Analog Current Control Circuit for Processor-Free Aerosol Heating

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing aerosol delivery devices lack an effective analog electronic component for controlling the delivery of aerosol without relying on digital processors, limiting user interaction and device functionality.

Innovation Solution

Incorporating an analog electronic component, such as a non-inverting operational amplifier or linear regulator, to directly control the heating element based on user input, independent of a digital processor, with features like mechanical switches, solid state switches, and indicators for visual feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an analog electronic component is used to control the heating element independently of a digital processor, then device complexity is reduced and reliability is improved, but user interaction capabilities and control precision are limited

Engineering Contradiction:
Improvecontrol system reliabilityVSAvoiduser interaction capability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces digital processor-based control with analog electronic components (operational amplifiers, voltage regulators, transistors) that directly control the heating element based on user input from interfaces like mechanical switches or buttons. This substitution eliminates complex digital processing while maintaining reliable control through continuous analog signal processing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If digital processor-based control is used, then user interaction and control precision are improved, but device complexity and power consumption increase

Engineering Contradiction:
Improvecontrol system complexityVSAvoidpower consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes the digital processor from the control system, retaining only essential analog electronic components needed for basic control functions. This extraction eliminates unnecessary complexity and power consumption associated with digital processing while preserving core control capabilities through simplified analog circuitry.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If analog electronic components are used for direct control, then manufacturing cost and device simplicity are improved, but measurement precision and control accuracy are reduced

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidcontrol accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent utilizes analog electronic components with carefully selected parameters (resistance values, capacitance, operational amplifier gain settings, voltage regulator specifications) to achieve precise control. By optimizing these physical parameters, the system attains adequate control accuracy for aerosol delivery while maintaining manufacturing simplicity and avoiding complex digital processing.

Inventive Principle:
Principle #35Parameter changes

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

Enables user-controlled, efficient vaporization of aerosol precursor compositions with visual feedback, providing a more intuitive and reliable aerosol delivery experience.

Implementation Method 1

direct a constant current to the heating element and thereby cause the heating element to activate and vaporize components of the aerosol precursor composition

Methodology Applied
Scientific EffectResistive heating: Joule Heating

Implementation Method 2

an analog electronic component that in response to user input, and independent of a digital processor, is configured to direct a constant current to the heating element

Methodology Applied
Scientific EffectAnalog electronic control: Ohm's Law

Data Source

PatentUS12472316B2Analog control component for an aerosol delivery device
Publication Date: 2025.11.18 RAI STRATEGIC HOLDINGS INC
  • US12472316B2 patent drawing
  • US12472316B2 patent drawing
  • US12472316B2 patent drawing

AI summary

An analog electronic component for control of an aerosol delivery device is provided. The aerosol delivery device includes a heating element, a reservoir that retains aerosol precursor composition, and an analog electronic component that in response to user input, and independent of a digital processor, is configured to direct a constant current to the heating element and thereby cause the heating element to activate and vaporize components of the aerosol precursor composition in response to user input, and a user input interface through which the user input is receivable.