Aerosol Heater-Display Power Split to Prevent Screen Flicker
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aerosol-generating devices experience display flickering due to voltage drops caused by internal impedance in the charging circuit, leading to user discomfort as power is supplied to both heaters and displays, which increases the likelihood of flickering as display sizes grow or power consumption rises.
Innovation Solution
The device separates the power supply connections for the heater and display, using a charging circuit for the heater and a power supply with lower internal impedance for the display, along with a threshold voltage to interrupt power to the heater below the display's minimum driving voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If power is supplied to the heater through the charging circuit, then the heater can be operated, but the voltage supplied to the display decreases due to internal impedance causing flickering
Solution Approach 1:
The power supply system is segmented into two independent paths: one path through the charging circuit for the heater, and another direct path from the battery for the display. This segmentation allows each component to receive power independently, preventing the display from being affected by voltage drops in the charging circuit.
Solution Approach 2:
The controller acts as an intermediary that manages power distribution. It controls the charging circuit to supply power to the heater while simultaneously managing the direct power supply to the display, ensuring that the display receives sufficient voltage without being influenced by the charging circuit's internal impedance.
2Area of stationary object
If the display size increases or power consumption increases, then the display functionality is enhanced, but the likelihood of flickering increases due to voltage drops
Solution Approach 1:
By segmenting the power supply into independent paths, the display can be scaled up in size and power consumption without being constrained by the charging circuit's voltage drop limitations. The direct battery connection ensures adequate power delivery for larger displays.
Solution Approach 2:
The power supply architecture is changed from a single path through the charging circuit to a dual-path system where the display receives power directly from the battery. This parameter change in the power distribution system enables larger displays to operate without flickering.
3Device complexity
If a single charging circuit is used for both heater and display, then the circuit structure is simplified, but the voltage drop causes display flickering
Solution Approach 1:
The power supply circuit is segmented into two paths: a simplified charging circuit path for the heater and a direct battery connection path for the display. This segmentation maintains relative simplicity while eliminating the voltage drop issue that caused display flickering.
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 configuration stabilizes the voltage supply to the display, preventing flickering and enhancing user experience by maintaining consistent power delivery to both components.
Implementation Method 1
a heater configured to heat an aerosol-generating substance
Data Source
AI summary
Disclosed is an aerosol-generating device. The aerosol-generating device includes a heater configured to heat an aerosol-generating substance, a display, a power supply configured to supply power to the heater and the display, and a charging circuit configured to interconnect the power supply and the heater, and transmit power supplied from the power supply to the heater, wherein the display is connected to the power supply to receive power from the power supply.