Resonant Atomizer Control for RC Oscillator Frequency Offset
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Solution Overview
Problem
The frequency offset caused by errors in the internal RC oscillator of the controller affects the atomization rate and inhalation experience in electronic atomization apparatuses due to variations in production processes and temperature sensitivity.
Innovation Solution
A controller provides a basic pulse signal and multiple reference pulse signals with offset frequencies to the resonant circuit, selects one based on resonant parameter comparisons, and outputs the selected signal during the resonant circuit's operation to stabilize the atomization process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If an internal RC oscillator is used to generate clock signals for the resonant circuit, then the device complexity is reduced and manufacturing cost is lowered, but frequency precision deteriorates due to production variations and temperature sensitivity
Solution Approach 1:
The patent applies preliminary action by pre-calibrating the frequency offset of the RC oscillator during manufacturing and storing calibration data in memory. Before normal operation, the system retrieves this pre-prepared calibration information to compensate for frequency deviations, eliminating the need for complex real-time frequency measurement and adjustment mechanisms.
Solution Approach 2:
The patent changes the operating parameters of the RC oscillator by adjusting its frequency offset based on stored calibration data. The controller modifies the oscillator's frequency parameter to match the actual resonant frequency of the resonant circuit, thereby compensating for manufacturing variations and temperature effects without adding hardware complexity.
2Productivity
If the resonant circuit operates at high frequency to achieve fast atomization, then productivity is improved, but frequency offset has a greater impact on atomization rate and inhalation experience
Solution Approach 1:
The patent implements feedback by continuously monitoring the actual resonant frequency of the resonant circuit and comparing it with the target frequency. Based on this feedback, the controller dynamically adjusts the operating frequency of the resonant circuit to maintain optimal atomization performance, ensuring consistent inhalation experience even at high operating frequencies.
Solution Approach 2:
The system performs preliminary frequency calibration and stores optimal operating parameters before actual use. This pre-prepared frequency data enables the resonant circuit to operate at high frequencies with minimal frequency offset, ensuring both high atomization rate and reliable inhalation experience from the start.
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 approach stabilizes the atomization rate and inhalation experience by accurately matching the resonant circuit frequency, reducing the impact of RC oscillator errors and temperature variations.
Implementation Method 1
a susceptor, configured to be penetrated by the changing magnetic field to generate heat, to heat an aerosol-forming substrate to generate an aerosol
Implementation Method 2
a susceptor generates heat in a changing magnetic field generated by a resonant circuit, so that the liquid substrate is heated to be vaporized
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An electronic atomization apparatus (100) and a control method therefor. The electronic atomization apparatus (100) comprises a resonant circuit (222); a susceptor (21); and a control wherein the controller is configured to provide to the resonant circuit (222) a basic pulse signal and a plurality of reference pulse signals, which have frequency offsets with respect to the basic pulse signal, acquire a plurality of resonance parameter values from the resonant circuit (222), and perform screening on the basis of the comparison of the plurality of resonance parameter values, so as to obtain one reference pulse circuit (222) during the operation of the resonant circuit (222). In the electronic atomization apparatus (100) and the control method therefor, by meaning of screening a plurality of reference pulse signals, which have frequency offsets with respect to a basic pulse signal, so as to obtain a reference pulse signal, and outputting the obtained reference pulse signal to the resonant circuit (222) during the operation of the resonant circuit (222), the atomization rate and vaping experience are prevented from being affected by a frequency offset caused by an error in an RC oscillator.