Vibrator Driving Circuit With Parallel Capacitor Frequency Compensation
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Solution Overview
Problem
Existing aerosol generating devices face challenges in efficiently driving vibrators to produce consistent aerosols, particularly in compensating for capacitance variations that affect vibration frequency and efficiency.
Innovation Solution
A driving circuit is designed with capacitors connected in parallel between electrical contacts of the vibrator, an inductor, and switches to control power supplies, allowing for adjustment of the vibration frequency by varying the connection method of the capacitors based on the natural frequency of the vibrator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If capacitors are connected in parallel with the vibrator, then the vibration frequency can be controlled and adjusted, but the device complexity increases due to additional components and circuit configuration
Solution Approach 1:
The patent implements dynamic adjustment of vibration frequency by enabling switches that can connect or disconnect capacitors in parallel with the vibrator based on detected natural frequency. This dynamic configuration allows the circuit to adapt its capacitance value, thereby controlling the vibration frequency precisely without requiring a fixed complex circuit design for all possible frequency adjustments.
Solution Approach 2:
The patent employs a feedback mechanism where the natural frequency of the vibrator is detected, and based on this detection, the controller adjusts the capacitance configuration by switching capacitors in or out of parallel connection. This closed-loop feedback system enables precise frequency control while simplifying the overall design by using adaptive adjustment rather than pre-configured multiple circuit variants.
2Productivity
If the vibration frequency is precisely controlled by adjusting capacitor connections, then the aerosol generation efficiency is improved, but the ease of operation deteriorates due to complex switching control requirements
Solution Approach 1:
The patent implements a self-service control system where the controller automatically detects the natural frequency of the vibrator and autonomously adjusts the capacitor connections to achieve optimal vibration frequency for aerosol generation. This eliminates the need for manual intervention or complex user control operations, as the system self-regulates based on real-time feedback, thereby maintaining high efficiency while preserving ease of operation.
Solution Approach 2:
The patent automatically changes the electrical parameters (capacitance values) in response to detected frequency conditions, allowing the system to optimize aerosol generation efficiency without requiring user knowledge or manual adjustment of complex parameters. The controller handles parameter changes dynamically based on operational conditions.
3Adaptability or versatility
If multiple switches and power supplies are added to control capacitor connections, then the adaptability of the device is improved, but the loss of energy increases due to additional active components
Solution Approach 1:
The patent employs periodic switching of capacitors based on detected vibration frequency conditions, rather than continuous operation of all switches and power supplies. The switches are activated only when frequency adjustment is needed, and power is supplied intermittently based on operational requirements. This periodic action reduces energy loss from idle components while maintaining full adaptability when needed.
Solution Approach 2:
The patent selectively disconnects (discards from active use) capacitors and switches that are not currently needed for the operating frequency, and reconnects (recovers) them when frequency adjustment is required. This dynamic activation and deactivation of components minimizes energy consumption from unnecessary active elements while preserving full adaptability for frequency control when operational conditions demand it.
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 solution enables precise control of the vibration frequency, enhancing the efficiency of aerosol generation and preventing overheating, thereby improving the overall performance of aerosol generating devices.
Implementation Method 1
a driving circuit for driving a vibrator of an aerosol generating device, the driving circuit comprising: one or more capacitors compensating for a capacitance of the vibrator
Implementation Method 2
one or more capacitors connected in parallel between the first electrical contact and the second electrical contact, wherein first ends of the one or more capacitors are connected to the first electrical contact and second ends of the one or more capacitors are connected to the second electrical contact, an inductor having a first end connected to the first electrical contact
Data Source
AI summary
A method of controlling an electronic device includes determining whether a vibrator of a cartridge unit is connected to a driving circuit of the electronic device, determining a natural frequency of the vibrator connected to the driving circuit, and controlling a connection method of connecting one or more capacitors each connected in parallel with the vibrator based on the determined natural frequency is disclosed.