Multi-Inductor Power Supply for Variable-Current Display Loads
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Solution Overview
Problem
Current display devices lack an efficient power provider capable of adapting power voltage supply in response to varying power current demands, leading to inefficient power consumption.
Innovation Solution
A power supply device comprising multiple inductors, transistors, and a power integrated chip (IC) that dynamically adjusts power voltage supply based on power current levels, utilizing different configurations of inductors and transistors to optimize power consumption across varying current ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power provider configuration is used, then device complexity is reduced, but power consumption efficiency deteriorates across varying current levels
Solution Approach 1:
The power provider dynamically switches between different operating modes (first mode using first inductor, second mode using second inductor) based on power current levels. This dynamic adaptation allows the system to optimize power consumption efficiency across varying current demands while managing complexity through controlled configurability rather than fixed single-mode operation.
Solution Approach 2:
The system changes operational parameters by switching between different inductor configurations based on power current thresholds. When power current exceeds the first threshold, the system transitions from the first inductor to the second inductor, effectively changing the electrical parameters to maintain optimal efficiency across different operating conditions.
2Illumination intensity
If power current increases, then luminance increases, but power consumption increases inefficiently
Solution Approach 1:
The system changes the electrical parameters by switching inductors based on power current levels. When power current increases beyond the first threshold, the system switches to the second inductor configuration, which optimizes the power delivery parameters to maintain efficient power consumption even as luminance increases with higher current demands.
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 enables efficient power voltage supply in display devices by reducing power consumption and preventing flicker, enhancing display quality by uniformly generating power voltages across different power current levels.
Implementation Method 1
a first inductor L1; a second inductor L2... supply the power voltage using the first inductor L1 and the power IC when power current flowing through the power line is less than a first reference value
Data Source
AI summary
A power provider includes: first, second, and third inductors; a first transistor connected to the second inductor; a second transistor connected to the third inductor; and a power integrated chip (IC) including input terminals connected to the first, second, and third inductors, and an output terminal connected to a power line. The power provider may supply the power voltage using the first inductor and the power IC when power current is less than a first reference value, supply the power voltage using the second inductor, the first transistor, and the power IC when the power current is greater than the first reference value and less than a second reference value, and supply the power voltage using the second and third inductors, the first and second transistors, and the power IC when the power current is greater than the second reference value.