LED Lighting System with Series-Connected Bases
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Solution Overview
Problem
Conventional LED lighting systems face inefficiencies due to power loss and high manufacturing costs, as well as complexity in driving multiple LED devices with varying specifications, which hinders environmental sustainability goals and increases construction costs.
Innovation Solution
A single-stage power converter-based LED lighting system with serially connected LED lighting device connection bases, allowing for equal lamp currents and flexible configuration, reducing the number of waterproof structures and simplifying wiring, while maintaining high power efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple DC/DC converters are used to drive multiple LED lighting devices, then each device can receive appropriate voltage, but the circuit complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent merges multiple DC/DC converter functions into a single DC/DC converter by connecting multiple LED lighting device connection bases in series. This single converter drives multiple LED devices simultaneously, eliminating the need for separate converters for each device while maintaining appropriate voltage delivery through the series connection configuration.
Solution Approach 2:
The single DC/DC converter is designed to universally drive multiple types of LED lighting devices (spotlights, downlights, panel lights) with different power requirements. The system achieves multi-functionality by allowing flexible configuration of connection bases in series, enabling one converter to serve multiple devices that would traditionally require separate converters.
2Manufacturing precision
If multiple DC/DC converters are used to ensure equal current distribution, then current balance is achieved, but the manufacturing cost increases excessively
Solution Approach 1:
Multiple current control functions are merged into a single control circuit that manages the single DC/DC converter. The control circuit regulates the current through the series-connected connection bases, ensuring equal current distribution to all LED devices without requiring separate control circuits for each converter.
Solution Approach 2:
The patent uses identical LED lighting device connection bases with standardized terminals and structures. This copying approach allows modular assembly where multiple identical units are connected in series, simplifying manufacturing and ensuring consistent current characteristics across all devices without requiring custom-designed converters for each application.
3Power
If conventional two-stage power converter is used, then voltage conversion is achieved, but power efficiency deteriorates due to power loss in each conversion stage
Solution Approach 1:
The patent extracts and eliminates the first-stage AC/DC conversion when driving LED devices that already have integrated drivers. By removing this redundant conversion stage and using only a single DC/DC converter stage, the system reduces the number of power conversion operations, thereby minimizing cumulative power losses while maintaining necessary voltage conversion functionality.
4Reliability
If multiple waterproof structures are provided for multiple connection bases, then safety is improved, but the construction process becomes complicated and cost increases
Solution Approach 1:
Multiple waterproof protection functions are merged into integrated waterproof structures that cover multiple connection bases simultaneously. Rather than providing separate waterproof covers for each connection base, the design uses unified waterproof solutions that protect several bases together, maintaining safety while simplifying the construction and installation process.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves balanced luminance across multiple LED devices with improved power efficiency, reduced manufacturing costs, and enhanced safety features, enabling efficient and cost-effective operation of LED lighting systems.
Implementation Method 1
a power converter for converting an input voltage into a first DC voltage and outputting a first current having a substantially constant current value
Implementation Method 2
the lamp voltage is applied across the positive terminal and the negative terminal of the lighting device connection base and is generated by dividing the first DC voltage
Data Source
AI summary
Provided is a LED lighting system, including a lighting device driver having a power converter for converting an input voltage into a first DC voltage and outputting a first current having a substantially constant current value; and a LED lighting device assembly connected to the lighting device driver through two contacts. The LED lighting device assembly includes a plurality of light-emitting diode lighting devices having a plurality of lighting device connection bases and a plurality of LED units. The lighting device connection bases are connected in series with each other to allow the LED lighting devices to be connected in series with each other, and the lamp voltage is applied across the positive terminal and the negative terminal of the lighting device connection base and is generated by dividing the first DC voltage, thereby allowing the lamp currents outputted by the lighting device connection bases are substantially equal.