A control mode of multiple input lines

Abstract

The present application relates to the technical field of lamp power supply, and provides a control mode of multiple input lines, comprising: a multiple input line acquisition unit, a signal output end of the multiple input line acquisition unit is electrically connected with a logic identification unit, output ends of the logic identification unit are respectively connected with a driving adjustment unit and a color temperature switching unit, the driving adjustment unit is connected with an LED constant current output unit, and through different access combinations of multiple input lines, the hierarchical control of brightness and color temperature is realized. The existing lamp dimming mode has obvious shortcomings: the intelligent control is complex and high in cost, the thyristor / 0-10V needs to be changed to a switch, the dial code needs to be disassembled and cannot be adjusted daily, and the waterproofness is damaged. Low cost, easy installation, adjustable light at any time, waterproof safety and anti-misoperation cannot be considered, and it is difficult to meet the long-term flexible use requirements of scenes such as family and baby room.

Description

Technical Field

[0001] This invention relates to the field of lighting power supply technology, specifically a control method with multiple input lines. Background Technology

[0002] With the popularization of LED lighting, users are increasingly demanding adjustable brightness and color temperature of lamps, especially in home, education, and commercial settings where they need to flexibly adapt to different ambient light intensities.

[0003] Existing dimming solutions mainly include intelligent wireless control, silicon controlled rectifier (SCR) dimming, 0-10V dimming, and DIP switch adjustment, which respectively achieve power regulation through wireless communication, phase chopping, analog voltage, or internal switching.

[0004] However, the above methods generally have obvious drawbacks: intelligent control is costly, complex to operate, and dependent on gateways and networks; the thyristor and 0-10V require the replacement of switches and rewiring, making the modification difficult; DIP switch adjustment requires disassembling the lamp, making it impossible to adjust daily, and it will also damage the waterproof structure of the lamp, making it difficult to meet the comprehensive requirements of low cost, easy installation, daily adjustment and waterproof safety. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-input line control method that solves the significant drawbacks of current lighting dimming methods: intelligent control is complex and costly; thyristor / 0-10V requires rewiring and switch replacement; DIP switches require lamp removal for daily adjustment and can compromise waterproofing. These methods fail to simultaneously achieve low cost, easy installation, on-demand dimming, waterproofing, and prevention of accidental operation, making them unsuitable for long-term flexible use in homes, nurseries, and other similar settings.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a control method for multiple input lines, comprising: a multiple input line acquisition unit, wherein the signal output terminal of the multiple input line acquisition unit is electrically connected to a logic recognition unit, the output terminal of the logic recognition unit is respectively connected to a drive adjustment unit and a color temperature switching unit, the drive adjustment unit is connected to an LED constant current output unit, and through different combinations of multiple input lines, graded control of brightness and color temperature is achieved.

[0007] Preferably, the multi-input line acquisition unit includes at least two live wire input lines L1 and L2, and at least two neutral wire input lines N1 and N2; the live wire input lines are used for brightness adjustment, and the neutral wire input lines are used for color temperature adjustment.

[0008] Preferably, the logic identification unit includes switching transistors Q1, Q2, Q3, Q4 and a voltage divider and current limiting resistor network, used to identify three combined states: L1 connected, L2 connected, and L1 and L2 connected simultaneously, and output corresponding level control signals.

[0009] Preferably, the drive adjustment unit achieves graded adjustment of LED output current by changing the external parallel resistance value of the constant current drive CS pin, thereby achieving graded brightness control.

[0010] Preferably, when only L1 is connected, Q1 is on and Q2 is off, and the current of the CS pin is determined by the parallel connection of resistors R4 and R6; when only L2 is connected, Q2 is on and Q1 is off, and the current of the CS pin is determined by the parallel connection of resistors R5 and R6; when both L1 and L2 are connected, both Q1 and Q2 are on, and the current of the CS pin is determined by the parallel connection of resistors R4, R5, and R6.

[0011] Preferably, the color temperature switching unit controls the conduction of Q3 and Q4 respectively through the access states of N1 and N2, thereby switching the on / off state of the warm light LED branch and the cold light LED branch to achieve color temperature switching.

[0012] Preferably, the multi-input line acquisition unit supports a simplified control mode: L1 serves as the main power supply line, and L2 serves only as the control signal terminal, with the brightness switching between two levels achieved by whether or not L2 is connected.

[0013] Preferably, the logic recognition unit can convert the input line combination state into a digital signal and output it to the MCU, so that the MCU can realize programmable multi-mode control of brightness, color temperature and power.

[0014] Preferably, all input lines use current-limiting resistors for low-current control, which does not compromise the overall waterproof rating of the luminaire and eliminates the need for DIP switches.

[0015] Preferably, the control method is compatible with ordinary wall switches, requiring no SCR, 0-10V dimmer, wireless module, or gateway, and the installation method is completely consistent with ordinary lighting fixtures.

[0016] This invention provides a control method for multiple input lines. It has the following advantages: 1. This invention achieves brightness and color temperature control through multi-input line combination identification, without the need for wireless modules, dimmers, or wiring modifications, reducing costs by more than 60% compared to traditional smart solutions, and possessing unexpected economic efficiency and versatility; it uses external wiring to replace DIP switches, without disassembling the lamp or damaging the waterproof structure.

[0017] 2. The independent architecture of the fire wire control brightness and the zero wire control color temperature of the present invention can be extended to various power supply devices. The circuit is simple, has strong anti-interference and high stability. It is fully compatible with ordinary switches and traditional lamp installation methods, and supports both fixed installation and daily switch adjustment modes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating a typical application of Embodiment 1 of the present invention; Figure 2This is a schematic diagram of the wiring method in this invention; Figure 3 This is a schematic diagram illustrating a typical application of Embodiment 2 of the present invention; Figure 4 This is a schematic diagram illustrating a more general application of the present invention; Figure 5 These are schematic diagrams illustrating different wiring methods used in this invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: This invention provides a control method for multiple input lines, including: The multi-input line acquisition unit includes at least two live wire input lines L1 and L2, and at least two neutral wire input lines N1 and N2. The live wire input lines are used for brightness adjustment, and the neutral wire input lines are used for color temperature adjustment. The color temperature switching unit controls the conduction of Q3 and Q4 respectively through the access status of N1 and N2, thereby switching the on and off of the warm light LED branch and the cold light LED branch to achieve color temperature switching. The logic recognition unit includes switching transistors Q1, Q2, Q3, Q4 and a voltage divider and current limiting resistor network. It is used to identify three combination states: L1 connected, L2 connected, and L1 and L2 connected simultaneously, and output the corresponding level control signal. The logic recognition unit can convert the input line combination state into a digital signal and output it to the MCU. The MCU can then implement programmable multi-mode control of brightness, color temperature and power. The drive adjustment unit achieves graded adjustment of the LED output current by changing the value of the external parallel resistor of the constant current drive CS pin, thereby achieving graded brightness control. When only L1 is connected, Q1 is turned on and Q2 is turned off, and the current of the CS pin is determined by the parallel connection of resistors R4 and R6; when only L2 is connected, Q2 is turned on and Q1 is turned off, and the current of the CS pin is determined by the parallel connection of resistors R5 and R6; when both L1 and L2 are connected, both Q1 and Q2 are turned on, and the current of the CS pin is determined by the parallel connection of resistors R4, R5, and R6. The signal output terminal of the multi-input line acquisition unit is electrically connected to the logic recognition unit. The output terminal of the logic recognition unit is connected to the drive adjustment unit and the color temperature switching unit, respectively. The drive adjustment unit is connected to the LED constant current output unit. Through different combinations of multiple input lines, graded control of brightness and color temperature can be achieved. The multi-input line acquisition unit supports a simplified control mode: L1 serves as the main power supply line, and L2 is only used as the control signal terminal. The two brightness levels are switched by whether L2 is connected or not. All input lines use current-limiting resistors for low-current control, which does not compromise the overall waterproof rating of the lamp and eliminates the need for DIP switches. The control method is compatible with ordinary wall switches and requires no SCR, 0-10V dimmer, wireless module, or gateway. The installation method is completely consistent with ordinary lamps.

[0021] As another aspect of this invention, the workflow of the above-mentioned multi-input line control method is as follows: the multi-input line acquisition unit acquires the access status of L1, L2, N1, and N2; The logic identification unit drives the corresponding switch to turn on or off based on the access combination; The drive adjustment unit changes the parallel resistance value of the CS pin to adjust the LED output current; The color temperature switching unit switches between cool and warm light branches based on the neutral line input; The system automatically operates in the corresponding brightness and color temperature mode based on the wiring combination.

[0022] To better illustrate the embodiments of the present invention, the following examples are provided: Example 1 Typical applications such as Figure 5 As shown: Please see the appendix Figure 1 The input circuit modulates the input AC into DC, which is then used by the subsequent working circuits. The constant current drive circuit is a constant current circuit used to drive LEDs. This circuit converts DC into a constant DC current to supply the LED. Its current value is determined by the external resistor connected to the CS pin. Since CS will be maintained at a certain voltage value, the smaller the resistance, the larger the current.

[0023] like Figure 2 Wiring method shown: If only L1 is connected and L2 is not connected, then L1 drives Q1 to conduct through the circuit and Q2 to be cut off. In this case, the circuit of the CS pin is R4 and R6 connected in parallel, and the current output to the LED is determined by the parallel value of these two resistors.

[0024] If only L2 is connected and L1 is not connected, then L2 drives Q2 to conduct through the circuit and Q1 to turn off. In this case, the circuit of the CS pin is R5 and R6 connected in parallel, and the current output to the LED is determined by the parallel value of these two resistors.

[0025] If both L1 and L2 are connected, then Q1 and Q2 are both conducting. The resistors at the CS pin are connected in parallel by R4, R5, and R6, and the current output to the LED is determined by the parallel value of these three resistors. Thus, different L1 and L2 connection methods determine different current values ​​of the output LED, which in turn causes changes in the brightness of the lamp.

[0026] L1 and L2 can be connected through different switches, or they can be selected directly during installation.

[0027] The color temperature circuit is similar to the above application, but the control line is changed to an N line. In this way, by connecting N1, Q3 can be turned on and the C-channel LED can be lit. By connecting N2, Q4 can be turned on and the W-channel LED can be lit. These circuits all use tiny current control.

[0028] Example 2 Please see the appendix Figure 2 A simpler version is that L2 no longer serves as the source of input energy, but only as the control signal terminal.

[0029] When L2 is not connected, the current to the lamp is determined by R6. When L2 is connected, the current to the lamp is determined by the parallel value of R5 and R6. In this way, during installation, the lamp can be installed with L2 either unconnected or with both L1 and L2 connected to the switch. In this case, the lamp can be used like a regular lamp, and two different brightness levels can be selected.

[0030] Alternatively, the switch connected to L2 can be used as a secondary switch and placed in different locations. The state of this switch can control the lamp to work in different ways.

[0031] Please see the appendix Figure 3 A more common application is to extract the L2 signal and feed it to the MCU or control hardware to control the drive circuit to operate under different behaviors. As mentioned above, different L1 and L2 connection methods can achieve different functional settings. This can be used to control the brightness or color temperature of lamps, or the operating status of other devices.

[0032] This circuit can also be used to control devices that are not limited to lights. In devices with fewer functions, it can simplify the control method and is more suitable for everyday use.

[0033] like Figure 4 As shown, different wiring methods can be used to easily control different operating states of lights or devices.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A control method for multiple input lines, characterized in that, include: A multi-input line acquisition unit is provided, wherein the signal output terminal of the multi-input line acquisition unit is electrically connected to the logic recognition unit, the output terminal of the logic recognition unit is connected to the drive adjustment unit and the color temperature switching unit respectively, and the drive adjustment unit is connected to the LED constant current output unit. Through different access combinations of multiple input lines, graded control of brightness and color temperature is achieved.

2. The control method for multiple input lines according to claim 1, characterized in that, The multi-input line acquisition unit includes at least two live wire input lines L1 and L2, and at least two neutral wire input lines N1 and N2; the live wire input lines are used for brightness adjustment, and the neutral wire input lines are used for color temperature adjustment.

3. The control method for multiple input lines according to claim 2, characterized in that, The logic identification unit includes switching transistors Q1, Q2, Q3, and Q4, and a voltage divider and current limiting resistor network. It is used to identify three combined states: L1 connected, L2 connected, and L1 and L2 connected simultaneously, and output the corresponding level control signal.

4. The control method for multiple input lines according to claim 3, characterized in that, The drive adjustment unit achieves graded adjustment of LED output current by changing the external parallel resistor value of the constant current drive CS pin, thereby achieving graded brightness control.

5. The control method for multiple input lines according to claim 4, characterized in that, When only L1 is connected, Q1 is on and Q2 is off, and the current at the CS pin is determined by the parallel connection of resistors R4 and R6; when only L2 is connected, Q2 is on and Q1 is off, and the current at the CS pin is determined by the parallel connection of resistors R5 and R6; when both L1 and L2 are connected, both Q1 and Q2 are on, and the current at the CS pin is determined by the parallel connection of resistors R4, R5, and R6.

6. The control method for multiple input lines according to claim 2, characterized in that, The color temperature switching unit controls the conduction of Q3 and Q4 by the access states of N1 and N2 respectively, thereby switching the on / off state of the warm light LED branch and the cold light LED branch to achieve color temperature switching.

7. The control method for multiple input lines according to claim 1, characterized in that, The multi-input line acquisition unit supports a simplified control mode: L1 serves as the main power supply line, while L2 is only used as a control signal terminal. The brightness switching between two levels is achieved by whether or not L2 is connected.

8. The control method for multiple input lines according to claim 1, characterized in that, The logic recognition unit can convert the input line combination state into a digital signal and output it to the MCU, so that the MCU can realize programmable multi-mode control of brightness, color temperature and power.

9. The control method for multiple input lines according to claim 1, characterized in that, All input lines use current-limiting resistors for low-current control, which does not compromise the overall waterproof rating of the luminaire and eliminates the need for DIP switches.

10. The control method for multiple input lines according to claim 1, characterized in that, The control method is compatible with ordinary wall switches and does not require silicon controlled rectifiers, 0-10V dimmers, wireless modules, or gateways. The installation method is exactly the same as that of ordinary light fixtures.

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