Mirror lamp circuit capable of providing stable voltage

Abstract

The utility model discloses a mirror lamp circuit capable of providing stable voltage, a control circuit comprises a voltage stabilizing module and a control module, and the voltage stabilizing module is connected between a power adapter and the control module; the input end of the main controller is connected with a linear voltage stabilizing chip, and the output end of the main controller is connected with a light source and a heating wire through a first MOS tube and a second MOS tube respectively. By integrating the linear voltage stabilizing chip, the voltage output by the power adapter is effectively stabilized, the electric heating wire and the light source can work stably under various voltage fluctuations, and the service life of equipment is prolonged. Meanwhile, due to the combined design of a main controller, a first MOS tube and a second MOS tube in the control module, a user can accurately adjust the heating temperature of the electric heating wire and the brightness of the light source through intelligent control, the use flexibility and comfort are greatly improved, the diversified requirements in different scenes are met, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, and in particular to a mirror lamp circuit that can provide a stable voltage. Background Technology

[0002] In daily life and the beauty and hairdressing industry, mirror lights, as devices that combine lighting and decoration functions, are widely used in homes, barbershops, beauty salons, and other places. Traditional mirror lights usually only provide a single lighting function. With the advancement of technology and the diversification of consumer needs, mirror lights with integrated heating functions have gradually appeared on the market, aiming to provide users with a more convenient and comfortable user experience, especially in cold seasons or in scenarios where facial skin needs to be kept at a certain temperature, such as when applying makeup or skincare.

[0003] However, existing mirror lights with heating functions have some design shortcomings. Firstly, the heating element and light source are often powered directly from the power adapter, lacking an effective voltage stabilization mechanism. This can lead to unstable operation of the heating element and light source when the power supply voltage fluctuates, affecting the performance and lifespan of the device. Secondly, the control of the heating element and light source mostly relies on simple on / off switches, lacking intelligent adjustment methods. Users cannot flexibly adjust the heating temperature and lighting brightness according to actual needs, limiting the product's applicability and user experience. Clearly, existing technology needs improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a mirror lamp circuit that can provide a stable voltage, so as to solve the problem that the adjustment of mirror lamps in the prior art lacks a stable mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mirror lamp circuit capable of providing stable voltage, comprising a heating wire and a light source disposed on the mirror body, and further comprising a connected power adapter and a control circuit, wherein the control circuit comprises a voltage regulator module and a control module, the voltage regulator module being connected between the power adapter and the control module; the voltage regulator module is a linear voltage regulator chip, and the control module comprises a main controller, a first MOSFET and a second MOSFET, wherein the input terminal of the main controller is connected to the linear voltage regulator chip, and the output terminal of the main controller is connected to the light source and the heating wire respectively through the first MOSFET and the second MOSFET.

[0006] In one embodiment of the present invention, a first touch button, a second touch button, and a third touch button are also connected to the input terminal of the main controller.

[0007] The beneficial effect of the above embodiments is that by adding a first touch button, a second touch button and a third touch button, users can operate directly on the lens body without having to find a remote control or other control devices, which greatly improves the convenience of use.

[0008] In one embodiment of this utility model, the output terminal of the power adapter is connected to the heating wire and the light source respectively.

[0009] The beneficial effects of the above embodiments are that the power adapter directly supplies power to the heating wire and the light source. This design simplifies the circuit structure, reduces intermediate energy conversion steps, and improves energy utilization efficiency.

[0010] In one embodiment of this utility model, the output voltage of the power adapter is 24V; the output voltage of the linear voltage regulator chip is 5V.

[0011] In one embodiment of this utility model, the main controller is a microcontroller, which integrates a storage unit and a processing unit to receive control signals and control the working state of the first MOS transistor and the second MOS transistor.

[0012] In one embodiment of the present invention, the gates of the first MOS transistor and the second MOS transistor are respectively connected to the output terminal of the main controller, the sources are respectively connected to the output terminal of the power adapter, and the drains are respectively connected to the light source and the heating wire, for controlling the current flow between the power adapter and the light source and the heating wire.

[0013] In one embodiment of this utility model, the linear voltage regulator chip is an LM780 chip, whose input terminal is connected to the output terminal of the power adapter and whose output terminal is connected to the power pin of the main controller to provide a stable 5V voltage to the control module.

[0014] In one embodiment of the present invention, a power switch is further included, which is connected between the power adapter and the control circuit and is used to control the power supply of the entire electronic device.

[0015] As described above, the mirror lamp circuit of this invention, capable of providing stable voltage, has the following beneficial effects: By integrating a linear voltage regulator chip, the output voltage of the power adapter is effectively stabilized, ensuring that the heating wire and light source can operate stably under various voltage fluctuations, thus extending the service life of the equipment. Simultaneously, the combined design of the main controller, the first MOSFET, and the second MOSFET in the control module allows users to achieve precise adjustment of the heating wire temperature and light source brightness through intelligent control, greatly improving the flexibility and comfort of use. This not only meets the diverse needs of different scenarios but also improves energy efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 The circuit diagram of the mirror lamp circuit that provides a stable voltage is provided by this utility model.

[0018] Component designation explanation

[0019] 1. Heating wire, 2. Light source, 3. Power adapter, 4. Linear voltage regulator chip, 5. Main controller, 6. First MOSFET, 7. Second MOSFET, 8. First touch button, 9. Second touch button, 10. Third touch button. Detailed Implementation

[0020] This utility model provides a mirror lamp circuit that can provide a stable voltage. To make the purpose, technical solution and effect of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments.

[0021] In the description of this utility model, it should be understood that the terms "up, down, left, right" and other indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation" and "connection" should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Please see Figure 1 This invention provides a mirror lamp circuit capable of providing stable voltage, including a heating wire 1 and a light source 2 mounted on the mirror body, and a connected power adapter 3 and control circuit. The control circuit includes a voltage regulator module and a control module, with the voltage regulator module connected between the power adapter 3 and the control module. The voltage regulator module is a linear voltage regulator chip 4. The control module includes a main controller 5, a first MOSFET 6, and a second MOSFET 7. The input terminal of the main controller 5 is connected to the linear voltage regulator chip 4, and the output terminal of the main controller 5 is connected to the light source 2 and the heating wire 1 through the first MOSFET 6 and the second MOSFET 7, respectively. Preferably, the output voltage of the power adapter 3 is 24V; the output voltage of the linear voltage regulator chip 4 is 5V.

[0023] In this embodiment, the output terminals of the power adapter 3 are connected to the heating wire 1 and the light source 2, respectively. The power adapter 3 directly supplies power to the heating wire 1 and the light source 2, simplifying the circuit structure, reducing intermediate energy conversion steps, and improving energy utilization efficiency. The power adapter 3 converts 220-240V AC power into a stable DC 24V voltage for the linear voltage regulator chip 4, which then steps down the DC 24V voltage and stabilizes it to 5V for output.

[0024] Preferably, the device also includes a first touch button 8, a second touch button 8, and a third touch button 10 connected to the input terminal of the main controller 5. By adding these three touch buttons, users can operate directly on the mirror body without needing to find a remote control or other control devices, greatly improving ease of use. The main controller 5 is a microcontroller, which integrates a storage unit and a processing unit to receive control signals and control the operating states of the first MOSFET 6 and the second MOSFET 7. It is easy to understand that the first touch button 8, the second touch button 8, and the third touch button 10 can respectively control the operating states of the heating wire 1 and the light source 2. In this embodiment, the main controller 5 is a microcontroller. The microcontroller detects whether there is a touch operation on each touchpad through the I / O port, and then outputs a corresponding PWM signal to control the corresponding first MOSFET or second MOSFET to control whether the heating wire 1 is turned on and to control the brightness and color temperature of the light source 2.

[0025] In this embodiment, the gates of the first MOSFET 6 and the second MOSFET 7 are respectively connected to the output terminals of the main controller, their sources are respectively connected to the output terminals of the power adapter, and their drains are respectively connected to the light source 2 and the heating wire 1, used to control the current flow between the power adapter 3 and the light source 2 and the heating wire 1. More specifically, the linear voltage regulator chip 4 is an LM780 chip, whose input terminal is connected to the output terminal of the power adapter 3, and its output terminal is connected to the power supply pin of the main controller 5, providing a stable 5V voltage to the control module.

[0026] In another feasible embodiment, a power switch is also included, which is connected between the power adapter 3 and the control circuit to control the power supply to and from the entire electronic device.

[0027] In summary, the mirror lamp circuit of this invention, which provides a stable voltage, effectively stabilizes the output voltage of the power adapter 3 by integrating a linear voltage regulator chip 4. This ensures that the heating wire 1 and the light source 2 can operate stably under various voltage fluctuations, extending the service life of the equipment. Simultaneously, the combined design of the main controller 5, the first MOSFET 6, and the second MOSFET 7 in the control module allows users to precisely adjust the heating temperature of the heating wire 1 and the brightness of the light source 2 through intelligent control, greatly improving the flexibility and comfort of use. It not only meets diverse needs in different scenarios but also improves energy efficiency. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0028] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A mirror lamp circuit capable of providing a stable voltage, comprising a heating wire and a light source provided on a mirror body, characterized in that, The application further comprises a connected power adapter and a control circuit, the control circuit comprising a voltage stabilizing module and a control module, the voltage stabilizing module being connected between the power adapter and the control module; the voltage stabilizing module being a linear voltage stabilizing chip, the control module comprising a main controller, a first MOS tube and a second MOS tube, the input end of the main controller being connected with the linear voltage stabilizing chip, the output end of the main controller being connected with the light source and the heating wire through the first MOS tube and the second MOS tube respectively.

2. The mirror lamp circuit capable of providing a stable voltage according to claim 1, characterized in that, The application further comprises a first touch button, a second touch button and a third touch button connected to the input end of the main controller.

3. The mirror lamp circuit capable of providing a stable voltage according to claim 1, wherein, The output end of the power adapter is connected with the heating wire and the light source respectively.

4. The mirror lamp circuit capable of providing a stable voltage according to claim 1, wherein, The output voltage of the power adapter is 24V; the output voltage of the linear voltage stabilizing chip is 5V.

5. The mirror lamp circuit capable of providing a stable voltage according to claim 4, wherein, The main controller is a single-chip microcomputer, which is internally integrated with a storage unit and an arithmetic unit, and is used for receiving a control signal and controlling the working state of the first MOS tube and the second MOS tube.

6. The mirror lamp circuit capable of providing a stable voltage according to claim 5, wherein, The gate of the first MOS tube and the second MOS tube is connected with the output end of the main controller respectively, the source is connected with the output end of the power adapter respectively, and the drain is connected with the light source and the heating wire respectively, so as to control the on-off of the current between the power adapter and the light source and the heating wire.

7. The mirror lamp circuit capable of providing a stabilized voltage according to claim 6, characterized in that, The linear voltage stabilizing chip adopts an LM780 type chip, the input end of which is connected with the output end of the power adapter, and the output end of which is connected with the power pin of the main controller, so as to provide a stable 5V voltage for the control module.

8. The mirror lamp circuit capable of providing a stable voltage according to claim 1, wherein, The application further comprises a power switch connected between the power adapter and the control circuit, which is used for controlling the on-off of the power supply of the whole electronic device.

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