Atomizer Power Control for Battery and Coil Resistance Drift
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Solution Overview
Problem
Existing electronic smoking devices face issues with inconsistent power supply due to varying battery voltage and heating element resistance, leading to inconsistent vaporization and aerosol production.
Innovation Solution
A dynamic output power management unit (PMU) that adjusts the discharging time of the power source based on real-time resistance and voltage measurements, using pulse width modulation and reference resistors to maintain consistent energy delivery to the heating element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple power supply and heating element connection is used, then the device structure is simple, but the power supply becomes inconsistent due to battery voltage decrease and heating element resistance variation
Solution Approach 1:
The patent implements dynamic output power management that continuously adjusts the power supplied to the heating element based on real-time battery voltage and heating element resistance measurements. This dynamic adjustment ensures consistent power output despite variations in battery voltage and heating element resistance, resolving the contradiction between simple structure and reliable power supply consistency
Solution Approach 2:
The system incorporates feedback mechanisms by measuring battery voltage and heating element resistance in real-time, then using this information to adjust the power output dynamically. This closed-loop feedback control maintains consistent power delivery to the heating element while accounting for component variations, achieving reliability without excessive structural complexity
2Power
If the power supply voltage is maintained at high levels, then the vaporization performance is improved, but the battery depletes faster reducing usage duration
Solution Approach 1:
The dynamic output power management system adjusts power levels in real-time based on battery voltage and heating element resistance conditions. This allows the system to maintain high power output when needed for optimal vaporization performance while reducing power consumption during normal operation, thereby extending usage duration without sacrificing peak performance capability
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
Ensures consistent vaporization and aerosol production across puffs by compensating for battery voltage drops and heating element resistance variations, enhancing user experience and compliance with regulatory standards.
Implementation Method 1
an electrical resistance heating element
Data Source
Figure 1
Figure 1A~1B
Figure 2
AI summary
An electronic smoking device is disclosed, the electronic smoking device comprising: an atomizer including a heating element (10); a power source (20) connected to the heating element (10) and, via a first switch (30), to a controller; and a voltage detector (201) configured to detect at least one of: an output voltage of the power source (20), a voltage drop across a reference element (40) connectable in series with the heating element (10), and a voltage drop across the heating element (10), wherein the controller is configured to adjust electrical power supplied from the power source (20) to the heating element (10) based on a resistance value of the reference element (40) and a result of the detection performed by the voltage detector (201).