panel is reduced after a period of time; when the output voltage is reduced to E1, the control unit stops sending PWM control signals to the grid electrode of the field-effect tube Q1, the field-effect tube Q1 is turned off, the photovoltaic panel only charges the capacitor C1 at the moment, energy is stored on the capacitor C1, the voltage of the capacitor C1 is increased at the moment, when the voltage of the capacitor C1 reaches E2, the field-effect tube Q1 is conducted again, and the storage battery is charged in a reciprocating mode. When the illumination is weak, the photovoltaic panel stores electric energy in the capacitor C1 at first, and then transfers the electric energy to the storage battery when the voltage of the capacitor reaches the maximum power point, so that the storage battery can be charged no matter how small the current of the photovoltaic panel is, the current in the photovoltaic panel is extracted to the maximum extent, and the solar energy is fully utilized.
In the process of charging the storage battery, in order to prevent the storage battery from overshooting, a charging protection circuit is added between a charging circuit and the storage battery, and after the storage battery is fully charged, the connection between the storage battery and the charging circuit is disconnected, so that the storage battery is prevented from overshooting.
As shown in fig. 3, in this embodiment, the voltage sampling circuit includes resistance R2, resistance R3, resistance R4, resistance R5, U1 is put to fortune, resistance R6, electric capacity C4, opto-coupler U2, opto-coupler U3, resistance R7 and resistance R8, the positive pole of photovoltaic board output is connected to resistance R2's first end, U1's homophase input end is put through resistance R3 connection fortune to resistance R2's second end, U1's negative pole is put through resistance R5 connection to fortune's inverting input end, resistance R4 connecting resistance R2's second end, the negative pole of photovoltaic board output is connected to resistance R4's second end, U1's inverting input end is put through electric capacity C4 connection fortune to fortune, U1's output passes through resistance R6 and connects opto-coupler U2's first input end, opto-coupler U3's first input end is connected to opto-coupler U2's first output end, 5V power is connected to opto-coupler U2's first output end, U2's second output end is connected to fortune's output U1's negative input end, U3's negative pole is connected to opto-coupler U3 output end through the opto-coupler U3, the opto-coupler U3 output end is connected to the opto-coupler U3's negative pole through the output end, the output end of second output end, the opto-coupler U3 is connected to the opto-coupler unit, the output end is connected to the output end, the output end of the opto-coupler U3, the output end is connected to the opto-coupler U3.
In this embodiment, the voltage sampling circuit is used for collecting the output voltage of the photovoltaic panel, in fig. 3, the resistor R2 and the capacitor C3 form a low-pass filter circuit, filter out high-frequency clutter signals in the output voltage of the photovoltaic panel, the filtered voltage signal is divided by the resistor R4 and then added to the non-inverting input terminal of the operational amplifier U1, the operational amplifier U1 forms a voltage comparison circuit, when the voltage of the output terminal of the photovoltaic panel is within the maximum power point, the operational amplifier U1 outputs a high level, the filtered voltage signal is added to the input terminal of the optical coupler U2 by the capacitor C4, the output terminal of the optical coupler U2 is used as a feedback and added to the inverting input terminal of the operational amplifier U1, at this time, the inverting input terminal voltage of the operational amplifier U1 is still smaller than the non-inverting input terminal voltage of the operational amplifier U1, therefore, the operational amplifier continuously outputs a high level, the input terminal of the optical coupler U2 is connected in series with the input terminal of the optical coupler U3, so that the optical coupler U3 is turned on, the output voltage of the U3 is sent to the control unit after passing through the resistor R7 and the voltage divider circuit receives the high level, the storage battery starts charging circuit, when the voltage of the output voltage of the voltage sampling circuit is lower than the voltage of the voltage sampling circuit, the output point, and the output of the output unit, and the output voltage of the voltage sampling circuit is lower than the maximum power output unit.
As shown in fig. 4, the charging protection circuit in this embodiment includes a voltage regulator D3, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a voltage regulator D4, an operational amplifier U4, a resistor R13, a resistor R14, a resistor R15, a transistor Q2, a resistor R16, a resistor R17, and a resistor R18, wherein a cathode of the voltage regulator D3 is connected to an output terminal of the charging circuit, an anode of the voltage regulator D3 is grounded through the resistor R9, a first end of the resistor R10 is connected to an output terminal of the charging circuit, a second end of the resistor R10 is connected to a cathode of the voltage regulator D4, an anode of the voltage regulator D4 is grounded, a non-inverting input terminal of the operational amplifier U4 is connected to a second end of the resistor R10 through the resistor R11, a non-inverting input terminal of the operational amplifier U4 is grounded through the resistor R12, an inverting input terminal of the operational amplifier U4 is grounded through the resistor R18, an output terminal of the operational amplifier U4 is connected to a base of the transistor Q2 through the resistor R13, a first end of the charging circuit is connected to an output terminal of the charging circuit, a collector of the battery is connected to an emitter of the transistor R17, and a collector of the battery is connected to an emitter of the battery.
In this embodiment, at the in-process to battery charging, detect battery power simultaneously, prevent that the battery from appearing the phenomenon of overshooting, overshoot the battery for a long time will seriously influence the life of battery.
The storage battery has a limit on the highest charging voltage, a voltage stabilizing branch is formed by a voltage stabilizing tube D3 and a resistor R9 to prevent the charging voltage from being overhigh, an operational amplifier U4 forms a voltage comparison circuit, the charging circuit is controlled to be switched on and switched off by the output level of the operational amplifier U4, a resistor R10 and the voltage stabilizing tube D4 also form a voltage stabilizing branch which provides a stable reference voltage for the non-inverting input end of the operational amplifier U4, the reference voltage is divided by the resistor R3 and the resistor R4 and then is added to the non-inverting input end of the operational amplifier U4, the storage battery voltage is divided by a resistor R17 and a resistor R18 and then is added to the inverting input end of the operational amplifier U4, when the charging voltage of the storage battery is lower than the set voltage upper limit, the operational amplifier U4 outputs a high level, the triode Q2, the charging voltage is sent to the positive electrode of the storage battery through the resistor R15, the triode Q2 and the resistor R16 to charge the storage battery, when the charging voltage of the storage battery reaches the set voltage upper limit, the inverting input end of the operational amplifier U4 is larger than the non-inverting input end of the operational amplifier U4, the non-inverting input end of the operational amplifier U4 outputs the level, and the charging voltage stops.
As shown in fig. 5, the power supply further includes a discharge protection circuit in this embodiment, the discharge protection circuit includes a voltage regulator tube D5, a resistor R19, a resistor R20, a resistor R21, a resistor R22, an operational amplifier U5, a resistor R23, a resistor R24, a triode Q3, a diode D6, a resistor R27, a diode D8 and a relay K1, a cathode of the voltage regulator tube D5 is connected to an anode of the storage battery, an anode of the voltage regulator tube D5 is grounded through the resistor R19, an inverting input end of the operational amplifier U5 is connected to an anode of the voltage regulator tube D5 through the resistor R20, a non-inverting input end of the operational amplifier U5 is connected to the anode of the storage battery through the resistor R22, a non-inverting input end of the operational amplifier U5 is grounded through the resistor R21, an output end of the operational amplifier U5 is connected to the anode of the storage battery through the resistor R23, an output end of the operational amplifier U5 is connected to a base of the triode Q3 through the resistor R24, an emitter of the triode Q3 is connected to the anode of the storage battery, a collector of the triode Q3 is connected to the anode of the diode D6, a cathode of the diode D6 is connected to the first input end of the relay K1 through the resistor R27, a cathode of the relay K1 is connected to the common input end of the relay K1, and a common terminal of the relay K1 is connected to the storage battery.
After the storage battery is charged, the storage battery can be used by an electric appliance, and the discharging process of the storage battery is stopped after the electric quantity of the storage battery is used up. The continuous discharge of the secondary battery after the secondary battery is discharged to the end voltage is called over-discharge, which can seriously damage the secondary battery and is very unfavorable for the electrical performance and the cycle life of the secondary battery. When the storage battery is overdischarged, the storage battery has a tendency of heating due to large internal resistance and expands in volume, and the storage battery is seriously damaged after a long time.
In the embodiment, the operational amplifier U5 forms a voltage comparison circuit, a branch where a voltage stabilizing tube D5 and a resistor R19 are located provides stable reference voltage for an inverting input end of the operational amplifier U5, meanwhile, the operational amplifier U5 and a triode Q3 form a driving circuit to control the suction state of a relay K1, and a storage battery provides power for a discharge protection circuit;
when the voltage of the storage battery is higher than the set termination voltage, the operational amplifier U5 outputs a high level, the triode Q3 is cut off, the relay K1 does not work, and the storage battery can be normally used by the electric appliance; when the voltage of the storage battery reaches or is lower than the set termination voltage, the operational amplifier U5 outputs a low level, the triode Q1 is conducted, the coil of the relay K1 is electrified, the contact of the relay K1 is disconnected with the normally closed end, the normally open end is connected, and the connection between the electric appliance and the storage battery is disconnected. Thereby playing the role of preventing the storage battery from over-discharging.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the present invention.
Claims (4)
1. The intelligent solar controller is characterized by comprising a control unit, a charging circuit, a voltage sampling circuit and a charging protection circuit, wherein the input end of the charging circuit is connected with the output end of a photovoltaic panel, the output end of the charging circuit is connected with the charging protection circuit, the output end of the charging protection circuit is connected with a storage battery, the input end of the voltage sampling circuit is connected with the output end of the photovoltaic panel, the output end of the voltage sampling circuit is connected with the control unit, the control unit is connected with the charging circuit, the charging circuit comprises a capacitor C1, a field-effect tube Q1 resistor R1, an inductor L1, a diode D1 and a capacitor C2, the drain electrode of the field-effect tube Q1 is connected with the anode of the output end of the photovoltaic panel, the utility model discloses a photovoltaic protection circuit, including field effect transistor Q1, diode D1, protection circuit, capacitor C1, resistor R1, control unit, field effect transistor Q1's grid passes through resistance R1 connects field effect transistor Q1's source electrode, field effect transistor Q1's source electrode is connected diode D1's positive pole, the positive pole of photovoltaic board output is connected to capacitor C1's positive pole, the negative pole of photovoltaic board output is connected to inductor L1's first end, the negative pole of inductor L1's second end connection photovoltaic board output, diode D1 negative pole is connected protection circuit's input, the positive pole of capacitor C2 is connected diode D1's negative pole, the negative pole of photovoltaic board output is connected to capacitor C2's negative pole.
2. The intelligent solar controller according to claim 1, wherein the voltage sampling circuit comprises a resistor R2, a resistor R3, a resistor R4, a resistor R5, an operational amplifier U1, a resistor R6, a capacitor C4, an optocoupler U2, an optocoupler U3, a resistor R7 and a resistor R8, wherein a first end of the resistor R2 is connected with an anode of a photovoltaic panel output end, a second end of the resistor R2 is connected with a non-inverting input end of the operational amplifier U1 through the resistor R3, an inverting input end of the operational amplifier U1 is connected with a cathode of the photovoltaic panel output end through the resistor R5, the resistor R4 is connected with a second end of the resistor R2, a second end of the resistor R4 is connected with a cathode of the photovoltaic panel output end, an output end of the operational amplifier U1 is connected with an inverting input end of the operational amplifier U1 through the capacitor C4, an output end of the operational amplifier U1 is connected with a first input end of the resistor R6, a second input end of the U2 is connected with a first input end of the optocoupler U3, a first input end of the optocoupler U2 is connected with a power supply, a first output end of the optocoupler U2 is connected with a power supply, a second end of the optocoupler U3 is connected with a second input end of the optocoupler V3, and a second end of the optocoupler U1 is connected with a negative terminal of the optocoupler V3, and a negative terminal of the optocoupler U3 is connected with a negative terminal of the optocoupler U3, and a negative terminal of the optocoupler unit of the optocoupler U8, and a negative terminal of the optocoupler U3 is connected with a negative terminal of the optocoupler U3, and a negative terminal of the optocoupler unit is connected with a negative terminal of the optocoupler U1, and a negative terminal of the optocoupler U3, and a negative terminal of the optocoupler U1, and a negative terminal of the optocoupler unit is connected with a negative terminal of the output terminal of the optocoupler unit of the optocoupler U3, and a negative terminal of the optocoupler U2 is connected with a negative terminal of the optocoupler U3, and a ground connection of the optocoupler unit of the optocoupler U8, and a ground connection of the optocoupler U3, and a ground connection of the optocoupler unit of the optocoupler U3, and a ground connection of the optocoupler unit is connected with a ground connection of the optocoupler unit of the optocoupler U3, and a ground connection of the optocoupler U1, and a second output terminal of the optocoupler U3, and a ground connection of the optocoupler unit of the optocoupler U3, and a second output terminal of the optocoupler U1 is connected with a second output terminal of the optocoupler U2, and a negative terminal of the optocoupler unit of the optocoupler U3 and a negative terminal of the optocoupler U1 and a negative terminal of the optocoupler U3.
3. The intelligent solar controller according to claim 1, wherein the charging protection circuit comprises a voltage regulator tube D3, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a voltage regulator tube D4, an operational amplifier U4, a resistor R13, a resistor R14, a resistor R15, a triode Q2, a resistor R16, a resistor R17 and a resistor R18, wherein a cathode of the voltage regulator tube D3 is connected with an output end of the charging circuit, an anode of the voltage regulator tube D3 is grounded through the resistor R9, a first end of the resistor R10 is connected with an output end of the charging circuit, a second end of the resistor R10 is connected with a cathode of the voltage regulator tube D4, an anode of the voltage regulator tube D4 is grounded, a non-inverting input end of the operational amplifier U4 is connected with a second end of the resistor R10 through the resistor R11, U4's homophase input is put to fortune passes through resistance R12 ground connection, U4's inverting input is put to fortune passes through resistance R18 ground connection, U4's output is put to fortune passes through resistance R13 connects triode Q2's base, resistance R14's first end is connected charging circuit's output, resistance R14's second end is connected U4's output is put to fortune, triode Q2's collecting electrode passes through resistance R15 connects charging circuit's output, triode Q2's projecting pole passes through resistance R16 connects resistance R17's first end, resistance R17's second end is connected U4's inverting input is put to fortune, the positive pole of battery is connected to resistance R17's first end, the negative pole ground connection of battery.
4. The intelligent solar controller according to claim 1, further comprising a discharge protection circuit, wherein the discharge protection circuit comprises a voltage regulator tube D5, a resistor R19, a resistor R20, a resistor R21, a resistor R22, an operational amplifier U5, a resistor R23, a resistor R24, a triode Q3, a diode D6, a resistor R27, a diode D8 and a relay K1, a cathode of the voltage regulator tube D5 is connected with an anode of the storage battery, an anode of the voltage regulator tube D5 is grounded through the resistor R19, an inverting input end of the operational amplifier U5 is connected with an anode of the voltage regulator tube D5 through the resistor R20, a non-inverting input end of the operational amplifier U5 is connected with an anode of the storage battery through the resistor R22, a non-inverting input end of the operational amplifier U5 is grounded through the resistor R21, an output end of the operational amplifier U5 is connected with an anode of the storage battery through the resistor R23, an output end of the operational amplifier U5 is connected with a base of the triode Q3 through the resistor R24, an anode of the storage battery Q3 is connected with an anode of the storage battery, an collector of the Q3 is connected with an anode of the relay K6, a cathode of the relay K6 is connected with a cathode of the common input end of the relay K1, and a cathode of the relay K1 is connected with a cathode of the diode of the relay K1, and a cathode of the relay K1 is connected with an anode of the relay K1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222063617.0U CN218335406U (en) | 2022-08-05 | 2022-08-05 | Intelligent solar controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222063617.0U CN218335406U (en) | 2022-08-05 | 2022-08-05 | Intelligent solar controller |
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| Publication Number | Publication Date |
|---|---|
| CN218335406U true CN218335406U (en) | 2023-01-17 |
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| CN202222063617.0U Active CN218335406U (en) | 2022-08-05 | 2022-08-05 | Intelligent solar controller |
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| CN (1) | CN218335406U (en) |
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2022
- 2022-08-05 CN CN202222063617.0U patent/CN218335406U/en active Active
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