Hybrid LED Lighting Power Supply with Voltage-Based Source Selection
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Solution Overview
Problem
Conventional solar and wind power-based lighting systems face instability due to weather conditions, leading to insufficient power delivery to LED modules, especially on cloudy days or during short daylight hours.
Innovation Solution
A hybrid power supply system that includes a solar module, an auxiliary power module, and an electric power selection circuit, which determines whether to provide solar electric power or auxiliary electric power to the LED module based on voltage levels, ensuring continuous power delivery through an exterior power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If solar power supply is used to power LED lighting apparatus, then environmental friendliness is improved, but power stability deteriorates due to limited electric power from solar supply under certain weather conditions
Solution Approach 1:
The patent combines solar power module with auxiliary power module (grid power or generator) into a hybrid power supply system. The solar module continues to provide environmentally friendly power while the auxiliary module ensures power stability when solar power is insufficient, thus resolving the contradiction between environmental friendliness and power stability.
Solution Approach 2:
The power supply system is designed to perform multiple functions: it can operate in solar power mode for environmental friendliness, switch to auxiliary power mode for stability, and include battery storage for energy management. This multi-functionality allows the system to adapt to different conditions and maintain both environmental benefits and reliable operation.
2Power
If combination of solar module and wind power module is used, then power supply capability is improved, but reliability deteriorates because both modules may stop operating simultaneously under insufficient weather conditions
Solution Approach 1:
The system incorporates three power sources (solar, wind, and auxiliary grid/generator power) instead of just two renewable sources. This multi-functional power supply architecture ensures that if solar and wind power are insufficient simultaneously, the auxiliary power module can still provide continuous power delivery, thus maintaining reliability while preserving power supply capability.
3Reliability
If electric power selection circuit is added to switch between solar and auxiliary power, then power stability is improved, but device complexity increases
Solution Approach 1:
The electric power selection circuit uses feedback mechanisms to monitor the output of solar and auxiliary power modules, automatically selecting the appropriate power source based on availability and quality. This automated feedback-based selection improves power stability while minimizing the need for complex manual control systems.
Solution Approach 2:
The power selection circuit is designed to autonomously determine and switch between power sources without requiring complex external control. The system self-manages the power selection process by monitoring power availability and automatically routing power from the most suitable source, thereby improving stability while keeping the control architecture relatively simple.
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 system provides a stable power source to LED modules by switching between solar and auxiliary power sources, ensuring continuous operation regardless of weather conditions, thereby enhancing power reliability and reducing power waste.
Implementation Method 1
The solar module is for receiving light energy and converting the light energy into electrical energy, in order to generate a solar electric power
Data Source
AI summary
A light apparatus with a hybrid power supply device and method utilizing the same are disclosed. The light apparatus includes an LED module, a solar module, an auxiliary power module, a voltage level detection circuit, a first switch unit, and a second switch unit. When a voltage of a solar electric power generated by the solar module is greater than a predetermined value, the voltage level detection circuit provides an electrical connection between the solar module and the LED module for enabling a transmission of the solar electric power to the LED module. When the voltage of the solar electric power is smaller than the predetermined value, the voltage level detection circuit provides an electrical connection between the auxiliary power module and the LED module for enabling a transmission of an auxiliary electric power generated by the auxiliary power module to the LED module.