Thyristor Regulation Circuit for High-Voltage LED Strip Dimming
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing high-voltage LED strip lights have a narrow dimming range and cannot simultaneously adjust brightness and color temperature, requiring additional lines and increasing cost and width, while existing solutions fail to control brightness and color temperature effectively using thyristors.
Innovation Solution
A thyristor regulation circuit for high-voltage LED strip lights, comprising a full-bridge rectifier module and multiple groups of LED circuit modules and thyristor chips, allowing for simultaneous control of brightness and color temperature through a compact design that omits external power supplies and is compatible with existing dimming circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two color loops are connected in common positive or negative mode to achieve color temperature adjustment, then color temperature adjustment is enabled, but the cost increases, the width of the LED strip light increases, and brightness and color temperature cannot be controlled by thyristors
Solution Approach 1:
The LED strip is divided into multiple independent control units, each containing a full-bridge rectifier and thyristor control circuit. This segmentation allows each unit to independently regulate brightness and color temperature without requiring complex inter-unit wiring, thus enabling color temperature adjustment while maintaining circuit simplicity
Solution Approach 2:
The thyristor control circuit is designed to perform multiple functions: it simultaneously controls both brightness dimming and color temperature adjustment by regulating the conduction angle of the thyristors in different color loops. This multi-functionality eliminates the need for separate control circuits, reducing overall device complexity
2Adaptability or versatility
If three lines are applied to the LED strip light to connect two color loops in common mode, then color temperature adjustment is enabled, but the cost increases and the width of the LED strip light increases
Solution Approach 1:
The control approach transitions from spatial wiring complexity to temporal control complexity. Instead of using additional physical lines to connect color loops, the patent uses time-based phase control of thyristors to achieve color temperature adjustment, effectively moving the problem from the spatial dimension to the temporal dimension
3Ease of operation
If thyristors are connected in series in front tangent or rear tangent mode to existing LED strip lights, then thyristor dimming is enabled, but the dimming range is extremely narrow
Solution Approach 1:
The thyristor control circuit dynamically adjusts the conduction angle based on the required dimming level and color temperature. By varying the firing angle of the thyristors in real-time, the circuit achieves a wide dimming range from 0-100% while simultaneously controlling color temperature, overcoming the fixed and narrow dimming range of traditional series connections
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
Enables efficient dimming and color temperature adjustment with reduced installation complexity, energy savings, and environmental benefits by directly connecting to mains electricity, providing comfortable lighting that adapts to user needs while reducing light pollution and costs.
Implementation Method 1
a full-bridge rectifier module, a first group of LED circuit modules, a second group of LED circuit modules, a third group of LED circuit modules
Implementation Method 2
The first group of LED circuit modules includes a first parallel group and a second parallel group that are formed by a plurality of first LED lamps
Data Source
AI summary
A thyristor regulation circuit for a high-voltage light-emitting diode (LED) strip light includes: a live wire input terminal, a neutral wire input terminal, a full-bridge rectifier module, a first group of LED circuit modules, a second group of LED circuit modules, a third group of LED circuit modules, a first thyristor chip, a second thyristor chip and a third thyristor chip. The LED strip light includes a plurality of minimum LED strip light units, the minimum LED strip light units are arranged in parallel, and each of the minimum LED strip light units includes the thyristor regulation circuit for a high-voltage LED strip light. In the thyristor regulation circuit, an external bulky power supply is omitted, and an LED strip light is directly connected to the mains electricity for use, thereby reducing the installation difficulty; and the present disclosure is compatible with existing thyristor dimming circuits.