AC Boosting Circuit for LED Lighting Heat Reduction
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Solution Overview
Problem
Existing LED lighting systems face increased heat generation and reduced service life due to high operating currents required to maintain luminous efficiency when driven by mains electricity, which also increases costs and operating temperatures.
Innovation Solution
An LED lighting device utilizing an AC boosting driving circuit that boosts the mains electricity voltage to 1.5 to 6 times the effective voltage, reducing the operating current and heat generated while maintaining luminous efficiency, comprising a forward and reverse boosting module, a capacitor array, and a constant current driver to stabilize current flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the current passing through the LED load is increased to maintain luminous efficiency, then the luminous efficiency is improved, but the heat generated by the LED load increases greatly
Solution Approach 1:
The patent changes the voltage parameter by introducing an AC boosting driving circuit that transforms the mains electricity voltage to a higher level (1.5 to 6 times the effective voltage). This voltage transformation allows the LED load to operate at a lower current while maintaining the same luminous efficiency, thereby reducing heat generation. The core idea is to change the operating parameters (voltage and current relationship) to resolve the contradiction between efficiency and heat generation.
2Use of energy by moving object
If the current passing through the LED load is increased to maintain luminous efficiency, then the luminous efficiency is improved, but the operating temperature is increased greatly
Solution Approach 1:
The patent applies parameter changes by transforming the voltage parameter through the AC boosting driving circuit. By raising the voltage to 1.5 to 6 times the effective voltage, the system enables the LED load to run at reduced current levels, which directly lowers the operating temperature while preserving luminous efficiency. This parameter transformation is the key mechanism for resolving the temperature-efficiency contradiction.
3Ease of operation
If the voltage of the LED lighting load is set to 1.414 times the effective value of mains electricity, then the LED load can be driven by mains electricity, but the operating current is high causing increased heat and reduced service life
Solution Approach 1:
The patent changes the voltage parameter from the conventional 1.414 times effective value to a higher range of 1.5 to 6 times effective voltage. This parameter change allows the LED load to operate at lower currents, which extends service life and improves reliability while maintaining compatibility with mains electricity through the AC boosting driving circuit.
4Use of energy by moving object
If the amount of LED load is increased to improve luminous efficiency, then the luminous efficiency is improved, but the cost increases
Solution Approach 1:
The patent changes the voltage parameter through the AC boosting driving circuit, enabling the LED load to operate at higher voltages (1.5 to 6 times effective voltage). This allows the system to achieve improved luminous efficiency without increasing the amount of LED load, thereby avoiding the associated cost increase. The parameter transformation enables better efficiency with the same or reduced component quantity.
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 effectively reduces heat and prolongs the service life of LED lighting devices by lowering operating currents, enhancing energy efficiency, and improving power and carbon savings while maintaining luminous efficiency, and ensures safety by discharging residual voltages.
Implementation Method 1
The AC boosting driving circuit is electrically connected the mains AC input terminal and the LED lighting load, and is configured to perform forward boosting and reverse boosting for the mains electricity from the mains AC input terminal so that the voltage of the mains electricity is boosted to 1.5 to 6 times
Implementation Method 2
the LED lighting device driven by boosting alternating current further comprises a capacitor array. A positive electrode of the capacitor array is electrically connected to an output terminal of the forward boosting module and a positive electrode of the LED lighting load
Data Source
AI summary
An LED lighting device driven by boosting alternating current includes a mains AC input terminal, an LED lighting load, and an AC boosting driving circuit. The mains AC input terminal is configured to input mains electricity. The AC boosting driving circuit is electrically connected the mains AC input terminal and the LED lighting load, and is configured to perform forward boosting and reverse boosting for the mains electricity from the mains AC input terminal so that the voltage of the mains electricity is boosted to 1.5 to 6 times to be supplied to the LED lighting load. The LED lighting load achieves the same luminous efficiency, and the current flowing through the LED lighting load is reduced, thereby reducing the heat generated by the LED lighting load. The operating temperature of the LED lighting load is reduced. The service life is prolonged.