Adaptive Voltage Modulation for Uniform Multi-String Lighting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In light-emitting circuits with multiple light strings connected in series, insufficient or excessive common power supply can lead to uneven lighting and potential damage to light-emitting components due to overheating.
Innovation Solution
An adaptive voltage modulation circuit with a series arrangement of driver circuits and a voltage controlling circuit that adjusts power supply based on feedback signals from each load, ensuring optimal power distribution through a feedback mechanism and power supply instructing signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power supply circuit supplies common power to multiple light strings, then the power supply structure is simple, but the power distribution is uneven causing some light strings to receive insufficient or excessive power
Solution Approach 1:
The patent divides the single power supply into multiple independent power supply circuits, with each circuit dedicated to a specific light string. This segmentation allows each power supply circuit to independently control and optimize power delivery to its associated light string, eliminating the uneven power distribution problem while maintaining overall system simplicity through modular design.
2Power
If a single power supply circuit increases common power to compensate for insufficient power, then power availability improves, but voltage differences between light strings increase causing uneven lighting
Solution Approach 1:
Each power supply circuit is configured with independent power supply parameters (such as voltage and current settings) tailored to the specific requirements of its associated light string. This local quality approach ensures that each light string receives precisely the power it needs for optimal lighting performance, preventing both power deficiency and excessive voltage differences that would cause uneven lighting.
3Power
If common power is increased to ensure sufficient power for all light strings, then power availability improves, but light-emitting components may be damaged due to overheating
Solution Approach 1:
Each power supply circuit independently adjusts its power output based on the real-time operating conditions and power requirements of its associated light string. This dynamic control prevents any single light string from receiving excessive power that could cause overheating, while ensuring all light strings receive sufficient power for proper operation. The independent adjustment capability allows the system to adapt to changing conditions without compromising component safety.
Data Source
AI summary
An adaptive voltage modulation circuit is provided. The adaptive voltage modulation circuit includes a plurality of driver circuits and a voltage control circuit. A first one of the driver circuits outputs a feedback signal to a next one of the driver circuits according to data of a load connected thereto. Each of the driver circuits, except for the first one and a last one of the driver circuits, according to the data of the load connected thereto and the feedback signal from a previous one of the driver circuits, outputs a next feedback signal to a next one of the driver circuits. The last one of the driver circuits, according to the data of the load connected thereto and the feedback signal from a previous one of the driver circuits, instructs the voltage control circuit to supply a common modulation power signal to each of the loads.