Single Controller Circuit for Independent LED Light String Control
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Solution Overview
Problem
Existing Christmas tree lighting systems require multiple power supplies and controllers for different light strings, leading to complex circuits and inconvenient control.
Innovation Solution
A unified light string controller with a housing, control circuit board, and wires that connect to multiple light strings, allowing for centralized control through a single controller using high and low levels to manage power supply and lighting effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple power supplies and controllers are used for different light strings, then each light string can be powered and controlled independently, but the circuit becomes complex and control becomes inconvenient
Solution Approach 1:
The patent combines multiple controllers into a single controller that can manage multiple light strings. The controller includes a control circuit board with multiple output terminals, each capable of independently controlling different light strings through high and low level signals, thus reducing circuit complexity while maintaining independent control capability
Solution Approach 2:
The single controller is designed with multi-functional output terminals that can independently control different light strings. Each output terminal can operate autonomously to control its connected light string, providing universal control capability across multiple light strings without requiring separate controllers
2Ease of operation
If multiple controllers are used for different light strings, then each light string can be controlled separately, but the control system becomes inconvenient to operate
Solution Approach 1:
Multiple controllers are merged into a single integrated controller with multiple output terminals. This single controller provides a unified control interface that manages all light strings, improving ease of operation by eliminating the need to interact with multiple separate controllers while maintaining the ability to control each light string independently
3Device complexity
If a single controller controls multiple light strings, then the circuit is simplified and control is convenient, but the controller must handle multiple power supply connections
Solution Approach 1:
The controller serves as an intermediary device between the power supply and multiple light strings. It includes a power supply terminal for receiving DC power input and multiple output terminals for distributing controlled power to different light strings, simplifying the overall circuit while managing power distribution internally
Data Source
AI summary
The present application discloses a light string controller, a light string and a Christmas tree. A light string controller, includes a housing provided with an accommodation space sealed inside, and an opening is provided on two opposite sides of the housing; a control circuit board provided in the accommodation space and provided with a power supply terminal and an output terminal; two wires, passing through two openings of the housing and connected to the power supply terminal and the output terminal of the control circuit board respectively; the power supply terminal is configured to be connected to the DC power supply through one wire of the two wires, the output terminal is configured to be connected to the light string through the other wire of the two wires, a power supply from the power supply terminal to the output terminal is controlled according to an output of high and low levels of the control circuit board.