MOSFET-Controlled LED Flash Device with Radio Synchronization
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Solution Overview
Problem
Conventional light-emitting devices for flash sources rely on mechanical switches, which are inefficient and lack advanced control mechanisms, limiting their ability to replace traditional light sources effectively due to insufficient brightness and lack of sophisticated control systems.
Innovation Solution
A light-emitting device comprising a light-emitting module with MOSFET-controlled semiconductor switch elements, a radio receiving module for synchronized flashing via time correction signals, and an optical sensor module for adjusting flashing based on external light intensity, enabling precise control over LED elements for improved brightness and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If mechanical switches are used to control light-emitting devices, then the device structure is simple, but the control efficiency and functionality are insufficient
Solution Approach 1:
The patent replaces mechanical switches with semiconductor switch elements (MOSFETs) that are electrically connected to the light-emitting elements. This substitution enables electronic control through control modules and radio receiving modules, dramatically improving control efficiency and automation while eliminating the need for physical mechanical components.
Solution Approach 2:
The patent introduces control modules as intermediary components between the power source and light-emitting elements. These control modules include semiconductor switch elements that act as mediators to regulate power delivery, enabling precise control of flashing patterns and intensity without direct mechanical intervention.
2Illumination intensity
If conventional light-emitting devices are used, then the device structure is simple, but the brightness is insufficient to replace traditional light sources
Solution Approach 1:
The patent divides the light-emitting system into multiple light-emitting elements (such as LED arrays) that can be independently controlled. By segmenting the lighting system and controlling individual elements through semiconductor switches, the device achieves higher overall brightness output while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The patent implements periodic flashing action through controlled alternating current to the light-emitting elements. This periodic switching of multiple high-power LED elements increases the effective illumination intensity over time, allowing the device to replace traditional continuous light sources while using energy-efficient semiconductor components.
3Adaptability or versatility
If mechanical switches are used for flash control, then the control mechanism is simple, but the synchronization capability and functionality are limited
Solution Approach 1:
The patent incorporates radio receiving modules that can receive time correction signals from external sources (such as radio stations). This feedback mechanism allows the control module to synchronize the flashing of light-emitting elements with external time signals, enabling coordinated operation across multiple devices and significantly enhancing synchronization capability.
Solution Approach 2:
The control module is designed with multi-functionality, serving as both a power control unit for the semiconductor switches and a signal processing unit for receiving and interpreting radio time correction signals. This universal design enables the same control module to handle both local flashing control and remote synchronization, increasing adaptability without proportionally increasing complexity.
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, synchronized, and intensity-adjusted flashing of light-emitting elements, enhancing the brightness and control of the light-emitting device, making it suitable for replacing traditional light sources with improved performance and energy efficiency.
Implementation Method 1
the radio receiving module includes a magnetic antenna structure, a radio wave generated by a radio station is received by the magnetic antenna structure of the radio receiving module
Implementation Method 2
The light-emitting module includes a circuit substrate and a plurality of light-emitting elements disposed on the circuit substrate and electrically connected to the circuit substrate
Implementation Method 3
The control module includes a semiconductor switch element having a MOSFET for turning the light-emitting module on or off
Data Source
AI summary
The prevent invention provides a light-emitting device for providing a flash light source comprising a light-emitting module and a control module. The light-emitting module comprises a circuit substrate and a plurality of light-emitting elements disposed on the circuit substrate and electrically connected to the circuit substrate. The control module comprises a semiconductor switch element having a MOSFET for turning the light-emitting elements on or off, wherein the semiconductor switch element is electrically connected to the light-emitting elements thereby the light-emitting elements can flash via the semiconductor switch element alternately turning on and off the light-emitting elements.