CN117241436A - Wireless constant current dimming circuit, PCB and driving power supply - Google Patents
- ️Fri Dec 15 2023
CN117241436A - Wireless constant current dimming circuit, PCB and driving power supply - Google Patents
Wireless constant current dimming circuit, PCB and driving power supply Download PDFInfo
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Abstract
本发明公开了一种无线恒流调光电路、PCB板及驱动电源，所述无线恒流调光电路包括输入处理单元、输出单元、无线通讯单元以及信号处理单元，所述信号处理单元包括控制部；所述输入处理单元的输入端用于连接外部供电机构，所述输入处理单元的输出端分别与所述输出单元的输入端以及所述信号处理单元的输入端连接，所述无线通讯单元的输入端用于接收DALI调光信号，所述无线通讯单元的数字信号端与所述控制部的数字信号端连接，所述控制部的输出端与所述输入处理单元的控制端连接，所述输出单元的输出端用于连接照明装置；本申请公开的无线恒流调光电路，可实现直接数字化端口的无线接收指令或无线发送指令，具有控制精度高、工作灵活、制作成本低的优点。
The invention discloses a wireless constant current dimming circuit, a PCB board and a driving power supply. The wireless constant current dimming circuit includes an input processing unit, an output unit, a wireless communication unit and a signal processing unit. The signal processing unit includes a control unit. part; the input end of the input processing unit is used to connect to an external power supply mechanism, the output end of the input processing unit is connected to the input end of the output unit and the input end of the signal processing unit, and the wireless communication unit The input end is used to receive the DALI dimming signal, the digital signal end of the wireless communication unit is connected to the digital signal end of the control part, the output end of the control part is connected to the control end of the input processing unit, so The output end of the output unit is used to connect to a lighting device; the wireless constant current dimming circuit disclosed in this application can realize wireless receiving instructions or wireless sending instructions of the direct digital port, and has the advantages of high control accuracy, flexible work, and low production cost. .
Description
技术领域Technical field
本发明涉及驱动电路技术领域，特别涉及一种无线恒流调光电路、PCB板及驱动电源。The invention relates to the technical field of drive circuits, and in particular to a wireless constant current dimming circuit, a PCB board and a drive power supply.
背景技术Background technique
随着LED灯具照明技术的发展，LED灯具已经在贸易、办公、商务等场合得到应用，LED灯的重要构成部件包括驱动电源，驱动电源的质量直接制约了LED灯具工作时的稳定性和可靠性，LED灯具的驱动电源是一种把电源供应转换为特定的电压电流以驱动LED发光的电源转换器；驱动电源根据驱动方式可分为两大类，分别为恒流式驱动电源和稳压式驱动电源，恒流式驱动电源的输出电流是恒定的，而输出的直流电压却随着负载阻值的大小不同在一定范围内变化，负载阻值小，输出电压就低，负载阻值越大，输出电压也就越高；而稳压式驱动电源的输出电压是固定的，而输出的电流却随着负载的增减而变化。With the development of LED lighting technology, LED lamps have been used in trade, office, business and other occasions. The important components of LED lamps include driving power supply. The quality of the driving power supply directly restricts the stability and reliability of LED lamps during operation. , the driving power supply of LED lamps is a power converter that converts the power supply into a specific voltage and current to drive the LED to emit light; the driving power supply can be divided into two categories according to the driving mode, namely constant current driving power supply and voltage stabilized driving power supply. The output current of the driving power supply and the constant current driving power supply is constant, but the output DC voltage changes within a certain range according to the load resistance. The smaller the load resistance, the lower the output voltage, and the larger the load resistance. , the output voltage will be higher; while the output voltage of the regulated driving power supply is fixed, the output current changes with the increase or decrease of the load.
现有的恒流式驱动电源，一般采用类比式控制，即采用类别侦测讯号，利用AD功能，转换判断成MCU内部可控讯号，再做判断和控制，存在控制精确度低、生产成本高的问题。Existing constant current drive power supplies generally adopt analog control, that is, they use category detection signals, use the AD function to convert and judge into controllable signals within the MCU, and then perform judgment and control. There are problems such as low control accuracy and high production costs. The problem.
可见，现有技术还有待改进和提高。It can be seen that the existing technology still needs to be improved and improved.
发明内容Contents of the invention
鉴于上述现有技术的不足之处，本发明的目的在于提供一种无线恒流调光电路，可实现直接数字化端口的无线接收指令或无线发送指令，具有控制精度高、工作灵活、制作成本低的优点。In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a wireless constant current dimming circuit that can realize wireless receiving instructions or wireless sending instructions of a direct digital port, and has high control accuracy, flexible operation, and low production cost. The advantages.
为了达到上述目的，本发明采取了以下技术方案：In order to achieve the above objects, the present invention adopts the following technical solutions:
一种无线恒流调光电路，包括输入处理单元、输出单元、无线通讯单元以及信号处理单元，所述信号处理单元包括控制部；所述输入处理单元的输入端用于连接外部供电机构，所述输入处理单元的输出端分别与所述输出单元的输入端以及所述信号处理单元的输入端连接，所述无线通讯单元的输入端用于接收DALI调光信号，所述无线通讯单元的数字信号端与所述控制部的数字信号端连接，所述控制部的输出端与所述输入处理单元的控制端连接，所述输出单元的输出端用于连接照明装置。A wireless constant current dimming circuit includes an input processing unit, an output unit, a wireless communication unit and a signal processing unit. The signal processing unit includes a control unit; the input end of the input processing unit is used to connect to an external power supply mechanism, so The output end of the input processing unit is connected to the input end of the output unit and the input end of the signal processing unit respectively. The input end of the wireless communication unit is used to receive the DALI dimming signal. The digital signal of the wireless communication unit The signal end is connected to the digital signal end of the control part, the output end of the control part is connected to the control end of the input processing unit, and the output end of the output unit is used to connect to a lighting device.
所述的无线恒流调光电路中，所述信号处理单元还包括反馈部和升压部，所述反馈部的输入端与所述输入处理单元的输出端连接，所述反馈部的供电端分别与所述控制部的供电端以及所述升压部的供电端连接，所述反馈部的反馈端还与所述控制部的反馈端连接；所述升压部还与所述输入处理单元连接，所述升压部的输出端与所述控制部的输入端连接。In the wireless constant current dimming circuit, the signal processing unit further includes a feedback part and a voltage boosting part, the input end of the feedback part is connected to the output end of the input processing unit, and the power supply end of the feedback part are respectively connected to the power supply end of the control part and the power supply end of the boost part, the feedback end of the feedback part is also connected to the feedback end of the control part; the boost part is also connected to the input processing unit The output end of the voltage boosting part is connected to the input end of the control part.
所述的无线恒流调光电路中，所述无线通讯单元包括通讯部和降压部，所述降压部的输入端与所述反馈部的供电端连接，所述降压部的输出端与所述通讯部的供电端连接，用于提供3.3V直流电压；所述通讯部用于接收DALI调光信号，所述通讯部的数字信号端与所述控制部的数字信号端连接。In the wireless constant current dimming circuit, the wireless communication unit includes a communication part and a voltage reducing part. The input end of the voltage reducing part is connected to the power supply end of the feedback part. The output end of the voltage reducing part It is connected to the power supply end of the communication part and used to provide 3.3V DC voltage; the communication part is used to receive the DALI dimming signal, and the digital signal end of the communication part is connected to the digital signal end of the control part.
所述的无线恒流调光电路中，所述输入处理单元包括第一滤波部、整流部、第二滤波部、第一导通部、第二导通部和输出感应部，所述第一滤波部的输入端用于连接外部供电机构，所述第一滤波部的输出端与所述整流部的输入端连接，所述整流部的输出端与所述第二滤波部的输入端连接，所述第二滤波部的输出端与所述输出感应部的输入端连接，所述输出感应部的输出端分别与所述输出单元的输入端以及所述信号处理单元的输入端连接；所述第一导通部分别与所述升压部的输出端以及所述第二滤波部连接，所述第二导通部分别与所述控制部的输出端以及所述输出感应部连接。In the wireless constant current dimming circuit, the input processing unit includes a first filter part, a rectifier part, a second filter part, a first conduction part, a second conduction part and an output sensing part. The first The input end of the filter part is used to connect an external power supply mechanism, the output end of the first filter part is connected to the input end of the rectifier part, and the output end of the rectifier part is connected to the input end of the second filter part. The output end of the second filtering part is connected to the input end of the output sensing part, and the output end of the output sensing part is connected to the input end of the output unit and the input end of the signal processing unit respectively; The first conductive part is connected to the output end of the boost part and the second filter part respectively, and the second conductive part is connected to the output end of the control part and the output sensing part respectively.
所述的无线恒流调光电路中，所述控制部包括第二控制芯片U2，所述第二导通部包括第五二极管D5、第十一电阻R11、第十二电阻R12、第十三电阻R13、第七电容C7和第二场效应管Q2；所述第二控制芯片U2的引脚3和引脚4分别与所述信号解调单元的数字信号端连接，所述第二控制芯片U2的引脚5和引脚10分别与所述反馈部的反馈端和供电端对应连接，所述第二控制芯片U2的引脚2与所述升压部的输出端连接，所述第二控制芯片U2的引脚8分别与所述第五二极管D5的负极以及所述第十一电阻R11的一端连接，所述第二控制芯片U2的引脚6分别与所述第十三电阻R13的另一端、第二场效应管Q2的源极以及第七电容C7的另一端连接；所述第五二极管D5的正极与所述第十二电阻R12的一端连接，所述第十一电阻R11的另一端以及所述第十二电阻R12的另一端分别与所述第二场效应管Q2的栅极连接，所述第二场效应管Q2的漏极以及所述第七电容C7的一端分别与所述输出感应部连接。In the wireless constant current dimming circuit, the control part includes a second control chip U2, and the second conduction part includes a fifth diode D5, an eleventh resistor R11, a twelfth resistor R12, a Thirteen resistors R13, seventh capacitor C7 and second field effect transistor Q2; pins 3 and 4 of the second control chip U2 are respectively connected to the digital signal terminal of the signal demodulation unit, and the second Pin 5 and pin 10 of the control chip U2 are respectively connected to the feedback terminal and the power supply terminal of the feedback part, and pin 2 of the second control chip U2 is connected to the output terminal of the boost part. The pin 8 of the second control chip U2 is connected to the cathode of the fifth diode D5 and one end of the eleventh resistor R11 respectively, and the pin 6 of the second control chip U2 is connected to the tenth resistor R11 respectively. The other end of the three resistors R13, the source of the second field effect transistor Q2 and the other end of the seventh capacitor C7 are connected; the anode of the fifth diode D5 is connected to one end of the twelfth resistor R12, and the The other ends of the eleventh resistor R11 and the other ends of the twelfth resistor R12 are respectively connected to the gate of the second field effect transistor Q2, and the drain of the second field effect transistor Q2 and the seventh One end of the capacitor C7 is respectively connected to the output sensing part.
所述的无线恒流调光电路中，所述第一导通部包括第三二极管D3、第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第一场效应管Q1和第五电容C5，所述升压部包括第一控制芯片U1；所述第三二极管D3的负极以及所述第二电阻R2的一端分别与所述第一控制芯片U1的引脚7连接，所述第三电阻R3的一端与所述第一控制芯片U1的引脚4连接，所述第三二极管D3的正极与所述第一电阻R1的一端连接，所述第三电阻R3的另一端与所述第四电阻R4的一端连接，所述第一电阻R1的另一端、所述第二电阻R2的另一端以及所述第四电阻R4的另一端分别与所述第一场效应管Q1的栅极连接，所述第一场效应管Q1的漏极以及所述第五电容C5的一端分别与所述第二滤波部连接，所述第一场效应管Q1的源极以及所述第五电容C5的另一端分别与所述第三电阻R3的另一端连接；所述第一控制芯片U1的引脚3与所述第二滤波部连接，所述第一控制芯片U1的引脚1与所述输出感应部连接，所述第一控制芯片U1的引脚2与所述第二控制芯片U2的引脚2连接，所述第一控制芯片U1的引脚8与所述反馈部的供电端连接。In the wireless constant current dimming circuit, the first conductive part includes a third diode D3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first field effect Transistor Q1 and fifth capacitor C5, the boost part includes a first control chip U1; the cathode of the third diode D3 and one end of the second resistor R2 are respectively connected to the lead of the first control chip U1. Pin 7 is connected, one end of the third resistor R3 is connected to the pin 4 of the first control chip U1, the anode of the third diode D3 is connected to one end of the first resistor R1, the The other end of the three resistors R3 is connected to one end of the fourth resistor R4, and the other end of the first resistor R1, the other end of the second resistor R2 and the other end of the fourth resistor R4 are respectively connected to the The gate of the first field effect transistor Q1 is connected, the drain of the first field effect transistor Q1 and one end of the fifth capacitor C5 are connected to the second filtering part respectively. The source and the other end of the fifth capacitor C5 are respectively connected to the other end of the third resistor R3; the pin 3 of the first control chip U1 is connected to the second filtering part, and the first control chip U1 Pin 1 of the chip U1 is connected to the output sensing part, pin 2 of the first control chip U1 is connected to pin 2 of the second control chip U2, and pin 8 of the first control chip U1 Connect to the power supply end of the feedback part.
所述的无线恒流调光电路中，所述通讯部包括第三控制芯片U3，所述降压部包括第四控制芯片U4、第十一二极管D11和第二电感L2；所述第四控制芯片U4的引脚4与和引脚5分别与所述第十一二极管D11的负极连接，所述第十一二极管D11的正极与所述反馈部的供电端连接，所述第四控制芯片U4的引脚1和引脚6分别与所述第二电感L2的一端连接，所述第二电感L2的另一端与所述第三控制芯片U3的引脚6连接，用于输出3.3V直流电压；所述第三控制芯片U3的引脚11和引脚10分别与所述第二控制芯片U2的引脚3和引脚4对应连接。In the wireless constant current dimming circuit, the communication part includes a third control chip U3, and the voltage reduction part includes a fourth control chip U4, an eleventh diode D11 and a second inductor L2; Pins 4 and 5 of the fourth control chip U4 are respectively connected to the cathode of the eleventh diode D11, and the anode of the eleventh diode D11 is connected to the power supply end of the feedback part, so The pins 1 and 6 of the fourth control chip U4 are respectively connected to one end of the second inductor L2, and the other end of the second inductor L2 is connected to the pin 6 of the third control chip U3. To output a DC voltage of 3.3V; the pins 11 and 10 of the third control chip U3 are respectively connected to the pins 3 and 4 of the second control chip U2.
所述的无线恒流调光电路中，所述输出单元包括感应输入部和第三滤波部，所述感应输入部的输入端与所述输入处理单元的输出端连接，所述感应输入部的输出端与所述第三滤波部的输入端连接，所述第三滤波部的输出端用于连接照明装置。In the wireless constant current dimming circuit, the output unit includes an inductive input part and a third filter part. The input end of the inductive input part is connected to the output end of the input processing unit. The inductive input part has an The output end is connected to the input end of the third filter part, and the output end of the third filter part is used to connect to a lighting device.
本发明还相应地提供了一种PCB板，所述PCB板上印刷有如上任一所述的无线恒流调光电路。The present invention also correspondingly provides a PCB board printed with any of the above wireless constant current dimming circuits.
本发明还相应地提供了一种驱动电源，所述驱动电源采用如上任一所述的无线恒流调光电路实现工作控制。The present invention also correspondingly provides a driving power supply, which adopts any of the above wireless constant current dimming circuits to achieve work control.
有益效果：Beneficial effects:
本发明提供了一种无线恒流调光电路，无线通讯单元通过无线方式接收DALI调光信号并输出至控制部，通过控制部调整输入处理单元的工作状态，实现恒流调光；通过无线通讯单元的数字信号端连接控制部的数字信号端，实现直接数字化端口无线接收指令或无线发送指令，从而实现监控、控制、回报和调光的功能，避免了数字转类比或类比转数字的层层转换控制，从而避免了讯号转换之前的误差和丢失或干扰，提高了控制精度；进一步地，无需额外设置转换硬件，且无需额外设置检测回报电路，大大降低了驱动电源的制作成本。The invention provides a wireless constant current dimming circuit. The wireless communication unit receives the DALI dimming signal wirelessly and outputs it to the control unit. The control unit adjusts the working state of the input processing unit to realize constant current dimming; through wireless communication The digital signal end of the unit is connected to the digital signal end of the control unit to realize the direct digital port to wirelessly receive instructions or send instructions wirelessly, thereby realizing the functions of monitoring, control, reporting and dimming, and avoiding the layers of digital to analog or analog to digital. Conversion control avoids errors, loss or interference before signal conversion, and improves control accuracy; further, there is no need to set up additional conversion hardware, and there is no need to set up additional detection and reporting circuits, which greatly reduces the manufacturing cost of the driving power supply.
附图说明Description of drawings
图1为本发明提供的无线恒流调光电路的电路框图；Figure 1 is a circuit block diagram of a wireless constant current dimming circuit provided by the present invention;
图2为本发明提供的输入处理单元和输出单元的电路结构图；Figure 2 is a circuit structure diagram of an input processing unit and an output unit provided by the present invention;
图3为本发明提供的信号处理单元的电路结构图；Figure 3 is a circuit structure diagram of the signal processing unit provided by the present invention;
图4为本发明提供的无线通讯单元的电路结构图。Figure 4 is a circuit structure diagram of the wireless communication unit provided by the present invention.
主要元件符号说明：1-输入处理单元、11-第一滤波部、12-整流部、13-第二滤波部、14-第一导通部、15-第二导通部、16-输出感应部、2-输出单元、21-感应输入部、22-第三滤波部、3-无线通讯单元、31-降压部、32-通讯部、33-隔离部、4-信号处理单元、41-控制部、42-反馈部、43-升压部。Main component symbol description: 1-input processing unit, 11-first filter part, 12-rectifier part, 13-second filter part, 14-first conduction part, 15-second conduction part, 16-output induction Department, 2-output unit, 21-inductive input part, 22-third filter part, 3-wireless communication unit, 31-voltage reduction part, 32-communication part, 33-isolation part, 4-signal processing unit, 41- Control part, 42-feedback part, 43-boost part.
具体实施方式Detailed ways
本发明提供了一种无线恒流调光电路、PCB板及驱动电源，为使本发明的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本发明作进一步详细说明。The present invention provides a wireless constant current dimming circuit, a PCB board and a driving power supply. In order to make the purpose, technical solution and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
在本发明的描述中，需要理解的是，术语“安装”、“连接”等应做广义理解，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the description of the present invention, it should be understood that the terms "installation", "connection", etc. should be understood in a broad sense. For those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances. .
请参阅图1至图4，本发明提供了一种无线恒流调光电路，包括输入处理单元1、输出单元2、无线通讯单元3以及信号处理单元4，所述信号处理单元4包括控制部41；所述输入处理单元1的输入端用于连接外部供电机构，所述输入处理单元1的输出端分别与所述输出单元2的输入端以及所述信号处理单元4的输入端连接，所述无线通讯单元3的输入端用于接收DALI调光信号，所述无线通讯单元3的数字信号端与所述控制部41的数字信号端连接，所述控制部41的输出端与所述输入处理单元1的控制端连接，所述输出单元2的输出端用于连接照明装置。Please refer to Figures 1 to 4. The present invention provides a wireless constant current dimming circuit, which includes an input processing unit 1, an output unit 2, a wireless communication unit 3 and a signal processing unit 4. The signal processing unit 4 includes a control unit 41; The input end of the input processing unit 1 is used to connect to an external power supply mechanism, and the output end of the input processing unit 1 is connected to the input end of the output unit 2 and the input end of the signal processing unit 4 respectively, so The input end of the wireless communication unit 3 is used to receive the DALI dimming signal, the digital signal end of the wireless communication unit 3 is connected to the digital signal end of the control part 41, and the output end of the control part 41 is connected to the input The control end of the processing unit 1 is connected, and the output end of the output unit 2 is used to connect to a lighting device.
本申请公开的无线恒流调光电路，包括无线通讯单元3和信号处理单元4，无线通讯单元3通过无线方式接收DALI调光信号并输出至控制部41，通过控制部41调整输入处理单元1的工作状态，实现恒流调光；通过无线通讯单元3的数字信号端连接控制部41的数字信号端，实现直接数字化端口无线接收指令或无线发送指令，从而实现监控、控制、回报和调光的功能，避免了数字转类比或类比转数字的层层转换控制，从而避免了讯号转换之前的误差和丢失或干扰，提高了控制精度；进一步地，无需额外设置转换硬件，且无需额外设置检测回报电路，大大降低了驱动电源的制作成本。The wireless constant current dimming circuit disclosed in this application includes a wireless communication unit 3 and a signal processing unit 4. The wireless communication unit 3 receives the DALI dimming signal wirelessly and outputs it to the control unit 41, and adjusts the input processing unit 1 through the control unit 41. working state to achieve constant current dimming; connect the digital signal end of the wireless communication unit 3 to the digital signal end of the control unit 41 to achieve direct digital port wireless reception of instructions or wireless transmission of instructions, thereby achieving monitoring, control, reporting and dimming. The function avoids the layer-by-layer conversion control of digital to analog or analog to digital, thereby avoiding errors, loss or interference before signal conversion, and improving control accuracy; further, there is no need to set up additional conversion hardware, and no need to set up additional detection The feedback circuit greatly reduces the manufacturing cost of the driving power supply.
进一步地，请参阅图1和图3，所述信号处理单元4还包括反馈部42和升压部43，所述反馈部42的输入端与所述输入处理单元1的输出端连接，所述反馈部42的供电端分别与所述控制部41的供电端以及所述升压部43的供电端连接，所述反馈部42的反馈端还与所述控制部41的反馈端连接；所述升压部43还与所述输入处理单元1连接，所述升压部43的输出端与所述控制部41的输入端连接。Further, please refer to Figures 1 and 3. The signal processing unit 4 also includes a feedback section 42 and a boost section 43. The input end of the feedback section 42 is connected to the output end of the input processing unit 1. The power supply end of the feedback part 42 is connected to the power supply end of the control part 41 and the power supply end of the boost part 43 respectively, and the feedback end of the feedback part 42 is also connected to the feedback end of the control part 41; The voltage boosting part 43 is also connected to the input processing unit 1 , and the output end of the voltage boosting part 43 is connected to the input end of the control part 41 .
进一步地，请参阅图1和图4，所述无线通讯单元3包括通讯部32和降压部31，所述降压部31的输入端与所述反馈部42的供电端连接，所述降压部31的输出端与所述通讯部32的供电端连接，用于提供3.3V直流电压；所述通讯部32用于接收DALI调光信号，所述通讯部32的数字信号端与所述控制部41的数字信号端连接。Further, please refer to Figures 1 and 4. The wireless communication unit 3 includes a communication part 32 and a voltage reducing part 31. The input end of the voltage reducing part 31 is connected to the power supply end of the feedback part 42. The voltage reducing part 31 The output end of the pressure part 31 is connected to the power supply end of the communication part 32 for providing 3.3V DC voltage; the communication part 32 is used for receiving the DALI dimming signal, and the digital signal end of the communication part 32 is connected to the The digital signal terminal of the control unit 41 is connected.
在本实施例中，请参阅图4，所述通讯部32包括第三控制芯片U3，所述降压部31包括第四控制芯片U4、第十一二极管D11和第二电感L2；所述第四控制芯片U4的引脚4与和引脚5分别与所述第十一二极管D11的负极连接，所述第十一二极管D11的正极与所述反馈部42的供电端连接，所述第四控制芯片U4的引脚1和引脚6分别与所述第二电感L2的一端连接，所述第二电感L2的另一端与所述第三控制芯片U3的引脚6连接，用于输出3.3V直流电压；所述第三控制芯片U3的引脚11和引脚10分别与所述第二控制芯片U2的引脚3和引脚4对应连接。In this embodiment, please refer to FIG. 4 , the communication part 32 includes a third control chip U3, and the voltage reducing part 31 includes a fourth control chip U4, an eleventh diode D11 and a second inductor L2; Pins 4 and 5 of the fourth control chip U4 are respectively connected to the cathode of the eleventh diode D11, and the anode of the eleventh diode D11 is connected to the power supply end of the feedback part 42. connected, pin 1 and pin 6 of the fourth control chip U4 are respectively connected to one end of the second inductor L2, and the other end of the second inductor L2 is connected to pin 6 of the third control chip U3 connection for outputting 3.3V DC voltage; pin 11 and pin 10 of the third control chip U3 are respectively connected to pin 3 and pin 4 of the second control chip U2.
在本实施例中，所述第四控制芯片U4的型号为DIO62845B；所述第三控制芯片U3的引脚11为RX引脚，所述第三控制芯片U3的引脚10为TX引脚，RX引脚接受3.3V或5V的逻辑输入，且具有280nS的毛刺屏蔽功能，可有效消除干扰信号的影响；所述第三控制芯片U3的引脚30为TX引脚，TX引脚可以发送3.3V逻辑或者选择开漏输出，通过RX引脚和TX引脚的配合，可实现数字信号的输入和输出。In this embodiment, the model of the fourth control chip U4 is DIO62845B; the pin 11 of the third control chip U3 is the RX pin, and the pin 10 of the third control chip U3 is the TX pin. The RX pin accepts 3.3V or 5V logic input and has a 280nS glitch shielding function, which can effectively eliminate the influence of interference signals; pin 30 of the third control chip U3 is the TX pin, and the TX pin can send 3.3 V logic or select open-drain output, through the cooperation of RX pin and TX pin, digital signal input and output can be realized.
在本实施例中，所述通讯部32采用无线协议的Thread技术，将DALI调光信号采用无线传输双向到控制部41；所述通讯部32可以是WIFI模块、BLE蓝牙模块、Zigbee模块、涂鸦模块、Matter模块或CASAMBI模块；意思只要是无线传输控制模块都可以使用同样的数字命令控制模式，来达到无线控制DALI数字电源的目的。In this embodiment, the communication unit 32 uses the Thread technology of the wireless protocol to wirelessly transmit the DALI dimming signal to the control unit 41 in two directions; the communication unit 32 can be a WIFI module, BLE Bluetooth module, Zigbee module, Tuya module, Matter module or CASAMBI module; it means that any wireless transmission control module can use the same digital command control mode to achieve the purpose of wirelessly controlling DALI digital power supply.
进一步地，请参阅图1和图2，所述输入处理单元1包括第一滤波部11、整流部12、第二滤波部13、第一导通部14、第二导通部15和输出感应部16，所述第一滤波部11的输入端用于连接外部供电机构，所述第一滤波部11的输出端与所述整流部12的输入端连接，所述整流部12的输出端与所述第二滤波部13的输入端连接，所述第二滤波部13的输出端与所述输出感应部16的输入端连接，所述输出感应部16的输出端分别与所述输出单元2的输入端以及所述信号处理单元4的输入端连接；所述第一导通部14分别与所述升压部43的输出端以及所述第二滤波部13连接，所述第二导通部15分别与所述控制部41的输出端以及所述输出感应部16连接。Further, please refer to Figures 1 and 2. The input processing unit 1 includes a first filter part 11, a rectifier part 12, a second filter part 13, a first conduction part 14, a second conduction part 15 and an output sensor. part 16, the input end of the first filter part 11 is used to connect to an external power supply mechanism, the output end of the first filter part 11 is connected to the input end of the rectifier part 12, and the output end of the rectifier part 12 is connected to The input end of the second filter part 13 is connected, the output end of the second filter part 13 is connected to the input end of the output induction part 16 , the output end of the output induction part 16 is respectively connected to the output unit 2 is connected to the input end of the signal processing unit 4; the first conductive part 14 is connected to the output end of the boost part 43 and the second filter part 13 respectively, and the second conductive part 14 The portion 15 is respectively connected to the output end of the control portion 41 and the output sensing portion 16 .
进一步地，请参阅图2和图3，所述控制部41包括第二控制芯片U2，所述第二导通部15包括第五二极管D5、第十一电阻R11、第十二电阻R12、第十三电阻R13、第七电容C7和第二场效应管Q2；所述第二控制芯片U2的引脚3和引脚4分别与所述信号解调单元的数字信号端连接，所述第二控制芯片U2的引脚5和引脚10分别与所述反馈部42的反馈端和供电端对应连接，所述第二控制芯片U2的引脚2与所述升压部43的输出端连接，所述第二控制芯片U2的引脚8分别与所述第五二极管D5的负极以及所述第十一电阻R11的一端连接，所述第二控制芯片U2的引脚6分别与所述第十三电阻R13的另一端、第二场效应管Q2的源极以及第七电容C7的另一端连接；所述第五二极管D5的正极与所述第十二电阻R12的一端连接，所述第十一电阻R11的另一端以及所述第十二电阻R12的另一端分别与所述第二场效应管Q2的栅极连接，所述第二场效应管Q2的漏极以及所述第七电容C7的一端分别与所述输出感应部16连接。Further, please refer to Figures 2 and 3. The control part 41 includes a second control chip U2, and the second conductive part 15 includes a fifth diode D5, an eleventh resistor R11, and a twelfth resistor R12. , the thirteenth resistor R13, the seventh capacitor C7 and the second field effect transistor Q2; the pin 3 and the pin 4 of the second control chip U2 are respectively connected to the digital signal terminal of the signal demodulation unit, the Pin 5 and pin 10 of the second control chip U2 are respectively connected to the feedback terminal and the power supply terminal of the feedback part 42 , and pin 2 of the second control chip U2 is connected to the output terminal of the boost part 43 connection, the pin 8 of the second control chip U2 is respectively connected to the cathode of the fifth diode D5 and one end of the eleventh resistor R11, and the pin 6 of the second control chip U2 is respectively connected to The other end of the thirteenth resistor R13, the source of the second field effect transistor Q2 and the other end of the seventh capacitor C7 are connected; the anode of the fifth diode D5 is connected to one end of the twelfth resistor R12 connection, the other end of the eleventh resistor R11 and the other end of the twelfth resistor R12 are respectively connected to the gate of the second field effect transistor Q2, and the drain of the second field effect transistor Q2 and One end of the seventh capacitor C7 is connected to the output sensing part 16 respectively.
进一步地，请参阅图2和图3，所述第一导通部14包括第三二极管D3、第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第一场效应管Q1和第五电容C5，所述升压部43包括第一控制芯片U1；所述第三二极管D3的负极以及所述第二电阻R2的一端分别与所述第一控制芯片U1的引脚7连接，所述第三电阻R3的一端与所述第一控制芯片U1的引脚4连接，所述第三二极管D3的正极与所述第一电阻R1的一端连接，所述第三电阻R3的另一端与所述第四电阻R4的一端连接，所述第一电阻R1的另一端、所述第二电阻R2的另一端以及所述第四电阻R4的另一端分别与所述第一场效应管Q1的栅极连接，所述第一场效应管Q1的漏极以及所述第五电容C5的一端分别与所述第二滤波部13连接，所述第一场效应管Q1的源极以及所述第五电容C5的另一端分别与所述第三电阻R3的另一端连接；所述第一控制芯片U1的引脚3与所述第二滤波部13连接，所述第一控制芯片U1的引脚1与所述输出感应部16连接，所述第一控制芯片U1的引脚2与所述第二控制芯片U2的引脚2连接，所述第一控制芯片U1的引脚8与所述反馈部42的供电端连接。Further, please refer to Figures 2 and 3. The first conductive part 14 includes a third diode D3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first field Effect transistor Q1 and fifth capacitor C5, the boosting part 43 includes a first control chip U1; the cathode of the third diode D3 and one end of the second resistor R2 are connected to the first control chip U1 respectively. The pin 7 is connected, one end of the third resistor R3 is connected to the pin 4 of the first control chip U1, the anode of the third diode D3 is connected to one end of the first resistor R1, so The other end of the third resistor R3 is connected to one end of the fourth resistor R4. The other end of the first resistor R1, the other end of the second resistor R2 and the other end of the fourth resistor R4 are respectively connected to The gate of the first field effect transistor Q1 is connected, the drain of the first field effect transistor Q1 and one end of the fifth capacitor C5 are connected to the second filter part 13 respectively. The source of the tube Q1 and the other end of the fifth capacitor C5 are respectively connected to the other end of the third resistor R3; the pin 3 of the first control chip U1 is connected to the second filter part 13, so The pin 1 of the first control chip U1 is connected to the output sensing part 16, the pin 2 of the first control chip U1 is connected to the pin 2 of the second control chip U2, and the first control chip Pin 8 of U1 is connected to the power supply end of the feedback part 42 .
在本实施例中，请参阅图2，所述第一滤波部11包括第一励磁线圈LF1和第二励磁线圈LF2，所述整流部12包括第一整流桥BD1、第一电感L1和第二电容C2，所述第二滤波部13包括第四励磁线圈LF4、第一二极管D1、第二二极管D2和第四电容C4，所述输出感应部16包括变压器T1的一次侧；所述第一励磁线圈LF1的一端用于连接外部供电机构，所述外部供电机构可以是市电，所述第一励磁线圈LF1的另一端与所述第二励磁线圈LF2的一端连接，所述第二励磁线圈LF2的另一端与所述第一整流桥BD1的引脚2和引脚4连接，所述第二励磁线圈LF2的另一端还分别与所述第十二二极管D12的正极以及第十三二极管D13的正极连接；所述第一整流桥BD1的引脚3与所述第一电感L1的一端以及所述第二电容C2的一端连接，所述第一电感L1的另一端分别与所述第四励磁线圈LF4的引脚1、所述第一控制芯片U1的引脚3、所述第一二极管D1的正极以及所述第四电容C4的一端连接，所述第四励磁线圈LF4的引脚6与所述第二二极管D2的正极连接，所述第四励磁线圈LF4的引脚5与所述第一控制芯片U1的引脚5连接，所述第二二极管D1的负极、第二二极管D2的负极以及所第四电容C4的负极分别与所述变压器T1的一次侧的引脚5连接，所述变压器T1的一次侧的引脚5还与所述第一控制芯片U1的引脚1连接；所述第二场效应管Q2的漏极以及所述第七电容C7的一端分别与所述变压器T1的一次侧的引脚3连接。In this embodiment, please refer to FIG. 2 , the first filter part 11 includes a first excitation coil LF1 and a second excitation coil LF2, and the rectifier part 12 includes a first rectifier bridge BD1, a first inductor L1 and a second Capacitor C2, the second filter part 13 includes a fourth excitation coil LF4, a first diode D1, a second diode D2 and a fourth capacitor C4, the output induction part 16 includes the primary side of the transformer T1; One end of the first excitation coil LF1 is used to connect to an external power supply mechanism. The external power supply mechanism may be commercial power. The other end of the first excitation coil LF1 is connected to one end of the second excitation coil LF2. The other end of the second excitation coil LF2 is connected to the pin 2 and the pin 4 of the first rectifier bridge BD1, and the other end of the second excitation coil LF2 is also connected to the anode and the anode of the twelfth diode D12 respectively. The anode of the thirteenth diode D13 is connected; the pin 3 of the first rectifier bridge BD1 is connected to one end of the first inductor L1 and one end of the second capacitor C2, and the other end of the first inductor L1 One end is respectively connected to the pin 1 of the fourth excitation coil LF4, the pin 3 of the first control chip U1, the anode of the first diode D1 and one end of the fourth capacitor C4. The pin 6 of the fourth excitation coil LF4 is connected to the anode of the second diode D2, and the pin 5 of the fourth excitation coil LF4 is connected to the pin 5 of the first control chip U1. The cathode of the second diode D1, the cathode of the second diode D2 and the cathode of the fourth capacitor C4 are respectively connected to the pin 5 of the primary side of the transformer T1, and the pin 5 of the primary side of the transformer T1 It is also connected to the pin 1 of the first control chip U1; the drain of the second field effect transistor Q2 and one end of the seventh capacitor C7 are respectively connected to the pin 3 of the primary side of the transformer T1.
在本实施例中，请参阅图3，所述反馈部42包括第八二极管D8、第九二极管D9、第十二极管D10、第三三极管Q3、变压器T1的二次侧；所述变压器T1的二次侧与所述变压器T1的一次侧感应连接，所述变压器T1二次侧的引脚1与所述第二控制芯片U2的引脚5连接，并通过第十二极管D10与所述第三三极管Q3的集电极连接，所述第三三极管Q3的基极通过第四稳压二极管ZD4接地；所述第三三极管Q3的发射极通过所述第九二极管D9与所述第二控制芯片U2的引脚10连接，并通过所述第八二极管D8与所述第一控制芯片U1的引脚8连接。In this embodiment, please refer to FIG. 3 , the feedback part 42 includes an eighth diode D8, a ninth diode D9, a twelfth diode D10, a third transistor Q3, and the secondary of the transformer T1. side; the secondary side of the transformer T1 is inductively connected to the primary side of the transformer T1, and the pin 1 of the secondary side of the transformer T1 is connected to the pin 5 of the second control chip U2, and through the tenth The diode D10 is connected to the collector of the third triode Q3, the base of the third triode Q3 is grounded through the fourth Zener diode ZD4; the emitter of the third triode Q3 is grounded through The ninth diode D9 is connected to the pin 10 of the second control chip U2, and is connected to the pin 8 of the first control chip U1 through the eighth diode D8.
在本实施例中，所述第一控制芯片U1的型号为XP3323，所述第二控制芯片U2的型号为XP3309，第一控制芯片U1和第二控制芯片U2构成Boost+Flyback中小功率平台，具有功率密度高、效率高和功率范围大的优点；其中，XP3323为升压控制器，XP3309为反激电源，用于实现隔离降压和控制调光；进一步地，第二控制芯片U2根据无线通讯单元3所反馈的数字信号，生成控制指令，并通过引脚8输出至第二场效应管Q2，以调整第二场效应管Q2的工作状态，从而实现调光。In this embodiment, the model of the first control chip U1 is XP3323, and the model of the second control chip U2 is XP3309. The first control chip U1 and the second control chip U2 constitute a Boost+Flyback small and medium power platform, with It has the advantages of high power density, high efficiency and wide power range; among them, XP3323 is a boost controller and XP3309 is a flyback power supply, used to achieve isolation buck and control dimming; further, the second control chip U2 is based on wireless communication The digital signal fed back by unit 3 generates a control instruction and is output to the second field effect transistor Q2 through pin 8 to adjust the working state of the second field effect transistor Q2 to achieve dimming.
在本实施例中，所述变压器T1二次侧的引脚1与所述第二控制芯片U2的引脚5连接，实现OVP过压保护，可有效防止驱动电源向敏感器件输入过高的电压，提高恒压调光电路工作时的安全度。In this embodiment, pin 1 of the secondary side of the transformer T1 is connected to pin 5 of the second control chip U2 to implement OVP overvoltage protection, which can effectively prevent the driving power supply from inputting excessive voltage to sensitive devices. , improve the safety when the constant voltage dimming circuit is working.
进一步地，请参阅图1和图2，所述输出单元2包括感应输入部21和第三滤波部22，所述感应输入部21的输入端与所述输入处理单元1的输出端连接，所述感应输入部21的输出端与所述第三滤波部22的输入端连接，所述第三滤波部22的输出端用于连接照明装置。Further, please refer to Figures 1 and 2. The output unit 2 includes an inductive input part 21 and a third filtering part 22. The input end of the inductive input part 21 is connected to the output end of the input processing unit 1, so The output end of the induction input part 21 is connected to the input end of the third filter part 22, and the output end of the third filter part 22 is used to connect to a lighting device.
在本实施例中，请参阅图2，所述感应输入部21包括变压器T1的三次侧、第六二极管D6和第七二极管D7，所述第三滤波部22包括第二滤波电容EC2、第三滤波电容EC3、第九电容C9和第三励磁线圈LF3，所述变压器T1的三次侧与所述变压器T1的一次侧感应连接，所述变压器T1三次侧的引脚10分别与所述第六二极管D6的正极以及所述第七二极管D7的正极连接，所述第六二极管D6的负极以及所述第七二极管D7的负极分别与所述第二滤波电容EC2的正极、第三滤波电容EC3的正极、第九电容C9的一端以及所述第三励磁线圈LF3的一端连接，所述第二滤波电容EC2的负极、第三滤波电容EC3的负极、第九电容C9的另一端以及所述变压器T1三次侧的引脚11分别接地，所述第三励磁线圈LF3的另一端用于连接照明装置。In this embodiment, please refer to Figure 2. The inductive input part 21 includes the third side of the transformer T1, a sixth diode D6 and a seventh diode D7, and the third filter part 22 includes a second filter capacitor. EC2, the third filter capacitor EC3, the ninth capacitor C9 and the third excitation coil LF3, the tertiary side of the transformer T1 is inductively connected to the primary side of the transformer T1, and the pin 10 of the tertiary side of the transformer T1 is respectively connected to the The anode of the sixth diode D6 and the anode of the seventh diode D7 are connected, and the cathode of the sixth diode D6 and the cathode of the seventh diode D7 are respectively connected to the second filter. The positive electrode of the capacitor EC2, the positive electrode of the third filter capacitor EC3, one end of the ninth capacitor C9 and one end of the third excitation coil LF3 are connected, the negative electrode of the second filter capacitor EC2, the negative electrode of the third filter capacitor EC3, and the third excitation coil LF3 are connected. The other end of the nine-capacitor C9 and the pin 11 on the third side of the transformer T1 are respectively connected to the ground. The other end of the third excitation coil LF3 is used to connect to a lighting device.
本发明还相应地提供了一种PCB板，所述PCB板上印刷有如上任一所述的无线恒流调光电路。The present invention also correspondingly provides a PCB board printed with any of the above wireless constant current dimming circuits.
本发明还相应地提供了一种驱动电源，所述驱动电源采用如上任一所述的无线恒流调光电路实现工作控制。The present invention also correspondingly provides a driving power supply, which adopts any of the above wireless constant current dimming circuits to achieve work control.
可以理解的是，对本领域普通技术人员来说，可以根据本发明的技术方案及其发明构思加以等同替换或改变，而所有这些改变或替换都应属于本发明的保护范围。It can be understood that, for those of ordinary skill in the art, equivalent substitutions or changes can be made based on the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.
Claims (10)
1. The wireless constant current dimming circuit is characterized by comprising an input processing unit, an output unit, a wireless communication unit and a signal processing unit, wherein the signal processing unit comprises a control part; the input end of the input processing unit is used for being connected with an external power supply mechanism, the output end of the input processing unit is respectively connected with the input end of the output unit and the input end of the signal processing unit, the input end of the wireless communication unit is used for receiving DALI dimming signals, the digital signal end of the wireless communication unit is connected with the digital signal end of the control part, the output end of the control part is connected with the control end of the input processing unit, and the output end of the output unit is used for being connected with a lighting device.
2. The wireless constant current dimming circuit according to claim 1, wherein the signal processing unit further comprises a feedback part and a boost part, an input end of the feedback part is connected with an output end of the input processing unit, a power supply end of the feedback part is respectively connected with a power supply end of the control part and a power supply end of the boost part, and a feedback end of the feedback part is further connected with a feedback end of the control part; the boosting part is also connected with the input processing unit, and the output end of the boosting part is connected with the input end of the control part.
3. The wireless constant current dimming circuit according to claim 2, wherein the wireless communication unit comprises a communication part and a voltage reduction part, an input end of the voltage reduction part is connected with a power supply end of the feedback part, and an output end of the voltage reduction part is connected with the power supply end of the communication part and is used for providing 3.3V direct current voltage; the communication part is used for receiving the DALI dimming signal, and the digital signal end of the communication part is connected with the digital signal end of the control part.
4. The wireless constant current dimming circuit according to claim 2, wherein the input processing unit comprises a first filtering part, a rectifying part, a second filtering part, a first conducting part, a second conducting part and an output sensing part, the input end of the first filtering part is used for being connected with an external power supply mechanism, the output end of the first filtering part is connected with the input end of the rectifying part, the output end of the rectifying part is connected with the input end of the second filtering part, the output end of the second filtering part is connected with the input end of the output sensing part, and the output end of the output sensing part is respectively connected with the input end of the output unit and the input end of the signal processing unit; the first conducting part is respectively connected with the output end of the boosting part and the second filtering part, and the second conducting part is respectively connected with the output end of the control part and the output sensing part.
5. The wireless constant current dimming circuit according to claim 4, wherein the control part comprises a second control chip U2, and the second conducting part comprises a fifth diode D5, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a seventh capacitor C7 and a second field effect transistor Q2; the pin 3 and the pin 4 of the second control chip U2 are respectively connected with the digital signal end of the signal demodulation unit, the pin 5 and the pin 10 of the second control chip U2 are respectively connected with the feedback end and the power supply end of the feedback part, the pin 2 of the second control chip U2 is connected with the output end of the boost part, the pin 8 of the second control chip U2 is respectively connected with the negative electrode of the fifth diode D5 and one end of the eleventh resistor R11, and the pin 6 of the second control chip U2 is respectively connected with the other end of the thirteenth resistor R13, the source electrode of the second field effect transistor Q2 and the other end of the seventh capacitor C7; the positive electrode of the fifth diode D5 is connected to one end of the twelfth resistor R12, the other end of the eleventh resistor R11 and the other end of the twelfth resistor R12 are respectively connected to the gate of the second field effect transistor Q2, and the drain of the second field effect transistor Q2 and one end of the seventh capacitor C7 are respectively connected to the output sensing portion.
6. The wireless constant current dimming circuit according to claim 5, wherein the first conducting portion comprises a third diode D3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first field effect transistor Q1 and a fifth capacitor C5, and the boosting portion comprises a first control chip U1; the negative electrode of the third diode D3 and one end of the second resistor R2 are respectively connected with the pin 7 of the first control chip U1, one end of the third resistor R3 is connected with the pin 4 of the first control chip U1, the positive electrode of the third diode D3 is connected with one end of the first resistor R1, the other end of the third resistor R3 is connected with one end of the fourth resistor R4, the other end of the first resistor R1, the other end of the second resistor R2 and the other end of the fourth resistor R4 are respectively connected with the gate of the first field effect transistor Q1, the drain electrode of the first field effect transistor Q1 and one end of the fifth capacitor C5 are respectively connected with the second filter part, and the source electrode of the first field effect transistor Q1 and the other end of the fifth capacitor C5 are respectively connected with the other end of the third resistor R3; the pin 3 of the first control chip U1 is connected with the second filtering part, the pin 1 of the first control chip U1 is connected with the output sensing part, the pin 2 of the first control chip U1 is connected with the pin 2 of the second control chip U2, and the pin 8 of the first control chip U1 is connected with the power supply end of the feedback part.
7. The wireless constant current dimming circuit according to claim 5, wherein the communication part comprises a third control chip U3, and the step-down part comprises a fourth control chip U4, an eleventh diode D11, and a second inductor L2; the pin 4 and the pin 5 of the fourth control chip U4 are respectively connected with the negative electrode of the eleventh diode D11, the positive electrode of the eleventh diode D11 is connected with the power supply end of the feedback part, the pin 1 and the pin 6 of the fourth control chip U4 are respectively connected with one end of the second inductor L2, and the other end of the second inductor L2 is connected with the pin 6 of the third control chip U3 for outputting 3.3V dc voltage; the pin 11 and the pin 10 of the third control chip U3 are respectively connected with the pin 3 and the pin 4 of the second control chip U2 correspondingly.
8. The wireless constant current dimming circuit according to claim 1, wherein the output unit comprises an induction input part and a third filtering part, an input end of the induction input part is connected with an output end of the input processing unit, an output end of the induction input part is connected with an input end of the third filtering part, and an output end of the third filtering part is used for being connected with a lighting device.
9. A PCB board, wherein the wireless constant current dimming circuit according to any one of claims 1 to 8 is printed on the PCB board.
10. A driving power supply, characterized in that the driving power supply adopts the wireless constant current dimming circuit as claimed in any one of claims 1-8 to realize operation control.
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