Programmable Ultrasonic Generator Control Circuit
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Solution Overview
Problem
Conventional ultrasonic vibration apparatuses require complex and costly adjustments to change control systems for different cleaning applications or processes, necessitating multiple apparatuses and complicating inventory and manufacturing.
Innovation Solution
An ultrasonic generator with a programmable multiple control circuit that includes a power control circuit, phase comparison circuit, and frequency control circuit, allowing for easy adjustment of output power, frequency, and oscillation systems through programmable settings and external commands, using FPGA technology for flexible control system changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional independent ICs and circuits are used for power control, frequency control, and signal generation, then the control system can be implemented, but the device complexity increases and adaptability decreases when changing cleaning applications
Solution Approach 1:
The patent implements a universal control architecture where a single ultrasonic vibration apparatus can perform multiple cleaning functions by loading different control programs. The control unit can execute various oscillation systems (sine wave, FM modulated wave, burst wave) and control modes (output power control, output voltage/current control, frequency tracking control) through programmable instructions, eliminating the need for separate apparatuses for different cleaning applications.
Solution Approach 2:
The patent changes the control parameters and program instructions to adapt the ultrasonic vibration apparatus to different cleaning applications. By modifying the control program stored in the control unit, the same hardware can adjust its operating parameters (oscillation type, power level, frequency tracking) to suit various cleaning processes without physical modifications or component replacements.
2Ease of operation
If multiple independent circuits are used for different control functions, then the required control capabilities are achieved, but the ease of operation decreases when adjusting control systems
Solution Approach 1:
The patent replaces physical circuit adjustments and mechanical component changes with electronic program loading. Instead of manually adjusting circuits or replacing components to change control functions, the system allows users to load different control programs into the control unit, transforming complex physical adjustments into simple software operations that can be performed easily and quickly.
3Adaptability or versatility
If different ultrasonic vibration apparatuses are prepared for different cleaning applications, then the adaptability is improved, but the loss of time and cost increases
Solution Approach 1:
The patent prepares multiple control programs in advance and stores them in the control unit's memory. When a different cleaning application is needed, the system can quickly load the pre-prepared program without requiring time-consuming physical reconfiguration or apparatus replacement. This preliminary preparation of control software enables rapid adaptation to different cleaning processes.
4Ease of manufacture
If conventional circuits are used for control functions, then the manufacturing can be performed, but the manufacturing cost increases due to inventory control and manufacturing line complexity
Solution Approach 1:
The patent employs a universal control unit that can perform multiple control functions through programmable instructions, allowing manufacturers to use a single standardized hardware platform for all ultrasonic vibration apparatuses. This universality simplifies inventory control (only one type of control unit needs to be stocked) and streamlines the manufacturing line, reducing production costs while maintaining the ability to provide different cleaning applications.
Data Source
AI summary
An ultrasonic generator is provided, in which the control system can easily be changed in accordance with a cleaning application and a cleaning process. The ultrasonic generator according to the present invention, which causes an ultrasonic transducer to oscillate a signal for ultrasonic vibration, includes a programmable multiple control circuit having a signal generation circuit for generating a signal, and an output adjustment circuit for adjusting the output of the signal from the programmable multiple control circuit, wherein the programmable multiple control circuit has a power control circuit electrically connected to the output adjustment circuit, a phase comparison circuit electrically connected to the output adjustment circuit, a frequency control circuit electrically connected to the phase comparison circuit, and a signal modulation circuit electrically connected to the frequency control circuit via the signal generation circuit.