CN111417234B - Multi-color temperature full-spectrum LED solar lamp illumination control system - Google Patents
Multi-color temperature full-spectrum LED solar lamp illumination control system Download PDFInfo
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- CN111417234B CN111417234B CN201911417929.3A CN201911417929A CN111417234B CN 111417234 B CN111417234 B CN 111417234B CN 201911417929 A CN201911417929 A CN 201911417929A CN 111417234 B CN111417234 B CN 111417234B
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention provides a multi-color temperature full-spectrum LED solar lamp illumination control system which comprises a solar cell panel, a solar voltage stabilizing circuit, a lithium battery, an environment detection module, a battery management chip, a mains supply circuit, a constant current circuit, a control protection circuit, a power supply conversion circuit, a lithium battery power supply switch circuit, a control chip and a multi-color temperature LED array, wherein the solar cell panel is connected with the solar voltage stabilizing circuit; according to the invention, the power supply can be carried out by adopting a mode of combining commercial power and solar energy, the whole power supply stability is good, the circuit structure is simpler compared with the prior art, and on the other hand, the illumination control can be carried out on the illumination of the street lamp according to the light of the environment and the change of the visibility, so that the illumination of the street lamp can meet the requirement of environment change, and the safety of road traffic and pedestrians can be ensured.
Description
Technical Field
The invention relates to an LED illumination control system, in particular to a multi-color temperature full-spectrum LED solar lamp illumination control system.
Background
Because the LED lamp has the advantages of energy conservation and long service life, the LED lamp is widely applied to street lamp illumination at present, in the existing street lamp illumination, the solar lamp is also one of LED illuminating lamps, a multicolor temperature full-spectrum LED array is arranged in the solar lamp, sunlight is simulated by the light emitting of the LED array, in the prior art, the solar lamp is generally powered by a single mains supply and a solar energy-mains supply, but the existing solar energy mains supply is combined with the power supply, so that the following defects exist: on the one hand, the whole circuit system that current solar energy commercial power combines the power supply is complicated, and stability can not obtain guaranteeing moreover, and on the other hand, current sun lamp illumination all adopts manual control, realizes opening and closing of sun lamp, and this kind of mode can not adapt to the demand of environment, and on the other hand, sun lamp has not opened yet when the reason of human factor leads to light not enough to there is the potential safety hazard.
Therefore, in order to solve the above technical problems, a new solution needs to be proposed.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a multi-color temperature full spectrum LED solar lamp illumination control system, which can use a combination of commercial power and solar energy to supply power, and has good stability of the whole power supply, and a circuit structure simpler than the prior art.
The invention provides a multi-color temperature full-spectrum LED solar lamp illumination control system which comprises a solar cell panel, a solar voltage stabilizing circuit, a lithium battery, an environment detection module, a battery management chip, a mains supply circuit, a constant current circuit, a control protection circuit, a power supply conversion circuit, a lithium battery power supply switch circuit, a control chip and a multi-color temperature LED array, wherein the solar cell panel is connected with the solar voltage stabilizing circuit;
the output end of the solar cell panel is connected with the input end of the solar voltage stabilizing circuit, the output end of the solar voltage stabilizing circuit is connected with the power input end of the battery management chip, the power supply output end of the battery management chip is connected with the input end of the lithium battery power supply switch circuit, the output end of the lithium battery power supply switch circuit is connected with the input end of the power conversion circuit, the battery management chip is used for managing the charging and discharging of the lithium battery and is in communication connection with the control chip, the environment detection module is used for detecting the environment brightness and visibility and outputting control information to the control chip, the constant current circuit is powered by the power supply conversion circuit and provides constant working current for the multi-color temperature LED array, the control end of the constant current circuit is connected with the control chip, and the control end of the control protection circuit is connected with the control chip.
Further, the solar voltage stabilizing circuit comprises a resistor R17, a resistor R18, a resistor R19, a triode Q7, a triode Q8, a triode Q10, a triode Q9, a voltage regulator tube D6, a voltage regulator tube D7, a voltage regulator tube D8 and a capacitor C9;
the collector of the triode Q10 is connected with the cathode of a voltage regulator tube D6 through a resistor R17, the anode of a voltage regulator tube D6 is grounded, the common connection point of the collector of the triode Q10 and a resistor R17 is used as the input end of a solar voltage regulator circuit to be connected with a solar battery, the cathode of the voltage regulator tube D6 is connected with the base of a triode Q7, the emitter of the triode Q7 is connected with the collector of a triode Q10 through a resistor R18, the collector of the triode Q7 is connected with the cathode of a voltage regulator tube D7, the anode of the voltage regulator tube D7 is grounded, the cathode of the voltage regulator tube D7 is connected with the base of a triode Q8, the collector of a triode Q8 is connected with the collector of a triode Q10 through a resistor R19, the emitter of the triode Q8 is connected with the base of a triode Q9, the collector of a triode Q9 is connected with the emitter of a triode Q9 and connected with the base of a triode Q10, the base of a triode Q10 is connected with the cathode of a voltage regulator tube D8, the anode of the voltage regulator tube D8 is grounded, the emitter of the triode Q10 is grounded through the capacitor C9, and the common connection point of the triode Q10 and the capacitor C9 serves as the output end of the solar voltage stabilizing circuit.
Further, the control protection circuit comprises a resistor R13, a triode Q3, a PMOS tube Q4, an NMOS tube Q5, a resistor R16, a diode D6, an inductor L2, a voltage regulator tube D4, a resistor R14, a resistor R15, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C8, a capacitor C7, a voltage regulator tube D2, a voltage regulator tube D3, a triode Q6, a comparator U2 and a comparator U3;
the source of a PMOS tube Q4 is used as the power input end of the control protection circuit and is connected with the output end of the online power taking circuit, the source of a PMOS tube Q4 is connected with the grid of a PMOS tube Q4 through a resistor R13, the grid of the PMOS tube Q4 is connected with the collector of a triode Q3, the emitter of the triode Q3 is grounded, the drain of the PMOS tube Q4 is connected with the drain of an NMOS tube Q5, the source of the NMOS tube Q5 is grounded, the drain of the PMOS tube Q4 is connected with the anode of a diode D6 through a resistor R16, and the cathode of the diode D6 is used as the power output end of the control protection circuit;
the inductor L2 is connected between the drain of the PMOS tube Q4 and the resistor R16 in series, the negative electrode of the voltage regulator tube D4 is connected to the common connection point between the inductor L2 and the drain of the PMOS tube Q4, the positive electrode of the voltage regulator tube D4 is grounded through the resistor R14, the positive electrode of the voltage regulator tube D4 is connected with one end of the resistor R14, and the other end of the resistor R14 is connected to the grid of the NMOS tube Q5;
one end of a resistor R8 is connected with the output end of the on-line power-taking circuit, the other end of the resistor R8 is grounded after being connected in series with a resistor R9 and a resistor R10, a common connection point between the resistor R8 and the resistor R9 is grounded through a capacitor C8, a common connection point between the resistor R8 and the resistor R9 is connected with the negative electrode of a voltage regulator tube D3, the positive electrode of the voltage regulator tube D3 is grounded, a common connection point between the resistor R10 and the resistor R9 is grounded through a capacitor C7, a common connection point between the resistor R10 and the resistor R9 is connected with the negative electrode of a voltage regulator tube D2, and the positive electrode of the voltage regulator tube D2 is grounded;
one end of a resistor R11 is connected with an output end of the on-line power-taking circuit, the other end of the resistor R11 is grounded through a resistor R12, a common connection point between the resistor R11 and the resistor R12 is respectively connected with a same-phase end of a comparator U2 and an inverted-phase end of a comparator U3, an inverted-phase end of the comparator U2 is connected with a common connection point between the resistor R8 and the resistor R9, a same-phase end of the comparator U3 is connected with a common connection point between a resistor R10 and the resistor R9, output ends of the comparator U2 and the comparator U3 are connected with an input end of an AND gate circuit AD1, an output end of the AND gate circuit AD1 is connected with a base of a triode Q3, an emitter of a triode Q6 is connected with a gate of a PMOS tube Q4, a collector of the triode Q6 is connected with a source of a PMOS tube Q4, and a base of the triode Q6 is used as a control end of the control protection circuit.
Further, the commercial power supply circuit comprises a transformer T1, a rectifier circuit REC, a capacitor C5, a capacitor C6, a resistor R7 and an operational amplifier U1;
the primary winding of the transformer T1 is connected with a mains supply, the secondary winding of the transformer T1 is connected with the input end of a rectifier circuit REC, the positive output end of the rectifier circuit REC is grounded through a capacitor C5, the negative output end of the rectifier circuit REC is grounded, the common connection point between the positive output end of the rectifier circuit REC and the capacitor C5 is connected with the in-phase end of an operational amplifier U1 through a resistor R7, the in-phase end of the operational amplifier U1 is grounded through a capacitor C6, the inverting end of the operational amplifier U1 is connected with the output end of an operational amplifier U1, and the output end of the operational amplifier U1 serves as the output end of the mains supply circuit.
Further, the lithium battery power supply switch circuit comprises a resistor R4, a resistor R5, a resistor R6, a triode Q1 and a triode Q2;
the emitting electrode of the triode Q2 is connected with the power supply output end of the battery management chip through a resistor R5, the collecting electrode of the triode Q2 serves as the output end of the lithium battery power supply switching circuit, the base electrode of the triode Q2 is connected with the power supply output end of the battery management chip through a resistor R4, the base electrode of the triode Q2 is connected with the collecting electrode of the triode Q1, the emitting electrode of the triode Q1 is grounded through a resistor R6, and the base electrode of the triode Q1 is connected with the control chip.
Further, the power conversion circuit comprises a 12V voltage circuit, a 5V voltage circuit and a 3.3V voltage circuit, wherein the input end of the 12V voltage circuit is connected with the output end of the control protection circuit, the output end of the 12V voltage circuit is connected with the input end of the 5V voltage circuit, the input end of the 5V voltage circuit is also connected with the output end of the lithium battery power supply switch circuit, the output end of the 5V voltage circuit is connected with the input end of the 3.3V voltage circuit, the 12V voltage is used for supplying power to the constant current circuit, the 5V voltage is used for supplying working power to the detection module and the RS465 communication circuit, and the 3.3V voltage is used for supplying working power to the controller.
Further, the constant current circuit comprises a resistor R1, an operational amplifier U4, an operational amplifier U5, an operational amplifier U6, a resistor R2, a resistor R3, a capacitor C1 and a digital potentiometer RT 1;
one end of the resistor R1 is used as an input end of a constant current circuit, the other end of the resistor R1 is connected with the in-phase end of the operational amplifier U4, the output end of the operational amplifier U4 is connected with the input end of the digital potentiometer RT1, the output end of the digital potentiometer RT1 is used as the output end of the constant current circuit to supply power to the LED array, the in-phase end of the operational amplifier U6 is connected with the output end of the digital potentiometer RT1, the inverting end of the operational amplifier U6 is connected with the output end of the operational amplifier U6, the output end of the operational amplifier U6 is connected with the inverting end of the operational amplifier U5 through the resistor R3, the inverting end of the operational amplifier U5 is connected with the output end of the operational amplifier U5 after being connected in parallel with the resistor R2 and the capacitor C1, the output end of the operational amplifier U5 is connected with the inverting end of the operational amplifier U4, the in-phase end of the operational amplifier U5 is connected with the output end of the operational amplifier U4, and the control end of the digital potentiometer RT1 is used as the control end of the constant current circuit.
Further, the environment detection module comprises a visibility sensor and a light intensity sensor, and the output ends of the visibility sensor and the light intensity sensor are connected with the information input end of the controller.
The invention has the beneficial effects that: according to the invention, the power supply can be carried out by adopting a mode of combining commercial power and solar energy, the whole power supply stability is good, the circuit structure is simpler compared with the prior art, and on the other hand, the illumination control can be carried out on the illumination of the street lamp according to the light of the environment and the change of the visibility, so that the illumination of the street lamp can meet the requirement of environment change, and the safety of road traffic and pedestrians can be ensured.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic diagram of a solar voltage regulator circuit according to the present invention.
Fig. 3 is a schematic diagram of a mains supply circuit and a control protection circuit according to the present invention.
Fig. 4 is a schematic diagram of a lithium battery power supply switch circuit of the present invention.
Fig. 5 is a schematic diagram of a constant current circuit of the present invention.
FIG. 6 is a schematic diagram of the 12V voltage circuit of the present invention.
FIG. 7 is a schematic diagram of a 5V voltage circuit of the present invention.
FIG. 8 is a schematic diagram of a 3.3V voltage circuit of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings of the specification:
the invention provides a multi-color temperature full-spectrum LED solar lamp illumination control system which comprises a solar cell panel, a solar voltage stabilizing circuit, a lithium battery, an environment detection module, a battery management chip, a mains supply circuit, a constant current circuit, a control protection circuit, a power supply conversion circuit, a lithium battery power supply switch circuit, a control chip and a multi-color temperature LED array, wherein the solar cell panel is connected with the solar voltage stabilizing circuit;
the output end of the solar cell panel is connected with the input end of the solar voltage stabilizing circuit, the output end of the solar voltage stabilizing circuit is connected with the power input end of the battery management chip, the power supply output end of the battery management chip is connected with the input end of the lithium battery power supply switch circuit, the output end of the lithium battery power supply switch circuit is connected with the input end of the power conversion circuit, the battery management chip is used for managing the charging and discharging of the lithium battery and is in communication connection with the control chip, the environment detection module is used for detecting the environment brightness and visibility and outputting control information to the control chip, the constant current circuit is powered by the power supply conversion circuit and provides constant working current for the multi-color temperature LED array, the control end of the constant current circuit is connected with the control chip, and the control end of the control protection circuit is connected with the control chip; according to the invention, the power supply can be carried out by adopting a mode of combining commercial power and solar energy, the whole power supply stability is good, the circuit structure is simpler compared with the prior art, and on the other hand, the illumination control can be carried out on the illumination of the street lamp according to the light of the environment and the change of the visibility, so that the illumination of the street lamp can meet the requirement of environment change, and the safety of road traffic and pedestrians can be ensured.
In this embodiment, the solar voltage stabilizing circuit includes a resistor R17, a resistor R18, a resistor R19, a transistor Q7, a transistor Q8, a transistor Q10, a transistor Q9, a voltage regulator tube D6, a voltage regulator tube D7, a voltage regulator tube D8, and a capacitor C9;
the collector of the triode Q10 is connected with the cathode of a voltage regulator tube D6 through a resistor R17, the anode of a voltage regulator tube D6 is grounded, the common connection point of the collector of the triode Q10 and a resistor R17 is used as the input end of a solar voltage regulator circuit to be connected with a solar battery, the cathode of the voltage regulator tube D6 is connected with the base of a triode Q7, the emitter of the triode Q7 is connected with the collector of a triode Q10 through a resistor R18, the collector of the triode Q7 is connected with the cathode of a voltage regulator tube D7, the anode of the voltage regulator tube D7 is grounded, the cathode of the voltage regulator tube D7 is connected with the base of a triode Q8, the collector of a triode Q8 is connected with the collector of a triode Q10 through a resistor R19, the emitter of the triode Q8 is connected with the base of a triode Q9, the collector of a triode Q9 is connected with the emitter of a triode Q9 and connected with the base of a triode Q10, the base of a triode Q10 is connected with the cathode of a voltage regulator tube D8, the positive electrode of the voltage regulator tube D8 is grounded, the emitter of the triode Q10 is grounded through the capacitor C9, the common connection point of the triode Q10 and the capacitor C9 serves as the output end of the solar voltage stabilizing circuit, and the stability of the solar voltage stabilizing circuit is high through the structure.
In this embodiment, the control protection circuit includes a resistor R13, a triode Q3, a PMOS transistor Q4, an NMOS transistor Q5, a resistor R16, a diode D6, an inductor L2, a voltage regulator tube D4, a resistor R14, a resistor R15, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C8, a capacitor C7, a voltage regulator tube D2, a voltage regulator tube D3, a triode Q6, a comparator U2, and a comparator U3;
the source of a PMOS tube Q4 is used as the power input end of the control protection circuit and is connected with the output end of the online power taking circuit, the source of a PMOS tube Q4 is connected with the grid of a PMOS tube Q4 through a resistor R13, the grid of the PMOS tube Q4 is connected with the collector of a triode Q3, the emitter of the triode Q3 is grounded, the drain of the PMOS tube Q4 is connected with the drain of an NMOS tube Q5, the source of the NMOS tube Q5 is grounded, the drain of the PMOS tube Q4 is connected with the anode of a diode D6 through a resistor R16, and the cathode of the diode D6 is used as the power output end of the control protection circuit;
the inductor L2 is connected between the drain of the PMOS tube Q4 and the resistor R16 in series, the negative electrode of the voltage regulator tube D4 is connected to the common connection point between the inductor L2 and the drain of the PMOS tube Q4, the positive electrode of the voltage regulator tube D4 is grounded through the resistor R14, the positive electrode of the voltage regulator tube D4 is connected with one end of the resistor R14, and the other end of the resistor R14 is connected to the grid of the NMOS tube Q5;
one end of a resistor R8 is connected with the output end of the on-line power-taking circuit, the other end of the resistor R8 is grounded after being connected in series with a resistor R9 and a resistor R10, a common connection point between the resistor R8 and the resistor R9 is grounded through a capacitor C8, a common connection point between the resistor R8 and the resistor R9 is connected with the negative electrode of a voltage regulator tube D3, the positive electrode of the voltage regulator tube D3 is grounded, a common connection point between the resistor R10 and the resistor R9 is grounded through a capacitor C7, a common connection point between the resistor R10 and the resistor R9 is connected with the negative electrode of a voltage regulator tube D2, and the positive electrode of the voltage regulator tube D2 is grounded;
one end of a resistor R11 is connected with an output end of the on-line power-taking circuit, the other end of the resistor R11 is grounded through a resistor R12, a common connection point between the resistor R11 and the resistor R12 is respectively connected with a same-phase end of a comparator U2 and an inverted-phase end of a comparator U3, an inverted-phase end of the comparator U2 is connected with a common connection point between the resistor R8 and the resistor R9, a same-phase end of the comparator U3 is connected with a common connection point between a resistor R10 and the resistor R9, output ends of the comparator U2 and the comparator U3 are connected with an input end of an AND gate circuit AD1, an output end of the AND gate circuit AD1 is connected with a base of a triode Q3, an emitter of a triode Q6 is connected with a gate of a PMOS tube Q4, a collector of the triode Q6 is connected with a source of a PMOS tube Q4, and a base of the triode Q6 is used as a control end of the control protection circuit. Wherein:
comparator U2 is used to judge whether overvoltage occurs, comparator U3 is used to judge whether undervoltage occurs, when the voltage is not overvoltage or undervoltage, comparator U2 and comparator U3 both output low level, at this time AND gate circuit AD1 outputs high level, triode Q3 is conducted, thereby pulling down the gate voltage of PMOS transistor Q4, PMOS transistor Q4 is conducted, at this time NMOS transistor Q5 is cut off, the switch circuit has output, when overvoltage occurs or undervoltage, comparator U2 or comparator U3 outputs high level, at this time AND gate circuit AD1 outputs low level, triode Q3 is cut off, the gate-source voltage of PMOS transistor Q4 is equal, PMOS transistor Q4 is cut off, output is stopped, when the current is increased and increased, the left end of inductor L2 induces high voltage, stabilivolt D4 is conducted, thereby NMOS transistor Q5 is conducted, the subsequent circuit is short-circuited, thereby current transient protection is performed, the impact of transient current is eliminated, and NMOS transistor Q5 is conducted, the induced voltage of the inductor L2 disappears, the NMOS tube Q5 is cut off again, the inductor L2 can continue to get power, the inductor L2 has the function of current delay, at the moment, the current obtained by a subsequent circuit is still small, at the moment, if the current is still overlarge, due to the voltage division effect of the resistor R11 and the resistor R12, the overvoltage and undervoltage detection circuit participates in detection, so that the PMOS tube Q4 is controlled to be cut off according to the control logic of the PMOS tube Q4, protection is realized, although the current is increased, the voltage division of the resistors R8, R9 and R10 is increased, due to the current, the voltage division of the resistor R8, the resistor R9 and the resistor R10 is also increased in proportion, the reference voltage provided by the resistor R6326 and the resistor R10 is also increased in proportion, but the voltage clamping effect of the voltage regulator tube D3 and the voltage regulator tube D2 is used for restraining the reference voltage within a safety range, so that overvoltage detection control is realized, and good protection is further realized for the subsequent circuit, thereby improving the stability of the entire system.
In this embodiment, the commercial power supply circuit includes a transformer T1, a rectifier circuit REC, a capacitor C5, a capacitor C6, a resistor R7, and an operational amplifier U1;
the primary winding of the transformer T1 is connected with a mains supply, the secondary winding of the transformer T1 is connected with the input end of a rectifier circuit REC, the positive output end of the rectifier circuit REC is grounded through a capacitor C5, the negative output end of the rectifier circuit REC is grounded, the common connection point between the positive output end of the rectifier circuit REC and the capacitor C5 is connected with the in-phase end of an operational amplifier U1 through a resistor R7, the in-phase end of the operational amplifier U1 is grounded through a capacitor C6, the inverting end of the operational amplifier U1 is connected with the output end of an operational amplifier U1, and the output end of the operational amplifier U1 serves as the output end of a mains supply circuit; the transformer T1 is used for reducing voltage of a mains supply, the rectifier circuit REC is a full-bridge rectifier circuit composed of diodes and used for rectifying alternating current into direct current, the capacitor C5, the capacitor C6 and the resistor R7 form a filter circuit, the resistor R7 is also used for limiting current and dividing voltage, the operational amplifier U1 forms a voltage follower used for stabilizing voltage, and isolation is formed by utilizing the high input impedance characteristic of the operational amplifier, so that the stability of a subsequent electric device is facilitated.
In this embodiment, the lithium battery power supply switch circuit includes a resistor R4, a resistor R5, a resistor R6, a transistor Q1, and a transistor Q2;
the emitting electrode of triode Q2 passes through resistance R5 and is connected with the power supply output terminal of battery management chip, the collecting electrode of triode Q2 is as lithium cell power supply switch circuit's output, the base of triode Q2 is connected with the power supply output terminal of battery management chip through resistance R4, the base of triode Q2 is connected with triode Q1's collecting electrode, the emitting electrode of triode Q1 passes through resistance R6 ground connection, the base of triode Q1 is connected with control chip, through above-mentioned circuit, the break-make of the power supply output of control lithium cell that can be good.
In this embodiment, the power conversion circuit includes a 12V voltage circuit, a 5V voltage circuit, and a 3.3V voltage circuit, the input end of the 12V voltage circuit is connected with the output end of the control protection circuit, the output end of the 12V voltage circuit is connected with the input end of the 5V voltage circuit, the input end of the 5V voltage circuit is also connected with the output end of the lithium battery power supply switch circuit, the output end of the 5V voltage circuit is connected with the input end of the 3.3V voltage circuit, the 12V voltage is used for supplying power to the constant current circuit, the 5V voltage is used for providing working electricity for the detection module and the RS465 communication circuit, the 3.3V voltage is used for providing working electricity for the controller, the voltage control circuit comprises a 12V voltage circuit, a 5V voltage circuit and a 3.3V voltage circuit, wherein the 12V voltage circuit adopts an LM7812 voltage chip, the 5V voltage circuit adopts an LM2596 voltage chip, and the 3.3V voltage circuit adopts an SGM2202-3.3 voltage chip.
In this embodiment, the constant current circuit includes a resistor R1, an operational amplifier U4, an operational amplifier U5, an operational amplifier U6, a resistor R2, a resistor R3, a capacitor C1, and a digital potentiometer RT 1;
one end of the resistor R1 is used as an input end of a constant current circuit, the other end of the resistor R1 is connected with a non-inverting end of the operational amplifier U4, an output end of the operational amplifier U4 is connected with an input end of a digital potentiometer RT1, an output end of the digital potentiometer RT1 is used as an output end of the constant current circuit to supply power to the LED array, the non-inverting end of the operational amplifier U6 is connected with an output end of a digital potentiometer RT1, an inverting end of the operational amplifier U6 is connected with an output end of the operational amplifier U6, the output end of the operational amplifier U6 is connected with the inverting end of the operational amplifier U5 through a resistor R3, the inverting end of the operational amplifier U5 is connected with an output end of the operational amplifier U5 after being connected in parallel with a resistor R2 and a capacitor C1, the output end of the operational amplifier U5 is connected with the inverting end of the operational amplifier U4, the non-inverting end of the operational amplifier U5 is connected with the non-inverting end of the operational amplifier U4, a control end of the digital potentiometer RT1 is used as a control end of the constant current control circuit, wherein the current control chip 1, thereby controlling the brightness of the multi-color temperature full-spectrum LED array.
In this embodiment, the environment detection module includes a visibility sensor and a light intensity sensor, and the output ends of the visibility sensor and the light intensity sensor are connected with the information input end of the controller. The control chip is an STM32F030K6T6 chip; the visibility sensor adopts a GA1AS100WP sensor of Shenzhen Dongbao company, the light intensity sensor adopts a TLS2561 sensor, and the lithium battery management chip is an MP2636 chip.
The principles of the present invention are further illustrated below:
the solar lamp can also be a multi-color-temperature full-spectrum LED array, the LED array emits light to simulate sunlight, namely, the color temperature of the solar lamp is close to that of solar energy, when the visibility is low and/or when the brightness cannot meet the lighting requirement, the power is supplied to the solar lamp by the control chip in a mode that the triode Q1 is controlled to be conducted or the Q6 is controlled to be cut off and the Q1 is cut off, then the brightness of the solar lamp is adjusted by the control chip through adjusting the resistance value of the digital potentiometer RT1, and the power supply is controlled by the following steps: the control chip obtains the electric quantity state of lithium cell through the battery management chip, when the electric quantity of lithium cell is sufficient, supply power the illumination by the lithium cell, triode Q1 switches on, triode Q6 switches on, if the electric quantity of lithium cell is not sufficient control triode Q6 stops earlier, then control triode Q1 also ends, whether the electric quantity of lithium cell is sufficient judges the work that can satisfy control chip and battery management chip for the electric quantity of current lithium cell, but can not satisfy the demand of illumination and detection module.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The utility model provides a polychrome temperature full spectrum LED sun lamp lighting control system which characterized in that: the method comprises the following steps: the system comprises a solar cell panel, a solar voltage stabilizing circuit, a lithium battery, an environment detection module, a battery management chip, a mains supply circuit, a constant current circuit, a control protection circuit, a power conversion circuit, a lithium battery power supply switch circuit, a control chip and a multi-color temperature full-spectrum LED array;
the output end of the solar cell panel is connected with the input end of the solar voltage stabilizing circuit, the output end of the solar voltage stabilizing circuit is connected with the power input end of the battery management chip, the power supply output end of the battery management chip is connected with the input end of the lithium battery power supply switch circuit, the output end of the lithium battery power supply switch circuit is connected with the input end of the power conversion circuit, the battery management chip is used for managing the charging and discharging of the lithium battery and is in communication connection with the control chip, the environment detection module is used for detecting the environment brightness and visibility and outputting control information to the control chip, the constant current circuit is powered by the power supply conversion circuit and provides constant working current for the multi-color temperature LED array, the control end of the constant current circuit is connected with the control chip, and the control end of the control protection circuit is connected with the control chip;
the solar voltage stabilizing circuit comprises a resistor R17, a resistor R18, a resistor R19, a triode Q7, a triode Q8, a triode Q10, a triode Q9, a voltage regulator tube D6, a voltage regulator tube D7, a voltage regulator tube D8 and a capacitor C9;
the collector of a triode Q10 is connected with the cathode of a voltage regulator tube D6 through a resistor R17, the anode of a voltage regulator tube D6 is grounded, the common connection point of the collector of a triode Q10 and a resistor R17 is used as the input end of a solar voltage regulator circuit to be connected with a solar battery, the cathode of the voltage regulator tube D6 is connected with the base of a triode Q7, the emitter of a triode Q7 is connected with the collector of a triode Q10 through a resistor R18, the collector of a triode Q7 is connected with the cathode of a voltage regulator tube D7, the anode of a voltage regulator tube D7 is grounded, the cathode of a voltage regulator tube D7 is connected with the base of a triode Q8, the collector of a triode Q8 is connected with the collector of a triode Q10 through a resistor R19, the emitter of a triode Q8 is connected with the base of a triode Q9, the emitter of a triode Q9 is connected with the base of a triode Q10, the base of a triode Q10 is connected with the cathode of a voltage regulator tube D8, the anode of a voltage regulator tube D8 is grounded, the emitter of the triode Q10 is grounded through a capacitor C9, and the common connection point of the triode Q10 and the capacitor C9 is used as the output end of the solar voltage stabilizing circuit;
the control protection circuit comprises a resistor R13, a triode Q3, a PMOS tube Q4, an NMOS tube Q5, a resistor R16, a diode D6, an inductor L2, a voltage regulator tube D4, a resistor R14, a resistor R15, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a capacitor C8, a capacitor C7, a voltage regulator tube D2, a voltage regulator tube D3, a triode Q6, a comparator U2 and a comparator U3;
the source of a PMOS tube Q4 is used as the power input end of the control protection circuit and is connected with the output end of the online power taking circuit, the source of a PMOS tube Q4 is connected with the grid of a PMOS tube Q4 through a resistor R13, the grid of the PMOS tube Q4 is connected with the collector of a triode Q3, the emitter of the triode Q3 is grounded, the drain of the PMOS tube Q4 is connected with the drain of an NMOS tube Q5, the source of the NMOS tube Q5 is grounded, the drain of the PMOS tube Q4 is connected with the anode of a diode D6 through a resistor R16, and the cathode of the diode D6 is used as the power output end of the control protection circuit;
the inductor L2 is connected between the drain of the PMOS tube Q4 and the resistor R16 in series, the negative electrode of the voltage regulator tube D4 is connected to the common connection point between the inductor L2 and the drain of the PMOS tube Q4, the positive electrode of the voltage regulator tube D4 is grounded through the resistor R14, the positive electrode of the voltage regulator tube D4 is connected with one end of the resistor R14, and the other end of the resistor R14 is connected to the grid of the NMOS tube Q5;
one end of a resistor R8 is connected with the output end of the on-line power-taking circuit, the other end of the resistor R8 is grounded after being connected in series with a resistor R9 and a resistor R10, a common connection point between the resistor R8 and the resistor R9 is grounded through a capacitor C8, a common connection point between the resistor R8 and the resistor R9 is connected with the negative electrode of a voltage regulator tube D3, the positive electrode of the voltage regulator tube D3 is grounded, a common connection point between the resistor R10 and the resistor R9 is grounded through a capacitor C7, a common connection point between the resistor R10 and the resistor R9 is connected with the negative electrode of a voltage regulator tube D2, and the positive electrode of the voltage regulator tube D2 is grounded;
one end of a resistor R11 is connected with an output end of the on-line power-taking circuit, the other end of the resistor R11 is grounded through a resistor R12, a common connection point between the resistor R11 and the resistor R12 is respectively connected with a same-phase end of a comparator U2 and an inverted-phase end of a comparator U3, an inverted-phase end of the comparator U2 is connected with a common connection point between the resistor R8 and the resistor R9, a same-phase end of the comparator U3 is connected with a common connection point between a resistor R10 and the resistor R9, output ends of the comparator U2 and the comparator U3 are connected with an input end of an AND gate circuit AD1, an output end of the AND gate circuit AD1 is connected with a base of a triode Q3, an emitter of a triode Q6 is connected with a gate of a PMOS tube Q4, a collector of the triode Q6 is connected with a source of a PMOS tube Q4, and a base of the triode Q6 is used as a control end of the control protection circuit.
2. The multi-color temperature full spectrum LED sun lighting control system of claim 1, wherein: the commercial power supply circuit comprises a transformer T1, a rectifying circuit REC, a capacitor C5, a capacitor C6, a resistor R7 and an operational amplifier U1;
the primary winding of the transformer T1 is connected with a mains supply, the secondary winding of the transformer T1 is connected with the input end of a rectifier circuit REC, the positive output end of the rectifier circuit REC is grounded through a capacitor C5, the negative output end of the rectifier circuit REC is grounded, the common connection point between the positive output end of the rectifier circuit REC and the capacitor C5 is connected with the in-phase end of an operational amplifier U1 through a resistor R7, the in-phase end of the operational amplifier U1 is grounded through a capacitor C6, the inverting end of the operational amplifier U1 is connected with the output end of an operational amplifier U1, and the output end of the operational amplifier U1 serves as the output end of the mains supply circuit.
3. The multi-color temperature full spectrum LED sun lighting control system of claim 2, wherein: the lithium battery power supply switch circuit comprises a resistor R4, a resistor R5, a resistor R6, a triode Q1 and a triode Q2;
the emitting electrode of the triode Q2 is connected with the power supply output end of the battery management chip through a resistor R5, the collecting electrode of the triode Q2 serves as the output end of the lithium battery power supply switching circuit, the base electrode of the triode Q2 is connected with the power supply output end of the battery management chip through a resistor R4, the base electrode of the triode Q2 is connected with the collecting electrode of the triode Q1, the emitting electrode of the triode Q1 is grounded through a resistor R6, and the base electrode of the triode Q1 is connected with the control chip.
4. The multi-color temperature full spectrum LED sun lighting control system of claim 3, wherein: the power supply conversion circuit comprises a 12V voltage circuit, a 5V voltage circuit and a 3.3V voltage circuit, wherein the input end of the 12V voltage circuit is connected with the output end of the control protection circuit, the output end of the 12V voltage circuit is connected with the input end of the 5V voltage circuit, the input end of the 5V voltage circuit is also connected with the output end of the lithium battery power supply switch circuit, the output end of the 5V voltage circuit is connected with the input end of the 3.3V voltage circuit, the 12V voltage is used for supplying power to the constant current circuit, the 5V voltage is used for supplying working power to the detection module and the RS465 communication circuit, and the 3.3V voltage is used for supplying working power to the controller.
5. The multi-color temperature full spectrum LED sun lighting control system of claim 4, wherein: the constant current circuit comprises a resistor R1, an operational amplifier U4, an operational amplifier U5, an operational amplifier U6, a resistor R2, a resistor R3, a capacitor C1 and a digital potentiometer RT 1;
one end of the resistor R1 is used as an input end of a constant current circuit, the other end of the resistor R1 is connected with the in-phase end of the operational amplifier U4, the output end of the operational amplifier U4 is connected with the input end of the digital potentiometer RT1, the output end of the digital potentiometer RT1 is used as the output end of the constant current circuit to supply power to the LED array, the in-phase end of the operational amplifier U6 is connected with the output end of the digital potentiometer RT1, the inverting end of the operational amplifier U6 is connected with the output end of the operational amplifier U6, the output end of the operational amplifier U6 is connected with the inverting end of the operational amplifier U5 through the resistor R3, the inverting end of the operational amplifier U5 is connected with the output end of the operational amplifier U5 after being connected in parallel with the resistor R2 and the capacitor C1, the output end of the operational amplifier U5 is connected with the inverting end of the operational amplifier U4, the in-phase end of the operational amplifier U5 is connected with the output end of the operational amplifier U4, and the control end of the digital potentiometer RT1 is used as the control end of the constant current circuit.
6. The multi-color temperature full spectrum LED sun lighting control system of claim 5, wherein: the environment detection module comprises a visibility sensor and a light intensity sensor, and the output ends of the visibility sensor and the light intensity sensor are connected with the information input end of the controller.
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| CN109714856B (en) * | 2018-12-27 | 2021-02-02 | 重庆绿色科技开发（集团）有限公司 | Intelligent control system of three-primary-color multi-color-temperature LED street lamp based on environment detection |
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| RS55270B1 (en) * | 2009-11-13 | 2017-02-28 | Novomatic Ag | Electronic game and/or entertainment device with a light effect device |
| CN203690983U (en) * | 2013-12-15 | 2014-07-02 | 重庆辉腾光电有限公司 | Highly effective solar traffic light |
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