Stroboflash-free single-fire panel

Abstract

The utility model provides a stroboflash-free single-fire panel, which is used for controlling on and off of a lamp load and comprises a power supply module, a driving module, a charging module, a main control module and a switch module. The power supply module is connected to a mains supply live wire, the lamp load is connected to a mains supply null line, the power supply module supplies power to the lamp load through the driving module, the driving module controls on-off of a power supply loop of the power supply module and the lamp load, the charging module stores electric energy and provides a working power supply for the main control module and the driving module, and the main control module sends a driving signal to the driving module. And the driving module controls the on-off of a lamp load power supply loop according to the driving signal. When commercial power exists and the lamp load is in an off state, the charging module supplies power to the main control module and other modules, the driving module controls the power supply circuit of the power supply chip assembly and the lamp load to be disconnected, the lamp load is not connected to any circuit, no current flows through the lamp load, and thus the lamp load is prevented from flickering. When no mains supply exists, the electric energy stored in the charging module continues to provide power for the main control module.

Description

Technical Field

[0001] This utility model relates to the field of electronic switches and lighting control, and in particular to a flicker-free single-fire panel. Background Technology

[0002] A single-wire power supply system is a common lighting circuit configuration where the switch controls only the live wire, while the neutral wire remains connected to the load. This configuration leaves a loop in the circuit even after the light is off, allowing a small current to flow. While this current is insufficient to light the bulb, it is enough to cause it to flicker, a phenomenon known as "ghosting," which negatively impacts user experience and the lifespan of the lighting equipment. Utility Model Content

[0003] To address the aforementioned issues, the purpose of this invention is to provide a flicker-free single-lamp panel. Through circuit design, the circuit is completely disconnected when the lamp load is off, thus solving the problem of flickering caused by a small current still flowing through the lamp load when it is off.

[0004] This utility model is achieved through the following technical solution:

[0005] A flicker-free single-lamp panel includes: a lamp load, a power supply module, a driver module, a charging module, a main control module, and a switch module;

[0006] The lamp load is connected to the drive module and the neutral wire respectively;

[0007] The power module is connected to the mains power line and outputs power to power the charging module. The power module is connected to the lamp load through the drive module to power the lamp load.

[0008] The charging module is connected to the power module, the drive module and the main control module respectively. The charging module is used to store electrical energy and provide working power to the main control module and the drive module.

[0009] The drive module is connected to the main control module. The main control module is used to send drive signals to the drive module. The drive module is used to control the drive signals to control the power supply circuit of the power supply module to the lamp load.

[0010] A switch module, connected to the main control module, is used to trigger the transmission of the drive signal; and / or, the switch module is disposed between the charging module and the drive module, and is used to control the on / off of the power supply circuit of the charging module to the drive module.

[0011] Furthermore, the charging module includes a charge / discharge management chip, a backup battery, and a voltage regulator component connected in sequence. The charge / discharge management chip is connected to the output terminal of the power module and is used to charge the backup battery. The output terminal of the voltage regulator component is connected to the main control module and the drive module and is used to supply power to the main control module and the drive module.

[0012] Furthermore, the driving module includes a driving chip and a relay connected to the driving chip. The lamp load is connected to the moving contact of the relay, and the stationary contact of the relay is connected to the power supply module. The driving chip is connected to the charging module and the main control module respectively. The charging module provides working power to the driving chip, and the main control module is used to transmit driving signals to the driving chip.

[0013] Furthermore, the power module includes a power chip assembly and a DC-DC step-down chip. The power chip assembly is connected to the drive module and is used to supply power to the lamp load through the drive module. The output terminal of the DC-DC step-down chip is connected to the charging module.

[0014] Furthermore, the single-fire panel also includes a wireless module, which is connected to the main control module and used to communicate with the terminal.

[0015] Furthermore, the single-fire panel also includes an indicator light assembly, which is connected to the main control module, and the main control module controls the illumination of the indicator light assembly.

[0016] Furthermore, the single-wire panel also includes an indicator light switch connected to the main control module. The indicator light switch sends a light-on / off signal to the main control module, and the main control module controls the light-on / off of the indicator light assembly according to the light-on / off signal.

[0017] Furthermore,

[0018] Compared with the prior art, the technical solution of this utility model and its beneficial effects are as follows:

[0019] (1) In the single-fire panel of this utility model, the power module is connected to the mains live wire, and the lamp load is connected to the mains neutral wire. The power module supplies power to the lamp load through the drive module, which controls the opening and closing of the power supply circuit between the power module and the lamp load. The charging module stores electrical energy and provides working power to the main control module and the drive module. The main control module sends a drive signal to the drive module, which controls the opening and closing of the lamp load power supply circuit according to the drive signal. When there is mains power and the lamp load is off, the electrical energy stored in the charging module supplies power to the main control module and other modules, disconnecting the power supply circuit between the drive module control power chip assembly and the lamp load. Since the lamp load is not connected to any circuit, no current flows through the lamp load, thus preventing the lamp load from flickering. When there is no mains power, the electrical energy stored in the charging module continues to supply power to the main control module.

[0020] (2) In the absence of mains power, the backup battery of the single-fire panel of this utility model supplies power to the main control module, indicator light assembly and indicator light switch, so that when there is no mains power, the corresponding indicator light can be selected to be lit by the indicator light switch, which provides convenience for life. Attached Figure Description

[0021] Figure 1 This is a block diagram illustrating the principle of a flicker-free single-fire panel provided in this embodiment of the utility model;

[0022] Figure 2 This is a partial circuit schematic diagram of the main control module provided in this embodiment of the utility model;

[0023] Figure 3 This is a circuit diagram of the voltage regulating component provided in this embodiment of the utility model;

[0024] Figure 4 This is a circuit schematic diagram of the driving module provided in an embodiment of the present invention;

[0025] Figure 5 This is a circuit schematic diagram of the power module provided in this embodiment of the utility model;

[0026] Figure 6 This is a circuit diagram of the indicator light assembly provided in this embodiment of the utility model;

[0027] Figure 7 This is a circuit diagram of the indicator light switch provided in this embodiment of the utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] See Figure 1 A flicker-free single-lamp panel includes a lamp load, a power module, a driver module, a charging module, a main control module, and a switch module.

[0030] The power module is connected to the mains live wire L and outputs power to the charging module. The power module is also connected to the lamp load via the driver module, supplying power to the lamp load. The power module may include a power chip and a DC-DC step-down chip, allowing it to output multiple voltage levels to meet the power supply requirements of different modules. In this embodiment, the DC-DC step-down chip outputs 5V to power the charging module. The power chip assembly is connected to the driver module, which then supplies power to the lamp load.

[0031] The charging module is connected to the power supply module, main control module, and drive module. The charging module stores electrical energy and outputs a 3V power supply to provide operating power to the main control module and drive module. The main control module is connected to the drive module and sends drive signals to it. The drive module controls the on / off state of the power supply circuit from the power supply module to the lamp load.

[0032] The switch module is connected to the main control module and is used to trigger the transmission of drive signals, thereby controlling the main control module to send drive signals to the drive module. Alternatively, the switch module is placed between the charging module and the drive module to control the on / off state of the power supply circuit from the charging module to the drive module. The switch module can be a physical switch or an analog switch; cutting off the power supply to the drive module or the drive signal will turn off the lamp load.

[0033] When there is mains power and the lamp load is off, the main control module and other modules are powered by the power stored in the charging module. The drive module controls the power chip components to disconnect from the power supply circuit of the lamp load. The lamp load is not connected to any circuit, so no current flows through the lamp load, thus avoiding lamp load flickering.

[0034] The charging module includes a charge / discharge management chip, a backup battery, and a voltage regulator connected in sequence. The charge / discharge management chip is connected to the output of the power module and is used to charge the backup battery. The output of the voltage regulator is connected to the main control module and the drive module and is used to provide 3V operating power to the main control module and the drive module.

[0035] The drive module includes a drive chip and a relay connected to the drive chip. The lamp load is connected to the moving contact of the relay, and the stationary contact of the relay is connected to the power supply chip assembly. When the relay is closed, the power supply chip assembly supplies power to the lamp load, and the lamp load operates. When the relay is open, the power supply circuit for the lamp load is broken, and the lamp load is turned off.

[0036] The driver chip is connected to the charging module and the main control module respectively. The charging module provides the working power to the driver chip, and the main control module is used to transmit the driving signal to the driver chip. Under the 3V working power supply, the driver chip controls the on and off of the relay according to the driving signal, thereby controlling the lighting of the lamp load.

[0037] See Figure 2 The main control module's control chip U3 is connected to the IO expansion chip U4 via IIC. The drive signals issued by the control chip U3 are transmitted to the IO expansion chip U4 through the SDA, SCL, and SDB interfaces. The IO expansion chip U4 then outputs a set of control signals RELAY1_1 and RELAY1_2 to the drive module. Of course, the number of control signals output by the IO expansion chip U4 corresponds to the number of lamp loads.

[0038] See Figure 3 The diagram shows the voltage regulation component. The voltage drop chip U2 regulates the output of the backup battery to the working power supply of output VCC3V, which powers the control chip U3 and the driver chip.

[0039] See also Figure 4 The diagram illustrates the drive module, which includes a drive chip U1 and a relay K1. The input terminals of drive chip U1 are connected to a set of control signals RELAY1_1 and RELAY1_2 output from the IO expansion chip U4. Simultaneously, the charging module provides a 3V operating power supply to drive chip U1. Drive chip U1 controls the on / off state of relay K1 according to the control signals. The coil terminals of relay K1 are connected to the output terminals of drive chip U1. The stationary contact of relay K1 is connected to the power supply module, and the moving contact of relay K1 is connected to the lamp load. When relay K1 is energized, the power supply circuit for the lamp load is activated, and the lamp load begins to operate. When relay K1 is deactivated, the power supply circuit for the lamp load is deactivated, and the lamp load is extinguished. At this time, the lamp load is not connected to any circuit, therefore, no current flows through the lamp load, preventing flickering.

[0040] See Figure 5In this embodiment, when mains power is available and the lamp load is in the on state, the on-state power supply circuit composed of the lamp load and the driver module charges the backup battery in the charging module and supplies power to the main control module. Specifically, when mains power is available, the lamp load lights up after the relay is energized. At this time, a voltage difference is generated across the MOSFET Q2. The FB pin of the power chip U2 detects this voltage signal. By adjusting the external parameters of the FB pin, the voltage difference is fixed at 12V. By detecting this voltage signal, the GATE pin of the power chip U2 is controlled to output a high or low level to control the switching of the MOSFET Q2, thereby continuously drawing power. The stable 12V voltage is then rectified by the diode and electrolytic capacitor and converted into a 5V voltage by the DC-DC chip U1 to power the charging module and charge the backup battery.

[0041] See Figure 6 And in conjunction with reference Figure 1 , Figure 2 The flicker-free single-wire panel also includes an indicator light assembly, which is powered by the charging module. The indicator light assembly is connected to the control chip U3 via an IO expansion chip U4. The control chip U3 communicates with the IO expansion chip U4 through interfaces SDA, SCL, and SDB. The IO expansion chip U4 outputs the indicator light control signal LED1, thereby controlling the power supply circuit between the charging module and the indicator light assembly.

[0042] See Figure 7 It also includes an indicator light switch corresponding to the control chip U3. The indicator light switch sends an on / off signal KEY1 to the main control module. The control chip U3 controls the indicator light based on the on / off signal KEY1. The IO expansion chip U4 outputs the indicator light control signal LED1, thereby controlling the on / off state of the indicator light assembly. Of course, there can be several groups of indicator light assemblies and indicator light switches, with one-to-one correspondence.

[0043] In this embodiment, a wireless module is also included. The wireless module is connected to the control chip U3 and is used to communicate with the terminal, so that users can control the operation of the load lamp through a mobile phone APP.

[0044] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A flicker-free single-fire panel for controlling the on / off state of a lamp load, characterized in that, include: Power supply module, driver module, charging module, main control module and switch module; The lamp load is connected to the drive module and the neutral wire respectively; The power module is connected to the mains power line and outputs power to power the charging module. The power module is connected to the lamp load through the drive module to power the lamp load. The charging module is connected to the power module, the drive module and the main control module respectively. The charging module is used to store electrical energy and provide working power to the main control module and the drive module. The drive module is connected to the main control module. The main control module is used to send drive signals to the drive module. The drive module is used to control the drive signals to control the power supply circuit of the power supply module to the lamp load. A switch module, connected to the main control module, is used to trigger the transmission of the drive signal; and / or, the switch module is disposed between the charging module and the drive module, and is used to control the on / off of the power supply circuit of the charging module to the drive module.

2. The flicker-free single-fire panel according to claim 1, characterized in that, The charging module includes a charge / discharge management chip, a backup battery, and a voltage regulator component connected in sequence. The charge / discharge management chip is connected to the output terminal of the power module and is used to charge the backup battery. The output terminal of the voltage regulator component is connected to the main control module and the drive module and is used to supply power to the main control module and the drive module.

3. The flicker-free single-fire panel according to claim 1, characterized in that, The drive module includes a drive chip and a relay connected to the drive chip. The lamp load is connected to the moving contact of the relay, and the stationary contact of the relay is connected to the power supply module. The drive chip is connected to the charging module and the main control module respectively. The charging module provides working power to the drive chip, and the main control module is used to transmit drive signals to the drive chip.

4. The flicker-free single-fire panel according to claim 1, characterized in that, The power module includes a power chip assembly and a DC-DC step-down chip. The power chip assembly is connected to the drive module and is used to supply power to the lamp load through the drive module. The output terminal of the DC-DC step-down chip is connected to the charging module.

5. A flicker-free single-fire panel according to claim 1, characterized in that, It also includes a wireless module, which is connected to the main control module and is used to communicate with the terminal.

6. A flicker-free single-fire panel according to claim 1, characterized in that, It also includes an indicator light assembly, which is connected to the main control module, and the main control module controls the illumination of the indicator light assembly.

7. A flicker-free single-fire panel according to claim 6, characterized in that, It also includes an indicator light switch connected to the main control module. The indicator light switch sends a light-on / off signal to the main control module, and the main control module controls the light-on / off of the indicator light assembly according to the light-on / off signal.

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