CN216873430U - Eye adjustment training lamp - Google Patents
Eye adjustment training lamp Download PDFInfo
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- CN216873430U CN216873430U CN202220014550.9U CN202220014550U CN216873430U CN 216873430 U CN216873430 U CN 216873430U CN 202220014550 U CN202220014550 U CN 202220014550U CN 216873430 U CN216873430 U CN 216873430U
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Abstract
The utility model discloses an eye regulation training lamp, which comprises a lamp main body and a control panel arranged in the lamp main body, wherein the control panel is connected into a 12V power adapter, and a power filter, a circuit protection unit, a voltage stabilizing circuit unit, a microcontroller unit and at least one group of LED constant current driving circuit units are respectively arranged on the control panel. The input ends of the power filter and the circuit protection unit are connected to the power adapter and are used for filtering electromagnetic interference signals and preventing overhigh voltage so as to avoid burning off a post-stage circuit; the input end of the voltage stabilizing circuit unit is connected to the output ends of the power filter and the circuit protection unit, and suitable and stable voltage is provided for supplying power to the circuit system; the microcontroller unit is used for controlling the operation of the whole circuit system, and the power supply input end of the microcontroller unit is connected with the output circuit of the voltage stabilizing circuit unit. The eye regulation training lamp provided by the utility model optimizes the light-emitting effect of the eye regulation training lamp, and simulates outdoor natural light to realize a dynamic light source, thereby achieving the eye-care function.
Description
Technical Field
The utility model relates to a lamp, in particular to an eye adjustment training lamp.
Background
How to effectively prevent and cure myopia and protect the eyesight of teenagers is a big problem which needs to be solved urgently at present. Therefore, a vision training lamp needs to be provided, and the reading and writing eye-care desk lamp is used for performing eye function training by intelligently controlling and adjusting dynamic changes of light. Compared with an indoor static light source, an outdoor natural light source has dynamic light change, and the dynamic light change can enlarge and shrink the pupil and can also tense and relax the ciliary muscle. That is, in theory, dynamic light can modulate and train vision. The vision training lamp utilizes the principle, controls the light brightness, the color temperature and the projection angle to change continuously through an artificial intelligence technology, simulates outdoor natural light to realize a dynamic light source, and achieves the eye-care function. The training lamp loads dynamic light waves while providing illumination for a user, so that eyes do unconscious movement along with light when the training lamp learns, ciliary muscles and crystalline lenses of eyes are linked to move along with the training lamp, the eye adjusting system keeps flexibility, and the occurrence and development of myopia are prevented and controlled.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an eye adjustment training lamp designed to optimize the light emitting effect of the eye adjustment training lamp.
In order to solve the technical problem, the utility model is realized by the following scheme: the utility model relates to an eye regulation training lamp, which comprises a lamp body and a control board arranged in the lamp body, wherein the control board is connected into a 12V power adapter, and the control board is respectively provided with:
the input end of the power filter and the circuit protection unit is connected to the power adapter and is used for filtering electromagnetic interference signals and preventing overhigh voltage so as to avoid burning off a post-stage circuit;
the input end of the voltage stabilizing circuit unit is connected to the output ends of the power filter and the circuit protection unit and provides proper and stable voltage for supplying power to a circuit system;
the microcontroller unit is used for controlling the operation of the whole circuit system, and the power supply input end of the microcontroller unit is connected with the output circuit of the voltage stabilizing circuit unit;
the LED constant current driving circuit unit provides constant current for the LED lamp, so that the brightness of the LED lamp is stable, the input end of the LED constant current driving circuit unit is electrically connected with the output end of the microcontroller unit, and the output end of the LED constant current driving circuit unit is connected with the LED lamp beads.
Furthermore, the power filter in the power filter and the circuit protection unit reduces the electromagnetic wave interference at the power port, and the circuit protection unit in the power filter and the circuit protection unit is formed by connecting a transient diode in parallel at two ends of the input power supply.
Further, the power filter and circuit protection unit includes:
a two pin JP1 interface, the JP1 interface being connected to the output circuit of the power adapter;
a capacitor C16, two ends of which are respectively connected to two pins of the JP1 interface;
an inductor L7, one end of a first coil of which is connected to the 2 pin of the JP1, one end of a second coil of which is connected to the 1 pin of the JP1, and the other end of the first coil is grounded;
a parallel circuit composed of a capacitor C9, a polar capacitor E8, a polar capacitor E5 and a diode VD1, wherein two ends of the parallel circuit are respectively connected to the ground terminal of the first coil and the other end of the second coil, the cathodes of the polar capacitor E8 and the polar capacitor E5 are both connected to the ground terminal of the first coil, and the anode of the diode VD1 is connected to the ground terminal of the first coil;
an inductor L3 having one end connected to the second coil output end;
a polar capacitor E4, having a negative terminal connected to the ground terminal of the first coil and a positive terminal connected to the other terminal of the inductor L3;
and the polar capacitor E3 is connected with the polar capacitor E4 in parallel.
Further, the voltage stabilizing circuit unit includes:
a resistor R1, one end of which is connected with the +12V voltage output from the power filter and the circuit protection unit;
the GND pin of the voltage stabilizing chip U1 is grounded, and the VOUT pin of the voltage stabilizing chip U1 outputs +5V voltage;
the capacitor C1 and the polar capacitor E1 are connected in parallel, the anode of the polar capacitor E1 is connected to the VIN pin of the voltage stabilizing chip U1, and the cathode of the polar capacitor E1 is connected to the GND pin of the voltage stabilizing chip U1;
the capacitor C2 and the polar capacitor E2 are connected in parallel, the anode of the polar capacitor E2 is connected to the VOUT pin of the voltage stabilizing chip U1, and the cathode of the polar capacitor E2 is connected to the GND pin of the voltage stabilizing chip U1.
Furthermore, two groups of LED constant current driving circuit units are arranged, and the two groups of LED constant current driving circuit units are connected to an interface JP2 with four pins;
the LED constant current driving circuit unit comprises:
the LED constant current driving circuit main chip U4 is grounded at a GND pin;
the anode of the diode VD2 is connected to the DIM pin of the LED constant current driving circuit main chip U4, and the cathode of the diode VD2 is connected to the +12V voltage output by the power filter and the circuit protection unit;
an inductor L5, one end of which is connected to the DIM pin of the LED constant current driving circuit main chip U4;
the anode of the polar capacitor E6 is connected with the other end of the inductor L5, and the cathode of the polar capacitor E6 is connected with the SW pin of the main chip U4 of the LED constant current driving circuit;
a capacitor C7 connected in parallel with the polar capacitor E6;
two ends of the resistor R10 are respectively connected to the CSN pin of the LED constant current driving circuit main chip U4 and the SW pin of the LED constant current driving circuit main chip U4;
an inductor L8, one end of the first coil of the inductor L8 is connected to the positive pole of the polar capacitor E6, the other end of the first coil of the inductor L8 is connected to the 4-pin of the interface JP2, one end of the second coil of the inductor L8 is connected to the negative pole of the polar capacitor E6, and the other end of the second coil is connected to the 3-pin of the interface JP 2;
a capacitor C17, two ends of which are respectively connected to pin 4 of JP2 and pin 3 of JP 2;
the LED constant-current driving circuit comprises a resistor R7, a resistor R5 and an inductor L1 which are connected in series, wherein the other end of the resistor R7 is grounded, the other end of the inductor L1 is connected to a PWM1 pin of the microcontroller unit, and a circuit LED out from a circuit node between the resistor R7 and the resistor R5 is connected to a VIN pin of the LED constant-current driving circuit main chip U4.
Furthermore, the eye adjustment training lamp further comprises a touch key circuit unit and a touch key, wherein the output end of the touch key circuit unit is connected with the microcontroller unit, and the input end of the touch key circuit unit is connected with the touch key.
Furthermore, the touch key circuit unit includes a touch sensing chip U3, and the touch sensing chip U3 has six independent touch sensing channels, and each touch sensing channel outputs independently one to one.
Furthermore, the device also comprises a buzzer driving circuit unit, wherein the buzzer driving circuit unit is electrically connected with the microcontroller unit.
Furthermore, the buzzer driving circuit unit comprises a triode Q1 and a buzzer B1, the triode Q1 is an NPN-type triode, an emitter of the triode is grounded, a collector of the triode is connected with a negative pin of the buzzer B1, a resistor R3 is connected between two pins of the buzzer B1, a positive pin of the buzzer B1 is connected with +5V voltage output by the microcontroller unit, a base of the triode Q1 is connected with a resistor R4, and the other end of the resistor R4 is connected to an SPZ pin of the microcontroller unit.
Compared with the prior art, the utility model has the beneficial effects that: the eye adjustment training lamp integrates a power supply EMC and circuit protection unit, a voltage stabilizing circuit unit, an LED constant current driving circuit unit and a touch key circuit unit. The touch chip and the electrode plate at the touch position of the lamp form a control loop. When a human body touches the inductive electrode plate, the touch signal is converted into pulsating direct current to generate a pulse signal which is transmitted to the touch chip, and then the inductive end of the touch chip can send out a stable trigger pulse signal. The brightness and time of the LED lamp are controlled by touching the key, and when the touch key sends a control command to the CPU, the control unit with the PIC18F46K20-E as a core receives and analyzes the control command and drives the brightness and time of the LED lamp through the LED constant current driving circuit unit. When a corresponding function key on the touch key is pressed, the CPU outputs the PWM duty ratio to the LED drive circuit through the IO port to control the light output. The function control of gradually 'dark' and gradually 'bright' is realized, and the luminous effect of the eye adjustment training lamp is optimized.
Drawings
Fig. 1 is a schematic diagram of an eye adjustment training lamp of the present invention.
Fig. 2 is a circuit diagram of a microcontroller unit according to the present invention.
Fig. 3 is a circuit diagram of a power filter and a circuit protection unit according to the present invention.
FIG. 4 is a circuit diagram of a voltage regulator circuit unit according to the present invention.
Fig. 5 is a circuit diagram of the LED constant current driving circuit unit according to the present invention.
FIG. 6 is a circuit diagram of a touch button circuit unit according to the present invention.
Fig. 7 is a circuit diagram of the buzzer driving circuit unit of the present invention.
Fig. 8 is a schematic perspective view of a lamp body of the eye adjustment training lamp of the present invention.
Fig. 9 is a side view of the lamp body of the eye adjustment training lamp of the present invention.
Fig. 10 is a bottom view of the lamp body of the eye adjustment training lamp of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is more clearly and clearly defined. It should be apparent that the described embodiments of the present invention are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1: the concrete structure of the utility model is as follows:
referring to fig. 1 and fig. 8-10, the eye-regulation training lamp of the present invention comprises a lamp body and a control board disposed in the lamp body, wherein the control board is connected to a 12V power adapter 1, the 12V power adapter 1 is also called an external power supply, 220V ac power is input and transformed by a transformer, then transformed into dc by a rectifier, the dc is filtered, and finally a stable 12V dc power is output.
The control panel is provided with:
the input end of the power filter and circuit protection unit 2 is connected to the power adapter 1 and is used for filtering electromagnetic interference signals and preventing overhigh voltage so as to avoid burning off a post-stage circuit;
the input end of the voltage stabilizing circuit unit 3 is connected to the output end of the power filter and circuit protection unit 2, and suitable and stable voltage is provided for supplying power to a circuit system;
a microcontroller unit 5 for controlling the operation of the whole circuit system, wherein a power input terminal of the microcontroller unit 5 is connected with an output circuit of the voltage stabilizing circuit unit 3, the microcontroller unit 5 adopts a PIC18F46K20-E/PT type control chip, the PIC18F46K20-E/PT is a PIC18 series 8-bit powerful, and a powerful PIC18 series is packaged
(RISC) architecture. The system clock can reach 64MHz at most;
the LED constant current driving circuit unit 6 provides constant current for the LED lamp, so that the brightness of the LED lamp is stable, the input end of the LED constant current driving circuit unit 6 is electrically connected with the output end of the microcontroller unit 5, and the output end of the LED constant current driving circuit unit 6 is connected with the LED lamp beads 8.
Example 2:
the working principle of the power filter and circuit protection unit 2 of the present invention is as follows:
the power filter in the power filter and circuit protection unit 2 reduces electromagnetic wave interference at the power port, and the circuit protection unit in the power filter and circuit protection unit 2 is formed by connecting a transient diode in parallel at two ends of an input power supply.
A preferred technical solution of this embodiment: the power filter and circuit protection unit 2 includes:
a JP1 interface with two pins, wherein the JP1 interface is connected to an output circuit of the power adapter 1;
a capacitor C16, two ends of which are respectively connected to two pins of the JP1 interface;
an inductor L7, one end of a first coil of which is connected to the 2 pin of the JP1, one end of a second coil of which is connected to the 1 pin of the JP1, and the other end of the first coil is grounded;
a parallel circuit composed of a capacitor C9, a polar capacitor E8, a polar capacitor E5 and a diode VD1, wherein two ends of the parallel circuit are respectively connected to the ground terminal of the first coil and the other end of the second coil, negative electrodes of the polar capacitor E8 and the polar capacitor E5 are both connected to the ground terminal of the first coil, and the positive electrode of the diode VD1 is connected to the ground terminal of the first coil;
an inductor L3 having one end connected to the second coil output end;
a polar capacitor E4, having a negative terminal connected to the ground terminal of the first coil and a positive terminal connected to the other terminal of the inductor L3;
a polar capacitor E3 connected in parallel with the polar capacitor E4.
The power supply filter mainly reduces electromagnetic wave interference. And noise wave is filtered, and due to the existence of electromagnetic noise, the product is interfered by other equipment, so that the product is abnormal in work. The electromagnetic interference protection device is mainly designed for electromagnetic interference of a power port, and the working reliability of a product is guaranteed. The protection circuit is connected with a transient diode in parallel at two ends of an input power supply, the transient diode is a semiconductor device with surge absorption capacity, the response time of the transient diode is extremely fast and reaches a subnanosecond level, so that once the circuit receives instant high-energy impact, the transient diode can restrain the energy, and the final result is that the following equipment or circuits are protected by absorbing instant large current and high voltage clamping from the circuit.
Example 3:
the working principle of the voltage stabilizing circuit unit 3 of the utility model is as follows:
the voltage stabilizing circuit unit 3 includes:
a resistor R1, one end of which is connected to the +12V voltage outputted from the power filter and circuit protection unit 2;
the GND pin of the voltage stabilizing chip U1 is grounded, and the VOUT pin of the voltage stabilizing chip U1 outputs +5V voltage;
the capacitor C1 and the polar capacitor E1 are connected in parallel, the anode of the polar capacitor E1 is connected to the VIN pin of the voltage stabilizing chip U1, and the cathode of the polar capacitor E1 is connected to the GND pin of the voltage stabilizing chip U1;
the positive electrode of the polar capacitor E2 is connected to the VOUT pin of the voltage stabilizing chip U1, and the negative electrode of the polar capacitor E2 is connected to the GND pin of the voltage stabilizing chip U1.
The voltage stabilizing chip U1 adopts LD1117-5V as the main chip of the voltage stabilizing circuit, and the LD1117-5V is a forward low-voltage drop voltage stabilizer, and the voltage drop is 1.2V under the current of 1A. The internal integrated overheat protection and current-limiting circuit is very suitable for a high-efficiency linear power supply voltage stabilizer.
Example 4:
the following is the working principle of the LED constant current driving circuit unit 6 of the present invention:
the LED constant current driving circuit units 6 are provided with two groups, and the two groups of LED constant current driving circuit units 6 are connected to an interface JP2 with four pins;
the LED constant current driving circuit unit 6 includes:
the LED constant current driving circuit main chip U4 is grounded at a GND pin;
the anode of the diode VD2 is connected to the DIM pin of the LED constant current driving circuit main chip U4, and the cathode of the diode VD2 is connected to the +12V voltage output by the power filter and circuit protection unit 2;
an inductor L5, one end of which is connected to the DIM pin of the LED constant current driving circuit main chip U4;
the anode of the polar capacitor E6 is connected with the other end of the inductor L5, and the cathode of the polar capacitor E6 is connected with the SW pin of the main chip U4 of the LED constant current driving circuit;
a capacitor C7 connected in parallel with the polar capacitor E6;
two ends of the resistor R10 are respectively connected to the CSN pin of the LED constant current driving circuit main chip U4 and the SW pin of the LED constant current driving circuit main chip U4;
an inductor L8, one end of the first coil of the inductor L8 is connected to the positive pole of the polar capacitor E6, the other end of the first coil of the inductor L8 is connected to the 4-pin of the interface JP2, one end of the second coil of the inductor L8 is connected to the negative pole of the polar capacitor E6, and the other end of the second coil is connected to the 3-pin of the interface JP 2;
a capacitor C17, two ends of which are respectively connected to the 4 pin of JP2 and the 3 pin of JP 2;
the LED constant-current driving circuit comprises a resistor R7, a resistor R5 and an inductor L1 which are connected in series, wherein the other end of the resistor R7 is grounded, the other end of the inductor L1 is connected to a PWM1 pin of the microcontroller unit 5, and a circuit LED out from a circuit node between the resistor R7 and the resistor R5 is connected to a VIN pin of the LED constant-current driving circuit main chip U4.
The main chip U4 of the LED constant current driving circuit adopts PT4115 as a main chip, the output current of the main chip is adjustable, and the main chip can drive LEDs with the output current of tens of watts. A power switch is arranged in a main chip U4 of the LED constant-current driving circuit, high-end current sampling is adopted to set LED average current, and analog dimming and wide-range PWM dimming can be received through a DIM pin. When the voltage of the DIM is lower than 0.3 v, the power switch is turned off, and the chip PT4115 enters a standby state with an extremely low operating current. The chip PT4115 is an inductive buck converter operating in continuous mode. Under the condition that the power supply voltage is higher than the output voltage, single or multiple LEDs connected in series can be driven efficiently. The input voltage range of the IC is 5V-24V, the output current is externally adjustable, and the maximum output current can reach 0.7A. The chip PT4115 is internally integrated with a power tube and a high-end current detection circuit, and the average output current can be set through an external resistor. In addition, the output current of the chip PT4115 can be adjusted to be lower than the set value through an external ADJ pin (not shown). The ADJ pin may receive a dc voltage or a PWM signal, supporting either linear dimming or PWM dimming. If a voltage of 0.2V or less is applied to the ADJ pin, the output power tube will be turned off. The chip PT4115 integrates an overheat soft turn-off function, when the internal junction temperature of the chip rises to 135 ℃, the output current is gradually reduced along with the continuous rise of the junction temperature, and when the junction temperature reaches 150 ℃, the output current is reduced to 0.
Example 5:
the following is the operating principle of the touch key circuit unit 7:
a preferred technical solution of this embodiment: the eye adjustment training lamp further comprises a touch key circuit unit 7 and a touch key 9, wherein the output end of the touch key circuit unit 7 is connected with the microcontroller unit 5, and the input end of the touch key circuit unit is connected with the touch key 9.
A preferred technical solution of this embodiment: the touch key circuit unit 7 includes a touch sensing chip U3, and the touch sensing chip U3 has six independent touch sensing channels, and each touch sensing channel outputs independently one-to-one. The touch sensing chip U3 has 16 pins, and the circuit structure of the 16 pins is as follows:
the pin 1 is a GND pin which is grounded;
the pin 2 is a pin C1, the pin 3 is a pin CSEL, the pin C1 and the pin CSEL are respectively connected with a capacitor C7 and a capacitor C9, and the other ends of the capacitor C7 and the capacitor C9 are connected with each other and grounded;
the circuits connected with the pins 4 to 8 are the same, the circuits connected with the pins 4 to 8 are connected with a first capacitor and a first inductor, the other ends of the 5 first capacitors are grounded respectively, and the other ends of the 5 first inductors are connected to five pin positions of the contact plate respectively;
the 9 feet and the 10 feet are empty;
five pins from 11 pins to 15 pins are respectively connected with a resistor, the other end of each resistor is connected with a +5V voltage, and the five pins from 11 pins to 15 pins are output pins;
the 16 pins are respectively connected with two second capacitors and a second inductor, the other ends of the two second capacitors are respectively grounded, and the other end of the second inductor is connected with +5V voltage.
The touch key circuit comprises a copper foil touch switch and a touch chip.
The touch key transmits instructions to the chip through the fluctuation of capacitance or resistance generated by the proximity switch of the human body part, and the chip controls the switch circuit to realize the on-off. In the process, the human body does not need to contact the high-voltage power supply in a close range. The method is realized by utilizing the large change of the capacitance after the human body is contacted. The touch key circuit unit 7 adopts XW06A as a touch sensing chip, and XW06A is a 6-channel capacitive touch sensing chip, which can replace the traditional mechanical key switch to realize an integrated sealed and beautiful appearance. The chip is packaged in an environment-friendly mode through SOP16, and 6-channel one-to-one output is achieved. Has strong anti-interference performance. 6 independent touch-sensitive channels, one-to-one independent output. The peripheral circuit is simple, and only one 4.7nF capacitor is needed at least. Peripheral parasitic capacitance is automatically corrected, and sensitivity capacitance is shared by multiple channels.
Example 6:
a preferred technical solution of this embodiment: the intelligent control system is characterized by further comprising a buzzer driving circuit unit 4, wherein the buzzer driving circuit unit 4 is electrically connected with the microcontroller unit 5.
A preferred technical solution of this embodiment: buzzer drive circuit unit 4 includes triode Q1 and buzzer B1, triode Q1 is NPN type triode, and its emitter ground connection, its collecting electrode are connected buzzer B1's negative pole foot, be connected with resistance R3 between two feet of buzzer B1, buzzer B1's anodal foot access by the +5V voltage of microcontroller unit 5 output, triode Q1's base is connected with resistance R4, resistance R4's the other end connects to microcontroller unit 5's SPZ foot.
Since the IO port current of the microcontroller unit 5 is limited, a triode switch circuit is used to drive the passive buzzer. When the key is pressed down, the IO port corresponding to the MCU gives out a pulse signal, and then the buzzer can give out corresponding sound.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides an eye regulation training lamp, include the lamp main part and set up in control panel in the lamp main part, this control panel inserts 12V power adapter (1), its characterized in that, be provided with on the control panel respectively:
the input end of the power filter and circuit protection unit (2) is connected to the power adapter (1) and is used for filtering electromagnetic interference signals and preventing overhigh voltage so as to avoid burning off a post-stage circuit;
the input end of the voltage stabilizing circuit unit (3) is connected to the output end of the power filter and circuit protection unit (2) and provides proper and stable voltage for supplying power to a circuit system;
the microcontroller unit (5) is used for controlling the operation of the whole circuit system, and the power supply input end of the microcontroller unit (5) is connected with the output circuit of the voltage stabilizing circuit unit (3);
the LED constant current driving circuit comprises at least one group of LED constant current driving circuit units (6), the LED constant current driving circuit units (6) provide constant current for the LED lamp, so that the brightness of the LED lamp is stable, the input ends of the LED constant current driving circuit units (6) are electrically connected with the output ends of the microcontroller unit (5), and the output ends of the LED constant current driving circuit units (6) are connected with LED lamp beads (8).
2. An eye accommodation training lamp as claimed in claim 1, wherein the power filter of the power filter and circuit protection unit (2) reduces electromagnetic interference at the power port, and the circuit protection unit of the power filter and circuit protection unit (2) is a transient diode connected in parallel across the input power supply.
3. An eye accommodation training lamp according to claim 2, wherein the power filter and circuit protection unit (2) comprises:
a two-pin JP1 interface, the JP1 interface being connected to an output circuit of the power adapter (1);
a capacitor C16, two ends of which are respectively connected to two pins of the JP1 interface;
an inductor L7, one end of a first coil of which is connected to the 2 pin of the JP1, one end of a second coil of which is connected to the 1 pin of the JP1, and the other end of the first coil is grounded;
a parallel circuit composed of a capacitor C9, a polar capacitor E8, a polar capacitor E5 and a diode VD1, wherein two ends of the parallel circuit are respectively connected to the ground terminal of the first coil and the other end of the second coil, the cathodes of the polar capacitor E8 and the polar capacitor E5 are both connected to the ground terminal of the first coil, and the anode of the diode VD1 is connected to the ground terminal of the first coil;
an inductor L3 having one end connected to the second coil output end;
a polar capacitor E4, having a negative terminal connected to the ground terminal of the first coil and a positive terminal connected to the other terminal of the inductor L3;
and the polar capacitor E3 is connected with the polar capacitor E4 in parallel.
4. An eye adjustment training lamp as claimed in claim 1, characterized in that the voltage regulator circuit unit (3) comprises:
a resistor R1, one end of which is connected with the +12V voltage output from the power filter and circuit protection unit (2);
the GND pin of the voltage stabilizing chip U1 is grounded, and the VOUT pin of the voltage stabilizing chip U1 outputs +5V voltage;
the capacitor C1 and the polar capacitor E1 are connected in parallel, the anode of the polar capacitor E1 is connected to the VIN pin of the voltage stabilizing chip U1, and the cathode of the polar capacitor E1 is connected to the GND pin of the voltage stabilizing chip U1;
the positive electrode of the polar capacitor E2 is connected to the VOUT pin of the voltage stabilizing chip U1, and the negative electrode of the polar capacitor E2 is connected to the GND pin of the voltage stabilizing chip U1.
5. An eye adjustment training lamp as claimed in claim 1, wherein, the LED constant current driving circuit units (6) are provided with two groups, and the two groups of LED constant current driving circuit units (6) are connected to an interface JP2 with four pins;
the LED constant current driving circuit unit (6) comprises:
the LED constant current driving circuit main chip U4 is grounded at a GND pin;
the anode of the diode VD2 is connected to the DIM pin of the LED constant current driving circuit main chip U4, and the cathode of the diode VD2 is connected to the +12V voltage output by the power filter and the circuit protection unit (2);
an inductor L5, one end of which is connected to the DIM pin of the LED constant current driving circuit main chip U4;
the anode of the polar capacitor E6 is connected with the other end of the inductor L5, and the cathode of the polar capacitor E6 is connected with the SW pin of the LED constant current driving circuit main chip U4;
a capacitor C7 connected in parallel with the polar capacitor E6;
two ends of the resistor R10 are respectively connected to the CSN pin of the LED constant current driving circuit main chip U4 and the SW pin of the LED constant current driving circuit main chip U4;
an inductor L8, one end of the first coil of the inductor L8 is connected to the positive pole of the polar capacitor E6, the other end of the first coil of the inductor L8 is connected to the 4-pin of the interface JP2, one end of the second coil of the inductor L8 is connected to the negative pole of the polar capacitor E6, and the other end of the second coil is connected to the 3-pin of the interface JP 2;
a capacitor C17, two ends of which are respectively connected to pin 4 of JP2 and pin 3 of JP 2;
the LED constant current driving circuit comprises a resistor R7, a resistor R5 and an inductor L1 which are connected in series, wherein the other end of the resistor R7 is grounded, the other end of the inductor L1 is connected to a PWM1 pin of the microcontroller unit (5), and a circuit LED out from a circuit node between the resistor R7 and the resistor R5 is connected to a VIN pin of the LED constant current driving circuit main chip U4.
6. An eye adjustment training lamp as claimed in claim 1, further comprising a touch key circuit unit (7) and a touch key (9), wherein the output end of the touch key circuit unit (7) is connected to the microcontroller unit (5), and the input end of the touch key circuit unit is connected to the touch key (9).
7. The eye adjustment training lamp as claimed in claim 6, wherein the touch button circuit unit (7) comprises a touch sensing chip U3, the touch sensing chip U3 has six independent touch sensing channels, and each touch sensing channel has one-to-one independent output.
8. An eye accommodation training lamp as claimed in claim 1, further comprising a buzzer driving circuit unit (4), wherein the buzzer driving circuit unit (4) is electrically connected with the microcontroller unit (5).
9. The eye adjustment training lamp as claimed in claim 8, wherein the buzzer driving circuit unit (4) comprises a transistor Q1 and a buzzer B1, the transistor Q1 is an NPN-type transistor, an emitter thereof is grounded, a collector thereof is connected to a negative terminal of the buzzer B1, a resistor R3 is connected between two terminals of the buzzer B1, a positive terminal of the buzzer B1 is connected to the +5V voltage outputted by the microcontroller unit (5), a base of the transistor Q1 is connected to the resistor R4, and the other terminal of the resistor R4 is connected to the SPZ terminal of the microcontroller unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220014550.9U CN216873430U (en) | 2022-01-06 | 2022-01-06 | Eye adjustment training lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220014550.9U CN216873430U (en) | 2022-01-06 | 2022-01-06 | Eye adjustment training lamp |
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| Publication Number | Publication Date |
|---|---|
| CN216873430U true CN216873430U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220014550.9U Active CN216873430U (en) | 2022-01-06 | 2022-01-06 | Eye adjustment training lamp |
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| Country | Link |
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| CN (1) | CN216873430U (en) |
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