Light-emitting control circuit and lamp

Abstract

The utility model discloses a luminescence control circuit and lamp relates to luminescence control technical field, the luminescence control circuit includes: master control circuit and communication module, the lamp includes LED green light subassembly, LED red light subassembly and LED blue light subassembly, LED green light subassembly's controlled terminal, LED red light subassembly's controlled terminal and LED blue light subassembly's controlled terminal all are connected with signal input terminal, and the signal input terminal is connected with the communication module. The control end of the main control circuit is electrically connected with the signal input end, the communication module is electrically connected with the main control module, the communication module establishes communication connection with an external terminal and is used for accessing a control signal sent by the external terminal, and the main control circuit is used for respectively controlling the brightness of the LED green light assembly, the LED red light assembly and the LED blue light assembly according to the control signal; the technical problems that an existing lamp is inconvenient in control mode and single in light-emitting effect are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of light emission control, and particularly relates to a light emission control circuit and a lamp. Background Art

[0002] As a device for daily lighting, while people's demand for lamps is constantly expanding, they also have higher functional requirements. However, existing lamps are generally controlled by wall switches. Traditional wall switches have the disadvantages of short distance and low convenience. Their control requires people to operate by hand in person, and they cannot be controlled freely at home. Although the remote control method improves the distance, it has poor anti-interference ability at the same time. If encountering the same type of remote control, there may be a phenomenon of incorrect control. Moreover, the existing lamps have a relatively single light emission effect and cannot meet the growing personalized needs of users. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a light emission control circuit and a lamp, aiming to solve the technical problems that the control method of existing lamps is inconvenient and the light emission effect of lamps is relatively single.

[0004] To achieve the above purpose, a light emission control circuit proposed by the utility model is applied to a lamp. The lamp has a signal input end for accessing a control signal. The lamp includes an LED green light component, an LED red light component, and an LED blue light component. The controlled ends of the LED green light component, the LED red light component, and the LED blue light component are all connected to the signal input end. The light emission control circuit includes:

[0005] A main control circuit, the control end of which is electrically connected to the signal input end;

[0006] A communication module, which is electrically connected to the main control module, establishes a communication connection with an external terminal, and is used for accessing a control signal sent by the external terminal;

[0007] The main control circuit is used for respectively controlling the brightness of the LED green light component, the LED red light component, and the LED blue light component according to the control signal.

[0008] In an embodiment, the lamp further includes a power input end for accessing a power supply. The light emission control circuit further includes:

[0009] A switch circuit, the input end of which is used for accessing a power supply, the output end of which is electrically connected to the power supply end, and the controlled end of which is electrically connected to the main control circuit; the main control circuit is used for controlling the switch circuit to conduct / turn off according to the control signal.

[0010] In one embodiment, the switch circuit includes:

[0011] A first switch transistor and a second switch transistor. The input ends of the first switch transistor and the second switch transistor are both used to connect to a power supply. The output end of the first switch circuit and the output end of the second switch transistor are both electrically connected to the power input end. The controlled ends of the first switch transistor and the second switch transistor are both electrically connected to the main control circuit.

[0012] In one embodiment, the light-emitting control circuit further includes:

[0013] An overvoltage protection circuit. The detection end of the overvoltage protection circuit is electrically connected to the input end of the switch circuit, and the output end of the overvoltage protection circuit is electrically connected to the controlled end of the switch circuit; when the voltage at the input end of the switch circuit is greater than a preset voltage value, the overvoltage protection circuit controls the switch circuit to turn off.

[0014] In one embodiment, the overvoltage protection circuit includes:

[0015] A first resistor and a first zener diode. The first end of the first resistor is electrically connected to the input end of the switch circuit, the second end of the first resistor is electrically connected to the cathode of the first zener diode, the anode of the first zener diode is grounded, and the cathode of the first zener diode is also electrically connected to the controlled end of the switch circuit.

[0016] In one embodiment, the light-emitting control circuit further includes:

[0017] An infrared sensor. The output end of the infrared sensor is electrically connected to the main control circuit. The infrared sensor is used to detect the heat radiated by the human body and output a corresponding infrared detection signal; the main control circuit is used to control the switch circuit to turn on when receiving the infrared detection signal.

[0018] In one embodiment, the light-emitting control circuit further includes:

[0019] A voice recognition module and a microphone. The output end of the microphone is electrically connected to the signal receiving end of the voice recognition module, and the output end of the voice recognition module is electrically connected to the main control circuit; the microphone is used to convert the sound emitted by the human body into a corresponding electrical signal, the voice recognition module is used to convert the electrical signal into a corresponding voice recognition signal, and the main control circuit is used to control the brightness of the LED green light assembly, the LED red light assembly, and the LED blue light assembly respectively according to the voice recognition signal.

[0020] In one embodiment, the communication module includes a wireless communication module, and the wireless communication module establishes a wireless communication connection with an external terminal.

[0021] The present utility model further provides a lamp, which includes an LED green lamp component, an LED red lamp component, an LED blue lamp component, and the light-emitting control circuit described in any one of the above.

[0022] The technical solution of the present utility model includes a main control circuit and a communication module. The lamp includes an LED green lamp component, an LED red lamp component, and an LED blue lamp component. The communication module is configured to receive control signals sent from an external terminal such as a mobile phone or a host computer, and transmit the control signals to the main control circuit. The main control circuit controls the light-emitting ratios of the LED green lamp component, the LED red lamp component, and the LED blue lamp component respectively according to the control signals, and various required colors can be mixed to make the lamp emit light of corresponding colors. With such a setting, in practical applications, users can set corresponding control signals through a mobile phone application or host computer software. The lamp provided with the light-emitting control circuit of the present utility model adjusts the light-emitting ratios of the LED green lamp component, the LED red lamp component, and the LED blue lamp component after receiving the corresponding signals, so as to mix the colors required by the users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0024] Figure 1 It is a schematic diagram of modules according to an embodiment of the present utility model;

[0025] Figure 2 It is a schematic diagram of the circuit structure according to an embodiment of the present utility model;

[0026] Figure 3 It is a schematic diagram of modules according to another embodiment of the present utility model.

[0027] Description of the reference numerals in the drawings:

[0028] 10. Communication module; 20. Main control circuit; 30. Switching circuit; 40. Overvoltage protection circuit; 50. Infrared sensor; 60. Microphone; 70. Voice recognition module.

[0029] The realization of the object, functional features, and advantages of the present utility model will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] As a device for daily lighting, while people's demand for lamps is constantly expanding, there are also higher functional requirements. However, existing lamps are generally controlled by wall switches. Traditional wall switches have the disadvantages of short distance and low convenience. Their control must be manually operated by people themselves, and they cannot be controlled at will at home. Although the remote control method improves the distance, it has poor anti-interference ability at the same time. If it encounters the same type of remote control, there may be a phenomenon of incorrect control. In addition, the existing lamps have a relatively single light-emitting effect and cannot meet the growing personalized needs of users.

[0034] Therefore, the present utility model proposes a light-emitting control circuit and a lamp, aiming to solve the technical problems that the control method of existing lamps is inconvenient and the light-emitting effect of the lamps is relatively single.

[0035] Reference Figures 1 - 3, a light emission control circuit, which is applied to a lamp. The lamp has a signal input terminal for accessing a control signal. The lamp includes an LED green light component, an LED red light component, and an LED blue light component. The controlled terminals of the LED green light component, the LED red light component, and the LED blue light component are all connected to the signal input terminal. The light emission control circuit includes:

[0036] A main control circuit 20, the control terminal of the main control circuit 20 is electrically connected to the signal input terminal;

[0037] A communication module 10, the communication module 10 is electrically connected to the main control module. The communication module 10 establishes a communication connection with an external terminal and is used to access the control signal sent by the external terminal;

[0038] The main control circuit 20 is used to respectively control the brightness of the LED green light component, the LED red light component, and the LED blue light component according to the control signal.

[0039] In this embodiment, the communication module 10 is a wireless communication module 10, such as 2.4G wireless communication, Bluetooth, ZigBee, etc., to adapt to the communication requirements of different external terminals.

[0040] In this embodiment, the LED green light component, the LED red light component, and the LED blue light component are all light strips composed of multiple LED lights.

[0041] In this embodiment, the main control circuit 20 can be implemented by a main controller, such as an MCU (Microcontroller Unit, micro control unit), a DSP (Digital Signal Process, digital signal processing chip), an FPGA (Field Programmable Gate Array, programmable logic gate array chip), an SOC (System On Chip, system-level chip), etc.;

[0042] In this embodiment, the main control circuit 20 stores various light emission ratios of the LED green light component, the LED red light component, and the LED blue light component. When the user sends a control signal through the external terminal, the main control circuit 20 respectively outputs corresponding PWM control signals to the LED green light component, the LED red light component, and the LED blue light component, so that the light emission ratios of the LED green light component, the LED red light component, and the LED blue light component are adjusted according to the preset ratios, thereby enabling the lamp to emit light of corresponding colors.

[0043] Specifically, the technical solution of the present utility model includes a main control circuit 20 and a communication module 10. The lamp includes an LED green light component, an LED red light component, and an LED blue light component. The communication module 10 is used to receive control signals sent from external terminals such as mobile phones and host computers, and transmit the control signals to the main control circuit 20. The main control circuit 20 controls the light-emitting ratios of the LED green light component, the LED red light component, and the LED blue light component respectively according to the control signals, and can mix various required colors to make the lamp emit corresponding colored light. With such a setting, in practical applications, users can set corresponding control signals through mobile phone applications or host computer software. The lamp provided with the light-emitting control circuit of the present utility model adjusts the light-emitting ratios of the LED green light component, the LED red light component, and the LED blue light component after receiving the corresponding signals, so as to mix the colors required by the users.

[0044] Reference Figure 2 , in an embodiment of the present utility model, the lamp further includes a power input terminal for accessing a power supply, and the light-emitting control circuit further includes:

[0045] A switch circuit 30, the input end of the switch circuit 30 is used to access the power supply, the output end of the switch circuit 30 is electrically connected to the power supply terminal, and the controlled end of the switch circuit 30 is electrically connected to the main control circuit 20; the main control circuit 20 is used to control the switch circuit 30 to conduct / turn off according to the control signal.

[0046] In this embodiment, the switch circuit 30 can be implemented by at least one switching tube, such as a MOS tube, an IGBT tube, a thyristor, a triode, a power tube, etc., and / or implemented by at least one switching device, such as a contactor, a circuit breaker, and a relay.

[0047] In this embodiment, the main control circuit 20 outputs a PWM signal with a corresponding duty cycle to the switch circuit 30 according to the control signal, so as to adjust the conduction duration of the switch circuit 30. The larger the duty cycle of the PWM signal, the longer the conduction duration of the switch circuit 30, the larger the current output from the power supply to the lamp, and the greater the brightness of the lamp; or the main control circuit 20 controls the switch circuit 30 to conduct / turn off according to the control signal, so as to make the lamp emit light / go out. With such a setting, in practical applications, users can set corresponding control signals in mobile phone applications or host computer software according to actual needs to adjust the brightness or switch of the lamp.

[0048] In this embodiment, the switch circuit 30 includes:

[0049] The first switching transistor Q1 and the second switching transistor Q2, the input ends of the first switching transistor Q1 and the second switching transistor Q2 are both used for connecting to a power supply, the output end of the first switching circuit 30 and the output end of the second switching transistor Q2 are both electrically connected to the power input end, and the controlled ends of the first switching transistor Q1 and the second switching transistor Q2 are both electrically connected to the main control circuit 20.

[0050] In this embodiment, both the first switching transistor Q1 and the second switching transistor Q2 can be any one of a MOS transistor, a bipolar transistor, or an IGBT transistor.

[0051] In this embodiment, both the first switching transistor Q1 and the second switching transistor Q2 are NMOS transistors. The first switching transistor Q1 and the second switching transistor Q2 are used to shunt the current output by the power supply, so as to avoid damage to a single switching transistor caused by excessive current. And when one of the switching transistors is damaged, the other switching transistor can still maintain operation. With such a setting, the reliability and fault tolerance of the lamp are improved.

[0052] In this embodiment, the light-emitting control circuit further includes:

[0053] An overvoltage protection circuit 40, the detection end of the overvoltage protection circuit 40 is electrically connected to the input end of the switching circuit 30, and the output end of the overvoltage protection circuit 40 is electrically connected to the controlled end of the switching circuit 30; when the voltage at the input end of the switching circuit 30 is greater than a preset voltage value, the overvoltage protection circuit 40 controls the switching circuit 30 to turn off.

[0054] In this embodiment, the overvoltage protection circuit 40 detects the voltage at the input end of the switching circuit 30, that is, the voltage of the power supply. When the voltage is greater than the preset value, it outputs a corresponding control signal to control the switching circuit 30 to turn off, so as to disconnect the path between the power supply and the power input end, thereby protecting the lamp from being damaged by excessive voltage.

[0055] In this embodiment, the overvoltage protection circuit 40 includes:

[0056] A first resistor R1 and a first zener diode D1. The first end of the first resistor R1 is electrically connected to the input end of the switching circuit 30, the second end of the first resistor R1 is electrically connected to the cathode of the first zener diode D1, the anode of the first zener diode D1 is grounded, and the cathode of the first zener diode D1 is also electrically connected to the controlled end of the switching circuit 30.

[0057] In this embodiment, when the voltage of the power supply is greater than the preset voltage value, the zener diode conducts, so that the voltage of the first resistor R1 increases. When the switching circuit 30 uses a PMOS transistor or a PNP bipolar transistor, the voltage at the controlled terminal of the switching circuit 30 increases, causing the switching circuit 30 to turn off, thereby disconnecting the path between the power supply and the power input terminal and protecting the lamp from damage by excessive voltage. With such a setting, the lighting control circuit of the present utility model can achieve the technical effect of overvoltage protection with only two components, which can reduce the material cost and volume of the lighting control circuit of the present utility model. The smaller volume enables the present utility model to be better placed inside the lamp.

[0058] Reference Figure 3 , in an embodiment of the present utility model, the lighting control circuit further includes:

[0059] An infrared sensor 50, the output terminal of the infrared sensor 50 is electrically connected to the main control circuit 20. The infrared sensor 50 is used to detect the heat radiated by the human body and output a corresponding infrared detection signal; the main control circuit 20 is used to control the switching circuit 30 to conduct when receiving the infrared detection signal.

[0060] In this embodiment, when a user approaches the lamp provided with the present utility model, the infrared sensor 50 inside the lamp detects the heat radiated by the human body and outputs a corresponding infrared detection signal to the main control circuit 20, so that the main control circuit 20 controls the switching circuit 30 to conduct, thereby controlling the lamp to emit light. With such a setting, in practical applications, the lamp automatically lights up when the user approaches, which can provide illumination for the user and avoid potential safety hazards that may occur when walking in the dark.

[0061] Reference Figure 3 , in an embodiment of the present utility model, the lighting control circuit further includes:

[0062] A voice recognition module 70 and a microphone 60. The output terminal of the microphone 60 is electrically connected to the signal receiving terminal of the voice recognition module 70, and the output terminal of the voice recognition module 70 is electrically connected to the main control circuit 20; the microphone 60 is used to convert the sound emitted by the human body into a corresponding electrical signal, the voice recognition module 70 is used to convert the electrical signal into a corresponding voice recognition signal, and the main control circuit 20 is used to control the brightness of the LED green light assembly, the LED red light assembly, and the LED blue light assembly respectively according to the voice recognition signal.

[0063] In this embodiment, the microphone 60 is used to capture the sound emitted by the user and convert it into an electrical signal (analog signal). The speech recognition module 70 converts these electrical signals into corresponding speech recognition signals (control signals). The main control circuit 20 compares the speech recognition signals with the speech recognition entries stored therein. If they are similar, the main control circuit 20 outputs the control signals corresponding to the speech recognition entries to the switch circuit 30 or the lamp, so that the switch circuit 30 or the lamp operates in the corresponding working state, thereby achieving the user's purpose. With such a setting, in practical applications, the user can easily achieve diversified control of the lamp through simple voice commands, such as "increase brightness", "switch color", etc., to meet the needs of different scenarios and moods. Moreover, compared with the traditional button or switch control method, the voice recognition-based control is more convenient and natural, without the need for the user to perform cumbersome operations.

[0064] The present utility model also proposes a lamp, which includes the light emission control circuit as described above.

[0065] It should be noted that since the lamp of the present utility model is based on the above light emission control circuit, therefore, the embodiments of the lamp of the present utility model include all the technical solutions of all the embodiments of the above light emission control circuit, and the achieved technical effects are also exactly the same, and will not be elaborated herein.

[0066] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A light emitting control circuit, applied to a lamp, characterized in that: The lamp has a signal input end for receiving a control signal, the lamp includes an LED green light component, an LED red light component and an LED blue light component, the controlled end of the LED green light component, the controlled end of the LED red light component and the controlled end of the LED blue light component are all connected to the signal input end, and the light emitting control circuit includes: A main control circuit, wherein a control terminal of the main control circuit is electrically connected to the signal input terminal; A communication module, the communication module is electrically connected to the main control circuit, the communication module establishes a communication connection with an external terminal, and is used to receive a control signal sent from the external terminal; The main control circuit is used to control the brightness of the LED green light component, the LED red light component and the LED blue light component respectively according to the control signal.

2. The light emitting control circuit according to claim 1, characterized in that: The lamp also includes a power input terminal for connecting to a power supply, and the light emitting control circuit also includes: A switch circuit, wherein the input end of the switch circuit is used to access the power supply, the output end of the switch circuit is electrically connected to the power input end, and the controlled end of the switch circuit is electrically connected to the main control circuit; the main control circuit is used to control the switch circuit to be turned on / off according to the control signal.

3. The light emitting control circuit according to claim 2, characterized in that: The switch circuit comprises: A first switch tube and a second switch tube, wherein the input end of the first switch tube and the input end of the second switch tube are both used to connect to a power supply, the output end of the first switch tube and the output end of the second switch tube are both electrically connected to the power input end, and the controlled end of the first switch tube and the controlled end of the second switch tube are both electrically connected to the main control circuit.

4. The light emitting control circuit according to claim 2, characterized in that: The light emitting control circuit further includes: An overvoltage protection circuit, wherein the detection end of the overvoltage protection circuit is electrically connected to the input end of the switch circuit, and the output end of the overvoltage protection circuit is electrically connected to the controlled end of the switch circuit; when the voltage at the input end of the switch circuit is greater than a preset voltage value, the overvoltage protection circuit controls the switch circuit to shut down.

5. The light emitting control circuit according to claim 4, characterized in that: The overvoltage protection circuit comprises: A first resistor and a first zener diode, wherein the first end of the first resistor is electrically connected to the input end of the switch circuit, the second end of the first resistor is electrically connected to the cathode of the first zener diode, the anode of the first zener diode is grounded, and the cathode of the first zener diode is also electrically connected to the controlled end of the switch circuit.

6. The light emitting control circuit according to claim 2, characterized in that: The light emitting control circuit further includes: An infrared sensor, the output end of which is electrically connected to the main control circuit, the infrared sensor is used to detect the heat radiated by the human body and output a corresponding infrared detection signal; the main control circuit is used to control the switching circuit to be turned on when receiving the infrared detection signal.

7. The light emitting control circuit according to claim 1, characterized in that: The light emitting control circuit further includes: A voice recognition module and a microphone, wherein the output end of the microphone is electrically connected to the signal receiving end of the voice recognition module, and the output end of the voice recognition module is electrically connected to the main control circuit; the microphone is used to convert the sound emitted by the human body into a corresponding electrical signal, the voice recognition module is used to convert the electrical signal into a corresponding voice recognition signal, and the main control circuit is used to control the brightness of the LED green light component, the LED red light component and the LED blue light component respectively according to the voice recognition signal.

8. The light emitting control circuit according to claim 1, characterized in that: The communication module includes a wireless communication module, and the wireless communication module establishes a wireless communication connection with an external terminal.

9. A lamp, characterized in that: It comprises an LED green light component, an LED red light component, an LED blue light component and a light emitting control circuit as claimed in any one of claims 1 to 8.

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