Intelligent LED lamp strip power supply controller with automatic voltage jump function

Abstract

The invention discloses an intelligent LED lamp strip power supply controller with an automatic voltage jumping function. The intelligent LED lamp strip power supply controller is used for automatically adjusting power supply output according to LED lamp strip types with different voltage requirements. The power supply controller comprises a current detection module, a segmented voltage detection module, a PWM control module and a multi-channel control interface, automatically identifies the voltage requirement of an access load by detecting the load voltage and current of an LED lamp strip, and automatically jumps among a plurality of voltage segments such as 12V and 24V. The system firstly detects load characteristics with small current, enters different voltage section detection ranges according to voltage changes, and ensures that output adapts to voltage and current requirements of corresponding LED lamp strips. The device can be widely applied to power supply management of various types of LED lamp strips, has protection functions of overload prevention, short circuit prevention, overcurrent prevention and the like, and has high adaptability and safety.

Description

Technical Field

[0001] The present invention relates to the field of LED power supply control technology, and in particular to an intelligent LED light strip power supply controller with an automatic voltage jump function, which can automatically adjust the power supply output according to different types of LED light strips and provide appropriate voltage and current support. Background Art

[0002] The power adapter of existing LED light strips usually uses a fixed voltage output, which limits the scope of application of the power supply in practical applications. Different types of LED light strips require different voltages and currents. Manual adjustment is not only time-consuming, but also prone to misoperation. In addition, the traditional power controller lacks intelligent protection when encountering a short circuit or overload, which may cause damage to the power supply equipment. The existing technology is difficult to meet the use requirements of various LED light strips, and there is an urgent need for a power control device that can intelligently identify the load type and automatically adjust the output. Summary of the invention

[0003] The purpose of the present invention is to provide a method to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An intelligent LED light strip power controller with automatic voltage jump function, comprising: a current detection module, used to detect the initial current of the LED light strip load; a voltage detection module, used to detect the load voltage of the LED light strip in sections; a PWM control module, used to adjust the voltage and current of the power supply output; a multi-channel control interface, characterized in that the current detection module detects the load type with a small current when the system is powered on, determines the required voltage segment according to the detected load voltage, and adjusts the output voltage to the adapted voltage segment through the PWM control module, so as to automatically jump the voltage to meet the voltage requirements of different LED light strips.

[0006] Preferably, the voltage detection module is provided with a segmented voltage range, including a 12V voltage segment and a 24V voltage segment. The power supply controller determines whether to enter the 12V voltage segment or enter the second voltage segment detection of 12.5V to 23V by judging whether the load voltage is in the range of 11V to 12.5V.

[0007] Preferably, the PWM control module controls the output voltage and current by adjusting the duty cycle, wherein the PWM output voltage in the 12V mode is set to 1.2V to 2.7V, and the output current is limited to less than 90%.

[0008] Preferably, the multi-channel control interface includes multiple output pins. When the load voltage is detected in the 12V segment, the corresponding control signal is output through the 5th pin; when the 24V segment load is detected, the control signal is output through the 1st, 2nd, 5th and 6th pins respectively.

[0009] Preferably, the current detection module is used to trigger the PWM module to enter a low power consumption detection mode when the load current is less than a preset range, thereby reducing energy consumption.

[0010] Preferably, the segmented detection circuit in the voltage detection module includes a current standard range determination unit, which is used to determine the load current change within the second voltage range to ensure that the current jumps into the 24V voltage segment when the current reaches a predetermined threshold.

[0011] Preferably, the multi-channel control interface has a short-circuit protection function, and when an abnormal increase in current is detected, the output is automatically disconnected to protect the system.

[0012] Preferably, the power controller has an automatic recovery function, which automatically restores the power output after the short circuit or overload state is eliminated.

[0013] Preferably, the PWM control module adjusts the duty cycle to between 5% and 90% when entering the 24V voltage segment to meet the power supply demand of the high-voltage LED light strip.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. An intelligent LED light strip power controller with automatic voltage jump function, which automatically adjusts the output voltage according to the voltage requirements of different LED light strips through the automatic voltage jump function, avoids manual operation and improves adaptability.

[0016] 2. An intelligent LED light strip power controller with automatic voltage jump function, which has short circuit and overload protection functions. When abnormal current occurs, it automatically disconnects the power supply and restores it, improving the safety and stability of the power controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A circuit diagram of an intelligent LED light strip power controller with automatic voltage jump function according to the present invention;

[0018] Figure 2 The figure is a logical architecture diagram of an intelligent LED light strip power controller with automatic voltage jump function according to the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 2 As shown, a technical solution provided by the present invention is:

[0021] An intelligent LED light strip power supply controller with an automatic voltage jump function comprises: a current detection module (1) for detecting the initial current of the LED light strip load; a voltage detection module (2) for segmented detection of the LED light strip load voltage;

[0022] A PWM control module (3) is used to adjust the voltage and current output by the power supply; a multi-channel control interface (4), characterized in that the current detection module (1) detects the load type with a small current when the system is powered on, determines the required voltage segment based on the detected load voltage, and adjusts the output voltage to the adapted voltage segment through the PWM control module (3) to automatically jump the voltage to meet the voltage requirements of different LED light strips.

[0023] Embodiment 1: Basic voltage segment detection In this embodiment, the system first enters the low current mode when powered on, and detects the load type by outputting a small current through the current detection module (1). When the load voltage is between 11V and 12.5V, the voltage detection module (2) determines that the load is a 12V LED light strip, and adjusts the duty cycle through the PWM control module (3) to stabilize the output voltage at 12V. At this time, the 5th pin in the multi-channel control interface (4) outputs a control signal to meet the power supply requirements of the 12V LED light strip.

[0024] Embodiment 2: Automatically jump into the 24V voltage segment When the load voltage exceeds 12.5V but is less than 23V, the system automatically enters the second detection mode. At this time, the voltage detection module (2) continuously monitors the current change and determines that the load current reaches the demand of the 24V LED light strip. The PWM control module (3) adjusts the duty cycle to 90% and outputs a 24V voltage. The 1st, 2nd, 5th and 6th pins of the multi-channel control interface (4) simultaneously output control signals to power the 24V LED light strip.

[0025] Embodiment 3: Short circuit and overload protection In this embodiment, the multi-channel control interface (4) integrates a short circuit protection function. If the current is detected to be beyond the safe range during operation, the short circuit protection circuit (7) automatically cuts off the power output, and restores the power supply through the automatic recovery module (8) after the overload state is removed. This function effectively protects the system in a high-load environment and prolongs the service life of the power supply equipment.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent LED light strip power controller with automatic voltage jump function, comprising: A current detection module (1) is used to detect the initial current of the LED light strip load; a voltage detection module (2) is used to detect the load voltage of the LED light strip in sections; a PWM control module (3) is used to adjust the voltage and current output by the power supply; a multi-channel control interface (4) is characterized in that the current detection module (1) detects the load type with a small current when the system is powered on, determines the required voltage segment according to the detected load voltage, and adjusts the output voltage to the adapted voltage segment through the PWM control module (3) to automatically jump the voltage to meet the voltage requirements of different LED light strips.

2. The intelligent LED light strip power controller according to claim 1, characterized in that: The voltage detection module (2) is provided with a segmented voltage range, including a 12V voltage segment and a 24V voltage segment. The power supply controller determines whether to enter the 12V voltage segment or enter the second voltage segment detection of 12.5V to 23V by judging whether the load voltage is within the range of 11V to 12.5V.

3. The intelligent LED light strip power controller according to claim 1, characterized in that: The PWM control module (3) controls the output voltage and current by adjusting the duty cycle, wherein the PWM output voltage in the 12V mode is set to 1.2V to 2.7V, and the output current is limited to less than 90%.

4. The intelligent LED light strip power controller according to claim 1, characterized in that: The multi-channel control interface (4) comprises a plurality of output pins. When a load voltage in the 12V range is detected, a corresponding control signal is output through the fifth pin; when a load in the 24V range is detected, control signals are output through the first, second, fifth and sixth pins respectively.

5. The intelligent LED light strip power controller according to claim 1, characterized in that: The current detection module (1) is used to trigger the PWM module to enter a low power consumption detection mode when the load current is less than a preset range, thereby reducing energy consumption.

6. The intelligent LED light strip power controller according to claim 1, characterized in that: The segmented detection circuit in the voltage detection module (2) comprises a current standard range determination unit, which is used to determine the load current change within the second voltage range to ensure that the current jumps into the 24V voltage segment when the current reaches a predetermined threshold.

7. The intelligent LED light strip power controller according to claim 1, characterized in that: The multi-channel control interface (4) has a short-circuit protection function, and when an abnormal increase in current is detected, the output is automatically disconnected to protect the system.

8. The intelligent LED light strip power controller according to claim 1, characterized in that: The power supply controller has an automatic recovery function, and automatically recovers the power supply output after the short circuit or overload state is eliminated.

9. The intelligent LED light strip power controller according to claim 1, characterized in that: The PWM control module (3) adjusts the duty cycle to between 5% and 90% when entering the 24V voltage segment, so as to meet the power supply demand of the high-voltage LED light strip.

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