Power configuration circuit, spliced lighting device and system
By introducing signal acquisition and control modules into the splicing lighting equipment and integrating the output of multiple power conversion modules, the problem of shortened lifespan caused by power difference in power conversion modules is solved, and stable operation and extended lifespan of the equipment are achieved under different splicing methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-04-07
AI Technical Summary
In splicing lighting equipment, the different connection positions of multiple power conversion modules result in significant power differences, which affects the service life of the power conversion modules.
A power configuration circuit is adopted, including a signal acquisition module, an integration module, and a control module. The signal acquisition module monitors the output of the power conversion module, and the control module generates an integration control signal to regulate the integration module, integrating multiple power supplies to generate an output signal and reducing the output difference of the power conversion module.
This improves the lifespan of the power conversion module and ensures stable operation of the load lamp blocks under different splicing methods, meeting power requirements.
Smart Images
Figure CN224097884U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power control technology, and more specifically, to a power configuration circuit, a splicing lighting device, and a system. Background Technology
[0002] For modular products, when there are many loads, multiple power conversion modules can be set up to meet the power requirements. However, when there are multiple power conversion modules, the power of different power conversion modules will vary due to different connection positions. If the difference is large, it will affect the lifespan of the power conversion modules. Utility Model Content
[0003] In view of the above problems, this utility model proposes a power configuration circuit, a splicing lighting device, and a system.
[0004] In a first aspect, embodiments of this application provide a power configuration circuit applied to a video wall lighting device, the video wall lighting device including load lamp blocks, the power configuration circuit including: at least two power conversion modules, a signal acquisition module, an integration module, and a control module, the power conversion modules being used to connect to corresponding input power supplies; the power conversion modules being used to convert the connected input power supplies into power supplies and output them; the signal acquisition module being electrically connected to at least two power conversion modules, the signal acquisition module being used to acquire the power supplies output by the power conversion modules and generate corresponding power acquisition signals; the integration module being electrically connected to at least two power conversion modules respectively; the control module being electrically connected to the signal acquisition module and the integration module respectively; the control module being used to generate an integration control signal based on the power acquisition signals, so as to control the integration module to integrate multiple power supplies to generate an output signal.
[0005] Secondly, embodiments of this application also provide a splicing lighting device, including: the power configuration circuit described in the first aspect above and a load lamp block; the load lamp block is used to operate according to the output signal of the power configuration circuit.
[0006] Thirdly, embodiments of this application also provide a splicing lighting system, which includes: the splicing lighting device described in the second aspect above and at least two adapters, wherein the at least two adapters correspond one-to-one with at least two power conversion modules, and the adapters are connected between the input power supply and the corresponding power conversion module.
[0007] The technical solution provided by this utility model is applied to splicing lighting equipment, which includes load lamp blocks. The power configuration circuit includes at least two power conversion modules, an integration module, and a control module. The power conversion modules are used to connect to corresponding input power supplies and convert the input power supplies into output power supplies. The integration module is electrically connected to at least two power conversion modules. The control module is electrically connected to the integration module. The control module generates an integration control signal based on at least two power supplies to control the integration module to integrate multiple power supplies to generate an output signal. This reduces the output differences between different power conversion modules and improves the service life of the power conversion modules. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments and drawings obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0009] Figure 1 A schematic diagram of a power configuration circuit provided in an embodiment of this application is shown.
[0010] Figure 2 A schematic diagram of another power configuration circuit provided in an embodiment of this application is shown.
[0011] Figure 3 A schematic diagram of the structure of a signal acquisition module provided in an embodiment of this application is shown.
[0012] Figure 4 A schematic diagram of another power configuration circuit provided in an embodiment of this application is shown.
[0013] Figure 5 A schematic diagram of the structure of an integrated module provided in an embodiment of this application is shown.
[0014] Figure 6 A schematic diagram of another power configuration circuit provided in an embodiment of this application is shown.
[0015] Figure 7 A schematic diagram of the structure of a power conversion module provided in an embodiment of this application is shown.
[0016] Figure 8 A schematic diagram of another power configuration circuit provided in an embodiment of this application is shown.
[0017] Figure 9A schematic diagram of the structure of an indicator module provided in an embodiment of this application is shown.
[0018] Figure 10 A schematic diagram of the structure of a splicing lighting device provided in an embodiment of this application is shown.
[0019] Figure 11 A schematic diagram of a splicing lighting system provided in an embodiment of this application is shown. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0021] For modular products, when there are many loads, multiple power conversion modules can be set up to meet the power requirements. However, when there are multiple power conversion modules, the connection position of the power conversion modules will affect the actual output of the power conversion modules. When the output of different power conversion modules is unbalanced, it will affect the service life of the power conversion modules.
[0022] To address the aforementioned issues, the inventors have proposed a power configuration circuit, a video wall lighting device, and a lighting system as described in this application. The power configuration circuit is applied to the video wall lighting device, which includes load lamp blocks. The power configuration circuit comprises at least two power conversion modules, an integration module, and a control module. The power conversion modules are used to connect to corresponding input power supplies and convert the input power supplies into output power. The integration module is electrically connected to each of the at least two power conversion modules. The control module is electrically connected to the integration module. The control module generates an integration control signal based on the at least two power supplies to control the integration module to integrate multiple power supplies to generate an output signal. This reduces the output differences between different power conversion modules and improves the lifespan of the power conversion modules.
[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0024] Please see Figure 1 , Figure 1 A schematic diagram of a power configuration circuit provided in an embodiment of this application is shown, as follows: Figure 1 As shown, the power configuration circuit 100 provided in this embodiment includes: at least two power conversion modules 110 (as an example, Figure 1 The power conversion modules consist of two modules, namely a first power conversion module 110a and a second power conversion module 110b, an integration module 120, and a control module 130.
[0025] In the embodiments of this application, the power conversion module 110 is used to connect to the corresponding input power supply and is connected to the integration module 120. The power conversion module 110 is used to convert the connected input power supply into a power supply and output it. The power supply is used to provide the electrical energy required for the load lamp block to work.
[0026] In some implementations, the integration module 120 is electrically connected to at least two power conversion modules 110, and the integration module 120 is also electrically connected to the control module 130.
[0027] In embodiments of this application, the control module 130 is further configured to generate an integrated control signal based on the power supply output from at least two power conversion modules 110.
[0028] The control module 130 monitors the output of the power conversion module 110. When there are differences in the outputs of multiple power conversion modules 110, it can generate an integrated control signal to regulate the output of the power conversion module 110 to the load lamp block.
[0029] Specifically, the integration module 120 is used to receive the integration control signal and to integrate at least two power supplies according to the integration control signal to generate an output signal, thereby integrating the outputs of at least two power conversion modules 110 together for use by the load lamp block.
[0030] In some implementations, the integrated control signal is used to adjust the output duty cycle of the power supply. For example, the integrated control signal is a square wave signal. When the integrated control signal is high, the power supply outputs normally, and when the integrated control signal is low, the power supply stops outputting, thereby adjusting the actual electrical energy output by the power conversion module 110 to the load lamp block.
[0031] In some implementations, the control module 130 can wirelessly communicate with the power conversion module 110 to obtain power from the power conversion module 110.
[0032] In other implementations, to ensure signal stability, a dedicated signal acquisition module can be used to acquire power supply data. Please refer to [link / reference]. Figure 2 , Figure 2 A schematic diagram of another power configuration circuit 100 provided in an embodiment of this application is shown, as follows: Figure 2 As shown, the power configuration circuit 100 also includes a signal acquisition module 140. The signal acquisition module 140 is electrically connected to at least two power conversion modules 110. The signal acquisition module 140 is used to acquire the power supply output from the power conversion modules and generate corresponding power acquisition signals, thereby monitoring the output status of the power conversion modules 110.
[0033] In some implementations, the number of signal acquisition modules 140 may be one or more.
[0034] When there is only one signal acquisition module 140, the signal acquisition module 140 can acquire the power supply of multiple power conversion modules 110 and convert the power supply of multiple power conversion modules 110 into a power acquisition signal, that is, the power acquisition signal can include the information contained in multiple power supplies.
[0035] When there are multiple signal acquisition modules 140, each signal acquisition module 140 can correspond to one or more power acquisition modules 110, and acquire the power supply of the corresponding power acquisition module 110, and convert one or more power supplies into power acquisition signals, that is, the power acquisition signals can include the information contained in one or more power supplies.
[0036] It is understood that this application does not impose any restrictions on this, and the number of signal acquisition modules 140 and the power conversion modules 110 acquired can be set according to the actual application scenario.
[0037] In some implementations, the signal acquisition module 140 includes a power supply terminal and a signal output terminal; the power supply terminal is used to acquire the power supply of the corresponding power conversion module.
[0038] The signal output terminal is connected to the control module 130. The signal acquisition module 140 is used to generate a power acquisition signal based on the power supply and output the power acquisition signal through the signal output terminal.
[0039] It is understood that this application is not limited thereto, and the signal acquisition module 140 may also include other necessary components as needed.
[0040] In the embodiments of this application, the number of power terminals of the signal acquisition module 140 corresponds to the number of power conversion modules 110 it acquires. For example, if the signal acquisition module 140 acquires data from two power conversion modules 110, then the signal acquisition module 140 has two power terminals, each corresponding to one of the two power conversion modules 110. For example, if the signal acquisition module 140 acquires data from three power conversion modules 110, then the signal acquisition module 140 has three power terminals, each corresponding to one of the three power conversion modules 110.
[0041] In some implementations, the signal acquisition module 140 converts the acquired power supply into a power acquisition signal and outputs it through a signal output terminal. For example, the acquired power supply can be converted into a corresponding communication protocol signal according to the communication protocol used, such as an I2C communication protocol signal.
[0042] Please see Figure 3 , Figure 3 This paper shows a schematic diagram of the structure of a signal acquisition module 140 provided in an embodiment of this application. Figure 3 As shown, the signal acquisition module 140 includes two power supply terminals, namely the first power supply terminal IN1+ and the second power supply terminal IN2+. The signal acquisition module 140 also includes two signal output terminals, namely the first signal output terminal SDA and the second signal output terminal SCL. The signal acquisition module also includes a power supply terminal VDD and a ground terminal GND.
[0043] In the embodiments of this application, the first power supply terminal IN1+ of the signal acquisition module 140 is connected to the first power conversion module 110a and is used to acquire the first power supply V1 of the first power conversion module 110a; the second power supply terminal IN2+ of the signal acquisition module 140 is connected to the second power conversion module 110b and is used to acquire the second power supply V2 of the second power conversion module 110b. The signal acquisition module 140 converts the first power supply V1 and the second power supply V2 into I2C communication protocol signals S1 and S2, and outputs them through the first signal output terminal SDA and the second signal output terminal SCL.
[0044] Specifically, the signal acquisition module 140 monitors the voltage of the first power supply V1 through differential sampling and monitors the output current of the first power conversion module 110a through a current transformer. The signal acquisition module 140 also monitors the voltage of the second power supply V2 through differential sampling and monitors the output current of the second power conversion module 110b through a current transformer.
[0045] For modular products, there are various splicing methods, and different splicing methods correspond to different operating conditions. For example, modular products can be spliced to different lengths; the current is lower when splicing a long path, while the current is higher when splicing a short path. Loads typically operate under stable conditions, but the different currents corresponding to different splicing methods mean that the load cannot guarantee a suitable operating voltage under every splicing method. This leads to large fluctuations in the load's operating conditions, making it difficult to ensure normal operation under various conditions.
[0046] In the embodiments of this application, the splicing lighting device may include multiple load lamp blocks, and the multiple load lamp blocks may have various splicing methods. However, for the same power output, the working conditions of the load lamp blocks are different under different splicing methods, resulting in large fluctuations in the working conditions of the load lamp blocks.
[0047] To ensure the normal operation of the load lamp blocks under different splicing methods, the power configuration circuit provided in this application embodiment can also regulate the output of the power conversion module 110 through the control module 130.
[0048] In some implementations, such as Figure 4As shown, the control module 130 is also electrically connected to the power conversion module 110. The control module 130 can generate a conversion control signal based on the power acquisition signal. The conversion control signal regulates the power supply provided by the power conversion module 110. When the power conversion module 110 receives the conversion control signal from the control module 130, it converts the voltage of the power supply and adjusts the voltage of the power supply to match the current working conditions, thereby providing matching working conditions for load lamp blocks with various splicing methods and ensuring that the load lamp blocks can work stably under different splicing methods.
[0049] For example, different splicing methods correspond to different working conditions. The voltage of the power supply can be converted by the conversion control signal, so that the power conversion module 110 can provide a matching power supply to meet the usage requirements under different splicing methods.
[0050] For example, when there are many load lamps, the power provided by the original power conversion module 110 cannot meet the power requirements. Increasing the number of power conversion modules 110 can supplement this. However, when there are multiple power conversion modules 110, their power output varies depending on their connection position to the load lamps. This uneven power distribution among the power conversion modules 110 can affect their lifespan. For instance, in a power configuration circuit 100 including a first power conversion module 110a and a second power conversion module 110b, the first power conversion module 110a might be operating at near saturation, while the second power conversion module 110b is operating at almost a light load. Prolonged operation under this uneven power distribution will accelerate the aging of the first power conversion module 110a. In related technologies, this can be improved by increasing the number of load lamps, changing their splicing method, or adjusting the connection position of the power conversion modules 110. However, these methods limit the application of the load lamps and cannot meet user needs.
[0051] In some implementations, when the output differences of different power conversion modules 110 are large, the control module 130 can determine the output differences of the different power conversion modules 110 through the power supply of the power conversion modules 110, and regulate the output of the power conversion modules 110 by converting control signals. For example, if the output of the first power conversion module 110a is greater than the output of the second power conversion module 110b, the output of the first power conversion module 110a can be reduced and / or the output of the second power conversion module 110b can be increased by converting control signals, thereby controlling the output differences between the different power conversion modules 110 within the allowable error range and improving the service life of the power conversion modules 110.
[0052] It is understandable that the implementation of controlling the differences between different power conversion modules 110 by converting control signals and integrating control signals can be carried out simultaneously, individually, or in stages.
[0053] For example, the difference in output between different power conversion modules 110 can be controlled solely by a conversion control signal.
[0054] For example, the difference in output between different power conversion modules 110 can be controlled simply by adjusting the conversion control signal.
[0055] For example, the differences in output between different power conversion modules 110 can be controlled simultaneously by both conversion control signals and adjustment conversion control signals.
[0056] For example, when the difference is within a first range, a conversion control signal or an integrated control signal can be used to control the difference in outputs of different power conversion modules 110; when the difference is within a second range, another control method can be used; wherein the value of the first range is less than the value of the second range. For example, when the current difference between the output of the first power conversion module and the output of the second power conversion module is less than 0.5A, an integrated control signal is used for control; when the current difference between the output of the first power conversion module and the output of the second power conversion module is greater than or equal to 0.5A, a conversion control signal is used for control.
[0057] In some implementations, the control module 130 includes at least two first input terminals and at least two second input terminals, and the conversion control signal includes a boost control sub-signal and a buck control sub-signal.
[0058] The first input terminal is used to output the boost control sub-signal; the second input terminal is used to output the buck control sub-signal.
[0059] The power conversion module 110 includes a voltage input terminal, a boost terminal, a buck terminal, and a voltage output terminal. The voltage input terminal is used to connect to the corresponding input power supply; the boost terminal is used to connect to the corresponding first input terminal; the buck terminal is used to connect to the corresponding second input terminal; and the voltage output terminal is used to connect to the signal acquisition module.
[0060] The power conversion module 110 is used to boost the voltage of the power supply according to the corresponding boost control sub-signal, and output the boosted power supply through the voltage output terminal.
[0061] The power conversion module 110 is also used to step down the voltage of the power supply according to the corresponding step-down control sub-signal, and output the stepped-down power supply through the voltage output terminal.
[0062] It is understood that the number of first input terminals corresponds to the number of power conversion modules 110, with each first input terminal having a corresponding power conversion module 110. The number of second input terminals also corresponds to the number of power conversion modules 110, with each second input terminal having a corresponding power conversion module 110.
[0063] In some embodiments, the integration module 120 includes at least two integration input terminals, at least two adjustment input terminals, and an integration input terminal; wherein, the at least two integration input terminals correspond one-to-one with at least two power conversion modules 110, and the integration input terminal is connected to the corresponding power conversion module 110; the integration control signal includes at least two integration control sub-signals, and the at least two integration control sub-signals correspond one-to-one with at least two power conversion modules 110; the at least two adjustment input terminals correspond one-to-one with at least two power conversion modules 110; the integration module 120 is used to adjust the duty cycle corresponding to multiple power supplies according to the multiple integration control sub-signals, thereby integrating the multiple power supplies to obtain an output signal, and outputting the obtained output signal through the integration output terminal.
[0064] It is understood that the integration module 120 may also include other required components, which are not limited here.
[0065] Please see Figure 5 , Figure 5 This application provides a schematic diagram of the structure of an integrated module according to an embodiment of the present application. Figure 5 As shown, the integration module 120 includes two integration input terminals, two adjustment input terminals, and an integration output terminal VOZ, namely the first integration input terminal V1+ and the second integration input terminal V2+, and the two adjustment input terminals, namely the first adjustment input terminal CT1 and the second adjustment input terminal CT2.
[0066] In embodiments of this application, the integration module 120 further includes a ground terminal GND.
[0067] In the embodiments of this application, the integration module 120 receives a first power supply V1 from the first power module 110a and a second power supply V2 from the second power module 110b, and receives a first integrated control sub-signal T1 for adjusting the first power supply V1 and a second integrated control sub-signal T2 for adjusting the second power supply V2.
[0068] The first integrated control sub-signal T1 is used to adjust the duty cycle of the first power supply V1, and the second integrated control sub-signal T2 is used to adjust the duty cycle of the second power supply V2.
[0069] By adjusting the duty cycle of the first integrated control sub-signal T1 and the duty cycle of the second integrated control sub-signal T2, the difference between the two signals in the output signal Voz is controlled within a preset range.
[0070] Please see Figure 6 , Figure 6 A schematic diagram of another power configuration circuit provided in an embodiment of this application is shown, as follows: Figure 6 As shown, the power conversion module 110 includes: a voltage conversion unit 111, an input filtering unit 112 and / or an output filtering unit 113.
[0071] The voltage conversion unit 111 is used to connect to the corresponding input power supply to obtain power. The voltage conversion unit 111 is connected to the control module 130. The voltage conversion unit 111 receives the power supply and, upon receiving a conversion control signal from the control module 130, converts the voltage of the power supply. For example, it can increase or decrease the voltage of the power supply, or it can remain unchanged, i.e., maintain the voltage of the power supply.
[0072] The voltage conversion unit 111 may employ boost and / or buck circuits.
[0073] The input filtering unit 112 is connected between the input power supply and the voltage conversion unit 111. This effectively filters out stray signals and noise from the input power supply, improving the purity of the power supply and preventing interference from external signals.
[0074] The output filter unit 113 is connected to the voltage conversion unit 111, which can effectively remove noise and interference in the power supply and improve the stability and reliability of the system.
[0075] Optionally, the input filtering unit 112 and / or the output filtering unit 113 may be composed of components such as capacitors and inductors. The specific configuration can be made according to actual usage needs, and this application does not impose any restrictions on this.
[0076] Please see Figure 7 , Figure 7 This paper shows a schematic diagram of the structure of a power conversion module 110 provided in an embodiment of this application, as shown below. Figure 7 As shown, the power conversion module 110 includes: a voltage conversion unit U2, an input filtering unit, and an output filtering unit.
[0077] The voltage conversion unit U2 includes a voltage input terminal VIN, a boost terminal BOOST_EN, a buck terminal BUCK_EN, and a voltage output terminal VO.
[0078] The input filtering unit is used to filter the power supply VIN1, the voltage input terminal VIN is used to receive the power supply VIN1, the boost terminal BOOST_EN of the power conversion module 110 is used to receive the boost control sub-signal EN10 of the control module 130, and the buck terminal BUCK_EN of the voltage conversion unit U2 is used to receive the buck control sub-signal EN11 of the control module 130.
[0079] The voltage conversion unit U2 converts the input power supply to obtain the power supply based on the level of the boost control sub-signal EN10 and the buck control sub-signal EN11.
[0080] In some implementations, when EN10 and EN11 are high, the voltage conversion unit U2 does not adjust the voltage of the input power supply, that is, it outputs a 24V power supply.
[0081] In some implementations, when EN10 is high and EN11 is low, the voltage conversion unit U2 boosts the voltage of the input power supply, for example, boosting the 24V input power supply to a 36V (1.5A) power supply V1.
[0082] In some implementations, when EN10 is low and EN11 is high, the voltage conversion unit U2 reduces the voltage of the input power supply, for example, by stepping down the 24V input power supply to a 12V (5A) power supply V1.
[0083] In some implementations, the input filtering unit includes a first capacitor EC2 and a second capacitor C2. Optionally, the first capacitor EC2 can be an electrolytic capacitor, and the second capacitor C2 can be a ceramic capacitor. The specific configuration can be determined according to actual usage requirements, and this application does not impose any limitations on this.
[0084] In some implementations, the output filtering unit includes a third capacitor EC1 and a fourth capacitor C2. Optionally, the third capacitor EC3 can be an electrolytic capacitor, and the fourth capacitor C2 can be a ceramic capacitor. The specific configuration can be determined according to actual usage requirements, and this application does not impose any limitations on this.
[0085] Please see Figure 8 , Figure 8 A schematic diagram of another power configuration circuit provided in an embodiment of this application is shown, as follows: Figure 8 As shown, the power configuration circuit provided in this application embodiment also includes an indicator module 150.
[0086] The indicator module 150 is connected to the control module 130. The control module is also used to determine the indicator signal based on the power supply. The indicator module 150 is used to operate according to the indicator signal.
[0087] In some implementations, if the control module 130 determines, based on the power supply provided by the power conversion module 110, that the power supply meets the operating conditions required for the current splicing method, then the control module 130 generates a first indicator sub-signal, and the indicator module 150 provides an indication based on the first indicator sub-signal to remind the user that the current operation is normal. If the control module 130 determines, based on the power supply provided by the power conversion module 110, that the power supply cannot meet the power requirements, then the control module 130 generates a second indicator sub-signal, and the indicator module 150 provides an indication based on the second indicator sub-signal to remind the user that the current power conversion module 110 can no longer meet the power requirements and that a new power conversion module 110 needs to be added.
[0088] The indicator module 150 can use one or more indicator methods such as sound indication, light indication, and screen indication, which can be set according to actual usage needs.
[0089] For example, the indicator module 150 includes an indicator light. When the control module 130 detects that the voltage of the current power supply is lower than 3V and the current is close to 3A, it indicates that the current power conversion module can no longer meet the power requirements. The indicator light turns red to remind the user that a new power conversion module needs to be added.
[0090] In some embodiments, the indicating module 150 includes a first indicating terminal and a second indicating terminal, and the control module further includes a first control terminal and a second control terminal; the first indicating terminal is connected to the first control terminal, and the second indicating terminal is connected to the second control terminal. The first control terminal is used to output a first indicating sub-signal, and the second control terminal is used to receive a second indicating sub-signal.
[0091] For example, if the control module 130 determines that the power supply meets the working conditions required for the current splicing method based on the power supply provided by the power conversion module 110, the control module 130 generates a first indicator sub-signal and outputs it through the first control terminal. The first indicator terminal of the indicator module 150 receives the first indicator sub-signal and displays it in green according to the first indicator sub-signal to remind the user that the current use is normal.
[0092] For example, if the control module 130 determines that the power supply provided by the power conversion module 110 cannot meet the power requirements, the control module 130 generates a second indicator sub-signal and outputs it through the second control terminal. The second indicator terminal of the indicator module 150 receives the second indicator sub-signal and displays red according to the second indicator sub-signal to remind the user that the current power conversion module 110 can no longer meet the power requirements and that a new power conversion module 110 needs to be added.
[0093] Please see Figure 9 , Figure 9 This paper shows a schematic diagram of the structure of an indicator module 150 according to an embodiment of the present application. Figure 9 As shown, the indicator module 150 provided in this application embodiment includes a first indicator terminal G and a second indicator terminal R. The indicator module 150 also includes a green light-emitting diode and a red light-emitting diode. The first indicator terminal G is connected to the positive input terminal of the green light-emitting diode, and the second indicator terminal R is connected to the positive input terminal of the red light-emitting diode.
[0094] The control module 130 can be an MCU (Microcontroller Unit). The control module 130 includes a first control terminal GPIO8, a second control terminal GPIO7, two first input terminals GPIO0 and GPIO2, two second input terminals GPIO1 and GPIO4, two third terminals GPIO3 and GPIO4, and two acquisition terminals GPIO10 and GPIO9.
[0095] When the first control terminal GPIO8 outputs a high level, the green LED of the indicator module 150 is turned on and illuminates. When the second control terminal GPIO7 outputs a high level, the red LED of the indicator module 150 is turned on and illuminates. The first input terminal GPIO0 and the second input terminal GPIO1 correspond to the first power conversion module 110a. The first input terminal GPIO0 is used to output the boost control sub-signal EN10 for controlling the first power conversion module 110a, and the second input terminal GPIO1 is used to output the buck control sub-signal EN11 for controlling the first power conversion module 110a. The first input terminal GPIO1 and the second input terminal GPIO2 correspond to the second power conversion module 110b. The first input terminal GPIO1 is used to output the boost control sub-signal EN20 for controlling the second power conversion module 110b, and the second input terminal GPIO3 is used to output the buck control sub-signal EN22 for controlling the second power conversion module 110b. The third terminal GPIO3 is used to output the integrated control sub-signal CT1, which controls the duty cycle of the power supply of the first power conversion module 110a. The third terminal GPIO4 is used to output the integrated control sub-signal CT2, which controls the duty cycle of the power supply of the second power conversion module 110b. The acquisition terminal GPIO10 is used to acquire the power acquisition signals SDA and SCL acquired by the signal acquisition module 140.
[0096] It is understood that this application is not limited thereto, and the control module 130 may also include other components required for operation, such as power supply terminal VDD, current limiting resistor, etc., and this application does not limit them.
[0097] Please see Figure 10 , Figure 10 This application provides a schematic diagram of the structure of a splicing lighting device according to an embodiment. Figure 10As shown, the splicing lighting device 200 includes the power configuration circuit 100 and the load lamp block 210 described in the above embodiment; the load lamp block 210 is used to operate according to the output signal of the power configuration circuit 100.
[0098] The number of load lamp blocks 210 can be one or more. The power configuration circuit 100 can provide stable working conditions for the load lamp blocks 210 according to different splicing methods, ensuring that the load lamp blocks 210 can work normally.
[0099] Please see Figure 11 , Figure 11 A schematic diagram of the structure of a lighting system provided in an embodiment of this application is shown, such as... Figure 11 As shown, the lighting system 300 may include the modular lighting device 200 described in the above embodiment and at least two adapters 310; the at least two adapters correspond one-to-one with at least two power conversion modules 110, and the adapters are connected between the input power supply and the corresponding power conversion module 110.
[0100] For example, the adapter can be used to provide an input signal with 24V and 3A power.
[0101] In summary, the embodiments of this application provide a power configuration circuit, a video wall lighting device, and a lighting system. The power configuration circuit is applied to the video wall lighting device, which includes load lamp blocks. The power configuration circuit includes at least two power conversion modules, an integration module, and a control module. The power conversion modules are used to connect to corresponding input power supplies and convert the input power supplies into output power. The integration module is electrically connected to at least two power conversion modules. The control module is electrically connected to the integration module. The control module generates an integration control signal based on the at least two power supplies to control the integration module to integrate multiple power supplies to generate an output signal. This reduces the output differences between different power conversion modules and improves the service life of the power conversion modules.
[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A power configuration circuit applied to a video wall lighting device, the video wall lighting device comprising load lamp blocks, characterized in that, The power configuration circuit includes: At least two power conversion modules are provided, wherein the power conversion modules are used to connect to corresponding input power sources; and the power conversion modules are used to convert the connected input power sources into power supplies and then output them. An integration module, wherein the integration module is electrically connected to each of the at least two power conversion modules; A control module is electrically connected to the integration module. The control module is used to generate an integration control signal based on the power supply output from the at least two power conversion modules, so as to control the integration module to integrate the multiple power supplies to generate an output signal.
2. The power configuration circuit according to claim 1, characterized in that, The power configuration circuit further includes: a signal acquisition module; the signal acquisition module is electrically connected to the at least two power conversion modules, and the signal acquisition module is used to acquire the power supply output by the power conversion modules and generate a corresponding power acquisition signal; The control module is electrically connected to the signal acquisition module. The control module is used to generate an integrated control signal based on the power acquisition signal, so as to control the integration module to integrate the multiple power supplies to generate an output signal.
3. The power configuration circuit according to claim 2, characterized in that, The control module is also used to generate a corresponding conversion control signal based on the power supply output by the power conversion module, so as to control the corresponding power conversion module to adjust the output power supply.
4. The power configuration circuit according to claim 3, characterized in that, The power conversion module includes: a voltage conversion unit, an input filtering unit, and / or an output filtering unit; The voltage conversion unit is used to convert the input power supply into a power supply and then output it; it is also used to adjust the output power supply when the conversion control signal is received. The input filtering unit is connected between the input power supply and the voltage conversion unit; The output filtering unit is connected between the voltage conversion unit and the signal acquisition module.
5. The power configuration circuit according to claim 3, characterized in that, The control module includes at least two first input terminals and at least two second input terminals; The at least two first input terminals correspond one-to-one with the at least two power conversion modules, and the at least two second input terminals correspond one-to-one with the at least two power conversion modules; The conversion control signal includes a boost control sub-signal and a buck control sub-signal; the first input terminal is used to output the boost control sub-signal; the second input terminal is used to output the buck control sub-signal. The power conversion module includes a voltage input terminal, a boost terminal, a buck terminal, and a voltage output terminal. The voltage input terminal is used to connect to the corresponding input power supply; the boost terminal is used to connect to the corresponding first input terminal; the buck terminal is used to connect to the corresponding second input terminal; and the voltage output terminal is used to connect to the signal acquisition module. The power conversion module is used to boost the voltage of the power supply according to the corresponding boost control sub-signal, and output the boosted power supply through the voltage output terminal; The power conversion module is also used to step down the voltage of the power supply according to the corresponding step-down control sub-signal, and output the stepped-down power supply through the voltage output terminal.
6. The power configuration circuit according to claim 2, characterized in that, The signal acquisition module includes a power supply terminal and a signal output terminal; the power supply terminal is used to acquire the power supply output by the power conversion module; the signal output terminal is connected to the control module, and the signal acquisition module is used to generate a power acquisition signal based on the power supply and output the power acquisition signal through the signal output terminal.
7. The power configuration circuit according to claim 1, characterized in that, The integrated module includes at least two integrated input terminals, at least two adjustment input terminals, and an integrated output terminal; wherein, the at least two integrated input terminals correspond one-to-one with the at least two power conversion modules, and the integrated input terminals are connected to the corresponding power conversion modules; The integrated control signal includes at least two integrated control sub-signals, and the at least two integrated control sub-signals correspond one-to-one with the at least two power conversion modules; Each of the at least two adjustment input terminals corresponds to one of the at least two power conversion modules; The integration module is used to adjust the duty cycle of the at least two power supplies according to the at least two integration control sub-signals, thereby integrating the at least two power supplies to obtain the output signal, and outputting the output signal through the integration output terminal.
8. The power configuration circuit according to any one of claims 1 to 7, characterized in that, The power configuration circuit further includes an indicator module; the indicator module is connected to the control module, and the control module is further configured to determine an indicator signal based on the power supply; the indicator module is configured to operate according to the indicator signal.
9. A modular lighting device, characterized in that, include: The power configuration circuit and load lamp block according to any one of claims 1 to 8; The load lamp block is used to operate according to the output signal of the power configuration circuit.
10. A modular lighting system, characterized in that, It includes the splicing lighting device as described in claim 9 and at least two adapters, wherein each of the at least two adapters corresponds to at least two power conversion modules, and the adapters are connected between the input power supply and the corresponding power conversion module.