High-Power Fractional-Order Capacitor Control via Digital Signal Processor
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Solution Overview
Problem
Current fractional-order capacitors are limited to milliwatt-level power and are not easily adaptable to higher power scenarios, restricting their application, and existing methods struggle to design capacitors with orders greater than 1.
Innovation Solution
A high-power adjustable high-frequency fractional-order capacitor system with an order greater than 1, utilizing a high-frequency alternating current inverter circuit and a digital signal processor-based controller to generate a control signal that adjusts the input current and voltage to satisfy the fractional-order capacitor definition, allowing for flexible adjustment of capacitance and order.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional resistors, capacitors, inductors, and operational amplifiers are used to construct fractional-order capacitors, then the fractional-order capacitor can be implemented, but the power level is limited to milliwatt-level
Solution Approach 1:
The patent replaces traditional passive circuit elements (resistors, capacitors, inductors, operational amplifiers) with a high-frequency alternating current inverter circuit controlled by a digital signal processor. This substitution enables the system to achieve high-power operation (from milliwatt-level to kilowatt-level) while maintaining fractional-order capacitor functionality, thereby expanding adaptability to various power scenarios.
2Ease of manufacture
If fractal geometry and silicon process are used to manufacture fractional-order capacitors, then the capacitor can be manufactured, but the order is restricted to less than 1
Solution Approach 1:
The patent uses a digital signal processor to dynamically adjust control parameters of the inverter circuit, enabling the fractional-order capacitor to operate with orders greater than 1. This parameter-based control approach replaces the fixed-order limitation of fractal geometry and silicon process manufacturing, allowing flexible adjustment of the order parameter to meet different application requirements.
3Power
If a high-frequency alternating current inverter circuit is used, then high-power and high-frequency operation is achieved, but the device complexity increases
Solution Approach 1:
The high-frequency alternating current inverter circuit serves multiple functions: it generates the high-frequency alternating current, provides high-power operation capability, and enables fractional-order capacitor functionality with adjustable order and capacitance. By integrating these functions into a single circuit controlled by a digital signal processor, the patent reduces overall system complexity compared to using separate components for each function.
Data Source
AI summary
The present invention provides a high-power adjustable high-frequency fractional order capacitor with an order greater than 1, and a control method thereof. The fractional-order capacitor comprises an alternating current input module, a coupling impedance, a high-frequency alternating current controlled voltage source, a controller and an alternating current input sampling module. The controller generates a corresponding control signal according to an input voltage signal and an input current signal which are acquired by the alternating current input sampling module, and controls an output voltage of the controlled power source, such that an input current and an input voltage satisfy a current-voltage relationship of the fractional-order capacitor. The obtained relationship between the input current and the input voltage is consistent with the definition of the fractional-order capacitor with the order greater than 1.