Adaptive Capacitor Voltage Control for LED Illumination Power
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Solution Overview
Problem
Illumination systems using capacitors face limited operational life due to temperature and voltage factors, leading to excessive heat dissipation and reduced efficiency, as traditional power systems provide a fixed voltage, which is not adaptive to varying power needs.
Innovation Solution
An energy storage system with a voltage controller, temperature sensor, and processor that dynamically adjusts the capacitor voltage based on temperature and power requirements, minimizing voltage and heat dissipation, and an adaptive power drive that controls power supply to LEDs according to current needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional illumination power systems provide a fixed voltage sufficient for worst case scenario, then the illumination system can operate in most scenarios, but excess voltage is dissipated as heat
Solution Approach 1:
The patent implements dynamic voltage adjustment by using a processor to monitor LED power requirements and control a voltage controller to provide variable voltage to the capacitor, transitioning from fixed worst-case voltage to adaptive voltage that matches actual power needs, thereby reducing heat dissipation while maintaining operational reliability
Solution Approach 2:
The system changes the voltage parameter dynamically based on actual LED power requirements. The processor calculates required voltage from LED data and illumination cycle requirements, then adjusts the voltage controller output accordingly, optimizing the balance between reliability and energy efficiency
2Use of energy by moving object
If capacitors are used to store energy for powering illumination elements, then energy storage is achieved, but the capacitor operational life is limited
Solution Approach 1:
The patent extends capacitor life by changing the operating parameters - specifically by reducing the voltage to which the capacitor is charged based on actual LED power requirements rather than using fixed worst-case voltage. This reduces stress on the capacitor and extends its operational life while maintaining sufficient energy storage for illumination cycles
Solution Approach 2:
The system uses feedback control where the processor monitors LED power requirements and illumination cycle demands, then adjusts the capacitor charging voltage accordingly. This closed-loop approach ensures the capacitor is charged to the minimum necessary voltage, reducing degradation while maintaining energy storage sufficiency
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
Extends the operational life of capacitors by optimizing voltage and reducing heat dissipation, ensuring efficient energy storage and usage in illumination systems.
Implementation Method 1
The voltage controller is configured to convert a voltage sensed at the power input port to an output voltage supplied to the voltage output port
Implementation Method 2
a temperature sensor configured to sense a temperature of the capacitor
Implementation Method 3
a capacitor configured to store energy for powering the illumination unit
Implementation Method 4
an LED driver configured to draw power from the capacitor and supply power to the illumination port; an illumination unit that includes one or more light emitting diodes (LEDs)
Data Source
AI summary
Systems and methods for adaptive energy storage in an illumination system are disclosed herein. An example method includes (1) obtaining, by one or more processors, data stored at a memory of a illumination unit; (2) obtaining, by one or more processors, a temperature value from a temperature sensor; (3) analyzing, by one or more processors, the obtained data and the temperature value to determine a minimum capacitor voltage to operate LEDs in accordance with an illumination cycle; and (4) control, by one or more processors, a voltage controller to convert an input voltage to the voltage controller to the determined minimum capacitor voltage, wherein the voltage controller is configured to apply the determined minimum capacitor voltage to a capacitor.