Light-emitting device ambient light sensing semiconductor switch
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional light-emitting devices rely on mechanical switches for control, which leaves room for improvement in terms of efficiency and functionality, especially in adapting to ambient light conditions.
Innovation Solution
A light-emitting device incorporating a semiconductor switch module connected to an ambient light sensing module, which provides a light intensity signal to control the on/off state of light-emitting elements based on ambient light, enabling adaptive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mechanical switches are used to control light-emitting devices, then the device structure is simple, but the control efficiency and adaptability to ambient light conditions are poor
Solution Approach 1:
The patent replaces mechanical switches with semiconductor switch elements (such as MOSFETs or IGBTs) that are controlled by electrical signals from the control module. This substitution eliminates the need for physical mechanical components, enabling electronic control through the ambient light sensing module while maintaining system reliability and reducing mechanical wear.
Solution Approach 2:
The ambient light sensing module automatically detects ambient light levels and provides light intensity signals to the control module, which then automatically controls the semiconductor switch element to turn the light-emitting elements on or off. This self-service mechanism eliminates the need for manual operation and enables adaptive control based on actual lighting conditions.
2Productivity
If conventional control methods are used, then the device is simple to manufacture, but the functionality and efficiency are limited
Solution Approach 1:
The ambient light sensing module continuously monitors ambient light conditions and provides feedback signals to the control module. The control module processes this feedback and adjusts the state of the semiconductor switch element accordingly, creating a closed-loop control system that optimizes efficiency based on real-time environmental conditions.
Solution Approach 2:
The control module serves multiple functions: it receives light intensity signals from the ambient light sensing module, processes these signals, controls the semiconductor switch element, and can also work with the flash frequency adjusting module. This multi-functionality increases system efficiency without proportionally increasing complexity.
3Ease of operation
If mechanical switches are used, then the device complexity is low, but the control precision and response speed are insufficient
Solution Approach 1:
The patent replaces mechanical switches with semiconductor switch elements that offer precise electronic control. These semiconductor devices can be controlled with high precision through voltage or current signals from the control module, enabling accurate control of the light-emitting elements based on the ambient light sensing module's measurements.
Solution Approach 2:
The control system operates in periodic cycles: the ambient light sensing module continuously detects light levels, the control module processes these signals at regular intervals, and the semiconductor switch element responds by switching the light-emitting elements on or off. This periodic operation ensures precise and timely control responses.
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
The solution allows for efficient and adaptive control of light-emitting elements based on ambient light conditions, enhancing the functionality and efficiency of light-emitting devices by automatically adjusting their operation in response to changing light intensities.
Implementation Method 1
The ambient light sensing module is electrically connected to the control module for receiving an ambient light source. The ambient light sensing module provides a light intensity signal to the control module according to a light intensity provided by the ambient light source
Data Source
AI summary
The present disclosure provides a light-emitting device having an ambient light sensing function, including a light-emitting module, a rectification module, a switch module, a control module, and an ambient light sensing module. The light-emitting module includes a circuit substrate and a plurality of light-emitting elements. The rectification module is electrically connected to the light-emitting module. The switch module includes a semiconductor switch element electrically connected to the light-emitting module. The control module is electrically connected to the rectification module and the switch module. The ambient light sensing module is electrically connected to the control module for receiving an ambient light source. The ambient light sensing module provides a light intensity signal to the control module according to a light intensity provided by the ambient light source, and the light-emitting elements are turned on or turned off by the semiconductor switch element according to the light intensity signal.