Low Voltage LED Driver Segmentation for Safe Installation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for a low voltage system that can be installed, modified, or worked on without requiring permits or inspections, and for an improved dimmable LED driver with enhanced dimming characteristics and power efficiency, particularly allowing lay persons to perform electrical work safely and efficiently.
Innovation Solution
A low voltage system comprising a power supply capable of reducing input voltage to a lower output voltage, connected to low voltage loads through circuit means, and a DC to DC LED driver that provides gradual and constant dimming with improved power efficiency, allowing for the use of AC to DC or DC to AC converters as necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a high voltage system is used, then power transmission capability is improved, but safety and ease of installation deteriorate requiring permits and licensed electricians
Solution Approach 1:
The system segments the electrical installation into high voltage input side and low voltage output side, separated by an isolated power supply unit. This allows the power transmission capability of high voltage to be utilized while the low voltage side can be safely installed and modified by lay persons without permits, effectively resolving the contradiction between power capability and ease of operation.
2Ease of operation
If a low voltage system is used, then ease of installation is improved allowing lay person installation, but power transmission capability deteriorates
Solution Approach 1:
The system divides the electrical distribution into two distinct voltage domains: a high voltage input side for efficient power transmission from the utility grid, and a low voltage output side for safe distribution to multiple loads. The isolated power supply acts as a barrier that enables lay person installation on the low voltage side while maintaining high power transmission capability on the high voltage side.
3Ease of manufacture
If existing LED drivers are used, then LED operation is achieved, but dimming characteristics deteriorate with narrow dimming band and reduced power efficiency
Solution Approach 1:
The LED driver circuit changes its operating parameters dynamically based on the dimming control signal. It maintains constant current regulation across a wide dimming range by adjusting the switching duty cycle and timing, ensuring optimal power efficiency at all brightness levels rather than operating in a narrow band, thereby resolving the contradiction between LED operation capability and power efficiency.
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 safe and efficient installation of low voltage systems by lay persons without permits, while providing improved dimming characteristics and power efficiency in LED drivers, expanding the range of voltage compatibility and usability.
Implementation Method 1
a power supply capable of reducing an input voltage to a lower output voltage
Data Source
AI summary
Low voltage systems and methods, as well as a light assembly and LED driver are provided. In one aspect, a low voltage system is provided that is capable of drawing power from a power source having a first voltage, the system having at least one low voltage power supply connectable to the power source and having an output providing a second voltage that is lower than the first voltage. The system further has at least one low voltage load and circuit means connecting the output of the power supply to the at least one low voltage load. The at least one load can be a light assembly, and the light assembly can comprise one or more light emitting diodes (LEDs). Also provided is an LED driver that provides for one or more improved dimming characteristics. A light assembly employing the LED driver is also provided.