Electrochemical Sensor Drive Waveform for Lower Power Operation
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Solution Overview
Problem
Existing electrochemical devices face high power consumption due to constant DC voltage application, leading to inefficient operation and increased energy use.
Innovation Solution
Implementing a duty signal with a waveform that alternates between high and low voltages of the same polarity, reducing power consumption while maintaining effective electrochemical action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant DC voltage is applied to the electrochemical element, then stable electrochemical action is achieved, but power consumption increases
Solution Approach 1:
The patent applies periodic square wave voltage signals instead of constant DC voltage to the electrochemical element. The voltage alternates between +3V and -3V with a period of 0.1 seconds, creating periodic electrochemical reactions that maintain effective action while reducing overall power consumption through the alternating polarity that minimizes reverse reactions and maintains ion flow efficiency.
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 duty signal reduces power consumption while preserving high electrochemical performance by minimizing reverse reactions during voltage transitions.
Implementation Method 1
The electrochemical element is configured to perform at least one of dehumidification, humidification, ozone generation, oxygen generation, oxygen removal, or hydrogen generation
Data Source
AI summary
According to one embodiment, an electrochemical device includes an electrochemical element, and a controller. The electrochemical element includes a first electrode, a second electrode, and a first member provided between the first electrode and the second electrode. The controller is electrically connected to the first electrode and the second electrode. The controller is configured to supply a first signal between the first electrode and the second electrode. The first signal includes a waveform repeating in a first period. The waveform includes a first duration of a first voltage of a first polarity, and a second duration of a second voltage of the first polarity. An absolute value of the second voltage is smaller than an absolute value of the first voltage.