Dimmer type dimming power supply
The dimmer-type dimmable power supply integrates dimming and power supply functions, reducing wiring complexity and costs, and enabling compact, efficient dimming and color temperature adjustment.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- ZHUHAI SHENGCHANG ELECTRONICS CO LTD
- Filing Date
- 2024-05-20
- Publication Date
- 2026-07-06
AI Technical Summary
Existing dimming systems require cumbersome wiring and complex control methods, leading to high costs and complexity due to the need for separate dimmers and dimmable power supplies, such as 0-10V or phase-cut systems.
A dimmer-type dimmable power supply integrating a housing, control board, and modules for electromagnetic compatibility, switching power supply, main control, output adjustment, and dimming control, which reduces wiring and integrates dimmer and power supply functions, allowing for compactness and cost reduction.
The integrated dimmer-type dimmable power supply offers convenient installation, reduced size, and cost savings while providing dimming and color temperature adjustment, meeting US CLASS2 standards under high power and current conditions.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to the field of LED power supplies, and particularly to a dimmable power supply of the dimmer type.
Background Art
[0002] With the improvement of people's living standards, the requirements for lighting have been continuously increasing. Therefore, in some living scenes, it is necessary to adjust the lighting. In the prior art, the method of adjusting lighting generally involves transmitting a dimming command to a dimmable power supply through a dimmer or a dimming system. After the dimmable power supply receives the dimming signal, it adjusts and changes the output to change the brightness, color temperature or color of the lighting. This dimming method not only requires cumbersome wiring, but also requires a dimmer or a dimming system, and a dimmable power supply suitable for the dimming method. For example, if the dimmer is a 0-10V dimmer, the suitable dimmable power supply must be a 0-10V dimmable power supply. If the dimming system is a phase-cut dimming method, the suitable dimmable power supply must be a phase-cut dimmable power supply. Therefore, the costs of the dimmer and the dimmable power supply are relatively high, and the control method is also relatively complex. Therefore, a dimmable power supply of the dimmer type is urgently needed to solve the above problems.
Summary of the Invention
Problems to be Solved by the Invention
[0003] An object of the present invention is to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention proposes a dimmable power supply of the dimmer type.
Means for Solving the Problems
[0004] As a technical means adopted in an embodiment of the present invention to solve the technical problems, a dimmable power supply of the dimmer type, comprising a housing, a control board provided in the housing, and a plurality of operation terminals provided on the housing, wherein a module with electromagnetic compatibility, a switching power supply module, a main control module, an output adjustment module and a dimming control module are provided on the control board. The input terminal of the electromagnetically compatible module is connected to an AC power supply. The switching power supply module is connected to an electromagnetically compatible module. The output adjustment module is connected to the switching power supply module and also to the lighting fixture. The main control module is connected to the switching power supply module and the output adjustment module, respectively. The dimming control module is connected to the main control module and multiple control terminals, respectively, and is used to generate dimming command signals. The main control module controls the brightness, color temperature, and / or color of the lighting fixture by outputting a PWM control signal to the output adjustment module in accordance with the dimming command signal generated by the dimming control module.
[0005] In one preferred embodiment of the present invention, the switching power supply module comprises a power factor correction module and a power conversion module. A power factor correction module has its input terminal connected to an electromagnetically compatible module and is used to improve the power factor and reduce current harmonics. The power conversion module has its input terminal connected to the output terminal of the power factor correction module, and its output terminal is connected to the main control module and the output adjustment module, respectively. It is used for power conversion and power supply to the main control module, the output adjustment module, and lighting fixtures.
[0006] In one preferred embodiment of the present invention, the output adjustment module comprises a MOS transistor and a drive module, wherein the source of the MOS transistor is connected to a switching power supply module, the drain of the MOS transistor is connected to an output terminal, the drive module is connected to a main control module and the gate of the MOS transistor, respectively, and a lighting fixture is connected to the output terminal to adjust the brightness of the lighting fixture.
[0007] In one preferred embodiment of the present invention, a dimmer-type dimming power supply further comprises a detection module and an overcurrent protection module, wherein one end of the detection module is connected to a switching power supply module, the other end of the detection module is connected to the input terminal and the source of a MOS transistor of the overcurrent protection module, and the output terminal of the overcurrent protection module is connected to a drive module.
[0008] In one preferred embodiment of the present invention, a dimmer-type dimming power supply further comprises a detection module, one end of which is connected to a switching power supply module, and a drive module connected to the main control module and the other end of the detection module, respectively, and the main control module can control the conduction and non-conductivity of a MOS transistor via the drive module based on a signal fed back from the detection module.
[0009] In one preferred embodiment of the present invention, the output adjustment module comprises at least two MOS transistors and at least two drive modules. The source of the MOS transistor is connected to the switching power supply module, the drain of the MOS transistor is connected to the output terminal, and the drive module is connected to the main control module and the gate of the MOS transistor, respectively, thereby forming at least two output adjustment circuits. Lighting fixtures are connected to output terminals to adjust their brightness, color temperature, and / or color.
[0010] In one preferred embodiment of the present invention, a dimmer-type dimmable power supply further comprises at least two detection modules and at least two overcurrent protection modules, wherein one end of the detection module is connected to a switching power supply module, the other end of the detection module is connected to the input terminal and the source of a MOS transistor of the overcurrent protection module, respectively, and the output terminal of the overcurrent protection module is connected to a drive module, thereby limiting the output power and output current of the output adjustment circuit of each system.
[0011] In one preferred embodiment of the present invention, the dimming control module includes a potentiometer dimming circuit or an encoder dimming circuit for adjusting the brightness of a lighting fixture.
[0012] In one preferred embodiment of the present invention, the dimming control module comprises at least two potentiometer dimming circuits or at least two encoder dimming circuits for adjusting the brightness, color temperature and / or color of the luminaire.
[0013] In one preferred embodiment of the present invention, the dimming control module is configured as a touch dimming circuit or a wireless signal dimming circuit to adjust the brightness, color temperature and / or color of a lighting fixture. [Effects of the Invention]
[0014] A dimmer-type dimmable power supply comprises a housing, a control board provided inside the housing, and a plurality of operating terminals provided on the housing. An electromagnetically compatible module, a switching power supply module, a main control module, an output adjustment module, and a dimming control module are provided on the control board. The input terminal of the electromagnetically compatible module is connected to an AC power supply. The switching power supply module is connected to the electromagnetically compatible module. The output adjustment module is connected to the switching power supply module and the lighting fixture. The main control module is connected to the switching power supply module and the output adjustment module, respectively. The dimming control module is connected to the main control module and the plurality of operating terminals, respectively, and is used to generate dimming command signals. The main control module controls the brightness, color temperature, and / or color of the lighting fixture by outputting a PWM control signal to the output adjustment module according to the dimming command signals generated by the dimming control module. Integrating the dimmer and dimmable power supply not only reduces wiring but also offers advantages such as convenient installation, compactness, and small size, significantly reducing costs. It also features dimming and color temperature adjustment functions and can be configured as a power supply that meets the requirements of the US CLASS2 standard even under high power and high current conditions.
[0015] The above and / or additional aspects and advantages of the present invention will become clear and understandable by explaining the embodiments while referring to the following drawings.
Brief Description of the Drawings
[0016] [Figure 1] It is a schematic configuration diagram of a dimming device type dimming power supply. [Figure 2] It is a principle block diagram of the first embodiment of a dimming device type dimming power supply. [Figure 3] It is a principle block diagram of the second embodiment of a dimming device type dimming power supply. [Figure 4] It is a principle block diagram of the third embodiment of a dimming device type dimming power supply. [Figure 5] It is a principle block diagram of the fourth embodiment of a dimming device type dimming power supply. [Figure 6] It is a principle block diagram of the fifth embodiment of a dimming device type dimming power supply. [Figure 7] It is a principle block diagram of the sixth embodiment of a dimming device type dimming power supply. [Figure 8] It is a principle block diagram of the seventh embodiment of a dimming device type dimming power supply.
Modes for Carrying Out the Invention
[0017] Here, specific embodiments of the present invention will be described in detail, and preferred embodiments of the present invention are shown in the accompanying drawings. The role of the accompanying drawings is to illustrate and supplement the description in the text of the specification so that people can intuitively and clearly understand each technical feature and the overall technical means of the present invention, but it is not a limitation on the protection scope of the present invention.
[0018] In the description of the present invention, "plural" means two or more, and "larger", "smaller", "more", etc. are understood not to include the number, and "above", "below", "within", etc. are understood to include the number. The terms "first" and "second" are merely used to distinguish technical features, and it should not be understood as indicating or suggesting relative importance, or implicitly indicating the number or order relationship of the indicated technical features.
[0019] In the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is merely for the purpose of facilitating the simple description of the present invention. It does not indicate or imply that the indicated device or member must have a specific orientation or be configured and operate in a specific orientation, so it is not a limitation to the present invention.
[0020] Unless otherwise explicitly limited, the terms "provided", "attached", "connected" used in the present invention should be interpreted in a broad sense. For example, they may be directly connected or indirectly connected through intermediate elements, may be fixedly connected, removably connected, or integrally formed, and may be a mechanical connection, or may be a communication inside two elements or an interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meaning of the above terms in the present invention based on the specific content of the technical means.
[0021] Referring to FIGS. 1 to 8, there is provided an optical dimming power supply, comprising a housing 90, a control circuit board provided in the housing 90, and a plurality of operation terminals 91 provided on the housing 90. A module 10 with electromagnetic compatibility, a switching power supply module 20, a main control module 30, an output adjustment module 40, and a dimming control module 50 are provided on the control circuit board. The input end of the module 10 with electromagnetic compatibility is connected to an AC power supply. The switching power supply module 20 is connected to the module 10 with electromagnetic compatibility. The output adjustment module 40 is connected to the switching power supply module 20 and is also connected to a lighting fixture. The main control module 30 is respectively connected to the switching power supply module 20 and the output adjustment module 40. The dimming control module 50 is respectively connected to the main control module 30 and the plurality of operation terminals 91, and is used to generate a dimming command signal. The main control module 30 controls the brightness, color temperature, and / or color of the lighting fixture by outputting a PWM control signal to the output adjustment module 40 in accordance with the dimming command signal generated by the dimming control module 50.
[0022] Referring to Figures 1 and 2, in the present invention, the external appearance of the dimmer-type dimmable power supply is in the shape of a dimmer, with a dimming control board provided at the top, and in some typical embodiments, a switch 92 is also provided for controlling the conduction / non-conductivity of the input and AC power supply of the dimmer-type dimmable power supply. Inside, there is an electromagnetically compatible module 10, a switching power supply module 20, a main control module 30, an output adjustment module 40, and a dimming control module 50. The switching power supply module 20 is used for power conversion, the dimming control module 50 can generate a dimming command signal when the operating terminal 91 is operated, and the main control module 30 can control the brightness, color temperature and / or color of the lighting fixture by outputting a PWM control signal to the output adjustment module 40 according to the dimming command signal generated by the dimming control module 50. Furthermore, since the internal space of the dimmer-type dimmable power supply is relatively small, space utilization can be maximized by joining multiple circuit boards, thereby increasing power density while reducing volume. This invention integrates a dimmer and a dimmable power supply, reducing wiring, offering advantages such as convenient installation, compactness, and small size, significantly reducing costs, and also providing dimming and color temperature adjustment functions. Furthermore, it has the advantage of being able to be configured as a power supply that meets the requirements of the US CLASS2 standard even under high power and high current conditions.
[0023] Referring to Figure 3, in a preferred embodiment of the switching power supply module 20, the switching power supply module 20 comprises a power factor correction module 21 and a power conversion module 22. The power factor correction module 21 has its input terminal connected to the electromagnetically compatible module 10 and is used to improve the power factor and reduce current harmonics. The power conversion module 22 has its input terminal connected to the output terminal of the power factor correction module 21, and its output terminals are connected to the main control module 30 and the output adjustment module 40, respectively. It is used for power conversion and for supplying power to the main control module 30, the output adjustment module 40, and lighting fixtures.
[0024] Referring to Figure 4, in a first embodiment of the output adjustment module 40, the output adjustment module 40 comprises a MOS transistor and a drive module 60. The source of the MOS transistor is connected to the switching power supply module 20, and the drain of the MOS transistor is connected to the output terminal. The drive module 60 is connected to the main control module 30 and the gate of the MOS transistor, respectively. The lighting fixture is connected to the output terminal to adjust the brightness of the lighting fixture. The output mode of the main control module 30 is PWM mode. The PWM control signal output by the main control module 30 is amplified by the drive module 60 and then drives the MOS transistor Q1. The duty cycle of the PWM control signal determines the PWM duty cycle output by the output adjustment module 40, which directly affects the brightness of the lighting fixture. Of course, this does not preclude changing the brightness of the lighting fixture by adjusting voltage or current in some applications.
[0025] Referring to Figure 4, as a first embodiment of overcurrent and short-circuit protection, there is a dimmer-type dimmable power supply that further comprises a detection module 70 and an overcurrent protection module 80. One end of the detection module 70 is connected to a switching power supply module 20, and the other end of the detection module 70 is connected to the input terminal and the source of the MOS transistor of the overcurrent protection module 80, respectively, and the output terminal of the overcurrent protection module 80 is connected to a drive module 60. The detection module 70 includes a resistor R1, and the realization of the overcurrent and short-circuit protection function depends on a separate overcurrent protection module 80. Specifically, the overcurrent protection module 80 detects the voltage drop generated by the current flowing through the resistor R1 to determine whether there is an overcurrent or a short circuit. When the voltage drop on the resistor R1 reaches the trigger voltage threshold for overcurrent protection, the overcurrent protection module 80 sends a signal to the drive module 60 to turn off the output, turning off the MOS transistor Q1 and realizing overcurrent and short-circuit protection.
[0026] Referring to Figure 6, a second embodiment of overcurrent and short-circuit protection is a dimmer-type dimmable power supply, further comprising a detection module 70. One end of the detection module 70 is connected to a switching power supply module 20, and a drive module 60 is connected to the main control module 30 and the other end of the detection module 70, respectively. The main control module 30 can control the conduction and non-conductivity of the MOS transistor via the drive module 60 based on a signal fed back from the detection module 70. The detection module 70 includes a resistor R1. Overcurrent and short-circuit protection is realized when a microcontroller U1 in the main control module 30 detects the voltage drop generated by the current flowing across the resistor R1 to determine whether there is an overcurrent or a short circuit, and implements overcurrent and short-circuit protection through program control. Specifically, when the microcontroller U1 of the main control module 30 detects that the voltage drop generated by the current flowing across the resistor R1 has reached the trigger voltage threshold for overcurrent protection, the main control module 30 stops outputting a signal to the output adjustment module 40, thereby implementing overcurrent and short-circuit protection.
[0027] Referring to Figure 5, in a second embodiment of the output adjustment module 40, the output adjustment module 40 comprises at least two MOS transistors and at least two drive modules 60. The source of the MOS transistor is connected to the switching power supply module 20, the drain of the MOS transistor is connected to the output terminal, and the drive module 60 is connected to the main control module 30 and the gate of the MOS transistor, respectively, thereby forming at least two output adjustment circuits 61. Lighting fixtures are connected to output terminals to adjust the brightness, color temperature, and / or color of the lighting fixtures. Specifically, if a dimmer-type dimming power supply has a color temperature and color adjustment function, the output adjustment module 40 has at least two output adjustment circuits 61, that is, at least two MOS transistors and at least two drive modules 60, which output via the first and second output terminals, respectively, and are connected to lighting fixtures of different color temperatures. A dimming command is transmitted to the main control module 30 via the dimming control module 50, and the main control module 30 transmits the corresponding PWM control signal to the drive modules 60 in each output adjustment circuit 61 within the output adjustment module 40, thereby controlling the output PWM duty cycle of the MOS transistors in each output adjustment circuit 61 to achieve adjustment of brightness, color temperature, or color.
[0028] Referring to Figure 7, a further embodiment of the present invention is a dimmer-type dimmable power supply further comprising at least two detection modules 70 and at least two overcurrent protection modules 80, wherein one end of the detection module 70 is connected to a switching power supply module 20, the other end of the detection module 70 is connected to the input terminal and the source of the MOS transistor of the overcurrent protection module 80, respectively, and the output terminal of the overcurrent protection module 80 is connected to a drive module 60, thereby limiting the output power and output current of the output adjustment circuit 61 for each system. In some typical embodiments, the output must meet the requirements of the US CLASS 2 standard, i.e., if the total output power exceeds 100W or the total output current exceeds 5A, multiple outputs must be used, and the output of each system must be limited to 100W or less, or the current must be limited to 5A. Therefore, the output adjustment module 40 may comprise multiple MOS transistors, drive modules 60, overcurrent detection resistors, and overcurrent protection modules 80 for use in limiting the power of each system to 100W or less and limiting the output current of each system to 5A or less.
[0029] Referring to Figure 1, in a first embodiment of the dimming control module 50, the dimming control module 50 is equipped with a potentiometer dimming circuit 51 or an encoder dimming circuit to adjust the brightness of the lighting fixture, and the operating terminal 91 is a potentiometer.
[0030] The dimming control module 50 includes at least two potentiometer dimming circuits 51 or at least two encoder dimming circuits to adjust the brightness, color temperature, and / or color of the lighting fixture. Referring to Figures 1 and 8, in a second embodiment of the dimming control module 50, the dimming control module 50 includes two potentiometer dimming circuits 51, the left operating end 91 of the housing 90 is a potentiometer RP1, and the right operating end 91 of the housing 90 is a potentiometer RP2, the input terminals of potentiometer RP1 and potentiometer RP2 are connected to the VCC terminal, the output terminals of potentiometer RP1 and potentiometer RP2 are grounded, the adjustment terminals of potentiometer RP1 and potentiometer RP2 are connected to the main control module 30, potentiometer RP1 is used to adjust the brightness of the lighting fixture, and potentiometer RP2 is used to adjust the color temperature or color of the lighting fixture.
[0031] As a third embodiment of the dimming control module 50, the dimming control module 50 is configured as a touch dimming circuit or a wireless signal dimming circuit to adjust the brightness, color temperature and / or color of the lighting fixture.
[0032] Of course, the present invention is not limited to the embodiments described above, and those skilled in the art may make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included within the scope limited by the claims of this application.
Claims
1. A dimmer-type dimming power supply comprising a housing (90), a control board provided inside the housing (90), and a plurality of operating terminals (91) provided on the housing (90), wherein an electromagnetically compatible module (10), a switching power supply module (20), a main control module (30), an output adjustment module (40), and a dimming control module (50) are provided on the control board, The input terminal of the electromagnetically compatible module (10) is connected to an AC power supply. The switching power supply module (20) is connected to the electromagnetically compatible module (10), The output adjustment module (40) is connected to the switching power supply module (20) and also to the lighting fixture. The main control module (30) is connected to the switching power supply module (20) and the output adjustment module (40), respectively. The dimming control module (50) is connected to the main control module (30) and the plurality of operating terminals (91), respectively, and is used to generate dimming command signals. The main control module (30) outputs a PWM control signal to the output adjustment module (40) in accordance with the dimming command signal generated by the dimming control module (50). The output adjustment module (40) adjusts the power supplied from the switching power supply module (20) based on the PWM control signal to supply power to the lighting fixture, and controls the brightness, color temperature and / or color of the lighting fixture. The duty cycle of the PWM control signal determines the PWM duty cycle output by the output adjustment module (40), which directly affects the brightness of the lighting fixture. A dimmer-type dimmable power supply characterized by the following features.
2. The switching power supply module (20) comprises a power factor correction module (21) and a power conversion module (22), The power factor correction module (21) has its input terminal connected to the electromagnetically compatible module (10) and is used to improve the power factor and reduce current harmonics. The power conversion module (22) has its input terminal connected to the output terminal of the power factor correction module (21), and its output terminal is connected to the main control module (30) and the output adjustment module (40), respectively, and is used for power conversion and power supply to the main control module (30), the output adjustment module (40), and the lighting fixtures. The dimmer-type dimming power supply according to claim 1.
3. The output adjustment module (40) comprises a MOS transistor and a drive module (60), the source of the MOS transistor being connected to the switching power supply module (20), the drain of the MOS transistor being connected to the output terminal, the drive module (60) being connected to the main control module (30) and the gate of the MOS transistor respectively, and the lighting fixture being connected to the output terminal to adjust the brightness of the lighting fixture. The dimmer-type dimming power supply according to claim 1.
4. The system further comprises a detection module (70) and an overcurrent protection module (80), wherein one end of the detection module (70) is connected to the switching power supply module (20), the other end of the detection module (70) is connected to the input terminal of the overcurrent protection module (80) and the source of the MOS transistor, respectively, and the output terminal of the overcurrent protection module (80) is connected to the drive module (60). The dimmer-type dimming power supply according to claim 3.
5. The system further includes a detection module (70), one end of which is connected to the switching power supply module (20), and the drive module (60) is connected to the main control module (30) and the other end of the detection module (70), respectively. The main control module (30) can control the conduction and non-conductivity of the MOS transistor via the drive module (60) based on signals fed back from the detection module (70). The dimmer-type dimming power supply according to claim 3.
6. The output adjustment module (40) comprises at least two MOS transistors and at least two drive modules (60), The source of the MOS transistor is connected to the switching power supply module (20), the drain of the MOS transistor is connected to the output terminal, and the drive module (60) is connected to the main control module (30) and the gate of the MOS transistor, respectively, thereby forming at least two output adjustment circuits (61). The aforementioned lighting fixture is connected to an output terminal to adjust the brightness, color temperature, and / or color of the lighting fixture. The dimmer-type dimming power supply according to claim 1.
7. The system further comprises at least two detection modules (70) and at least two overcurrent protection modules (80), one end of the detection module (70) is connected to the switching power supply module (20), the other end of the detection module (70) is connected to the input terminal of the overcurrent protection module (80) and the source of the MOS transistor, respectively, and the output terminal of the overcurrent protection module (80) is connected to the drive module (60), thereby limiting the output power and output current of the output adjustment circuit (61) for each system. The dimmer-type dimming power supply according to claim 6.
8. The dimming control module (50) includes a potentiometer dimming circuit (51) or an encoder dimming circuit to adjust the brightness of the lighting fixture. The dimmer-type dimming power supply according to claim 1.
9. The dimming control module (50) includes at least two potentiometer dimming circuits (51) or at least two encoder dimming circuits to adjust the brightness, color temperature, and / or color of the lighting fixture. The dimmer-type dimming power supply according to claim 1.
10. The dimming control module (50) is configured as a touch dimming circuit or a wireless signal dimming circuit to adjust the brightness, color temperature, and / or color of the lighting fixture. The dimmer-type dimming power supply according to claim 1.