An LED lamp control circuit and LED

Abstract

This application provides an LED lighting control circuit and an LED. The control circuit includes an input port, an output port, and a control module. The input port is connected to a first power supply; the output port is connected to the LED. The control module is equipped with a programming line and a dimming lead. When the dimming lead is connected to a second power supply, the second power supply supplies power to the control module through the dimming lead. The control module receives and stores the lighting control program through the programming line. When the programming line and the dimming lead are short-circuited, the control module reads the lighting control program and controls the operation of the lighting fixture according to the lighting control program. This achieves the effect of being able to change the lighting control program of the LED lighting control circuit even after it has left the factory.

Description

Technical Field

[0001] This application relates to the field of lighting fixtures, and more particularly to an LED lighting fixture control circuit and an LED. Background Technology

[0002] Currently, intelligent control of LED lights mainly relies on external signals or the execution of internal built-in programs; for example, the function of different power outputs at different times. The light control program is set and stored before the product leaves the factory; however, changing the program after the product leaves the factory usually requires specialized equipment, which is inconvenient. Utility Model Content

[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0004] The purpose of this application is to at least partially solve one of the technical problems existing in the related technologies. The embodiments of this application provide an LED lighting control circuit and an LED, which realizes the effect of changing the lamp control program of the LED lighting control circuit after it has left the factory.

[0005] An embodiment of the first aspect of this application provides an LED lighting control circuit, comprising:

[0006] An input port, the input port being used to connect to a first power source;

[0007] An output port, which is used to connect to an LED;

[0008] The control module is equipped with a programming line and a dimming lead;

[0009] Specifically, when the dimming lead is connected to the second power supply, the second power supply supplies power to the control module through the dimming lead, and the control module receives and stores the lamp control program through the programming line; when the programming line and the dimming lead are short-circuited, the control module reads the lamp control program and controls the LED to operate according to the lamp control program.

[0010] According to certain embodiments of the first aspect of this application, the input port includes a live wire port and a neutral wire port, the live wire port being used to connect to a live wire and the neutral wire port being used to connect to a neutral wire.

[0011] According to certain embodiments of the first aspect of this application, the output port includes a positive port and a negative port, the positive port being used to connect to the positive terminal of an LED, and the negative port being used to connect to the negative terminal of an LED.

[0012] According to certain embodiments of the first aspect of this application, the control module is provided with a control chip.

[0013] According to certain embodiments of the first aspect of this application, the control chip is connected to a programming socket.

[0014] According to certain embodiments of the first aspect of this application, the control chip is connected to a thermistor.

[0015] According to certain embodiments of the first aspect of this application, the control chip is connected to an optocoupler circuit.

[0016] According to certain embodiments of the first aspect of this application, the LED lighting control circuit includes a first voltage regulator circuit. The first voltage regulator circuit includes a first diode, a first transistor, a second resistor, a first Zener diode, a first voltage regulator chip, a first capacitor, a second capacitor, and a fourth capacitor. The anode of the first diode is connected to the dimming lead. The cathode of the first diode is connected to one end of the second resistor and the collector of the first transistor. The other end of the second resistor is connected to the base of the first transistor and the cathode of the first Zener diode. The emitter of the first transistor is connected to one end of the first capacitor and the input terminal of the first voltage regulator chip. One end of the second capacitor and one end of the fourth capacitor are connected to the output terminal of the first voltage regulator chip. The other ends of the first capacitor, the second capacitor, the fourth capacitor, the anode of the first Zener diode, and the ground terminal of the first voltage regulator chip are grounded.

[0017] According to certain embodiments of the first aspect of this application, the LED lighting control circuit includes a second voltage regulator circuit. The second voltage regulator circuit includes a sixth resistor, a twelfth resistor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a second voltage regulator chip, a fifth transistor, a second Zener diode, and a thirteenth resistor. One end of the twelfth resistor is connected to one end of the sixth resistor. The other end of the sixth resistor, one end of the fifth capacitor, and one end of the sixth capacitor are connected to the output terminal of the second voltage regulator chip. One end of the thirteenth resistor is connected to the collector of the fifth transistor. The emitter of the fifth transistor and one end of the seventh capacitor are connected to the input terminal of the second voltage regulator chip. The other end of the thirteenth resistor and the cathode of the second Zener diode are connected to the base of the fifth diode. The anode of the second Zener diode, the other end of the fifth capacitor, the other end of the sixth capacitor, the other end of the seventh capacitor, and the ground terminal of the second voltage regulator chip are grounded.

[0018] According to a second aspect of this application, an LED is provided with an LED lighting control circuit as described in the first aspect of this application, wherein the LED is connected to the output port of the LED lighting control circuit.

[0019] The above solution has at least the following beneficial effects: the input port is connected to a first power supply, and the output port is connected to the LED. The first power supply powers the LED and the LED lighting control circuit. Even after the LED lighting control circuit leaves the factory, it can still be connected to a host computer via a programming cable. The host computer sends the lighting control program to the control module via the programming cable. The control module receives the lighting control program via the programming cable and stores it in its local memory. The dimming lead is connected to a second power supply, which powers the control module via the dimming lead. In this case, the input port does not need to be connected to the first power supply and does not need to power the control module. When the programming cable and the dimming lead are shorted, the control module detects the short circuit signal, automatically reads the lighting control program stored in its local memory, and controls the LED operation according to the program. This LED lighting control circuit achieves the effect of allowing the lighting control program to be modified even after the LED lighting control circuit has left the factory. Attached Figure Description

[0020] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0021] Figure 1 This is a circuit diagram of an LED lighting control circuit;

[0022] Figure 2 It is the circuit diagram of the control chip;

[0023] Figure 3 This is the circuit diagram of the first voltage regulator circuit;

[0024] Figure 4 This is the circuit diagram of the second voltage regulator circuit;

[0025] Figure 5 This is the circuit diagram of the integrated socket for the programming cable and dimming lead;

[0026] Figure 6 It is the circuit diagram for burning the socket. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0030] An embodiment of this application provides an LED lighting control circuit 100.

[0031] Reference Figure 1 The LED lighting control circuit 100 includes an input port 120, an output port 130, and a control module 110.

[0032] The input port 120 is connected to the first power supply; the output port 130 is connected to the LED; the control module 110 is equipped with a programming line 140 and a dimming lead 150. When the dimming lead 150 is connected to the second power supply, the second power supply supplies power to the control module 110 through the dimming lead 150. The control module 110 receives and stores the lamp control program through the programming line 140. When the programming line 140 and the dimming lead 150 are shorted, the control module 110 reads the lamp control program and controls the LED to operate according to the lamp control program.

[0033] In this embodiment, input port 120 is connected to a first power supply, and output port 130 is connected to the LED. The first power supply powers the LED and the LED lighting control circuit 100. After the LED lighting control circuit 100 leaves the factory, it can still be connected to a host computer via programming cable 140. The host computer sends the lighting control program to the control module 110 via programming cable 140. The control module 110 receives the lighting control program via programming cable 140 and stores it in its local memory. Dimming lead 150 is connected to a second power supply, which powers the control module 110 via dimming lead 150. At this time, input port 120 does not need to be connected to the first power supply and does not need to power the control module 110. When programming cable 140 and dimming lead 150 are shorted, the control module 110 detects the shorting signal and automatically reads the lighting control program stored in its local memory and controls the LED to operate according to the lighting control program. The LED lighting control circuit 100 described above enables the modification of the lighting control program even after the LED lighting control circuit 100 has left the factory.

[0034] The programming line 140 is marked as PRO, and the dimming lead is marked as 0-10V.

[0035] Reference Figure 5 The programming line 140 and the dimming lead 150 are integrated into the integrated socket.

[0036] Specifically, the lamp control program aims to achieve different equal power outputs at different times, thereby realizing energy-saving management. Of course, in other embodiments, the lamp control program can also be other programs that control the operating modes of LED light intensity, switching time, flashing frequency, etc.

[0037] The LED is powered by AC mains electricity, and the LED lighting control circuit 100 is connected to AC mains electricity. The input port 120 includes a live wire port and a neutral wire port. The live wire port is connected to the live wire, and the neutral wire port is connected to the neutral wire.

[0038] The output port 130 includes a positive port LED+ and a negative port LED-. The positive port is connected to the positive terminal of the LED, and the negative port is connected to the negative terminal of the LED.

[0039] The LED lighting control circuit 100 converts AC power to DC power to supply power to the lighting fixtures.

[0040] Reference Figure 3 The LED lighting control circuit 100 includes a first voltage regulator circuit, which includes a first diode D1, a first transistor Q1, a second resistor R2, a first Zener diode DZ1, a first voltage regulator chip V0, a ​​first capacitor C1, a second capacitor C2, and a fourth capacitor C4. The anode of the first diode D1 is connected to the dimming lead 150, and the cathode of the first diode D1 is connected to one end of the second resistor R2 and the collector of the first transistor Q1. The other end of the second resistor R2 is connected to the base of the first transistor and the cathode of the first Zener diode. The emitter of the first transistor Q1 is connected to one end of the first capacitor C1 and the input terminal of the first voltage regulator chip V0. One end of the second capacitor C2 and one end of the fourth capacitor C4 are connected to the output terminal of the first voltage regulator chip V0. The other ends of the first capacitor C1, the second capacitor C2, the fourth capacitor C4, the anode of the first Zener diode DZ1, and the ground terminal of the first voltage regulator chip V0 are grounded.

[0041] In this embodiment, the input voltage is input from the dimming lead 150, passes through the first diode D1, then through the first transistor Q1, and finally outputs a stable voltage through the first voltage regulator chip V0. The output voltage is output from the +5V terminal. The first diode D1 serves to prevent reverse connection. The first transistor Q1, the second resistor R2, and the first Zener diode DZ1 constitute a linear voltage regulator. The first capacitor C1, the second capacitor C2, and the fourth capacitor C4 are filter capacitors that filter the output voltage.

[0042] Reference Figure 4The LED lighting control circuit 100 includes a second voltage regulator circuit, which includes a sixth resistor R6, a twelfth resistor R12, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a second voltage regulator chip V1, a fifth transistor Q5, a second voltage regulator diode DZ2, and a thirteenth resistor R13. One end of the twelfth resistor R12 is connected to one end of the sixth resistor R6. The other end of the sixth resistor R6, one end of the fifth capacitor C5, and one end of the sixth capacitor C6 are connected to the output terminal of the second voltage regulator chip V1. One end of the thirteenth resistor R13 is connected to the collector of the fifth transistor Q5. The emitter of the fifth transistor Q5 and one end of the seventh capacitor C7 are connected to the input terminal of the second voltage regulator chip V1. The other end of the thirteenth resistor R13 and the negative terminal of the second voltage regulator diode DZ2 are connected to the base of the fifth diode. The positive terminal of the second voltage regulator diode DZ2, the other end of the fifth capacitor C5, the other end of the sixth capacitor C6, the other end of the seventh capacitor C7, and the ground terminal of the second voltage regulator chip V1 are grounded.

[0043] In this embodiment, the input voltage is input from the VCC0 terminal, passes through the fifth transistor, and is output as a stable voltage by the second voltage regulator chip V1. The output voltage is output from the DAC terminal. The input voltage forms a linear voltage regulator through the fifth transistor Q5, the thirteenth resistor R13, and the second Zener diode DZ2. The fifth capacitor C5, the sixth capacitor C6, and the seventh capacitor C7 are filter capacitors that filter the output voltage.

[0044] Reference Figure 2 The control module 110 is equipped with a control chip. The model of the control chip is AC1003.

[0045] Reference Figure 6 The control chip is connected to the programming socket. The light control program is programmed into the control chip through the programming socket.

[0046] Reference Figure 2 The control chip is connected to a thermistor. The thermistor is a negative temperature coefficient (NTC) thermistor. Temperature feedback is transmitted to the control chip via the thermistor. For example, if the LED overheats, the LED power is reduced to protect both the power supply and the LED.

[0047] Reference Figure 2 The control chip is connected to the optocoupler circuit. The optocoupler circuit includes a resistor R11 and an optocoupler OPT3. The control signal output by the control chip is isolated and transmitted to the subsequent circuit of the driver through the optocoupler OPT3, realizing "electrical isolation", improving anti-interference capability, and protecting the control module 110.

[0048] Reference Figure 1In another embodiment of this application, an LED is provided, which is provided with the LED lighting control circuit 100 as described above, and the LED is connected to the output port 130 of the LED lighting control circuit 100.

[0049] The LED is connected to the positive terminal LED+ and the negative terminal LED-.

[0050] The above is a detailed description of the preferred embodiments of this application, but this application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An LED lighting control circuit, characterized in that, include: An input port, the input port being used to connect to a first power source; An output port, which is used to connect to an LED; The control module is equipped with a programming line and a dimming lead; Specifically, when the dimming lead is connected to the second power supply, the second power supply supplies power to the control module through the dimming lead, and the control module receives and stores the lamp control program through the programming line; when the programming line and the dimming lead are short-circuited, the control module reads the lamp control program and controls the LED to operate according to the lamp control program.

2. The LED lighting control circuit according to claim 1, characterized in that, The input port includes a live wire port and a neutral wire port. The live wire port is used to connect to the live wire, and the neutral wire port is used to connect to the neutral wire.

3. The LED lighting control circuit according to claim 1, characterized in that, The output port includes a positive port and a negative port. The positive port is used to connect to the positive terminal of the LED, and the negative port is used to connect to the negative terminal of the LED.

4. The LED lighting control circuit according to claim 1, characterized in that, The control module is equipped with a control chip.

5. The LED lighting control circuit according to claim 4, characterized in that, The control chip is connected to the programming socket.

6. The LED lighting control circuit according to claim 4, characterized in that, The control chip is connected to the thermistor.

7. The LED lighting control circuit according to claim 4, characterized in that, The control chip is connected to the optocoupler circuit.

8. The LED lighting control circuit according to claim 1, characterized in that, The LED lighting control circuit includes a first voltage regulator circuit, which comprises a first diode, a first transistor, a second resistor, a first Zener diode, a first voltage regulator chip, a first capacitor, a second capacitor, and a fourth capacitor. The anode of the first diode is connected to the dimming lead, and the cathode of the first diode is connected to one end of the second resistor and the collector of the first transistor. The other end of the second resistor is connected to the base of the first transistor and the cathode of the first Zener diode. The emitter of the first transistor is connected to one end of the first capacitor and the input terminal of the first voltage regulator chip. One end of the second capacitor and one end of the fourth capacitor are connected to the output terminal of the first voltage regulator chip. The other ends of the first capacitor, the second capacitor, the fourth capacitor, the anode of the first Zener diode, and the ground terminal of the first voltage regulator chip are grounded.

9. The LED lighting control circuit according to claim 1, characterized in that, The LED lighting control circuit includes a second voltage regulator circuit, which includes a sixth resistor, a twelfth resistor, a fifth capacitor, a sixth capacitor, a seventh capacitor, a second voltage regulator chip, a fifth transistor, a second Zener diode, and a thirteenth resistor. One end of the twelfth resistor is connected to one end of the sixth resistor, and the other end of the sixth resistor, one end of the fifth capacitor, and one end of the sixth capacitor are connected to the output terminal of the second voltage regulator chip. One end of the thirteenth resistor is connected to the collector of the fifth transistor, and the emitter of the fifth transistor and one end of the seventh capacitor are connected to the input terminal of the second voltage regulator chip. The other end of the thirteenth resistor and the cathode of the second Zener diode are connected to the base of the fifth diode. The anode of the second Zener diode, the other end of the fifth capacitor, the other end of the sixth capacitor, the other end of the seventh capacitor, and the ground terminal of the second voltage regulator chip are grounded.

10. An LED, characterized in that, The LED lighting control circuit as described in any one of claims 1 to 9 is provided, wherein the LED is connected to the output port of the LED lighting control circuit.

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