Vibrator Driving Circuit Control Using Test-Signal Frequency Detection
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Solution Overview
Problem
Existing aerosol generating devices lack effective methods for controlling the driving circuit of vibrators to ensure proper operation and efficient aerosol production.
Innovation Solution
A method of controlling the driving circuit by determining the operating frequency of a vibrator through test signals and adjusting the target signal based on the response of the driving circuit, along with a processor to manage the connection and operation of the vibrator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a vibrator is connected to the driving circuit in an aerosol generating device, then aerosol generation capability is improved, but device complexity increases due to the need for frequency determination and control mechanisms
Solution Approach 1:
The system performs preliminary frequency determination by supplying test signals before normal operation. The processor determines the operating frequency of the vibrator in advance through test signal injection and response analysis, storing this information for subsequent target signal generation. This preliminary characterization simplifies the main control process.
Solution Approach 2:
The system uses feedback from the driving circuit's response to test signals to determine the appropriate operating frequency. The processor analyzes the response characteristics (such as resonance peaks or impedance changes) and adjusts the frequency selection accordingly. This feedback mechanism enables adaptive frequency control without requiring complex manual tuning.
2Measurement precision
If test signals are supplied to determine the operating frequency of the vibrator, then measurement precision is improved, but loss of time increases due to the additional calibration steps
Solution Approach 1:
The system applies test signals at multiple different frequencies to ensure accurate determination of the operating frequency. By testing at several frequency points rather than relying on a single predetermined value, the system achieves high measurement precision. The processor identifies the optimal frequency by analyzing responses at multiple test frequencies, ensuring reliable operation.
3Reliability
If the driving circuit is controlled with a target signal at the determined operating frequency, then reliability is improved, but device complexity increases due to the need for dynamic signal adjustment
Solution Approach 1:
The processor performs multiple functions: it generates test signals for frequency determination, analyzes the responses from the driving circuit, determines the operating frequency, and generates the target signal for normal operation. This multi-functionality is achieved within a single control unit, avoiding the need for separate dedicated circuits for each function and thus limiting the increase in overall device complexity.
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 proper operation of the vibrator and efficient aerosol generation by accurately determining the operating frequency, thereby enhancing the performance of aerosol generating devices.
Implementation Method 1
the vibrator may vibrate with ultrasonic waves
Data Source
AI summary
In an electronic device including a driving circuit, it is determined whether the vibrator of the cartridge is connected to the driving circuit of the electronic device, and when the vibrator is connected to the driving circuit, an operating frequency of the vibrator is determined by supplying a test signal to the driving circuit, and a target signal having the operating frequency is supplied to the driving circuit.