Multi-Load Voltage Protection Using High-Low Voltage Extraction
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Solution Overview
Problem
Conventional voltage protection apparatuses require multiple voltage distributors for each load, leading to increased size and cost as the number of loads increases, making them inefficient for protecting multiple electronic devices from abnormal voltage.
Innovation Solution
An apparatus that extracts the highest and lowest voltages from multiple loads and uses two voltage distribution units to ensure these voltages are within a predetermined range, with a detection unit that outputs a shutdown signal if abnormal voltage is detected, allowing for protection of multiple loads with a minimal number of voltage distributors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple voltage distributors are used for each load in conventional apparatus, then each load can be protected from abnormal voltage, but the size and cost of the apparatus increase as the number of loads increases
Solution Approach 1:
The patent merges multiple voltage distribution functions into a single voltage distributor that can handle multiple loads. Instead of having separate voltage distributors for each load (2n distributors for n loads), the invention uses one voltage distributor that distributes voltage to multiple loads simultaneously, thereby reducing the total number of voltage distributors while maintaining protection capability for all loads
Solution Approach 2:
The voltage distributor in the patent is designed with multi-functionality to serve multiple loads. A single voltage distributor unit is capable of distributing voltage to n different loads and detecting abnormal voltage conditions across all these loads, making the device universal rather than dedicated to a single load
2Reliability
If multiple voltage distributors are used for each load, then voltage protection is provided for each load, but the cost of the apparatus increases with the number of loads
Solution Approach 1:
The patent combines multiple protection functions into a single apparatus, reducing the total component count. By merging the voltage distribution and detection functions into one unit that serves multiple loads, the manufacturing cost is reduced compared to having separate distributors for each load
3Adaptability or versatility
If the number of loads to be protected increases, then more devices need voltage protection, but the size of the protection apparatus increases with conventional designs
Solution Approach 1:
The protection apparatus is designed as a universal device that can protect multiple loads simultaneously. The single voltage distributor and detection unit are configured to monitor and protect n different loads, making the apparatus adaptable to various numbers of loads without requiring proportional increases in apparatus size
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 solution enables effective protection of multiple loads from abnormal voltage with a compact and cost-effective apparatus, maintaining performance regardless of the number of loads, by using two voltage distributors and a detection unit to manage voltage within predetermined limits.
Implementation Method 1
a first operational amplifier to which the lowest voltage and the lowest reference voltage distributed and applied from the first voltage distribution unit are applied, in which a first diode is connected to an output terminal, and which outputs the predetermined signal if the lowest voltage is lower than the lowest reference voltage
Implementation Method 2
a second operational amplifier to which the highest voltage and the highest reference voltage distributed and applied from the second voltage distribution unit are applied, in which a second diode is connected to an output terminal, and which outputs the predetermined signal if the highest voltage is higher than the highest reference voltage
Data Source
AI summary
An apparatus for preventing abnormal voltage, a light emitting module, and a display apparatus are provided. The present apparatus for preventing abnormal voltage extracts the highest voltage and the lowest voltage among voltage applied from a plurality of loads, includes two voltage distribution units distributing the highest voltage and the lowest voltage, and detects whether the highest voltage and the lowest voltage applied from the voltage distribution unit are within a predetermined range. Accordingly, the apparatus for preventing abnormal voltage is not affected greatly in terms of its size and cost even if the number of loads to be protected increases.