Dimmable LED Lamp with Integrated AC Detection and PWM Controller
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED lamps with dimming functions require additional professional dimmers and complex installations, increasing costs and reducing compatibility and efficiency.
Innovation Solution
A dimmable LED lamp with an AC input unit, AC detection unit, LED driving and power supply unit, and a controller with PWM output function, allowing for automatic brightness adjustment and storage of desired brightness levels for seamless dimming without the need for additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a professional dimmer is added to LED lamps to implement dimming function, then the dimming function is achieved, but the cost and installation complexity increase
Solution Approach 1:
The patent merges the dimmer function with the LED lamp by integrating a dimming control circuit directly into the lamp's power supply unit. This combines the LED driving function and dimming control function into a single integrated unit, eliminating the need for separate professional dimmers and reducing installation complexity while maintaining the dimming function.
Solution Approach 2:
The power supply unit is designed with multi-functionality, serving both as the LED driver and as the dimming control device. The control circuit can detect AC signal characteristics and adjust LED brightness accordingly, making the power supply unit perform multiple functions (power conversion, LED driving, and dimming control) without requiring additional dedicated components.
2Adaptability or versatility
If a professional dimmer is added to LED lamps to implement dimming function, then the dimming function is achieved, but the cost increases
Solution Approach 1:
By merging the dimming control circuit into the existing power supply unit, the patent eliminates the need for separate professional dimmer components. This integration reduces the total number of parts, lowers material costs, and simplifies manufacturing processes while providing the same dimming functionality.
Solution Approach 2:
The power supply unit performs self-service by incorporating its own dimming control capability. The control circuit within the power supply unit uses the AC signal characteristics to automatically adjust LED brightness, eliminating the need for external dimmer devices and reducing overall system cost.
3Adaptability or versatility
If additional components are added to LED lamps to achieve dimming, then the dimming function is improved, but the compatibility and efficiency decrease
Solution Approach 1:
The patent combines the dimming function with the existing LED lamp structure by integrating the control circuit into the power supply unit. This merging approach maintains compatibility with standard LED lamp configurations and eliminates the need for additional separate components, thereby improving installation efficiency.
Solution Approach 2:
The control circuit is segmented into functional modules within the power supply unit, including AC detection, PWM generation, and LED driving control. This modular segmentation allows for easy integration and maintenance while maintaining compatibility with existing LED lamp designs, improving overall installation 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 step-less dimming from darkest to brightest levels, reduces installation complexity, and decreases costs by integrating all necessary components into a single unit, providing easy installation and maintaining desired brightness levels.
Implementation Method 1
at least one controller with a pulse width modulation (PWM) output function, where the AC detection unit is connected to the controller, and the controller is connected to the LED driving and power supply unit
Implementation Method 2
at least one LED light source assembly, where the LED driving and power supply unit is connected to the LED light source assembly
Data Source
AI summary
A dimmable light emitting diode (LED) lamp is provided. The dimmable LED lamp includes an alternating current (AC) input unit and at least one AC detection unit connected to the AC input unit. The dimmable LED lamp also includes at least one LED driving and power supply unit and at least one LED light source assembly, where the LED driving and power supply unit is connected to the LED light source assembly. Further, the dimmable LED lamp includes at least one controller with a pulse width modulation (PWM) output, wherein the AC detection unit is connected to the controller, and the controller is connected to the LED driving and power supply unit.