H-Bridge Power Regulation for Electrolytic Cell Current Control

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Solution Overview

Problem

Traditional power regulation systems for electrolytic cells are not optimal, as they fail to efficiently manage the direction and rate of electric current, leading to potential damage from excessive current flow due to varying conductivity of electrolyte solutions, which can exceed maximum power supply capacity.

Innovation Solution

A power regulation system that includes a processor to regulate the direction and rate of electric current in real-time using current sense feedback voltage, allowing for software-controlled power management without hardware reconfiguration, and can indirectly control the H-bridge circuit to apply voltage across resistive-capacitive loads, including electrolytic cells.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional power regulation systems are used for electrolytic cells, then the system structure is simple, but the system cannot efficiently manage current direction and rate, leading to potential damage from excessive current flow

Engineering Contradiction:
Improveprotection from excessive currentVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a feedback control system using a current sense resistor to monitor the actual current flowing through the electrolytic cell. The processor continuously reads the voltage across this resistor and adjusts the H-bridge output accordingly, creating a closed-loop system that prevents excessive current while maintaining efficient power delivery.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an H-bridge circuit as an intermediary between the power supply and the electrolytic cell. This intermediary component enables bidirectional current control, allowing the system to regulate both the magnitude and direction of current flow, thereby protecting the cell from damage while maintaining system efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If software-controlled power management is implemented, then adaptability to different electrolyte solutions is improved, but device complexity increases due to processor and control circuitry

Engineering Contradiction:
Improveadaptability to different electrolyte solutionsVSAvoidprocessor and control circuitry
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic control capabilities through software that can adjust power delivery parameters in real-time based on feedback from the electrolytic cell. The system can adapt to varying conductivity conditions of different electrolyte solutions by continuously monitoring current and adjusting the H-bridge output, enabling versatile operation across multiple applications.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent creates a universal power management system that can handle multiple electrolyte solutions and operational conditions through a single processor-controlled platform. The H-bridge circuit and feedback control mechanism provide multi-functional capability, allowing the same system to optimize performance for different electrochemical applications without requiring hardware reconfiguration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If real-time current regulation is implemented using feedback control, then power delivery stability is improved, but device complexity increases due to additional control components

Engineering Contradiction:
Improvepower delivery stabilityVSAvoidcontrol components
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent employs feedback control through a current sense resistor that continuously monitors the actual current flowing through the electrolytic cell. The processor reads this feedback signal and dynamically adjusts the H-bridge output to maintain stable power delivery, ensuring consistent operation despite variations in electrolyte conductivity or cell conditions.

Inventive Principle:
Principle #23Feedback

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 system provides a more constant power source to electrolytic cells by adjusting current flow based on real-time feedback, preventing power failures and optimizing performance across different electrolyte solutions and load conditions.

Implementation Method 1

regulate the direction and rate of electric current in real-time based on the current sense feedback voltage

Methodology Applied
Scientific EffectFeedback control: Feedback

Implementation Method 2

an electrolytic cell is an electrochemical cell that undergoes a redox reaction when electrical energy is applied. It is most often used to decompose chemical compounds, in a process called electrolysis.

Methodology Applied
Scientific EffectElectrolysis: Electrolysis

Implementation Method 3

an electrolytic cell is an electrochemical cell that undergoes a redox reaction when electrical energy is applied

Methodology Applied
Scientific EffectRedox reaction: Redox Reactions

Implementation Method 4

based on the current sense feedback voltage

Methodology Applied
Scientific EffectOhm's law: Ohm's Law

Data Source

PatentUS9145311B2Apparatus for controlling an electrolytic cell in a water purification system
Publication Date: 2015.09.29 GREENE ANTHONY ELMER
  • US9145311B2 patent drawing
  • US9145311B2 patent drawing
  • US9145311B2 patent drawing

AI summary

A system comprises a water purification system having an electrolytic cell to receive a flow of waste water. A power source supplies power to the electrolytic cell. The power source at least comprises an H-bridge controller to apply power to the electrolytic cell. A device senses an amount of current being supplied to the H-bridge controller. An analog-to-digital device outputs a digital signal representative of the sensed current. A processor processes the digital signal and outputs a plurality of pulse width modulated control signals for the H-bridge controller. The control signals control the H-bridge controller to apply the power during a first period of time with a current in a first direction to maintain an average for the sensed current, and to apply the power during a second period of time with the current in a second direction to maintain the average.