Universal Emergency Driver for LED Lighting
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Solution Overview
Problem
Existing operating devices for light emitting means are limited in their ability to provide emergency power supply across different types of batteries and light emitting diodes (LEDs) due to the construction of emergency converters, which restricts flexibility and increases manufacturing, storage, and installation costs.
Innovation Solution
An operating device with an emergency driver configured as a one-stage DC/DC converter that can operate as both a buck converter and a boost converter, depending on the relative magnitudes of the battery output voltage and the LED operating voltage, allowing it to work with various battery types and LED voltages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the converter construction is fixed for emergency situations, then the operating device can provide emergency power supply for specific battery and light emitting means combinations, but the device complexity increases and flexibility decreases
Solution Approach 1:
The emergency driver is designed to perform multiple functions by operating in different converter modes (buck and boost) depending on the voltage relationship between battery and light emitting means. This universal design allows a single device to handle various battery types and LED configurations without requiring separate specialized converters, thereby reducing overall device complexity while maintaining reliability across different operating conditions.
2Adaptability or versatility
If different types of operating devices are provided depending on voltage magnitudes, then the emergency power supply can be adapted to different battery and light emitting means combinations, but manufacturing, stock keeping and installation costs increase
Solution Approach 1:
The operating device incorporates a universal emergency driver capable of adapting to different battery voltages and LED forward voltages through configurable converter operation modes. This eliminates the need to manufacture, stock, and install multiple specialized device types, thereby reducing costs while maintaining broad compatibility across different component combinations.
Solution Approach 2:
The emergency driver dynamically adjusts its converter mode (buck or boost) based on the real-time voltage relationship between the connected battery and light emitting means. This dynamic adaptability allows a single device type to serve multiple applications, reducing the need for diverse device inventories and lowering manufacturing and installation costs.
3Adaptability or versatility
If multi-stage driver topologies are used, then the emergency power supply can handle different voltage configurations, but the device complexity and cost increase
Solution Approach 1:
The patent merges the functionality of separate buck and boost converters into a single unified emergency driver stage. By combining these conversion capabilities in one integrated circuit or module with configurable operation modes, the design achieves the voltage adaptation benefits of multi-stage topologies while avoiding their complexity and cost penalties.
Solution Approach 2:
The emergency driver is designed as a universal single-stage solution that can operate in both buck and boost modes. This multi-functional design replaces the need for separate specialized converters for different voltage configurations, thereby reducing device complexity while maintaining the ability to handle various battery and LED voltage combinations.
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 configuration provides increased flexibility and reduces complexity, enabling the same device to be used with different batteries and LEDs, mitigating the issues associated with multi-stage driver topologies and enhancing compatibility and cost-effectiveness.
Implementation Method 1
The emergency driver is configured as a one-stage DC/DC converter
Data Source
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AI summary
An operating device for a light emitting means (8) comprises an emergency driver (10) having terminals for at least one battery (7) to provide emergency power supply. The emergency driver (10) is configured to operate as a buck converter if an output voltage of the at least one battery (7) is greater than an operating voltage of the light emitting means (8) and to operate as a boost converter if the output voltage of the at least one battery (7) is less than the operating voltage of the light emitting means (8).