LED lamp control circuit

Abstract

The utility model relates to the field of lamp circuits, in particular to a light-emitting diode (LED) lamp control circuit, which comprises an LED lamp group unit, a voltage regulating unit, a microprogrammed control unit (MCU), a communication unit and a power storage unit, and is characterized in that the voltage regulating unit comprises a first voltage regulating module and a second voltage regulating module; the voltage output end of the electricity storage unit is connected with the voltage input end of the first voltage regulating module and the voltage input end of the second voltage regulating module, and the voltage output end of the second voltage regulating module is connected with the voltage input end of the LED lamp set unit and the signal input end of the MCU unit. The voltage output end of the first voltage regulating module is connected with the voltage input end of the MCU and the voltage output end of the communication unit. The communication unit is connected with the electricity storage unit and the MCU through serial ports. Information is transmitted through the electricity storage unit and the communication unit, so that the upper computer sends an instruction to inquire the electric quantity and enters a transportation mode in the transportation process, and a lamp is not required to be turned on by false triggering.

Description

Technical Field

[0001] This utility model relates to the field of lighting circuit technology, specifically to an LED lighting control circuit. Background Technology

[0002] LED lights are common lighting fixtures, which have the advantages of high brightness, low energy consumption and long life. They are widely welcomed in the market. Their internal components mainly consist of a lamp housing, LED lamp beads assembly fixed in the lamp housing, driver board and heat conduction block. The control circuit on the driver board controls the opening and closing of the LED lamp beads assembly by connecting relevant sensors and circuits on the LED lamp beads assembly.

[0003] In practical use, LED lights often encounter situations where they cannot be connected to an external power source or require temporary power outages to relocate. This leads to inconvenience in daily use. To address this shortcoming, most LED lights incorporate a built-in battery as an energy storage unit. When the LED light cannot be connected to an external power source or needs to be relocated, it can power the LED chip assembly, driver board, and other components. When the LED light can be connected to an external power source, it uses the external power to charge the energy storage unit and simultaneously power other components. Since the energy storage unit is built into the LED light, the energy storage module constantly powers the LED chip assembly. When the LED light needs to be transported for a long time or over a long distance, the LED light assembly powered by the energy storage module is prone to being accidentally turned on, resulting in wear and tear on the LED light and potentially causing damage. Utility Model Content

[0004] The purpose of this invention is to provide an LED lighting control circuit that prevents LED lights from being accidentally turned on during long-distance and long-term transportation, thus avoiding transportation losses and damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an LED lighting control circuit, including an LED lamp group unit, a voltage regulation unit, and an MCU unit, further including a communication unit and a power storage unit. The voltage regulation unit includes a first voltage regulation module and a second voltage regulation module. The voltage output terminal of the power storage unit is connected to the voltage input terminal of the first voltage regulation module and the voltage input terminal of the second voltage regulation module, respectively. The voltage output terminal of the second voltage regulation module is connected to the voltage input terminal of the LED lamp group unit and the signal input terminal of the MCU unit, respectively. The voltage output terminal of the first voltage regulation module is connected to the voltage input terminal of the MCU unit and the voltage input terminal of the communication unit, respectively. The communication unit communicates with the power storage unit and the MCU unit through a serial port.

[0006] The LED lighting control circuit described above also includes a first voltage detection module for detecting the voltage of the lighting fixture. The voltage input terminal of the first voltage detection module is connected to the LED lighting unit, and the voltage output terminal of the first voltage detection module is grounded.

[0007] The LED lighting control circuit described above also includes a second voltage detection module for detecting the voltage of the storage battery. The voltage input terminal of the second voltage detection module is connected to the energy storage unit, and the voltage output terminal of the second voltage detection module is grounded.

[0008] The LED lighting control circuit described above also includes a touch chip module. The voltage output terminal of the MCU unit is connected to the voltage input terminal of the touch chip module, and the signal output terminal of the touch chip module is connected to the signal input terminal of the MCU unit.

[0009] The LED lighting control circuit described above also includes a programming port module, which is connected to the MCU unit via a serial port. The voltage output terminal of the first voltage regulating module is connected to the voltage input terminal of the programming port module.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the information transmission through the energy storage unit and the communication unit is for the purpose of sending instructions to the host computer to query the power level and enter the transportation mode during transportation, so as not to accidentally trigger the lights to turn on. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the LED lighting control circuit of this utility model;

[0012] Figure 2 This is a circuit diagram of the energy storage unit and the second voltage detection module of this utility model.

[0013] Figure 3 This is a circuit diagram of the first voltage regulating module of this utility model;

[0014] Figure 4 This is a circuit diagram of the second voltage regulating module of this utility model;

[0015] Figure 5 This is a circuit diagram of the LED lamp assembly unit and the first voltage detection module of this utility model;

[0016] Figure 6 This is a circuit diagram of the MCU unit of this utility model;

[0017] Figure 7 This is a circuit diagram of the touch chip module of this utility model;

[0018] Figure 8This is a circuit diagram of the communication module of this utility model;

[0019] Figure 9 This is a circuit diagram of the programming port module of this utility model.

[0020] In the diagram: 1. Second voltage detection module; 2. Energy storage unit; 3. First voltage regulation module; 4. Second voltage regulation module; 5. LED lamp group unit; 6. First voltage detection module; 7. MCU unit; 8. Touch chip module; 9. Communication unit; 10. Programming port module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0022] like Figure 1-9 As shown, the present invention provides an LED lighting control circuit, including an LED lamp group unit 5, a voltage regulating unit, and an MCU unit 7, as well as a communication unit 9 and a power storage unit. The voltage regulating unit includes a first voltage regulating module 3 and a second voltage regulating module 4. The voltage output terminal of the power storage unit is connected to the voltage input terminal of the first voltage regulating module 3 and the voltage input terminal of the second voltage regulating module 4, respectively. The voltage output terminal of the second voltage regulating module 4 is connected to the voltage input terminal of the LED lamp group unit 5 and the signal input terminal of the MCU unit 7, respectively. The voltage output terminal of the first voltage regulating module 3 is connected to the voltage input terminal of the MCU unit 7 and the voltage input terminal of the communication unit 9, respectively. The communication unit 9 communicates with the power storage unit and the MCU unit 7 through a serial port.

[0023] The working principle is that information is transmitted through the energy storage unit and the communication unit so that the host computer can send instructions to query the power level and enter the transportation mode during transportation to prevent accidental activation of the lights.

[0024] Preferably, it further includes a first voltage detection module 6 for detecting the voltage of the lamp, the voltage input terminal of the first voltage detection module 6 is connected to the LED lamp group unit 5, and the voltage output terminal of the first voltage detection module 6 is grounded.

[0025] Preferably, it further includes a second voltage detection module 1 for detecting the voltage of the storage battery. The voltage input terminal of the second voltage detection module 1 is connected to the energy storage unit, and the voltage output terminal of the second voltage detection module 1 is grounded.

[0026] The second voltage detection module 1 serves as overvoltage protection and undervoltage protection. For example, when the charging input voltage is greater than 7.2V, the second detection module triggers overvoltage protection for the energy storage unit 2, disconnects the connection with the USB, and cuts off the power supply to the output. When the voltage of the energy storage unit 2 (battery) is fully charged, the second detection module triggers undervoltage protection for the energy storage unit 2, requiring the battery voltage to drop below 3.7V before charging can begin.

[0027] The first voltage regulation module 3 is a specific step-down circuit, including chip U1, diodes D1 and D2, capacitors C4, C5, C6, C7 and C8, inductor L1 and resistor R4. Chip U1 has three pins. One end of capacitor C4 and one end of inductor L1 are connected to the VBAT terminal of energy storage unit 2, and the other end of capacitor C4 is grounded. One end of inductor L1 is connected to one end of resistor R4, and the other end of resistor R4 is connected to pin 3 of chip U1. One end of diode D2, one end of capacitor C5 and one end of capacitor C6 are all connected to pin 3 of chip U1, and one end of diode D2, one end of capacitor C5 and the other end of capacitor C6 are all grounded. Pin 1 of chip U1 is grounded. Pin 2 of chip U1 is connected to one end of capacitor C7 and one end of capacitor C8, and the other ends of capacitor C7 and C8 are grounded. The negative terminal of diode D1 is adjusted to the VBAT terminal of energy storage unit 2, and the positive terminal of diode D1 is connected to a 2.8V voltage.

[0028] The second voltage regulation circuit is a boost circuit, including chip U17, resistors R17, R18, R20, R21, R23, R24 and R25, capacitors C19, C20, C21, C22, C23, C24, C40 and C42, and inductor L3. Chip U17 has 21 pins. One pin of chip U17 is connected to one end of capacitor C40. Pins 3, 4, 5, 6 and 7 of chip U17 are all connected to one end of resistor R23. The other end of resistor R23 is connected to one end of inductor L3. The other end of inductor L3 is connected to the VBAT terminal of energy storage unit 2. Capacitors C20 and C24 are connected in parallel with capacitor C42. The positive terminal of capacitor C42 is connected to the VBAT terminal of energy storage unit 2, and the negative terminal of capacitor C42 is grounded. Capacitor C21 is located on pin 8 of chip U17 and is connected to inductor L3. Pin 9 of chip U17 is connected to the VBAT terminal of energy storage unit 2. A capacitor C22 is installed on pin 10 of chip U17. Pins 11 and 12 of chip U17 are grounded. Pins 14, 15 and 16 of chip U17 are connected to the positive terminal of capacitor C23 and are all connected to an external 12V voltage. The negative terminal of capacitor C23 is grounded. Pin 17 of chip U17 is connected to one end of resistor R24. The other end of resistor R24 ​​is connected to the positive terminal of capacitor C23. Pin 18 of chip U17 is connected to one end of resistor R20. The other end of resistor R20, capacitor C19, resistor R17, resistor R18 and one end of resistor R24 ​​are connected in sequence. The other end of resistor R24 ​​is connected to the positive terminal of capacitor C23. Pin 19 of chip U17 is connected to one end of resistor R21. The other end of resistor R21 is connected between capacitor C19 and resistor R17.

[0029] In this embodiment, a touch chip module 8 is also included. The voltage output terminal of the MCU unit 7 is connected to the voltage input terminal of the touch chip module 8, and the signal output terminal of the touch chip module 8 is connected to the signal input terminal of the MCU unit 7.

[0030] The touch chip module 8 includes chip U16, capacitor C30, capacitor C31, and resistor R48. Chip U16 has nine pins. Pin 2 of chip U16 is connected to one end of capacitor C30, and the other end of capacitor C30 is grounded. Pins 4 and 9 of chip U16 are both grounded. Pin 7 of chip U16 is connected to one end of resistor R48, and the other end of resistor R48 is connected to the TP terminal of the LED bead unit. Pin 6 of chip U16 is connected to one end of capacitor C31, and the other end of capacitor C31 is grounded.

[0031] In this embodiment, a programming port module 10 is also included. The programming port module 10 is connected to the MCU unit 7 via a serial port, and the voltage output terminal of the first voltage regulating module 3 is connected to the voltage input terminal of the programming port module 10.

[0032] The programming port module 10 includes a chip U20, a universal serial bus USB1, resistors R38, R39, and R40. The chip U20 has seven pins. Pin 1 of the chip U20 is positive and is connected to the voltage output terminal of the first voltage regulating module 3. Pin 2 of the chip U20 is connected to one end of resistor R38. Pin 4 of the chip U20 is connected to one end of resistor R40. Pin 5 of the chip U20 is connected to one end of resistor R39. Pins 6 and 7 of the chip U20 are respectively connected to the universal serial bus USB1. The universal serial bus USB1 is connected to the signal terminal of the MCU unit 7.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An LED lighting control circuit, comprising an LED lamp group unit, a voltage regulation unit, and an MCU unit, characterized in that, It also includes a communication unit and an energy storage unit. The voltage regulation unit includes a first voltage regulation module and a second voltage regulation module. The voltage output terminal of the energy storage unit is connected to the voltage input terminal of the first voltage regulation module and the voltage input terminal of the second voltage regulation module, respectively. The voltage output terminal of the second voltage regulation module is connected to the voltage input terminal of the LED lamp group unit and the signal input terminal of the MCU unit, respectively. The voltage output terminal of the first voltage regulation module is connected to the voltage input terminal of the MCU unit and the voltage input terminal of the communication unit, respectively. The communication unit communicates with the energy storage unit and the MCU unit through a serial port.

2. The LED lighting control circuit according to claim 1, characterized in that, It also includes a first voltage detection module for detecting the voltage of the lamp, the voltage input terminal of the first voltage detection module is connected to the LED lamp group unit, and the voltage output terminal of the first voltage detection module is grounded.

3. The LED lighting control circuit according to claim 1, characterized in that, It also includes a second voltage detection module for detecting the voltage of the storage battery. The voltage input terminal of the second voltage detection module is connected to the energy storage unit, and the voltage output terminal of the second voltage detection module is grounded.

4. The LED lighting control circuit according to claim 1, characterized in that, It also includes a touch chip module, wherein the voltage output terminal of the MCU unit is connected to the voltage input terminal of the touch chip module, and the signal output terminal of the touch chip module is connected to the signal input terminal of the MCU unit.

5. The LED lighting control circuit according to claim 1, characterized in that, It also includes a programming port module, which is connected to the MCU unit via a serial port, and the voltage output terminal of the first voltage regulation module is connected to the voltage input terminal of the programming port module.

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