阅读说明：本技术 基于双总线控制的灯具电源及照明系统 (Lamp power supply and lighting system based on double-bus control ) 是由 朱广传 韩全辉 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种基于双总线控制的灯具电源及照明系统,所述灯具电源包括用于提供交流电的输入模块、用于将交流电转化为直流电的整流模块、用于控制负载驱动的驱动模块、用于检测整流模块所输出的总线电压的检测模块、用于传输配置控制信息的数据传输模块以及控制模块；其中当检测模块检测到总线电压小于第一预设电压时,控制模块发送开启信号至数据传输模块,以接收数据传输模块所提供的配置控制信息；检测模块和数据传输模块通过各自的接线连接至双总线,使得检测模块和数据传输模块均与整流模块连接。所述灯具电源通过火线零线双线以实现直接给灯具配置控制信息,无需额外配置信号线,从而简化结构,并降低成本。(The invention discloses a lamp power supply and a lighting system based on double-bus control, wherein the lamp power supply comprises an input module for providing alternating current, a rectifying module for converting the alternating current into direct current, a driving module for controlling load driving, a detecting module for detecting bus voltage output by the rectifying module, a data transmission module for transmitting configuration control information and a control module; when the detection module detects that the bus voltage is smaller than a first preset voltage, the control module sends a starting signal to the data transmission module so as to receive configuration control information provided by the data transmission module; the detection module and the data transmission module are connected to the double buses through respective connecting wires, so that the detection module and the data transmission module are both connected with the rectification module. The lamp power supply realizes direct configuration of control information for the lamp through the live wire, the zero wire and the double wires without additionally configuring a signal wire, thereby simplifying the structure and reducing the cost.)

1. A lamp power supply based on dual-bus control comprises an input module for providing alternating current, a rectifying module for converting the input alternating current into direct current, and a driving module for controlling the driving of a load, wherein the input module, the rectifying module and the driving module are connected through dual buses, and the lamp power supply further comprises:

the detection module is used for acquiring and detecting the bus voltage output by the rectification module;

the data transmission module is used for transmitting configuration control information;

the control module is used for sending a starting signal to the data transmission module to receive the configuration control information provided by the data transmission module when the detection module detects that the bus voltage is smaller than a first preset voltage;

the detection module and the data transmission module are respectively and correspondingly connected to the double buses through respective connecting wires, so that the detection module and the data transmission module are both connected with the rectification module.

2. The luminaire power supply of claim 1 wherein said data transmission module defaults to an off state.

3. The luminaire power supply of claim 1 wherein the control module is attachable to or detachable from the drive module arrangement.

4. The lamp power supply of claim 1 further comprising a filtering module disposed between the input module and the rectifying module for filtering the alternating current.

5. The lamp power supply of claim 1, further comprising a power factor correction module disposed between the rectifier module and the driver module for adjusting the power factor received by the driver module.

6. The lamp power supply of claim 1 further comprising a power supply module connected to the dual bus by respective wiring such that the power supply module is connected to the rectification module; the power supply module is used for adjusting the bus voltage provided by the rectifying module into a power supply voltage so as to supply power to the control module.

7. The lamp power supply of claim 1, wherein the control module is further configured to send a shutdown signal to the data transmission module to turn the data transmission module to a shutdown state when the detection module detects that the bus voltage is greater than or equal to a first preset voltage.

8. The lamp power supply of claim 1, wherein the control module is further configured to send a control signal to the driving module according to the configuration control information after receiving the configuration control information provided by the data transmission module, so that the driving module drives a load in an output module in response to the control signal, wherein the output module is connected to the driving module through a dual bus.

9. The luminaire power supply of claim 1, wherein the control module comprises: the circuit comprises a microcontroller, a first voltage regulator tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first switch tube, a second switch tube and a first capacitor; the first end of the first voltage-stabilizing tube is connected with the input end of the control module, and the second end of the first voltage-stabilizing tube is respectively connected with the first end of the first resistor and the first end of the third resistor; the second end of the first resistor is respectively connected with the first end of the second resistor and the first pin of the microcontroller; the first end of the second resistor is connected with a first pin of the microcontroller, and the second end of the second resistor is grounded; the second end of the third resistor is respectively connected with the control end of the first switch tube and the first end of the fourth resistor; the first end of the fourth resistor is connected with the control end of the first switching tube, and the second end of the fourth resistor is grounded; the first end of the first switch tube is respectively connected with the first end of the sixth resistor and the control end of the second switch tube, and the second end of the first switch tube is grounded; a first end of the sixth resistor is connected with a control end of the second switching tube, and a second end of the sixth resistor is connected with a second pin of the microcontroller; the first end of the second switching tube is connected with the first end of the fifth resistor, and the second end of the second switching tube is connected with the first end of the seventh resistor; the second end of the fifth resistor is connected with the input end of the control module; a second end of the seventh resistor is grounded; and a seventh pin of the microcontroller is grounded, an eighth pin of the microcontroller is connected with the first end of the first capacitor, and the second end of the first capacitor is grounded.

10. The lamp power supply of claim 1, further comprising a program data module connected to the dual bus, the program data module comprising circuitry having a burner for performing a burning program operation on a plurality of microcontrollers via a broadcast protocol, wherein each microcontroller is integrated into a respective driver of the driver module.

11. A lighting system comprising the lamp power supply of any one of claims 1-10 and a lamp connected to the lamp power supply.

Technical Field

The invention relates to the technical field of power supplies, in particular to a lamp power supply and a lighting system based on double-bus control.

Background

The current market for lighting power supplies, which are mostly constant current output, has the advantages of relatively simple electronic aspects and relatively low cost. However, when the output Light Emitting Diode (LED) lamp is fixed, parameters such as power and brightness of the entire lamp cannot be changed. If different requirements are made on parameters such as power and brightness of the whole lamp, methods such as purchasing and replacing other lamps and power supplies are needed. In order to meet different requirements, lamps with adjustable light are also provided; or control information can be configured for the lamp to adjust the electronic parameters to realize products with different requirements. Of course, products with adjustable light have relatively high cost; and the lamp can be configured with control information to adjust the electronic parameters to realize products with different requirements of different customers, and the relative cost is between that of a conventional product and a dimmable product.

As shown in fig. 1, when configuring control information/data for a lamp, a conventional product electronic architecture 100 needs to additionally configure (or introduce) two separate information/data lines (which are only used for configuring control information) for the lamp, and a controller configures control information/data for the lamp electronically through the two information/data lines.

As shown in fig. 1, two separate lines for configuring control information to a lamp are only used when control information/data is configured to the lamp, but are not used at other times, and the utilization rate is low; moreover, there is a risk that production adaptation and field installation personnel will confuse the input lines, output lines and configuration lines (that is, the more the power outlets, the more confusion the production adaptation and field installation personnel will easily occur); in addition, the method also increases workload (for example, in order to avoid the two configuration control signal lines or the two configuration control signal lines and other lines such as the input line/the output line from colliding with each other, protective measures such as binding need to be completed); if the lamp is a product with a high waterproof grade, the more ports, the greater difficulty and risk are brought to the waterproof performance of the product.

Therefore, there is a need to address the problems of the prior art.

Disclosure of Invention

The invention aims to provide a lamp power supply and a lighting system based on double-bus control, which aim to directly configure control information/data for a lamp through a live wire/zero wire (namely L/N) double wire without additionally configuring (or introducing) two signal/data wires, thereby simplifying the structure of the whole lamp power supply, reducing the cost, reducing the workload of production personnel (namely improving the generation rate) and reducing the workload of field installation personnel.

According to a first aspect of the present invention, an embodiment of the present invention provides a dual-bus control-based lamp power supply, including an input module for providing an alternating current, a rectifying module for converting the input alternating current into a direct current, and a driving module for controlling driving of a load, where the input module, the rectifying module, and the driving module are connected by a dual bus, and the lamp power supply further includes: the detection module is used for acquiring and detecting the bus voltage output by the rectification module; the data transmission module is used for transmitting configuration control information; the control module is used for sending a starting signal to the data transmission module to receive the configuration control information provided by the data transmission module when the detection module detects that the bus voltage is smaller than a first preset voltage; the detection module and the data transmission module are respectively and correspondingly connected to the double buses through respective connecting wires, so that the detection module and the data transmission module are both connected with the rectification module.

Optionally, the data transmission module defaults to an off state.

Alternatively, the control module may be arranged attached to the drive module or arranged separately from the drive module.

Optionally, the lamp power supply further includes a filtering module, and the filtering module is disposed between the input module and the rectifying module and is configured to filter an alternating current.

Optionally, the lamp power supply further includes a power factor correction module, where the power factor correction module is disposed between the rectification module and the driving module, and is configured to adjust the power factor received by the driving module.

Optionally, the lamp power supply further comprises a power supply module, the power supply module is connected to the dual bus through a corresponding connection wire, so that the power supply module is connected with the rectification module; the power supply module is used for adjusting the bus voltage provided by the rectifying module into a power supply voltage so as to supply power to the control module.

Optionally, the control module is further configured to send a shutdown signal to the data transmission module when the detection module detects that the bus voltage is greater than or equal to a first preset voltage, so that the data transmission module enters a shutdown state.

Optionally, the control module is further configured to send a control signal to the driving module according to the configuration control information after receiving the configuration control information provided by the data transmission module, so that the driving module drives a load in an output module in response to the control signal, where the output module is connected to the driving module through a dual bus.

Optionally, the control module comprises: the circuit comprises a microcontroller, a first voltage regulator tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first switch tube, a second switch tube and a first capacitor; the first end of the first voltage-stabilizing tube is connected with the input end of the control module, and the second end of the first voltage-stabilizing tube is respectively connected with the first end of the first resistor and the first end of the third resistor; the second end of the first resistor is respectively connected with the first end of the second resistor and the first pin of the microcontroller; the first end of the second resistor is connected with a first pin of the microcontroller, and the second end of the second resistor is grounded; the second end of the third resistor is respectively connected with the control end of the first switch tube and the first end of the fourth resistor; the first end of the fourth resistor is connected with the control end of the first switching tube, and the second end of the fourth resistor is grounded; the first end of the first switch tube is respectively connected with the first end of the sixth resistor and the control end of the second switch tube, and the second end of the first switch tube is grounded; a first end of the sixth resistor is connected with a control end of the second switching tube, and a second end of the sixth resistor is connected with a second pin of the microcontroller; the first end of the second switching tube is connected with the first end of the fifth resistor, and the second end of the second switching tube is connected with the first end of the seventh resistor; the second end of the fifth resistor is connected with the input end of the control module; a second end of the seventh resistor is grounded; and a seventh pin of the microcontroller is grounded, an eighth pin of the microcontroller is connected with the first end of the first capacitor, and the second end of the first capacitor is grounded.

Optionally, the lamp power supply further includes a program data module connected to the dual bus, where the program data module includes a circuit having a burner, and the burner is configured to execute a burning program operation on the plurality of microcontrollers through a broadcast protocol, where each microcontroller is integrated in a corresponding driver of the driving module.

According to another aspect of the present invention, an embodiment of the present invention provides a lighting system, which includes the lamp power supply according to any embodiment of the present invention and a lamp connected to the lamp power supply.

The lamp power supply based on the double-bus control realizes direct configuration of control information/data for lamps, products or equipment through a live wire, a zero wire (namely L/N) and double wires without additionally configuring (or introducing) two signals/data wires, thereby simplifying the structure, reducing the safety risk, reducing wires, reducing the risk of wrong wire connection and reducing the workload of production personnel and field installation personnel. The same is true for the illumination system according to the embodiment of the present invention.

Drawings

The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.

Fig. 1 is a schematic diagram of a conventional lamp power supply.

Fig. 2 is a schematic diagram of a lamp power supply based on dual bus control according to an embodiment of the present invention.

Fig. 3 is a schematic wiring diagram of a lamp power supply based on dual bus control when configuring control information according to the embodiment of the present invention.

Fig. 4 is a schematic wiring diagram of a lamp power supply based on dual bus control in a normal operation according to the embodiment of the present invention.

Fig. 5 is a circuit connection diagram of the control module shown in fig. 2.

Fig. 6 is a schematic diagram of a lamp power supply based on dual bus control according to another embodiment of the present invention.

Fig. 7 is an architecture diagram of an illumination system according to an embodiment of the invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first", "second" and "first" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

Fig. 2 is a schematic diagram of a lamp power supply based on dual bus control according to an embodiment of the present invention. Fig. 3 is a schematic wiring diagram of a lamp power supply based on dual bus control when configuring control information according to the embodiment of the present invention. Fig. 4 is a schematic wiring diagram of a lamp power supply based on dual bus control in a normal operation according to the embodiment of the present invention.

Referring to fig. 2 to 4, an embodiment of the present invention provides a dual-bus control-based lamp power supply 200, which includes an input module 210 for providing an alternating current, a rectifying module 230 for converting the input alternating current into a direct current, and a driving module 250 for controlling driving of a load, where the input module 210, the rectifying module 230, and the driving module 250 are connected by a dual bus 500, and the lamp power supply 200 further includes: a detection module 280, configured to obtain and detect the bus voltage output by the rectification module 230; a data transmission module 300 for transmitting configuration control information; a control module 260, configured to send a start signal to the data transmission module 300 to receive configuration control information provided by the data transmission module 300 when the detection module 280 detects that the bus voltage is smaller than a first preset voltage; wherein the detection module 280 and the data transmission module 300 are respectively connected to the dual bus 500 through respective wires (510, 530 shown in fig. 2), so that both the detection module 280 and the data transmission module 300 are connected to the rectification module 230.

It should be noted that the dual bus 500 described herein refers to a hot wire and neutral wire (L/N) dual bus, and the configuration control data line is a short for both a connection line for configuration control information and a connection line for configuration control data, that is, the line may transmit the configured control information and may also transmit the configured control data, which is the same as below.

The lamp power supply 200 based on the dual-bus control realizes the direct configuration of control information/data for lamps, products or equipment through a live wire/zero wire (namely L/N) dual wire without additionally configuring (or introducing) two signal/data wires, thereby simplifying the structure, reducing the safety risk, reducing wires, reducing the risk of wrong wire connection and lightening the workload of production personnel and field installation personnel.

The dual bus control based luminaire power supply 200 will be further described below in conjunction with the accompanying drawings.

Specifically, the input module 210 is used for providing alternating current. The rectifying module 230 may include a rectifying circuit 231 for converting the input ac power into dc power and providing a bus voltage for the detection module 280, the power supply module 290 and the data transmission module 300, which are described below. The drive module 250 may include a drive PWM (pulse width modulation) circuit for modulating by the width of a series of pulses to equivalently obtain a desired waveform (including shape and amplitude) to control load driving. The input module 210, the rectifying module 230 and the driving module 250 are connected by a dual bus 500. The dual bus 500, in which the input module 210 is connected between the rectifier modules 230, may also be referred to as a main electrical input line.

In some embodiments, a filtering module 220 is further disposed between the input module 210 and the rectifying module 230, and the filtering module 220 is connected to the input module 210 and the rectifying module 230 through a dual bus 500. The filtering module 220 may include a filtering circuit 221 for filtering the alternating current.

In some embodiments, a power factor correction module 240 is further disposed between the rectification module 230 and the driving module 250, and the power factor correction module 240 is respectively connected to the rectification module 230 and the driving module 250 through a dual bus 500. The power factor correction module 240 includes a power factor correction circuit 241 for adjusting the power factor PF received by the driving module 250.

In this embodiment, the luminaire power supply 200 further includes a power supply module 290, and the power supply module 290 is connected to the dual bus 500 through corresponding connection wires, so that the power supply module 290 is connected with the rectification module 230. In other words, the power supply module 290 is connected to the rectifier module 230 via a connection 520 (corresponding to a bus) leading from the dual bus 500. The power supply module 290 may include a power supply circuit 291 for adjusting the bus voltage provided by the rectifying module 230 to a supply voltage to supply power to the control module 260.

With continued reference to fig. 2-4, the lamp power supply 200 further includes: a detection module 280 and a data transmission module 300. The detection module 280 may include a detection circuit 281 for acquiring and detecting the bus voltage output by the rectification module 230. The data transmission module 300 may include a data transmission control circuit 301 for transmitting configuration control information.

The detection module 280 and the data transmission module 300 are respectively connected to the dual bus 500 through respective connection wires, so that both the detection module 280 and the data transmission module 300 are connected to the rectification module 230. In other words, the detection module 280 is connected to the rectification module 230 via a connection 510 (corresponding to a bus) leading from the dual bus 500. Similarly, the data transmission module 300 is connected to the rectifying module 230 via a connection 530 (corresponding to a bus) leading from the dual bus 500. Because the dual bus 500 is an installed line, and the connection is easy to lead out from the dual bus 500, and the installation/connection is convenient, compared with the prior art in which a dedicated configuration control data line is provided, the lamp power supply 200 according to the present invention is designed in such a way, which can simplify the structure, reduce the safety risk, reduce the wire rods, reduce the risk of wrong connection, and reduce the workload of production personnel and field installation personnel.

As shown in fig. 2 to 4, the control module 260 is configured to send a start signal to the data transmission module 300 to receive the configuration control information provided by the data transmission module 300 when the detection module 280 detects that the bus voltage is smaller than a first preset voltage; the control module 260 is further configured to send a shutdown signal to the data transmission module 300 when the detection module 280 detects that the bus voltage is greater than or equal to a first preset voltage, so that the data transmission module 300 enters a shutdown state.

Specifically, the data transmission module 300 defaults to an off state. As shown in fig. 3, when the microcontroller 261 (or called micro control unit, or MCU) in the control module 260 detects that the bus voltage is smaller than the first set value through the detection module 280, the microcontroller 261 may send a start signal to the data transmission module 300 to start the data transmission control circuit 301, so that the data transmission control circuit 301 operates, and then the data transmission control circuit 301 may transmit configuration control information to the microcontroller 261, so that the microcontroller 261 may perform a configuration operation according to the configuration control information, which will be further described below. As shown in fig. 4, when the microcontroller 261 detects that the bus voltage is greater than or equal to the first set value through the detection module 280, the microcontroller 261 may send a shutdown signal (or a blank signal) to the data transmission module 300 to turn off the data transmission control circuit 301, and disconnect the line between the microcontroller 261 and the data transmission control circuit 301. After receiving the configuration control information provided by the data transmission module 300, the microcontroller 261 in the control module 260 sends a control signal to the driving module 250 according to the configuration control information, so that the driving module 250 drives the load in the output module 270 in response to the control signal, wherein the output module 270 is connected to the driving module 250 through the dual bus 500. Since the configuration control information can be customized according to different requirements, the microcontroller 261 controls the driving PWM circuit 251 in the driving module 250 according to the different configuration control information, so that the driving PWM circuit 251 can output corresponding output parameters when working together with the microcontroller 261, thereby being capable of meeting different requirements of different customers.

As described above, in the present embodiment, the first set value may be 9V, and in some other embodiments, the first set value may be other low voltage values, not limited to 9V. In this embodiment, the bus voltage greater than the first set value may be 36V, for example.

It should be noted that the control module 260 may be disposed in attachment with the driving module 250 or disposed separately from the driving module 250. In the present embodiment, the control module 260 is disposed in a manner attached to the driving module 250, that is, the two modules are integrated together to form a whole (as shown by the dotted line in fig. 2). Specifically, the microcontroller 261 in the control module 260 may be integrated into a driver (not shown) in the driving module 250, so that the area of the circuit layout may be saved, and the material cost may also be reduced.

Fig. 5 is a circuit connection diagram of the control module 260 shown in fig. 2.

Referring to fig. 5, in the present embodiment, the control module 260 may specifically include: the circuit comprises a microcontroller 261, a first voltage regulator tube ZD1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first switch tube Q1, a second switch tube Q2 and a first capacitor C1. A first end of the first regulator ZD1 is connected to an input end of the control module 260, and a second end of the first regulator ZD1 is connected to a first end of the first resistor R1 and a first end of the third resistor R3, respectively. The second end of the first resistor R1 is connected to the first end of the second resistor R2 and the first pin of the microcontroller 261, respectively. A first terminal of the second resistor R2 is connected to the first pin of the microcontroller 261, and a second terminal of the second resistor R2 is grounded to GND. A second end of the third resistor R3 is connected to the control end of the first switch Q1 and the first end of the fourth resistor R4, respectively. A first end of the fourth resistor R4 is connected to the control end of the first switch Q1, and a second end of the fourth resistor R4 is grounded to GND. A first end of the first switch Q1 is connected to a first end of the sixth resistor R6 and a control end of the second switch Q2, respectively, and a second end of the first switch Q1 is grounded to GND. A first end of the sixth resistor R6 is connected to the control end of the second switch Q2, and a second end of the sixth resistor R6 is connected to the second pin of the microcontroller 261. A first terminal of the second switch Q2 is connected to a first terminal of the fifth resistor R5, and a second terminal of the second switch Q2 is connected to a first terminal of the seventh resistor R7. A second terminal of the fifth resistor R5 is coupled to an input terminal of the control module 260. The second end of the seventh resistor R7 is grounded GND. A seventh pin of the microcontroller 261 is grounded to GND, an eighth pin of the microcontroller 261 is connected to the first end of the first capacitor C1, and the second end of the first capacitor C1 is grounded to GND.

In the above circuit, the first zener ZD1 is used to protect the microcontroller 261. The first resistor R1 and the second resistor R2 may divide the bus voltage to obtain a TTL level signal, and provide the TTL level signal to a first pin (i.e., a receiving pin, such as the P34 pin shown in fig. 5, for receiving the sRXD signal) of the microcontroller 261. Wherein, TTL (transistor-transistor logic) level signals are represented in binary, for example, low level signals correspond to logic "0" signals, and high level signals correspond to logic "1" signals.

Further, when the microcontroller 261 of the control module 260 detects that the bus voltage is less than the first set value, the microcontroller 261 may send an on signal to the data transmission module 300, so that the data transmission control circuit 301 enters an on state. Then, when a high level signal is input through the bus, for example, 36V, the potential of the common node of the third resistor R3 and the fourth resistor R4 is higher, so that the first switch Q1 enters a conducting state, and at this time, conduction is formed between the second pin of the microcontroller 261 (the second pin is a transmitting pin, such as the P35 pin shown in fig. 5, which is used for transmitting an sxtd signal), the sixth resistor R6 and the first switch Q1, which is equivalent to control through the first switch Q1, and the potential of the first pin of the microcontroller 261 (the first pin is a receiving pin) changes from a low potential to a high potential (i.e., from "0" to "1"), so that configuration control information/data can be transmitted to the microcontroller 261 through the bus. When the bus voltage is controlled to be pulled low, that is, a low level signal is input to the bus, for example, less than 9V, the potential of the common node of the third resistor R3 and the fourth resistor R4 is low, so that the first switch tube Q1 is in an off state, and at this time, the second pin of the microcontroller 261, the sixth resistor R6, and the second switch tube Q2 are turned on, which is equivalent to the control of the second switch tube Q2, so that the microcontroller 261 returns data through the bus, and thus, the bidirectional communication between the bus and the microcontroller 261 can be realized.

Therefore, with the above circuit design, when the microcontroller 261 detects that the bus voltage is smaller than the first set value through the detection module 280, the microcontroller 261 may send a start signal to the data transmission module 300 to start the data transmission control circuit 301 to operate. Then, the change from the logic "0" signal to the logic "1" signal received by the pin of the microcontroller 261 is utilized to transmit information to the microcontroller 261 through the bus, and the microcontroller 261 can then return data to the bus. Further, the bus and the microcontroller 261 can communicate with each other through a specific timing sequence and a specific protocol, so as to realize data interaction. Therefore, the microcontroller 261 controls the driving PWM circuit 251 in the driving module 250 according to different configuration control information, so that the driving PWM circuit 251 can output corresponding output parameters when working together with the microcontroller 261, thereby being capable of meeting different requirements of different customers.

By the configuration and design of the lamp power supply 200, control information/data can be directly configured for lamps, products or equipment without additionally configuring two signal/data lines, so that the structure can be simplified, the safety risk can be reduced, wires can be reduced, the risk of wrong connection can be reduced, and the workload of production personnel and field installation personnel can be reduced.

In some embodiments, after receiving the configuration control information sent by the data transmission control circuit 301, the microcontroller 261 updates the configuration control information (e.g., the operating parameters of the lamp, the address information of the lamp, etc.) of the corresponding load 271 (e.g., the lamp) on line according to the configuration control information, thereby avoiding the situation that the related lamp and the related driver need to be detached in the prior art, and achieving the effect of saving manpower and material resources.

As shown in fig. 6, in some embodiments, the luminaire power supply 200 further comprises a program data module 400. The program data module 400 is connected to a dual bus (i.e., line and neutral dual wire herein). The program data module 400 includes a circuit having a burner 401, and is configured to execute a burning program operation on the microcontroller 261 integrated in the driver, such that parameters or data related to the load (e.g., address information of the lamp, on/off interval period duration of the lamp, etc.) can be burned in, and information or data related to the configuration control information can also be burned in. Further, when the number of the microcontrollers 261 is multiple, the burner may be connected to multiple drivers of the integrated microcontroller 261, and each driver corresponds to one microcontroller 261. The burner 401 can use a broadcast protocol to execute the burning program operation, so as to realize the simultaneous burning of each microcontroller or the directional burning of the designated microcontroller, which can improve the burning efficiency. In addition, when different programs are burned for the same type of microcontroller, the program burning operation can be executed by adopting a response protocol, so that the correctness of the burned data can be ensured. The operating mechanism of the bidirectional communication between the burner 401 and the microcontroller 261 may be similar to the above-mentioned operating mechanism of the bidirectional communication between the bus and the microcontroller 261, that is, data (for example, burning data) or information is transmitted by using the change of the bus voltage (i.e., the change of high and low voltages), when the bus voltage changes from low voltage to high voltage, the burning data is transmitted from the burner to the microcontroller, and when the bus voltage is lower than a preset value (i.e., the bus inputs a low level signal), the microcontroller 261 returns data through the bus, so that the bidirectional communication between the burner and the microcontroller 261 can be realized. Of course, the communication method between the burner 401 and the microcontroller 261 is not limited thereto. In this way, the lamp power supply 200 can realize the configuration mode that one burner corresponds to a plurality of LED drivers through the burner 401 and the microcontroller 261 integrated in the drivers, thereby improving the configuration efficiency and saving manpower and material resources.

Based on the same inventive concept, an embodiment of the present invention further provides an illumination system 1000.

Fig. 7 is an architecture diagram of an illumination system according to an embodiment of the invention.

Referring to fig. 7, a lighting system 1000 according to an embodiment of the present invention includes the dual bus control-based lamp power supply 200 according to any of the above embodiments, and a lamp 500 connected to the lamp power supply 200. For the detailed structure and functions of the lamp power supply 200, please refer to the above detailed description, which is not repeated herein. The lamp 500 may be an LED lamp, but is not limited thereto, and may also be another lighting lamp matched with the lamp power supply 200.

The lighting system can directly configure control information/data for the lamp through the live wire/zero wire double wire without additionally configuring two signal/data wires, thereby simplifying the structure of the whole lighting system and reducing the cost.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above detailed description is made on a lamp power supply and a lighting system based on dual bus control provided by the embodiment of the present invention, and a specific example is applied in the present document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the technical scheme and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.