Low-cost LED numerical control lamp control module
By designing a low-cost LED digital lamp control module, using the TM1990 chip and simple circuitry, the problems of high cost and low chip compatibility in existing technologies are solved, achieving flexible LED digital lamp control and display effects, and making it suitable for various LED digital lamp loads.
Patent Information
- Application Number
- CN202520969719.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-05-16
AI Technical Summary
Existing LED digital light controllers are expensive and have low chip compatibility, making it difficult for lighting to interact with equipment.
Design a low-cost LED digital control module that uses the simple TM1990 chip, supports multiple control chips, controls the effect and speed via manual button switch, has a power-off memory function, supports multiple display effects and RGB chip cascading.
It achieves low-cost LED digital light control, supports multiple chip types, simplifies the access process, reduces the application difficulty for end customers, provides flexible display effects and memory function, and is suitable for various LED digital light loads.
Smart Images

Figure CN223968012U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of intelligent control of LED lights, and relates to a low-cost LED digital control light control module. Background Technology
[0002] With the continuous advancement of LED digital control lighting technology, various chip-controlled LED digital control lights have emerged, requiring matching with various controllers for functional testing and application. However, LED controllers are generally expensive, and the integration and interaction between lighting and various devices has become a bottleneck for the development of new technologies.
[0003] To address the above issues, there is an urgent need to develop an intelligent, low-cost control module that supports control of multiple chip types to solve the problem of excessively high control costs for LED digital lights. Utility Model Content
[0004] In view of the above-mentioned shortcomings of high cost and low chip matching of existing technologies, the purpose of this utility model is to provide a low-cost LED digital lamp control module with simple circuit structure, low cost, and support for LED digital lamp loads with various control chips. The module includes the positive and negative terminals of a DC power supply, a voltage limiting resistor R1, a protection resistor R2, a TM1990 U1 chip, a capacitor C1, a manual push-button switch S1, and an LED digital lamp. Pin 1 (DO) of the TM1990 U1 chip is connected to one end of the protection resistor R2, and the other end of the protection resistor R2 is connected to pin DIN of the LED digital lamp. Pin V+ of the digital lamp is connected to the positive terminal V+ of the DC power supply; pin V- of the digital lamp is connected to the negative terminal V- of the DC power supply; pin 4 (GND) of the TM1990 U1 chip is grounded; pin 5 (K) of the TM1990 U1 chip is connected to one end of the manual push-button switch S1, and the other end of the manual push-button switch S1 is grounded; the TM1990 chip… Pin 8 (VDD) of U1 is connected to one end of the voltage limiting resistor R1 and capacitor C1. The other end of the voltage limiting resistor R1 is connected to the positive terminal V+ of the DC power supply, and the other end of capacitor C1 is grounded.
[0005] Furthermore, this utility model provides a low-cost LED digital light control module, which also has the following features: a short press of the manual button switch S1 controls the entry into the effect setting mode, allowing switching between different control effects of the LED digital light, with a total of 50 display effects to choose from.
[0006] Furthermore, this utility model provides a low-cost LED digital light control module, which also has the following features: pressing the manual button switch S1 for 2-3 seconds enters the speed setting mode; short pressing the manual button switch switches the running speed of the current LED digital light effect, and the running speed is adjustable in 11 levels from 0 to 100%.
[0007] Furthermore, this utility model provides a low-cost LED digital light control module, which also has the following features: after short-pressing the manual button switch S1 to control the LED digital light, the displayed effects include fill, flowing, single color and jump, breathing, wave, etc., and multiple colors are available. It also supports the cascading of 600 RGB chips to control the LED digital light.
[0008] Furthermore, this utility model provides a low-cost LED digital light control module, which also has the following features: the control module has a power failure memory function, and the LED digital light effect and running speed are set before the power failure, and the LED digital light effect and running speed set before the power failure are maintained after the power failure is restarted.
[0009] Furthermore, this utility model provides a low-cost LED digital control lamp control module, which also has the following features: the resistance value of the voltage limiting resistor R1 can be determined according to the voltage between the positive and negative terminals of the DC power supply. If the voltage between the terminals is 24V, the resistance value of the voltage limiting resistor R1 is 1.2 kΩ; if the voltage between the terminals is 12V, the resistance value of the voltage limiting resistor R1 is 500 Ω; and if the voltage between the terminals is 5V, the resistance value of the voltage limiting resistor R1 is 0 Ω.
[0010] Furthermore, this utility model provides a low-cost LED digital lamp control module, which also has the following features: all of the chips TM1990 U1 pin 7 (T0), TM1990 U1 pin 6 (T1), TM1990 U1 pin 3 (T2), and TM1990 U1 pin 2 (T3) are connected in parallel to the negative terminal, so the module can simultaneously control RGB three-channel series LED digital lamp loads such as chips TM1804, TM1809, and TM1934.
[0011] Furthermore, this utility model provides a low-cost LED digital control lamp control module, which also has the following features: pin 7 (T0), pin 3 (T2), and pin 2 (T3) of chip TM1990 U1 are all connected in parallel to the negative terminal V- of the DC power supply, and pin 6 (T1) of chip TM1990 U1 is connected to the positive terminal V+ of the DC power supply. Then, the module can simultaneously control RGBW four-channel series LED digital control lamp loads such as chip TM1824, chip TM1812, and chip TM1926.
[0012] Furthermore, this utility model provides a low-cost LED digital control lamp control module, which also has the following features: pin 6 (T1) of chip TM1990 U1 and pin 2 (T3) of chip TM1990 U1 are all connected in parallel to the negative terminal, and pin 7 (T0) and pin 3 (T2) of chip TM1990 U1 are connected to the positive terminal V+ of DC power supply. Then the module can simultaneously control LED digital control lamp loads such as chip TM1814 and chip TM1814B.
[0013] The advantages of this utility model are: simple circuit structure, low cost, and easy-to-use LED digital light control module. It is compatible with various LED digital light driver chips, including commonly used single-line and breakpoint resume LED digital lights. The switching of LED digital light effects and the running speed of the effects can be controlled by a single button, and automatic switching of LED digital light effects cycling is also available. Display effects include fill, flowing, monochrome, jump, breathing, and wave, with multiple colors or lengths available. It also supports cascading of up to 600 RGB chips for LED digital light control. Unlike medium-to-large-scale lighting projects that require large and complex control systems for linkage, this LED digital light control module is flexible and versatile, including common lighting decoration patterns. It eliminates the need for a separate controller and reduces the difficulty of application for end users. Simply connect to an LED digital light to directly control it, providing reliable technical support for the large-scale popularization of LED digital lights. Attached Figure Description
[0014] Figure 1 It is a circuit schematic. Detailed Implementation
[0015] This embodiment is a preferred embodiment of the present invention. All other embodiments that are the same as or similar to this embodiment in principle and basic structure are within the protection scope of the present invention.
[0016] The solution in this embodiment is a low-cost LED digital light control module. Please refer to the attached document. Figure 1The circuit diagram of this utility model mainly includes the positive and negative terminals of a DC power supply, a voltage limiting resistor R1, a protection resistor R2, a TM1990U1 chip, a capacitor C1, a manual push-button switch S1, and an LED digital control lamp. Pin 1 (DO) of the TM1990 U1 chip is connected to one end of the protection resistor R2, and the other end of the protection resistor R2 is connected to pin DIN of the LED digital control lamp. Pin V+ of the digital control lamp is connected to the positive terminal V+ of the DC power supply; pin V- of the digital control lamp is connected to the negative terminal V- of the DC power supply; pin 4 (GND) of the TM1990 U1 chip is grounded; pin 5 (K) of the TM1990 U1 chip is connected to one end of the manual push-button switch S1, and the other end of the manual push-button switch S1 is grounded; pin 8 (VDD) of the TM1990 U1 chip is connected to one end of the voltage limiting resistor R1 and the capacitor C1, and the other end of the voltage limiting resistor R1 is connected to the positive terminal V+ of the DC power supply, and the other end of the capacitor C1 is grounded.
[0017] Furthermore, in this embodiment, a short press of the manual button switch S1 controls entry into the effect setting mode, allowing switching between different control effects of the LED digital light, with a total of 50 display effects available.
[0018] Furthermore, in this embodiment, pressing the manual button switch S1 for 2-3 seconds enters the speed setting mode. A short press of the manual button switch switches the running speed of the current LED digital light effect, with 11 adjustable levels from 0 to 100%.
[0019] Furthermore, in this embodiment, after briefly pressing the manual button switch S1 to control the LED digital light, the displayed effects include fill, flowing, single color and jump, breathing, wave, etc., and multiple colors are available. It also supports the cascading of 600 RGB chips to control the LED digital light.
[0020] Furthermore, in this embodiment, the control module has a power-off memory function. Before a power outage, the LED digital control light effect and running speed are set, and after a power outage and subsequent power-on, the LED digital control light effect and running speed set before the power outage are maintained.
[0021] Furthermore, in this embodiment, the resistance value of the voltage limiting resistor R1 can be determined according to the voltage between the positive and negative terminals of the DC power supply. If the voltage between the terminals is 24V, the resistance value of the voltage limiting resistor R1 is 1.2 kΩ; if the voltage between the terminals is 12V, the resistance value of the voltage limiting resistor R1 is 500 Ω; and if the voltage between the terminals is 5V, the resistance value of the voltage limiting resistor R1 is 0 Ω.
[0022] Furthermore, in this embodiment, all the chips TM1990 U1 pin 7 (T0), TM1990 U1 pin 6 (T1), TM1990 U1 pin 3 (T2), and TM1990 U1 pin 2 (T3) are connected in parallel to the negative terminal. In this way, the module can simultaneously control RGB three-channel series LED digital control lamp loads such as chips TM1804, TM1809, and TM1934.
[0023] Furthermore, in this embodiment, pins 7 (T0), 3 (T2), and 2 (T3) of chip TM1990 U1 are all connected in parallel to the negative terminal V- of the DC power supply, and pin 6 (T1) of chip TM1990 U1 is connected to the positive terminal V+ of the DC power supply. Thus, this module can simultaneously control RGBW four-channel series LED digital control lamp loads such as chip TM1824, chip TM1812, and chip TM1926.
[0024] Furthermore, in this embodiment, pins 6 (T1) and 2 (T3) of chip TM1990 U1 are all connected in parallel to the negative terminal, and pins 7 (T0) and 3 (T2) of chip TM1990 U1 are connected to the positive terminal V+ of the DC power supply. Thus, this module can simultaneously control LED digital control lamp loads such as chip TM1814 and chip TM1814B.
[0025] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low-cost LED digital control module, characterized in that: This includes the positive and negative terminals of the DC power supply, voltage limiting resistor R1, protection resistor R2, chip TM1990 U1, capacitor C1, manual push-button switch S1, and LED digital control lamp; pin 1 of chip TM1990 U1 is connected to one end of protection resistor R2, and the other end of protection resistor R2 is connected to pin DIN of LED digital control lamp; pin V+ of digital control lamp is connected to the positive terminal V+ of DC power supply; pin V- of digital control lamp is connected to the negative terminal V- of DC power supply; pin 4 of chip TM1990 U1 is grounded; pin 5 of chip TM1990 U1 is connected to one end of manual push-button switch S1, and the other end of manual push-button switch S1 is grounded; pin 8 of chip TM1990 U1 is connected to one end of voltage limiting resistor R1 and capacitor C1, the other end of voltage limiting resistor R1 is connected to the positive terminal V+ of DC power supply, and the other end of capacitor C1 is grounded.
2. A low-cost LED digital control lamp control module according to claim 1, characterized in that: A short press of the manual button switch S1 enters the effect setting mode, allowing you to switch between different control effects for the LED digital light. There are a total of 50 display effects to choose from.
3. A low-cost LED digital lamp control module according to claim 1, characterized in that: Press the manual button switch S1 for 2-3 seconds to enter the speed setting mode. Short press the manual button switch to switch the running speed of the current LED digital light effect. The running speed is adjustable in 11 levels from 0 to 100%.
4. A low-cost LED digital lamp control module according to claim 1, characterized in that: The module has a power failure memory function. Before a power failure, the LED digital control light effect and running speed are set, and after a power failure and power is restored, the LED digital control light effect and running speed set before the power failure will be retained.
5. A low-cost LED digital lamp control module according to claim 1, characterized in that: The value of the voltage limiting resistor R1 can be determined according to the voltage between the positive and negative terminals of the DC power supply. If the voltage between the terminals is 24V, the value of the voltage limiting resistor R1 is 1.2 kΩ; if the voltage between the terminals is 12V, the value of the voltage limiting resistor R1 is 500 Ω; and if the voltage between the terminals is 5V, the value of the voltage limiting resistor R1 is 0 Ω.
6. A low-cost LED digital lamp control module according to claim 1, characterized in that: If pins 7, 6, 3, and 2 of chip TM1990 U1 are all connected in parallel to the negative terminal, then this module can simultaneously control LED digital control lamp loads from chip TM1804, chip TM1809, and chip TM1934 RGB three-channel series.
7. A low-cost LED digital lamp control module according to claim 1, characterized in that: If pins 7, 3, and 2 of chip TM1990 U1 are all connected in parallel to the negative terminal V- of the DC power supply, and pin 6 of chip TM1880 U1 is connected to the positive terminal V+ of the DC power supply, then this module can simultaneously control LED digital control lamp loads of chip TM1824, chip TM1812, and chip TM1926 RGBW four-channel series.
8. A low-cost LED digital light control module according to claim 1, characterized in that: If pins 6 and 2 of chip TM1990 U1 are connected in parallel to the negative terminal, and pins 7 and 3 of chip TM1990 U1 are connected to the positive terminal V+ of the DC power supply, then this module can simultaneously control LED digital control lamp loads of chip TM1814 and chip TM1814B series.