Light emitting diode control circuit

Abstract

The utility model provides a light-emitting diode control circuit, which belongs to the technical field of LED control and comprises a direct-current power supply module, a driving light-emitting module, a power supply line, a ground wire and a transceiving control module. A direct-current power supply signal provided by the direct-current power supply module flows through the driving light-emitting module through the power supply line and the ground wire. The receiving and transmitting control module controls on-off of a driving light-emitting link formed by the direct-current power supply module, the power supply line, the driving light-emitting module and the ground wire, and a direct-current power supply signal can be converted into a power supply pulse signal. When the power supply pulse signal is applied to the driving light-emitting module, a light-emitting diode in the driving light-emitting module is controlled, and a control instruction does not need to be transmitted through a signal line. Therefore, according to the circuit provided by the invention, the control instruction of the light emitting diode can be transmitted through the power supply line and the ground wire, signal lines are reduced, wiring is simpler and more reliable, the cost is reduced, and the problem that wiring of a traditional LED control circuit is complicated is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of LED control, and particularly relates to a light emitting diode control circuit. BACKGROUND

[0002] Light emitting diodes (LEDs) are widely used in the lighting field and the display field due to the advantages of low energy consumption, long service life, fast response, and small size. In the application, various states of the LEDs, such as gradual change and white explosion, are controlled through an LED control circuit.

[0003] However, the traditional LED control circuit needs to transmit instructions to an LED driving chip through a signal line, which leads to complex wiring and increased cost. CONTENT OF THE INVENTION

[0004] The application aims to provide an LED control circuit to solve the problem of complex wiring in the traditional LED control circuit.

[0005] The application provides an LED control circuit, which comprises:

[0006] A direct current power supply module for providing a direct current power supply signal;

[0007] A driving light emitting module connected with the direct current power supply module through a power supply line and a ground line, for obtaining the direct current power supply signal, wherein the driving light emitting module, the power supply line, the ground line, and the direct current power supply module form a driving light emitting link;

[0008] A transceiving control module connected with the driving light emitting link, for controlling the on-off of the driving light emitting link according to a trigger signal, so as to convert the direct current power supply signal into a power supply pulse signal and control the working state of the driving light emitting module.

[0009] In some embodiments, the driving light emitting module comprises:

[0010] A plurality of driving column modules connected in parallel between the power supply line and the ground line;

[0011] Each driving column module comprises a plurality of driving row modules connected in series between the power supply line and the ground line;

[0012] Each driving row module comprises a plurality of light emitting control modules connected in parallel.

[0013] In some embodiments, the LED control circuit further comprises:

[0014] A switch module, a first end of the switch module is connected with the driving row module, and a second end of the switch module is connected with a negative electrode end of the direct current power supply module through the ground wire;

[0015] The control end of the switch module is also connected with the transceiving control module, and is used for controlling the driving row module and the ground wire to be connected or disconnected according to a switch control signal, forming the power supply pulse signal, so as to control the light-emitting diode of the light-emitting control module; wherein the transceiving control module is used for sending the switch control signal according to the trigger signal.

[0016] In some embodiments, the light-emitting diode control circuit further comprises:

[0017] A switch module, a first end of the switch module is connected with the driving row module, and a second end of the switch module is connected with a negative electrode end of the direct current power supply module through the ground wire;

[0018] The control end of the switch module is also connected with the transceiving control module, and is used for controlling the driving row module and the ground wire to be connected or disconnected according to a switch control signal, forming the power supply pulse signal, so as to control the light-emitting diode of the light-emitting control module; wherein the transceiving control module is used for sending the switch control signal according to the trigger signal.

[0019] In some embodiments, the light-emitting diode control circuit further comprises:

[0020] A voltage reduction circuit, one end of the voltage reduction circuit is connected with the power supply wire, and the other end of the voltage reduction circuit is connected with a power supply end of the transceiving control module, and is used for providing an adaptive working voltage for the transceiving control module;

[0021] The ground end of the transceiving control module is connected with the ground wire, the signal receiving end of the transceiving control module is used for acquiring the trigger signal, and the signal sending end of the transceiving control module is connected with the control end of the switch module, and is used for sending the switch control signal.

[0022] In some embodiments, the light-emitting diode control circuit further comprises:

[0023] The power supply end of the transceiving control module is connected with the power supply wire, the signal receiving end of the transceiving control module is used for acquiring the trigger signal, and the signal sending end of the transceiving control module is connected with the control end of the switch module, and is used for sending the switch control signal.

[0024] A voltage reduction circuit, one end of the voltage reduction circuit is connected with the ground end of the transceiving control module, and the other end of the voltage reduction circuit is connected with the ground wire, and is used for providing an adaptive working voltage for the transceiving control module.

[0025] In some embodiments, each of the light-emitting control modules comprises:

[0026] a driving chip, a power supply end of the driving chip being connected with a high potential of the driving light-emitting link, and a ground end of the driving chip being connected with a low potential of the driving light-emitting link;

[0027] a plurality of light-emitting diodes, an anode end of each of the light-emitting diodes being connected with the power supply end of the driving chip;

[0028] a plurality of first switch tubes, a first end of each of the first switch tubes being connected with an output end of the driving chip, a second end of each of the first switch tubes being connected with a cathode end of the light-emitting diode, and a third end of each of the first switch tubes being connected with the ground end of the driving chip;

[0029] the driving chip is configured to control on-off of the plurality of first switch tubes according to the power supply pulse signal, so as to control the plurality of light-emitting diodes; wherein the power supply pulse signal comprises a driving chip identification number, light-emitting diode state data, and an end flag.

[0030] In some embodiments, each of the light-emitting control modules further comprises:

[0031] a plurality of first resistors, the first resistors being connected between the first end and the third end of the first switch tube;

[0032] Alternatively, the first resistors are connected between the first end and the second end of the first switch tube.

[0033] In some embodiments, each of the light-emitting control modules comprises:

[0034] a driving chip, a power supply end of the driving chip being connected with a high potential of the driving light-emitting link, and a ground end of the driving chip being connected with a low potential of the driving light-emitting link;

[0035] a plurality of second switch tubes, a first end of each of the second switch tubes being connected with an output end of the driving chip, and a second end of each of the second switch tubes being connected with the power supply end of the driving chip;

[0036] a plurality of light-emitting diodes, an anode end of each of the light-emitting diodes being connected with a third end of each of the second switch tubes, and a cathode end of each of the light-emitting diodes being connected with the ground end of the driving chip;

[0037] the driving chip is configured to control on-off of the plurality of second switch tubes according to the power supply pulse signal, so as to control the plurality of light-emitting diodes; wherein the power supply pulse signal comprises a driving chip identification number, light-emitting diode state data, and an end flag.

[0038] In some embodiments, each of the light emitting control modules further comprises:

[0039] a plurality of second resistors connected between the first end of the second switch tube and the cathode end of the light emitting diode;

[0040] Alternatively, the second resistor is connected between the first end and the second end of the second switch tube.

[0041] The embodiment of the utility model compared with prior art has the beneficial effects that:

[0042] The driving light emitting module is connected with the direct current power supply module through the power supply line and the ground wire, which can be understood as that one end of the driving light emitting module is connected with one end of the direct current power supply module through the power supply line, and the other end of the driving light emitting module is connected with the other end of the direct current power supply module through the ground wire. Further, the direct current power supply signal provided by the direct current power supply module flows through the driving light emitting module through the power supply line and the ground wire. The direct current power supply module, the power supply line, the driving light emitting module and the ground wire form a driving light emitting link, and whether the light emitting diode of the driving light emitting module operates can be determined.

[0043] The transceiving control module is connected with the driving light emitting link, and can control the on-off of the driving light emitting link according to the trigger signal, that is, control the conduction or turn-off of the driving light emitting link. When the transceiving control module controls the conduction of the driving light emitting link according to the trigger signal, the direct current power supply signal provided by the direct current power supply module reaches the ground wire through the driving light emitting module through the power supply line, and further forms a high level signal on the driving light emitting module. When the transceiving control module controls the turn-off of the driving light emitting link according to the trigger signal, the direct current power supply signal provided by the direct current power supply module will not reach the ground wire through the driving light emitting module through the power supply line, and further forms a low level signal on the driving light emitting module. Therefore, the transceiving control module is connected with the driving light emitting link, and controls the on-off of the driving light emitting link according to the trigger signal, which can convert the direct current power supply signal into a power supply pulse signal to the driving light emitting module, control the working state of the driving light emitting module, and control the light emitting diode in the driving light emitting module.

[0044] The direct current power supply signal provided by the direct current power supply module can flow through the driving light emitting module through the power supply line and the ground line. The direct current power supply signal can be converted into the power supply pulse signal with high and low level signals alternating by controlling the on-off of the driving light emitting link formed by the direct current power supply module, the power supply line, the driving light emitting module and the ground line. When the power supply pulse signal is applied to the driving light emitting module, the light emitting diode in the driving light emitting module can be controlled without relying on the signal line to transmit the control instruction. Therefore, the light emitting diode control circuit provided by the application can transmit the control instruction of the light emitting diode through the power supply line and the ground line, reduce the signal line, make the wiring simpler and more reliable, reduce the cost, and solve the problem of complex wiring of the traditional LED control circuit. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0046] Figure 1 The overall structure schematic diagram of the light emitting diode control circuit provided by the application.

[0047] Figure 2 The schematic diagram of the power supply pulse signal provided by the application.

[0048] Figure 3 The connection structure schematic diagram of the driving column module in the driving light emitting module provided by the application.

[0049] Figure 4 The specific connection structure schematic diagram of the switch module, the driving row module and the ground line in some embodiments of the application.

[0050] Figure 5 The specific connection structure schematic diagram of the switch module, the driving row module and the ground line in some embodiments of the application.

[0051] Figure 6 The specific connection structure schematic diagram of the switch module, the driving row module and the power supply line in some embodiments of the application.

[0052] Figure 7 The specific connection structure schematic diagram of the switch module, the driving row module and the power supply line in some embodiments of the application.

[0053] Figure 8Fig. 1 shows a schematic diagram of a connection structure of a driving chip, a light emitting diode, a first switch tube and a first resistor in some embodiments provided in the present application.

[0054] Figure 9 Fig. 2 shows a schematic diagram of a connection structure of a driving chip, a light emitting diode, a first switch tube and a first resistor in some other embodiments provided in the present application.

[0055] Figure 10 Fig. 3 shows a schematic diagram of a connection structure of a driving chip, a second switch tube, a light emitting diode and a second resistor in some embodiments provided in the present application.

[0056] Figure 11 Fig. 4 shows a schematic diagram of a connection structure of a driving chip, a second switch tube, a light emitting diode and a second resistor in some other embodiments provided in the present application. DETAILED DESCRIPTION

[0057] In order to make the technical problems solved by the present application, the technical solutions and the beneficial effects clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0058] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0059] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and thus cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0060] In addition, the terms "first", "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In addition, in the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by "first", "second" and the like. Those skilled in the art can understand that "first", "second" and the like do not limit the number and execution order, and "first", "second" and the like do not necessarily mean different.

[0061] In the description of the present application, unless otherwise specified, " / " represents that the objects before and after the correlation are in a "or" relationship, for example, A / B can represent A or B; "and / or" in the present application is only a description of the correlation of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. And, in the description of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one (one)" or the like refers to any combination of these items, including any combination of single (one) or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple.

[0062] Please refer to Figure 1 The present application provides a light emitting diode control circuit 100. The light emitting diode control circuit 100 includes a direct current power supply module 10, a driving light emitting module 20, a power supply line 310, a ground line 320, and a transceiver control module 40. The direct current power supply module 10 is used to provide a direct current power supply signal.

[0063] The driving light emitting module 20 is connected with the direct current power supply module 10 through the power supply line 310 and the ground line 320, and is used to obtain the direct current power supply signal. The driving light emitting module 20, the power supply line 310, the ground line 320, and the direct current power supply module 10 form a driving light emitting link. The transceiver control module 40 is connected with the driving light emitting link, and is used to control the on-off of the driving light emitting link according to a trigger signal, so as to convert the direct current power supply signal into a power supply pulse signal and control the working state of the driving light emitting module 20.

[0064] In the embodiment, the driving light emitting module 20 is connected with the direct current power supply module 10 through the power supply line 310 and the ground line 320, which can be understood as that one end of the driving light emitting module 20 is connected with one end of the direct current power supply module 10 through the power supply line 310, and the other end of the driving light emitting module 20 is connected with the other end of the direct current power supply module 10 through the ground line 320. Further, the direct current power supply signal provided by the direct current power supply module 10 flows through the driving light emitting module 20 through the power supply line 310 and the ground line 320. The direct current power supply module 10, the power supply line 310, the driving light emitting module 20, and the ground line 320 form a driving light emitting link, which can drive the light emitting diode in the driving light emitting module 20 to operate or not.

[0065] The transceiving control module 40 is connected with the driving light-emitting link, and can control the on-off of the driving light-emitting link according to the trigger signal, that is, control the conduction or turn-off of the driving light-emitting link. When the transceiving control module 40 controls the conduction of the driving light-emitting link according to the trigger signal, the direct current power supply signal provided by the direct current power supply module 10 flows through the driving light-emitting module 20 through the power supply line 310 and reaches the ground line 320, and then a high-level signal is formed on the driving light-emitting module 20. When the transceiving control module 40 controls the turn-off of the driving light-emitting link according to the trigger signal, the direct current power supply signal provided by the direct current power supply module 10 will not flow through the driving light-emitting module 20 through the power supply line 310 and reach the ground line 320, and then a low-level signal is formed on the driving light-emitting module 20. Thus, the transceiving control module 40 is connected with the driving light-emitting link, and the on-off of the driving light-emitting link is controlled according to the trigger signal, so that the direct current power supply signal can be converted into a power supply pulse signal to the driving light-emitting module 20, and the working state of the driving light-emitting module 20 is controlled to control the light-emitting diode in the driving light-emitting module 20.

[0066] The direct current power supply signal provided by the direct current power supply module 10 can flow through the driving light-emitting module 20 through the power supply line 310 and the ground line 320. The on-off of the driving light-emitting link formed by the transceiving control module 40, the direct current power supply module 10, the power supply line 310, the driving light-emitting module 20 and the ground line 320 can convert the direct current power supply signal into a power supply pulse signal with high and low level signals alternately. When the power supply pulse signal is applied to the driving light-emitting module 20, the light-emitting diode in the driving light-emitting module 20 can be controlled without relying on the signal line to transmit the control instruction. Thus, the light-emitting diode control circuit 100 provided by the present application can transmit the control instruction of the light-emitting diode through the power supply line 310 and the ground line 320, reduce the signal line, make the wiring simpler and more reliable, reduce the cost, and solve the problem of complex wiring of the traditional LED control circuit.

[0067] In some embodiments, the trigger signal can be a Bluetooth signal, an infrared signal or a key signal, etc. The Bluetooth signal can be realized by wireless Bluetooth communication, can be connected with a smart device such as a mobile phone, and can realize complex control such as intelligent home application scenarios of adjusting brightness, switching color, setting timing mode, etc. The infrared signal can be realized by infrared light transmission, can be connected with a device such as a remote controller, and can realize complex control such as on-off, brightness adjustment, etc. The key signal can be realized by pressing the physical key to trigger the electrical signal, and direct control can be realized, such as on-off, mode switching, etc.

[0068] Please refer to Figure 2 In some embodiments, the power supply pulse signal includes a driving chip identification number (which can also be understood as an ID number of the driving chip), light-emitting diode state data and an end flag. The driving chip identification number can be Figures 4 to 7The ID of the driving chip shown in the figure is: 0_0_0, 0_0_1, …, 0_0_N; 0_1_0, 0_1_1, …, 0_1_N; 0_N_0, 0_N_1, …, 0_N_N, etc. The light-emitting diode state data can be understood as a binary signal formed by high and low levels, and can realize the adjustment of the on-off, brightness, color, and flicker mode of the light-emitting diode.

[0069] Referring to Figure 3 In some embodiments, the driving light-emitting module 20 includes a plurality of driving column modules 21. The plurality of driving column modules 21 are connected in parallel between the power supply line 310 and the ground line 320.

[0070] Referring to Figure 4 , Figure 5 , Figure 6 and Figure 7 Each driving column module 21 includes a plurality of driving row modules 210. The plurality of driving row modules 210 are connected in series between the power supply line 310 and the ground line 320. Each driving row module 210 includes a plurality of light-emitting control modules 211 connected in parallel.

[0071] In this embodiment, the circuit structures of the plurality of driving column modules 21 are the same. Each driving column module 21 includes a plurality of driving row modules 210. The plurality of driving row modules 210 are connected in series in turn. The circuit structures of the plurality of driving row modules 210 are the same. Each driving row module 210 includes a plurality of light-emitting control modules 211 connected in parallel. The circuit structures of the plurality of light-emitting control modules 211 are the same. Further, by arranging the plurality of driving column modules 21 connected in parallel, the plurality of driving row modules 210 connected in series, and the plurality of light-emitting control modules 211 connected in parallel between the power supply line 310 and the ground line 320, the array arrangement structure of the LED lamp of the driving light-emitting module 20 is formed, which can improve the uniformity of illumination, reduce the load of a single LED, and prolong the service life. At the same time, through the array arrangement structure of the LED lamp of the driving light-emitting module 20, the illumination range and shape can be flexibly adjusted, and partition control and dynamic effects can be realized.

[0072] Referring to Figure 4 and Figure 5 In some embodiments, the light-emitting diode control circuit 100 further includes a switching module 50. The first end of the switching module 50 is connected with the driving row module 210. The second end of the switching module 50 is connected with the negative electrode end of the direct-current power supply module 10 through the ground line 320.

[0073] The control end of the switch module 50 is also connected with the transceiver control module 40, for controlling the on-off of the driving row module 210 and the ground wire 320 according to the switch control signal, forming a power pulse signal to control the light-emitting diode of the light-emitting control module 211. The transceiver control module 40 is used for sending the switch control signal according to the trigger signal.

[0074] In the embodiment, Figure 4 With Figure 5 The specific circuit connection structure of the driving column module 21 is shown in the figure. Each driving column module 21 includes a plurality of driving row modules 210 connected in series, realizing the series connection structure between rows. Each driving row module 210 includes a plurality of light-emitting control modules 211 connected in parallel. The switch module 50 is connected close to the ground wire 320. The switch module 50 is connected between the ground wire 320 and the last row of driving row modules 210, and can control the on-off between the ground wire 320 and the last row of driving row modules 210 according to the switch control signal sent by the transceiver control module 40. Further, since the plurality of driving row modules 210 are connected in series, the on-off between the ground wire 320 and the plurality of driving row modules 210 can be controlled by the switch module 50. Therefore, since the plurality of driving row modules 210 are connected in series to form a driving column module 21, and the plurality of driving column modules 21 are connected in parallel, the on-off between the ground wire 320 and the plurality of driving column modules 21 can be controlled by the switch module 50. Therefore, the on-off between the ground wire 320 and the array arrangement structure of the LED lamp of the driving light-emitting module 20 can be controlled by the switch module 50, forming a power pulse signal. When the power pulse signal is applied to the array arrangement structure of the LED lamp, the light-emitting diode can be controlled without relying on the signal line to transmit the control instruction, reducing the signal line, making the wiring more simple and reliable, and reducing the cost.

[0075] In some embodiments, the switch module 50 can include a relay or a transistor switch, etc., which is not limited in the present application and can be set according to the actual application scenario.

[0076] Please refer to Figure 4 With Figure 5 In some embodiments, the light-emitting diode control circuit 100 further includes a voltage reduction circuit 60. One end of the voltage reduction circuit 60 is connected with the power supply wire 310. The other end of the voltage reduction circuit 60 is connected with the power supply end of the transceiver control module 40, for providing an appropriate working voltage for the transceiver control module 40.

[0077] The ground end of the transceiver control module 40 is connected with the ground wire 320. The signal receiving end of the transceiver control module 40 is used to obtain the trigger signal. The signal sending end of the transceiver control module 40 is connected with the control end of the switch module 50, for sending the switch control signal.

[0078] In this embodiment, the voltage reduction circuit 60 is connected in series between the power supply line 310 and the ground line 320 with the transceiving control module 40. The voltage reduction circuit 60 can reduce the DC power signal provided by the power supply line 310 to form a working voltage required by the transceiving control module 40, so as to ensure the stable and safe operation of the transceiving control module 40.

[0079] The signal receiving end of the transceiving control module 40 can obtain a trigger signal, such as a Bluetooth signal or an infrared signal or a key signal. The trigger signal is a signal formed by triggering of a user terminal. The trigger signal received by the signal receiving end of the transceiving control module 40 can control the arrayed light emitting diodes in real time according to the user's demand (such as adjusting brightness, switching color, setting timing, etc.). The signal transmitting end of the transceiving control module 40 transmits a switching control signal to control the conduction or disconnection of the switch module 50, so as to convert the DC power signal into a power supply pulse signal with high and low level signals alternately, thereby realizing the transmission of the user demand related signal.

[0080] In some embodiments, the voltage reduction circuit 60 can include a linear voltage regulator or a switching type voltage reduction converter, etc., which is not specifically limited in the present application and can be set according to the actual application scenario.

[0081] Please refer to Figure 6 and Figure 7 In some embodiments, the light emitting diode control circuit 100 further includes a switch module 50. The first end of the switch module 50 is connected with the positive end of the DC power supply module 10 through the power supply line 310. The second end of the switch module 50 is connected with the driving row module 210.

[0082] The control end of the switch module 50 is further connected with the transceiving control module 40, for controlling the conduction or disconnection of the driving row module 210 and the power supply line 310 according to the switching control signal, to form a power supply pulse signal for controlling the light emitting diode of the light emitting control module 211. The transceiving control module 40 is used for transmitting the switching control signal according to the trigger signal.

[0083] In this embodiment, Figure 6 and Figure 7The specific circuit connection structure for driving the column module 21. Each driving column module 21 includes a plurality of driving row modules 210 connected in series, achieving a series connection structure between rows. Each driving row module 210 includes a plurality of light-emitting control modules 211 connected in parallel. The switch module 50 is connected close to the power supply line 310. The switch module 50 is connected between the power supply line 310 and the first row of driving row modules 210, and can control the on-off between the power supply line 310 and the first row of driving row modules 210 according to the switch control signal sent by the transceiver control module 40. Further, since the plurality of driving row modules 210 are connected in series, the on-off between the power supply line 310 and the plurality of driving row modules 210 can be controlled by the switch module 50. Therefore, since the plurality of driving row modules 210 are connected in series to form a driving column module 21, and the plurality of driving column modules 21 are connected in parallel, the on-off between the power supply line 310 and the plurality of driving column modules 21 can be controlled by the switch module 50. Therefore, the on-off between the power supply line 310 and the array arrangement structure of the LED lamps of the driving light-emitting module 20 can be controlled by the switch module 50, forming a power supply pulse signal. When the power supply pulse signal is applied to the array arrangement structure of the LED lamps, the light-emitting diode can be controlled without relying on the signal line to transmit the control instruction, reducing the signal line, making the wiring more simple and reliable, and reducing the cost.

[0084] In some embodiments, the light-emitting diode control circuit 100 further includes a voltage reduction circuit 60. The power supply end of the transceiver control module 40 is connected to the power supply line 310. The signal receiving end of the transceiver control module 40 is used to obtain the trigger signal. The signal sending end of the transceiver control module 40 is connected to the control end of the switch module 50, and is used to send the switch control signal.

[0085] One end of the voltage reduction circuit 60 is connected to the ground end of the transceiver control module 40. The other end of the voltage reduction circuit 60 is connected to the ground line 320, for providing an appropriate working voltage for the transceiver control module 40.

[0086] In this embodiment, the voltage reduction circuit 60 and the transceiver control module 40 are connected in series between the power supply line 310 and the ground line 320. The voltage reduction circuit 60 can reduce the DC power supply signal provided by the power supply line 310, forming an appropriate working voltage required by the transceiver control module 40, to ensure the stable and safe operation of the transceiver control module 40.

[0087] Please refer to Figure 8 and Figure 9In some embodiments, each light emitting control module 211 includes a driving chip 2111, a plurality of light emitting diodes 2112, and a plurality of first switch tubes 2113. The power supply end of the driving chip 2111 is connected to the high potential of the driving light emitting link. The ground end of the driving chip 2111 is connected to the low potential of the driving light emitting link. The anode end of each light emitting diode 2112 is connected to the power supply end of the driving chip 2111.

[0088] The first end of each first switch tube 2113 is connected to the output end of the driving chip 2111. The second end of each first switch tube 2113 is connected to the cathode end of the light emitting diode 2112. The third end of each first switch tube 2113 is connected to the ground end of the driving chip 2111. The driving chip 2111 is used to control the on-off of the plurality of first switch tubes 2113 according to the power supply pulse signal, so as to control the plurality of light emitting diodes 2112.

[0089] In the embodiment, the first switch tube 2113 is an N-type effect transistor. The first end of the first switch tube 2113 is the gate end, which is connected to the output end of the driving chip 2111. The second end of the first switch tube 2113 is the drain end, which is connected to the cathode end of the light emitting diode 2112. The third end of the first switch tube 2113 is the source end, which is connected to the ground end of the driving chip 2111. The direct current power supply module 10, the power supply line 310, the driving light emitting module 20, and the ground line 320 form a driving light emitting link. The high potential of the driving light emitting link to the low potential of the driving light emitting link can be understood as the potential formed by the current flow. The high potential of the driving light emitting link is greater than the low potential of the driving light emitting link, which can enable the driving chip 2111, the plurality of first switch tubes 2113, and the plurality of light emitting diodes 2112 to operate normally.

[0090] The first switch tube 2113 is connected in the light emitting link of the light emitting diode 2112. The driving chip 2111 can decode the corresponding driving chip ID number by detecting the received power supply pulse signal, and then determine whether it is the ID number of itself. If yes, the driving chip 2111 can determine the adjusted brightness, switched color, etc. according to the logic level signal of the data segment in the power supply pulse signal, so as to control the on-off time and current size of the plurality of light emitting diodes 2112 through the plurality of first switch tubes 2113.

[0091] The driving chip 2111 controls the conduction or disconnection of the first switch tube 2113 according to the received power supply pulse signal, and then controls the conduction or disconnection of the light emitting link of the light emitting diode 2112, so as to adjust and control the light emitting diode 2112. By controlling the conduction or disconnection of the plurality of first switch tubes 2113 through the driving chip 2111 in the light emitting control module 211, the control of the plurality of light emitting diodes 2112 can be realized, so as to realize the adjustment of brightness, the switching of color, the setting of timing, etc.

[0092] In some embodiments, each light emitting control module 211 further comprises a plurality of first resistors 2114. The first resistors 2114 are connected between the first end and the third end of the first switch tube 2113.

[0093] In the present embodiment, the first resistors 2114 are connected between the first end and the third end of the first switch tube 2113, which can also be understood as being connected between the gate end and the source end of the first switch tube 2113. The plurality of first resistors 2114 serve as pull-down resistors, which can prevent the control signal output by the driving chip 2111 from being suspended, ensure logic stability, and make the plurality of light emitting diodes 2112 in a stable state to avoid abnormality of the light emitting diodes 2112. Figure 8 In some embodiments, the first resistors 2114 are connected between the first end and the second end of the first switch tube 2113.

[0094] In the present embodiment, the first resistors 2114 are connected between the first end and the second end of the first switch tube 2113, which can also be understood as being connected between the gate end and the drain end of the first switch tube 2113. The plurality of first resistors 2114 serve as pull-up resistors, which can also prevent the control signal output by the driving chip 2111 from being suspended, ensure logic stability, and make the plurality of light emitting diodes 2112 in a stable state to avoid abnormality of the light emitting diodes 2112.

[0095] Figure 9 Please refer to and

[0096] In some embodiments, each light emitting control module 211 comprises a driving chip 2111, a plurality of second switch tubes 2115, and a plurality of light emitting diodes 2112. The power supply end of the driving chip 2111 is connected to the high potential of the driving light emitting link. The ground end of the driving chip 2111 is connected to the low potential of the driving light emitting link. Figure 10 Figure 11 The first end of each second switch tube 2115 is connected to the output end of the driving chip 2111. The second end of each second switch tube 2115 is connected to the power supply end of the driving chip 2111. The anode end of each light emitting diode 2112 is connected to the third end of each second switch tube 2115. The cathode end of each light emitting diode 2112 is connected to the ground end of the driving chip 2111.

[0097] The driving chip 2111 is configured to control the on-off of the plurality of second switch tubes 2115 according to the power supply pulse signal, so as to control the plurality of light emitting diodes 2112.

[0098] The driving chip 2111 is configured to control the on-off of the plurality of second switch tubes 2115 according to the power supply pulse signal, so as to control the plurality of light emitting diodes 2112.

[0099] ​In this embodiment, the second switch 2115 is a P-type transistor. The first terminal of the second switch 2115 is the gate terminal, connected to the output terminal of the driver chip 2111. The second terminal of the second switch 2115 is the source terminal, connected to the power supply terminal of the driver chip 2111. The third terminal of the second switch 2115 is the drain terminal, connected to the anode terminal of the light-emitting diode 2112. The DC power supply module 10, power supply line 310, driver light-emitting module 20, and ground line 320 form a driver light-emitting link. The high potential to low potential of the driver light-emitting link can be understood as the potential formed by current flow. The high potential of the driver light-emitting link is greater than the low potential, which allows the driver chip 2111, the multiple second switch 2115s, and the multiple light-emitting diodes 2112 to operate normally.

[0100] The second switching transistor 2115 is connected in the light-emitting link of the light-emitting diode 2112. The driver chip 2111 can decode the corresponding driver chip ID number by detecting the received power supply pulse signal, and thus determine whether it is its own ID number. If so, the driver chip 2111 can determine the adjusted brightness, switched color, etc., based on the logic level signal of the data segment in the power supply pulse signal, so as to control the on / off time and current magnitude of the multiple light-emitting diodes 2112 through the multiple second switching transistors 2115.

[0101] Therefore, the driver chip 2111 controls the second switching transistor 2115 to turn on or off according to the received power supply pulse signal, thereby controlling the light-emitting link of the light-emitting diode 2112 to turn on or off, thus enabling the adjustment and control of the light-emitting diode 2112. By controlling the on or off of multiple second switching transistors 2115 through the driver chip 2111 in the light-emitting control module 211, multiple light-emitting diodes 2112 can be controlled to achieve functions such as adjusting brightness, switching colors, and setting timing.

[0102] In some embodiments, each light-emitting control module 211 further includes a plurality of second resistors 2116. The second resistors 2116 are connected between the first terminal of the second switching transistor 2115 and the cathode terminal of the light-emitting diode 2112.

[0103] In this embodiment, Figure 10 In this configuration, the second resistor 2116 is connected between the gate of the second switching transistor 2115 and the cathode of the light-emitting diode 2112. Multiple second resistors 2116 act as pull-down resistors, preventing the control signal output by the driver chip 2111 from being floating, ensuring logic stability, and keeping the multiple light-emitting diodes 2112 in a stable state, thus preventing malfunctions of the light-emitting diodes 2112.

[0104] In some embodiments, the second resistor 2116 is connected between the first end and the second end of the second switch tube 2115.

[0105] In this embodiment, the second resistor 2116 is connected between the first end and the second end of the second switch tube 2115, which can also be understood as that the second resistor 2116 is connected between the gate end and the source end of the second switch tube 2115. The plurality of second resistors 2116 as pull-up resistors can also prevent the control signal output by the driving chip 2111 from being suspended, ensure the logic stability, make the plurality of light emitting diodes 2112 in a stable state, and avoid the abnormality of the light emitting diodes 2112. Figure 11

[0106] In some embodiments, the types of the first switch tube 2113 and the second switch tube 2115 can also be Bipolar Junction Transistors (BJT), and appropriate transistors can be selected according to the circuit parameters and performance.

[0107] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of software functional unit. In addition, the specific names of the functional units and modules are only for mutual distinction, and do not limit the protection scope of the application. The specific working process of the units and modules in the system can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0108] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the related description of other embodiments.

[0109] In addition, each functional unit in each embodiment of the application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of software functional unit.

[0110] ​The integrated module / unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware.

[0111] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A light emitting diode control circuit, characterized by, The application relates to a light-emitting diode control circuit. The light-emitting diode control circuit comprises: a direct-current power supply module (10) for providing a direct-current power supply signal; a driving light-emitting module (20) connected with the direct-current power supply module (10) through a power supply wire (310) and a ground wire (320) and used for acquiring the direct-current power supply signal, wherein the driving light-emitting module (20), the power supply wire (310), the ground wire (320) and the direct-current power supply module (10) form a driving light-emitting link; 2. The light emitting diode control circuit of claim 1, wherein, a transceiving control module (40) connected with the driving light-emitting link and used for controlling the on-off of the driving light-emitting link according to a trigger signal so as to convert the direct-current power supply signal into a power supply pulse signal and control the working state of the driving light-emitting module (20). The driving light-emitting module (20) comprises: a plurality of driving column modules (21) connected in parallel between the power supply wire (310) and the ground wire (320); each driving column module (21) comprises a plurality of driving row modules (210) connected in series between the power supply wire (310) and the ground wire (320); 3. The light emitting diode control circuit of claim 2, wherein, each driving row module (210) comprises a plurality of light-emitting control modules (211) connected in parallel. The light-emitting diode control circuit further comprises: a switch module (50) with a first end connected with the driving row module (210) and a second end connected with a negative electrode end of the direct-current power supply module (10) through the ground wire (320); 4. The light emitting diode control circuit of claim 2, wherein, a control end of the switch module (50) is further connected with the transceiving control module (40) and used for controlling the on-off of the driving row module (210) and the ground wire (320) according to a switch control signal to form the power supply pulse signal so as to control the light-emitting diode of the light-emitting control module (211); wherein the transceiving control module (40) is used for sending the switch control signal according to the trigger signal. The light-emitting diode control circuit further comprises: a switch module (50) with a first end connected with the driving row module (210) and a second end connected with a negative electrode end of the direct-current power supply module (10) through the ground wire (320); 5. The light emitting diode control circuit of claim 3, wherein, a control end of the switch module (50) is further connected with the transceiving control module (40) and used for controlling the on-off of the driving row module (210) and the ground wire (320) according to a switch control signal to form the power supply pulse signal so as to control the light-emitting diode of the light-emitting control module (211); wherein the transceiving control module (40) is used for sending the switch control signal according to the trigger signal. The light-emitting diode control circuit further comprises: A voltage reduction circuit (60) is connected to the power supply line (310) at one end and to the power supply end of the transceiving control module (40) at the other end, for providing an adapted working voltage to the transceiving control module (40); The ground end of the transceiving control module (40) is connected to the ground line (320), the signal receiving end of the transceiving control module (40) is used to acquire the trigger signal, and the signal sending end of the transceiving control module (40) is connected to the control end of the switch module (50), for sending the switch control signal.

6. The light emitting diode control circuit of claim 4, wherein, The light emitting diode control circuit further comprises: The power supply end of the transceiving control module (40) is connected to the power supply line (310), the signal receiving end of the transceiving control module (40) is used to acquire the trigger signal, and the signal sending end of the transceiving control module (40) is connected to the control end of the switch module (50), for sending the switch control signal; A voltage reduction circuit (60) is connected to the ground end of the transceiving control module (40) at one end and to the ground line (320) at the other end, for providing an adapted working voltage to the transceiving control module (40).

7. The light emitting diode control circuit of claim 2, wherein, Each of the light emitting control modules (211) comprises: A driving chip (2111) having a power supply end connected to the high potential of the driving light emitting link and a ground end connected to the low potential of the driving light emitting link; A plurality of light emitting diodes (2112), each having an anode end connected to the power supply end of the driving chip (2111); A plurality of first switch tubes (2113), each having a first end connected to the output end of the driving chip (2111), a second end connected to the cathode end of the light emitting diode (2112), and a third end connected to the ground end of the driving chip (2111); The driving chip (2111) is used to control the on-off of the plurality of first switch tubes (2113) according to the power supply pulse signal, so as to control the plurality of light emitting diodes (2112); wherein the power supply pulse signal comprises a driving chip identification number, light emitting diode state data, and an end flag.

8. The light emitting diode control circuit of claim 7, wherein, Each of the light emitting control modules (211) further comprises a plurality of first resistors (2114); The first resistor (2114) is connected between the first end and the third end of the first switch tube (2113); Alternatively, the first resistor (2114) is connected between the first end and the second end of the first switch tube (2113).

9. The light emitting diode control circuit of claim 2, wherein, Each of the light emitting control modules (211) comprises: A driving chip (2111), a power supply end of the driving chip (2111) is connected with a high potential of the driving light-emitting link, and a grounding end of the driving chip (2111) is connected with a low potential of the driving light-emitting link; A plurality of second switch tubes (2115), a first end of each of the second switch tubes (2115) is connected with an output end of the driving chip (2111), and a second end of each of the second switch tubes (2115) is connected with the power supply end of the driving chip (2111); A plurality of light-emitting diodes (2112), an anode end of each of the light-emitting diodes (2112) is connected with a third end of each of the second switch tubes (2115), and a cathode end of each of the light-emitting diodes (2112) is connected with the grounding end of the driving chip (2111); The driving chip (2111) is used for controlling on-off of the plurality of second switch tubes (2115) according to the power supply pulse signal, so as to control the plurality of light-emitting diodes (2112); wherein the power supply pulse signal comprises a driving chip identification number, light-emitting diode state data and an end flag.

10. The light emitting diode control circuit of claim 9, wherein, Each of the light-emitting control modules (211) further comprises a plurality of second resistors (2116); The second resistor (2116) is connected between the first end of the second switch tube (2115) and the cathode end of the light-emitting diode (2112); Alternatively, the second resistor (2116) is connected between the first end and the second end of the second switch tube (2115).

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