Power supply control device for a lighting source and lighting source

Abstract

The application relates to a power supply control device of an illumination light source and the illumination light source, the power supply control device of the illumination light source comprising: a non-isolated constant current power supply connected with a load light source, used for receiving a commercial power input and outputting a current to the load light source; a control module connected with the non-isolated constant current power supply, used for outputting a control signal, the control signal being used for controlling the size of the current output by the non-isolated constant current power supply to the load light source; and an isolation module connected between the non-isolated constant current power supply and the control module, comprising a power supply isolation module and a signal transmission isolation module, wherein the power supply isolation module is used for providing power supply isolation for power supply of the non-isolated constant current power supply to the control module, and the signal transmission isolation module is used for providing signal transmission isolation for signal transmission of the control module to the non-isolated constant current power supply.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and more specifically to a power supply control device for a lighting source and a lighting source. Background Technology

[0002] Current floor lamps designed for eye protection use an isolated constant voltage power supply to power both the control system and the load light source. The dimming module is connected to both the control system and the isolated constant voltage power supply. Users input commands to the control system via a control interface, such as touch or voice. The control system then outputs a dimming signal to the dimming module based on the commands. The dimming module then changes the current flowing through the load light source to achieve dimming.

[0003] However, the above design suffers from problems such as high circuit loss, high production cost, and high after-sales maintenance cost. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a power supply control device for a lighting source. The power supply control device includes: a non-isolated constant current power supply connected to a load light source for receiving mains power input and outputting current to the load light source; a control module connected to the non-isolated constant current power supply for outputting a control signal to control the magnitude of the current output by the non-isolated constant current power supply to the load light source; and an isolation module connected between the non-isolated constant current power supply and the control module, including a power supply isolation module and a signal transmission isolation module. The power supply isolation module provides power supply isolation for the power supply from the non-isolated constant current power supply to the control module, and the signal transmission isolation module provides signal transmission isolation for the signal transmission from the control module to the non-isolated constant current power supply.

[0005] In one embodiment of this application, the power supply control device further includes a first circuit board, a second circuit board, and a first connection structure. The non-isolated constant current power supply is disposed on the first circuit board, the control module is disposed on the second circuit board, and the first circuit board and the second circuit board are connected through the first connection structure.

[0006] In one embodiment of this application, the first circuit board includes a first isolation region, and the isolation module is disposed within the first isolation region. The first isolation region is used to maintain a predetermined distance between the isolation module and devices surrounding the isolation module.

[0007] In one embodiment of this application, the first connection structure includes pin headers and insulating posts, wherein the pin headers are used to realize electrical and signal transmission between the non-isolated constant current power supply and the control module; a plurality of insulating posts are disposed between the first circuit board and the second circuit board to give the first circuit board and the second circuit board a predetermined interval.

[0008] In one embodiment of this application, the non-isolated constant current power supply includes a winding, and the power supply isolation module includes an auxiliary winding. The auxiliary winding has a first end and a second end, the first end is coupled to the winding, and the second end is connected to the control module.

[0009] In one embodiment of this application, the control module includes a voltage regulator circuit, and the second terminal is connected to the voltage regulator circuit through a portion of the pin header.

[0010] In one embodiment of this application, the signal transmission isolation module includes an optocoupler having a third terminal and a fourth terminal. The third terminal is connected to the non-isolated constant current power supply, and the fourth terminal is connected to the control module.

[0011] In one embodiment of this application, the power supply control device further includes a housing, and the non-isolated constant current power supply and the control module are disposed within the housing.

[0012] This application provides a lighting source, including: a load light source, a lamp head, a lamp pole, a control interface, and the aforementioned device, wherein the control interface is disposed on the surface of the lamp pole, the lamp pole has an internal space, the device is disposed within the internal space and located behind the control interface, and the control module is connected to the control interface.

[0013] In one embodiment of this application, the lighting source further includes a lamp holder isolator disposed between the lamp holder and the load light source.

[0014] This application reduces circuit losses and improves control efficiency by directly connecting a non-isolated constant current power supply to the load light source and directly supplying power to the load light source. This application also ensures the safety and signal stability of the power supply control device by setting a power supply isolation module and a signal transmission isolation module between the non-isolated constant current power supply and the control module. This application also reduces production costs by using a non-isolated constant current power supply. Attached Figure Description

[0015] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1This is a circuit block diagram of a power supply control device;

[0017] Figure 2 This is a circuit block diagram of a power supply control device for a lighting source according to an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the power supply control device according to an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of a lighting source according to an embodiment of this application. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein, and therefore this application is not limited to the specific embodiments disclosed below.

[0022] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0023] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0025] Hereinafter, embodiments of this application will be described based on the accompanying drawings. However, the embodiments shown below are examples of a power supply control device and a lighting source for embodying the technical concept of this application, and the power supply control device and lighting source of this application are not specifically defined as follows. Furthermore, in order to facilitate understanding of the scope of the claims, the components shown in the "Claims" and "Utility Model Content" columns are assigned numbers corresponding to the components shown in the embodiments. However, the components shown in the claims are not intended to be specific to the components of the embodiments. In particular, the dimensions, materials, shapes, and relative arrangements of the constituent components described in the embodiments are not intended to limit the scope of this application unless specifically stated otherwise, but are merely illustrative examples.

[0026] However, the dimensions or positional relationships of the components shown in the accompanying drawings are sometimes exaggerated for clarity. Therefore, in the following description, detailed descriptions of the same names and symbols representing the same or homogeneous components are appropriately omitted. Furthermore, the elements constituting this application may be multiple elements composed of the same components, thus allowing one component to function as multiple elements; conversely, multiple components may share the function of one component. Additionally, the content described in some embodiments and implementations can be applied to other embodiments and implementations. Furthermore, in this specification, "upper" is not limited to the case of being formed in contact with an upper surface, but also includes the case of being formed separately on top, and also includes the meaning of an intermediate layer between layers.

[0027] Figure 1 A circuit block diagram of a power supply control device 100 is shown. (For example...) Figure 1 As shown, the power supply control device 100 for the lighting source includes a power supply system 11, a control system 12, and a load light source 13. The power supply system 11 includes an isolated constant voltage power supply 111. The control system 12 includes a PWM chopper dimming module 121, a DC-DC constant current dimming module 122, and an MCU control module 123. The load light source 13 includes one or more LED light sources 131.

[0028] like Figure 1 As shown, the isolated constant voltage power supply 111 is directly connected to the PWM chopper dimming module 121, the DC-DC dimming module 122, and the MCU control module 123, respectively, and supplies power to all three. The PWM chopper dimming module 121 and the DC-DC dimming module 122 are both connected to the load light source 13, and the MCU control module 123 is connected to both the PWM chopper dimming module 121 and the DC-DC dimming module 122.

[0029] Users can input commands to the MCU control module 123 through an external control interface. The MCU control module 123 generates a dimming signal according to the command and transmits the dimming signal to the PWM chopper dimming module 121 or the DC-DC dimming module 122. Then, the PWM chopper dimming module 121 or the DC-DC dimming module 122 can control the current flowing through the load light source 13 to achieve dimming.

[0030] However, in the aforementioned power supply control device 100, the power supply system 11, control system 12, and load light source 13 are cascaded, with the isolated constant voltage power supply 111 indirectly supplying power to the load light source 13. This results in a complex circuit design and significant circuit losses. Furthermore, when the voltage of the isolated constant voltage power supply 111 fluctuates, it causes substantial fluctuations in the current flowing through the load light source 13. To prevent excessive current from damaging the LEDs, a current-limiting resistor is typically connected in series in the load light source 13 circuit. However, this current-limiting method adds additional power loss, further reducing the overall energy efficiency of the power supply control device 100. Moreover, the isolated constant voltage power supply 111 is often expensive.

[0031] On the other hand, in application Figure 1 When the power supply control device 100 is shown, the circuits of the power supply system 11 and the control system 12 are directly embedded inside the light pole in the form of circuit boards. Once the power supply system or control system fails, the repair is very complicated, and ordinary household users have almost no ability to replace this component at home. In actual repairs, users need to send the entire light pole or the entire light to the factory for repair by professionals, which greatly increases after-sales maintenance costs.

[0032] Figure 2 This is a circuit block diagram of a power supply control device 200 for a lighting source according to an embodiment of this application. Figure 2As shown, the power supply control device 200 includes: a non-isolated constant current power supply 211 connected to a load light source 22 for receiving mains power input and outputting current to the load light source 22; a control module 231 connected to the non-isolated constant current power supply 211 for outputting control signals, the control signals being used to control the magnitude of the current output from the non-isolated constant current power supply 211 to the load light source 22; and an isolation module connected between the non-isolated constant current power supply 211 and the control module 231, including a power supply isolation module 241 and a signal transmission isolation module 242, wherein the power supply isolation module 241 is used to provide power supply isolation for the power supply from the non-isolated constant current power supply 211 to the control module 231, and the signal transmission isolation module 242 is used to provide signal transmission isolation for the signal transmission from the control module 231 to the non-isolated constant current power supply 211.

[0033] This application connects a non-isolated constant current power supply 211 to the load light source 22, allowing the non-isolated constant current power supply 211 to directly power the load light source 22, thereby reducing circuit losses in the power supply control device 200 and improving control efficiency. Furthermore, this application ensures the safety of the power supply control device 200 by setting a power supply isolation module 242 and a signal transmission isolation module 241 between the non-isolated constant current power supply 211 and the control module 231. Finally, this application reduces production costs by using the non-isolated constant current power supply 211.

[0034] like Figure 2 As shown, in the above embodiment, the non-isolated constant current power supply 211 belongs to the power supply system 21, and the control module 231 belongs to the control system 23. In the above embodiment, the mains power is the alternating current provided by the public power grid.

[0035] like Figure 2 As shown, in some embodiments, the load light source 22 includes an LED light source 221. In some embodiments, the number of LED light sources 221 is one or more. In other embodiments, the load light source 22 may also be other types of light sources.

[0036] In some embodiments, the control module 231 includes an MCU control chip. In some embodiments, the control module 231 also includes other control chips.

[0037] It should be understood that since LED light sources are generally driven by constant current, the constant current power supply can be directly used to drive the LED when its output current and voltage range match the rated parameters of the LED. However, due to the high cost of isolated constant current power supplies, this application has chosen a lower-cost non-isolated constant current power supply to reduce production costs.

[0038] In the above embodiment, by directly connecting the non-isolated constant current power supply 211 to the load light source 22, the current output from the non-isolated constant current power supply 211 to the load light source 22 can be directly adjusted according to the control signal output by the control module 231, reducing circuit losses. By using the non-isolated constant current power supply 211, due to the constant current output, there is no need to connect a resistor in series with the load light source 22 to prevent excessive current from damaging the load light source, further reducing circuit losses.

[0039] Therefore, compared with the existing isolated constant voltage power supply 111 indirectly powering the load light source 13, the power supply control device 200 of this application reduces circuit losses and improves power supply efficiency.

[0040] It should be understood that the non-isolated constant current power supply 211 directly supplies power to the control module 231, and there is no electrical isolation between the load light source 22 and the input mains power, thus posing a certain risk. Therefore, this application provides an isolation module between the non-isolated constant current power supply 211 and the control module 231. Specifically, this isolation module includes a power supply isolation module 241 and a signal isolation module 242. The power supply isolation module 241 is used to establish power supply isolation between the control module 231 and the input mains power, ensuring the safety of users directly contacting the control module 231. The signal isolation module 242 is used to establish signal transmission isolation between the control module 231 and the non-isolated constant current power supply 211, ensuring the signal stability of the control signal output by the control module 231 to the non-isolated constant current power supply 211.

[0041] Figure 3 A schematic diagram of the power supply control device according to an embodiment of this application is shown. Figure 3 As shown, in some embodiments, the power supply control device 200 further includes a first circuit board 31, a second circuit board 32 and a first connection structure. A non-isolated constant current power supply 211 is disposed on the first circuit board 31, and a control module 231 is disposed on the second circuit board 32. The first circuit board 31 and the second circuit board 32 are connected through the first connection structure.

[0042] By separating the non-isolated constant current power supply 211 from the control module 231 on separate boards, the physical distance between the non-isolated constant current power supply 211 and the control module (the transmission line for control signals) is increased, improving the safety of the power supply control device 200 and reducing the coupling paths of high-frequency noise from the non-isolated constant current power supply 211 (such as parasitic capacitance / inductive coupling), thereby reducing power supply noise interference with control signals and improving signal integrity. Furthermore, the separate board arrangement provides a solid foundation for the compact size of the power supply control device 200. In addition, using the power supply control device 200 of this application facilitates disassembly and installation, and allows for independent maintenance or upgrades (such as replacing the non-isolated constant current power supply 211 or the control module 231), reducing maintenance costs.

[0043] In some embodiments, both the first circuit board 31 and the second circuit board 32 include a PCB board. Further, in some embodiments, both the first circuit board 31 and the second circuit board 32 are PCBA boards.

[0044] like Figure 3 As shown, in some embodiments, the first circuit board 31 includes a first isolation region 311, and an isolation module is disposed within the first isolation region 311. The first isolation region 311 is used to maintain a predetermined distance between the isolation module and surrounding devices. The position of the first isolation region 311 on the first circuit board 31 can be determined according to the actual circuit design, and this application does not limit it. Figure 3 As shown, the first isolation area 311 is located in the middle of the first circuit board 31. By setting the first isolation area 311, a certain creepage distance is maintained between the isolation module and surrounding devices, further ensuring the safety of the entire power supply control device 200.

[0045] In the above embodiment, by setting the non-isolated constant current power supply 211 on the first circuit board 31 and the control module 231 on the second circuit board 32, the first circuit board 31 and the second circuit board 32 are connected by a first connection structure, and a first isolation area 311 is divided on the first circuit board 31 to place the isolation modules, namely: power supply isolation module 241 and signal transmission isolation module 242. This design allows the overall product size of the power supply control device 200 to be greatly reduced, and also meets the safety design requirements.

[0046] like Figure 3 As shown, in some embodiments, the first connection structure includes a pin header 331 and an insulating post 332, wherein the pin header 331 is used to realize electrical and signal transmission between the non-isolated constant current power supply 211 and the control module 231; a plurality of insulating posts 332 are disposed between the first circuit board 31 and the second circuit board 32 so that there is a predetermined interval between the first circuit board 31 and the second circuit board 32.

[0047] In the above embodiments, on the one hand, the multiple insulating pillars 332 provide mechanical support, ensuring a predetermined interval between the first circuit board 31 and the second circuit board 32. This facilitates the arrangement of components on the second circuit board 32, reduces the risk of electromagnetic interference, prevents components from being squeezed and deformed or short-circuited, and ensures the structural stability of the entire power supply control device. Simultaneously, it promotes airflow and improves heat dissipation. On the other hand, the insulating pillars 332 are made of insulating material, preventing accidental contact between conductive components of the first circuit board 31 and the second circuit board 32, preventing short circuits or leakage, and enhancing the safety of the power supply control device 200.

[0048] In some embodiments, the size of the predetermined interval can be set according to actual engineering requirements. For example... Figure 3 As shown, in some embodiments, a plurality of pin headers 331 are disposed within a first isolation region 311 to ensure the safety of electrical and signal transmission.

[0049] like Figure 3 As shown, in some embodiments, the first circuit board 31 and the second circuit board 32 are two rectangular plates of the same size and arranged parallel to each other. In this embodiment, along the F1 direction perpendicular to the first circuit board 31 and the second circuit board 32, the projections of the first circuit board 31 and the second circuit board 32 coincide, that is, the first circuit board 31 and the second circuit board 32 are equal in size and shape, and aligned with each other along the F1 direction. Four insulating posts 332 respectively contact the four corners of the first circuit board 31 and the second circuit board 32, and the four insulating posts 332 are parallel to each other. This design helps to reduce the area and volume of the power supply control device 200. In some embodiments, the number of insulating posts 332, the size and shape of the first circuit board 31, and the size and shape of the second circuit board 32 can be set according to actual engineering requirements.

[0050] In some embodiments, the non-isolated constant current power supply 211 includes a winding (not shown), and the power supply isolation module 242 includes an auxiliary winding (not shown). The auxiliary winding has a first end and a second end, the first end being coupled to the winding, and the second end being connected to the control module 231. By providing the auxiliary winding, electrical isolation is achieved for the power supply path from the non-isolated constant current power supply 211 to the control module 231. It should be noted that since the power supply isolation module 242 is located on the first circuit board 31, the auxiliary winding is also located on the first circuit board 31. On the first circuit board 31, the auxiliary winding is located in the first isolation region 311, its first end being coupled to the winding in the non-isolated constant current power supply 211, and its second end being coupled to the connection end (lower end) of the corresponding pin header 331 on the first circuit board 31, thereby connecting to the control module 231 on the second circuit board 32 through the corresponding pin header 331. The pin header 331 is connected between the first circuit board 31 and the second circuit board 32. The connection end of the pin header 331 connected to the first circuit board 31 can be defined as its lower end, and the connection end of the pin header 331 connected to the second circuit board 32 can be defined as its upper end.

[0051] In some embodiments, to achieve power supply isolation, the power supply isolation module 242 may employ other components with power supply isolation functions, such as capacitors or relays. In some embodiments, the power supply isolation module 242 may use a small isolated constant voltage power supply to supply power to the control module 231 separately.

[0052] In some embodiments, the control module 231 includes a voltage regulator circuit, and the second end of the auxiliary winding is connected to the voltage regulator circuit via a portion of the pin header. According to these embodiments, this is equivalent to the second end of the auxiliary winding being directly connected to the voltage regulator circuit of the control module 231. Here, "partial pin header" refers to the pin header corresponding to the voltage regulator circuit. By providing a voltage regulator circuit, it is beneficial to maintain the stability of the voltage output from the non-isolated constant current power supply 211 to the control module 231.

[0053] In some embodiments, the voltage regulator circuit includes circuits commonly used for voltage regulation, such as LDOs.

[0054] In some embodiments, the signal transmission isolation module 241 includes an optocoupler having a third terminal and a fourth terminal. The third terminal is connected to the non-isolated constant current power supply 211, and the fourth terminal is connected to the control module 231. Similar to the auxiliary winding, the optocoupler is also located on the first circuit board 31. On the first circuit board 31, the optocoupler is disposed in the first isolation region 311, with its third terminal coupled to the non-isolated constant current power supply 211 and its fourth terminal coupled to the corresponding pin header 331 at the connection end (lower end) on the first circuit board 31, thereby connecting to the control module 231 on the second circuit board 32 through the corresponding pin header 331. The control module 231 transmits control signals to the non-isolated constant current power supply 211 through the optocoupler to control the current output of the non-isolated constant current power supply 211, thereby adjusting the brightness of the load light source 22.

[0055] By setting an optocoupler between the non-isolated constant current power supply 211 and the control module 231, signal transmission isolation of the control signal in the transmission path from the control module 231 to the non-isolated constant current power supply 211 can be achieved, which is beneficial to the stability of signal transmission.

[0056] In some embodiments, to achieve signal transmission isolation, the signal transmission isolation module 242 may include other components with signal transmission isolation functions, such as magnetic couplers. In some embodiments, the signal transmission isolation module 242 may include a digital isolator or a small transformer.

[0057] In some embodiments, the power supply control device 200 further includes a housing, within which a non-isolated constant current power supply 211 and a control module 231 are disposed. By placing the entire power supply control device 200 within the housing, a modular design of the power supply control device 200 can be achieved, allowing it to be sold as a standalone product. In the event of a malfunction in the power supply control device 200, the user can purchase a new power supply control device 200 separately for replacement.

[0058] In some embodiments, the housing includes an opening through which the power supply control device 200 extends a wire to connect to the load light source 22, or through which the wire of the load light source 22 extends into the opening to connect to the power supply control device 200.

[0059] In some embodiments, the housing material includes metal and plastic. Since metal housings are inexpensive to mold and have low costs, metal is the preferred material for the housing.

[0060] Figure 4 A schematic diagram of the structure of a lighting source according to an embodiment of this application is shown. Figure 4 As shown, this application also provides a lighting source 400, including: a load light source 22, a lamp head 41, a lamp post 42, a control interface 43, and the aforementioned power supply control device 200. The control interface 43 is disposed on the surface of the lamp post 42, the lamp post 42 has an internal space (not shown), the power supply control device 200 is disposed in the internal space and located behind the control interface 43, and the control module 231 is connected to the control interface 43.

[0061] By placing the power supply control device 200 inside the light pole 42, users can easily access and remove it by simply opening the panel on the control interface 43, improving maintenance convenience and reducing maintenance costs. In some embodiments, after opening the panel on the control interface 43, the user can remove the entire power supply control device 200, including its housing, and send it back to the manufacturer.

[0062] In some embodiments, along direction F2 perpendicular to axis 44 of lamp post 42, the projected area of ​​power supply control device 200 is less than or equal to the projected area of ​​control interface 43, to facilitate the removal or placement of power supply control device 200. By designing the area of ​​the first circuit board 31 and the second circuit board 32, the projected area of ​​power supply control device 200 can be made less than or equal to the projected area of ​​control interface 43. Thus, without altering the appearance of the existing lighting source 400, the power supply control device 200 of this application can be used in conjunction with the existing lighting source 400's lamp post 42 and control interface 43, improving the product applicability and practicality of power supply control device 200.

[0063] In some embodiments, the control interface 43 includes a touchscreen. Users can directly input dimming commands to the control module 231 by touching the control interface 43, thereby adjusting the brightness of the load light source 22. In some embodiments, the control interface 43 includes any of the following: knobs, buttons, a touchscreen, and voice control.

[0064] In some embodiments, the lighting source 400 further includes a lamp holder isolator (not shown) disposed between the lamp holder 41 and the load light source 22. The lamp holder isolator is used to achieve physical isolation between the lamp holder 41 and the load light source 22. By providing the lamp holder isolator, the safety of the lighting source 400 is further ensured.

[0065] In some embodiments, the lamp holder isolation component includes an insulating material, such as fiberglass board, insulating tape, etc.

[0066] In some embodiments, the lamp holder isolator may not be used. For example, physical isolation between the lamp holder 41 and the load light source 22 can be achieved by making the lamp holder 41 of plastic or other insulating material.

[0067] In some embodiments, the lamp holder isolator includes a non-insulating material. For example, insulating varnish may be used on the side of the lamp holder isolator near the lamp holder 41, and a non-insulating material may be used on the side near the load light source 22.

[0068] Compared to existing technologies, this application optimizes the circuit structure by directly using a non-isolated constant current power supply 211 to power the load light source 22. The control module 231 directly controls the operating state of the non-isolated constant current power supply 211, achieving the effect of constant current dimming for the load light source 22. This optimization simplifies the circuit design, reduces circuit losses in the power supply control device 200 and the lighting source 400, thereby improving their operating efficiency, reducing system heat generation, and consequently shrinking the system's size. This provides a solid foundation for the modular design of the physical structure of the power supply control device 200.

[0069] Compared to existing technologies, where electrical isolation is primarily achieved through an isolated constant voltage power supply, and then complemented by a control module and a dimming module to complete the dimming function of the load light source, this application directly uses a non-isolated constant current power supply 211 to complete the dimming control of the load light source 22. Electrical isolation is mainly achieved through other methods, such as using an auxiliary winding to power the control module 231, using optocouplers to achieve isolated signal transmission, and using fiberglass boards to achieve physical insulation of the load light source 22, which reduces costs and ensures the safety of the device.

[0070] While the foregoing disclosure has discussed various examples of utility model embodiments that are currently considered useful, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments. Rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the embodiments of this application. For example, although the system components described above can be implemented by hardware devices, they can also be implemented solely by software solutions, such as installing the described system on existing servers or mobile devices.

[0071] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments of the utility model, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0072] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

Claims

1. A power supply control device for a lighting source, characterized in that, include: A non-isolated constant current power supply is connected to a load light source to receive mains power input and output current to the load light source. A control module, connected to the non-isolated constant current power supply, is used to output a control signal, which is used to control the magnitude of the current output by the non-isolated constant current power supply to the load light source. as well as An isolation module, connected between the non-isolated constant current power supply and the control module, includes a power supply isolation module and a signal transmission isolation module. The power supply isolation module provides power supply isolation for the power supply from the non-isolated constant current power supply to the control module, and the signal transmission isolation module provides signal transmission isolation for the signal transmission from the control module to the non-isolated constant current power supply.

2. The apparatus as claimed in claim 1, characterized in that, It also includes a first circuit board, a second circuit board, and a first connection structure. The non-isolated constant current power supply is disposed on the first circuit board, the control module is disposed on the second circuit board, and the first circuit board and the second circuit board are connected through the first connection structure.

3. The apparatus as described in claim 2, characterized in that, The first circuit board includes a first isolation area, and the isolation module is disposed within the first isolation area. The first isolation area is used to maintain a predetermined distance between the isolation module and the devices around the isolation module.

4. The apparatus as claimed in claim 2, characterized in that, The first connection structure includes pin headers and insulating posts, wherein the pin headers are used to realize electrical and signal transmission between the non-isolated constant current power supply and the control module; a plurality of insulating posts are disposed between the first circuit board and the second circuit board to give the first circuit board and the second circuit board a predetermined interval.

5. The apparatus as described in claim 4, characterized in that, The non-isolated constant current power supply includes a winding, and the power supply isolation module includes an auxiliary winding. The auxiliary winding has a first end and a second end, the first end is coupled to the winding, and the second end is connected to the control module.

6. The apparatus as claimed in claim 5, characterized in that, The control module includes a voltage regulator circuit, and the second terminal is connected to the voltage regulator circuit through a portion of the pin header.

7. The apparatus as claimed in claim 1, characterized in that, The signal transmission isolation module includes an optocoupler, which has a third terminal and a fourth terminal. The third terminal is connected to the non-isolated constant current power supply, and the fourth terminal is connected to the control module.

8. The apparatus as claimed in claim 1, characterized in that, It also includes a housing, in which the non-isolated constant current power supply and the control module are disposed.

9. A lighting source, characterized in that, include: The light source, lamp head, lamp pole, control interface, and device as described in any one of claims 1-8, wherein the control interface is disposed on the surface of the lamp pole, the lamp pole has an internal space, the device is disposed within the internal space and located behind the control interface, and the control module is connected to the control interface.

10. The lighting source as described in claim 9, characterized in that, It also includes a lamp holder isolator, disposed between the lamp holder and the load light source.

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