Self-Adaptive LED Driving System with Identification Resistor
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Solution Overview
Problem
Current LED lamp systems lack interoperability and resource efficiency, as they require separate adapters and drivers for each type, leading to wasteful replacement and limited interchangeability between different brands and models.
Innovation Solution
An identifiable LED lamp with an identification resistor and a self-adaptive dimming driving system that includes a lamp base, driving circuit, lamp identification circuit, and controller, which automatically adjusts power output based on the resistance value of the identification resistor to match the LED lamp's type and requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LED lamps use separate adapters and drivers for each type, then each lamp can be driven properly, but resource wastage increases and interchangeability is limited
Solution Approach 1:
The lamp base is designed with a universal driving circuit that can drive different types of LED lamps (e.g., 5730, 2835, 5050 LED beads) through a single interface. The system uses an identification resistor and detection circuit to automatically recognize the LED lamp type and adjust driving parameters, eliminating the need for separate adapters and drivers for each LED lamp model.
2Reliability
If LED lamps use separate adapters and drivers for each type, then each lamp can be driven properly, but device complexity increases
Solution Approach 1:
The system merges the functions of multiple separate drivers into a single universal driving circuit integrated in the lamp base. The identification resistor, detection circuit, and driving circuit are combined into one system that automatically recognizes and adapts to different LED lamp types, reducing the number of separate components needed.
3Adaptability or versatility
If the number or driving power of LED light bulbs is not limited, then more flexibility is provided, but interchangeability between different brands and models is hindered
Solution Approach 1:
The system employs a feedback mechanism where the detection circuit measures the resistance value of the identification resistor connected to the LED lamp, sends this information to the control unit, which then automatically adjusts the driving parameters. This closed-loop feedback ensures that the lamp base can interchangeably drive different LED lamp models while maintaining proper operating conditions for each type.
Data Source
AI summary
The present invention provides a self-adaptive dimming driving system, comprising: a lamp base, a driving circuit, a lamp identification circuit, and a controller. The lamp base, where an LED lamp is able to be mounted, comprises an LED power port electrically connected to a power input port of the LED lamp. The driving circuit is connected or coupled to the LED power port and configured to modulate power to be output to the LED lamp and output the modulated power to the LED lamp. The lamp identification circuit outputs a test current to the LED power port in order to turn on an identification resistor of the LED lamp, and receives a voltage parameter of the identification resistor as feedback in order to output a detection signal according to the voltage parameter. The controller receives the detection signal, obtains a correlation parameter of the resistance value of the identification resistor according to the detection signal, and switches a power output mode of the driving circuit according to the correlation parameter.