LED Lighting System Power Analysis Circuit Brightness Control

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Solution Overview

Problem

Traditional LED lighting control methods require separate control signals or direct voltage application, limiting flexibility and efficiency in controlling LED brightness and heat production.

Innovation Solution

An LED lighting system with power analyzing and processing circuitry that identifies characteristics of the input power, compares them to preset criteria, and adjusts current control circuitry to control LED arrays, allowing for independent control of brightness and heat management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If direct voltage control is used to control LED brightness, then the control system is simple, but the control precision and flexibility are limited

Engineering Contradiction:
Improvecontrol system complexityVSAvoidbrightness control precision
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent introduces power analyzing and processing circuitry as an intermediary between the power source and LED arrays. This circuitry analyzes input power characteristics and generates control signals that precisely regulate LED current, thereby achieving precise brightness control without requiring complex external control systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The LED lighting system performs self-control by using its own power analyzing and processing circuitry to automatically analyze input power characteristics and adjust LED array operation accordingly. This eliminates the need for separate control systems while maintaining high control precision.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If separate control signals are used to control LED brightness, then the control precision is improved, but the device complexity increases

Engineering Contradiction:
Improvebrightness control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the power supply function and control function into a single integrated system. The power analyzing and processing circuitry is incorporated within the LED lighting system itself, combining power delivery and control signal generation into one unified structure, thereby achieving precise control without increasing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The power analyzing and processing circuitry serves multiple functions: it analyzes input power characteristics, generates control signals, and regulates LED operation. This multi-functional component achieves precise brightness control while avoiding the need for separate dedicated control systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Temperature

If direct voltage control is used, then the heat management is difficult to control, but the energy consumption is lower

Engineering Contradiction:
Improveheat production controlVSAvoidenergy consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The power analyzing and processing circuitry continuously monitors input power characteristics and uses this feedback information to adjust LED array operation in real-time. This feedback mechanism enables precise control of both brightness and heat production while optimizing energy consumption based on actual power conditions.

Inventive Principle:
Principle #23Feedback

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 precise control of LED brightness and heat production, offering flexible illumination options and improved energy efficiency by analyzing and adjusting power characteristics, unlike traditional methods that rely on direct voltage control.

Implementation Method 1

the support structure made of rigid material, the support structure being sufficiently heat conductive to provide heat dissipation for the LEDs

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS8791650B2LED lighting system
Publication Date: 2014.07.29 LED SMART
  • US8791650B2 patent drawing
  • US8791650B2 patent drawing
  • US8791650B2 patent drawing

AI summary

An LED lighting system is provided for connection to a variable power source providing input power, the LED lighting system having at least one power analyzing and processing circuitry connecting to the variable power source, and being configured to identify one or more characteristics of the input power, where the characteristics are selected from amplitude, frequency and pulse width of the input power, compare one or more of the characteristics of the input power to preset control criteria either in hardware or software or both to yield a comparison result, and then control the current control circuitry according to the comparison result.