LED Driver With Universal Control Interface For Protocol Translation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing LED driver systems require unique drivers for each wireless communication protocol and provider's firmware and software interface, leading to high manufacturing costs and complex designs, as small line voltage fluctuations cause significant changes in LED brightness and temperature-dependent electrical properties necessitate constant current regulation.
Innovation Solution
A system comprising a driver and a control module that translates received control signals from various schemes into a predetermined Pulse Width Modulated (PWM) control scheme, making the driver compatible with multiple control modules and reducing the need for multiple driver variants, allowing for universal compatibility and simplified design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If unique drivers are designed for each wireless communication protocol and provider's firmware, then compatibility with specific control modules is improved, but manufacturing cost and device complexity increase significantly
Solution Approach 1:
The driver is designed with a universal control interface that can work with multiple wireless communication protocols (Wi-Fi, Bluetooth, Zigbee) and provider-specific firmwares through a standardized PWM input, eliminating the need for protocol-specific driver variants while maintaining broad compatibility
Solution Approach 2:
A control module serves as an intermediary between various wireless communication protocols and the driver, translating different protocols into a standardized PWM control signal that the driver can process, thereby decoupling protocol diversity from driver design
2Adaptability or versatility
If unique drivers are designed for each wireless communication protocol and provider's firmware, then compatibility with specific control modules is improved, but manufacturing cost increases
Solution Approach 1:
The driver is designed with a universal control interface that can work with multiple wireless communication protocols (Wi-Fi, Bluetooth, Zigbee) and provider-specific firmwares through a standardized PWM input, eliminating the need for protocol-specific driver variants while maintaining broad compatibility
Solution Approach 2:
The driver responds to changes in PWM duty cycle parameters to adjust LED brightness and operating characteristics, allowing a single driver design to accommodate different control requirements through parameter adjustment rather than hardware variation
3Device complexity
If a single driver is designed to work with multiple control modules, then manufacturing cost and device complexity are reduced, but compatibility with various control protocols must be maintained
Solution Approach 1:
A control module serves as an intermediary between various wireless communication protocols and the driver, translating different protocols into a standardized PWM control signal that the driver can process, thereby decoupling protocol diversity from driver design
Solution Approach 2:
The protocol-specific functionality is extracted from the driver and placed into separate control modules, allowing the driver to focus solely on PWM-based control while protocol handling is delegated to dedicated interface components
4Device complexity
If control signals are directly applied to LED driver, then system simplicity is maintained, but line voltage fluctuations cause significant brightness changes in LED
Solution Approach 1:
The driver acts as an intermediary between the control module and LED, receiving PWM control signals and generating stable constant current output that compensates for line voltage fluctuations, thereby isolating the LED from voltage variations while maintaining control simplicity
Solution Approach 2:
The driver incorporates feedback mechanisms that monitor output current and adjust driving parameters in real-time to maintain constant current flow to the LED, ensuring stable brightness output despite variations in input voltage or LED electrical properties
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
This solution significantly reduces manufacturing costs and simplifies the design of LED driver systems by enabling a single driver to work with various control modules, reduces the number of driver variants, and allows for easier UL certification, while enabling upgrades without replacing drivers and simplifying LED control by eliminating the control protocol variant.
Implementation Method 1
A system comprising a driver and a control module that translates received control signals from various schemes into a predetermined Pulse Width Modulated (PWM) control scheme
Implementation Method 2
LEDs require a driver that can convert incoming AC power to a more suitable DC power. Typically, a driver converts 120V 60 Hz AC power to a low-voltage DC power required by LEDs
Implementation Method 3
because LED electrical properties change with temperature fluctuations, the driver regulates and maintains a constant amount of current
Data Source
Figure 1
Figure 2
Figure 3
AI summary
There is provided a system comprising a driver and a control module, the control module capable of translating a received control signal having a first control scheme into a driver control signal having a predetermined second control scheme; and wherein the driver is configured for generating a driver output based on the identity of the first control scheme and the driver control signal. A driver, control module, and a method of controlling an LED system are also provided.