Airflow-Triggered Boost Circuit for Stable Aerosol Heating
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Solution Overview
Problem
The power supplied to the heating body in aerosol-generating devices is unstable due to battery level changes, affecting the aerosol output and user experience.
Innovation Solution
An aerosol-generating device with a microphone controller that detects airflow changes to activate a boost circuit, which increases the voltage to a stable level, and a switch circuit that switches power supply from the battery to the boost circuit, ensuring consistent power to the heating body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a battery is used to directly supply power to the heating body, then the device structure is simple, but the power output to the heating body becomes unstable as the battery level changes
Solution Approach 1:
The patent introduces a boost circuit as an intermediary component between the battery and the heating body. This boost circuit includes a switching element and control circuitry that actively regulate the power transmission, ensuring stable power delivery to the heating body regardless of battery charge level. The intermediary circuit compensates for battery voltage fluctuations, resolving the contradiction between structural simplicity and power stability.
2Device complexity
If a battery is used to directly supply power to the heating body, then the device structure is simple, but the aerosol level consistency deteriorates due to power fluctuations
Solution Approach 1:
The boost circuit serves as a mediator that decouples the heating body from direct battery voltage variations. By maintaining a stable output voltage to the heating body through active regulation, the aerosol generation process receives consistent power, ensuring uniform aerosol production throughout the battery's discharge cycle without requiring complex structural changes.
3Reliability
If the battery level decreases during vaping, then the battery voltage attenuates, but the power output to the heating body should remain stable
Solution Approach 1:
The boost circuit dynamically adjusts its operating parameters (switching frequency, duty cycle) to maintain a constant output voltage to the heating body despite varying input voltage from the battery. As the battery voltage decreases, the control circuitry modifies the switching parameters to compensate, ensuring the heating body receives stable power and maintaining consistent aerosol generation performance throughout battery discharge.
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 device provides stable power to the heating body, improving the vaping experience by maintaining consistent aerosol output despite battery level fluctuations.
Implementation Method 1
a boost circuit, electrically connected between the microphone controller and the power source and configured to be activated on the basis of the first voltage, boost a voltage of the power source, output a second voltage
Implementation Method 2
a heating body, configured to heat an aerosol-generating substrate to generate an aerosol
Data Source
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Figure 5
AI summary
An aerosol generation apparatus (1000). The aerosol generation apparatus (1000) comprises a heating body (400), a microphone controller (300), a power source (500), a boost circuit (100) and a switch circuit (200), wherein the heating body (400) heats an aerosol generation matrix to generate an aerosol; when an airflow change caused by a vaping action is detected, the microphone controller (300) outputs a first voltage; the power source (500) is electrically connected to the microphone controller (300), so as to supply power to the microphone controller (300); the boost circuit (100) is started on the basis of the first voltage, further boosts a voltage of the power source (500), and outputs a second voltage, and a power supply loop used for guiding a current for the heating body (400) is established between the boost circuit (100), the microphone controller (300) and the heating body (400); the switch circuit (200) is electrically connected to the microphone controller (300); and after the microphone controller (300) outputs the first voltage, the switch circuit (200) switches the power source (500) to the boost circuit (100), so as to supply power to the microphone controller (300) by means of the second voltage, and the switch circuit turns on the power supply loop at the same time. The aerosol generation apparatus (1000) can improve the stability of power provided by a battery to the heating body (400).