LC Composite Component Noise Suppression via Circulating Capacitance
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Solution Overview
Problem
Existing LC composite electronic components face challenges in achieving effective noise suppression across a wide frequency range without increasing their size, as larger filter constants require more layers or a larger electrode pattern, making them less compact.
Innovation Solution
The LC composite electronic component incorporates a multilayer structure with capacitor and coil units, including noise circulating capacitance between coil electrodes, which allows for noise reflection control and reduction without increasing the component's size by utilizing noise circulating capacitance between coil electrodes formed in the multilayer structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large L and C values are used to improve noise reduction effects, then noise suppression performance is improved, but the component size increases due to more layers or larger electrode patterns
Solution Approach 1:
The patent changes the electrical parameters by introducing noise circulating capacitance between coil electrodes, which modifies the impedance characteristics and noise reflection properties without requiring larger physical dimensions. This allows achieving the same noise suppression effect with smaller component size.
Solution Approach 2:
The noise circulating capacitance acts as an intermediary element that enables noise reflection control. By introducing this intermediate capacitive coupling between coil electrodes, the patent achieves improved noise suppression without directly increasing the main inductor or capacitor sizes.
2Reliability
If the number of layers is increased to achieve large L and C values, then noise reduction effects are improved, but the device complexity increases
Solution Approach 1:
Instead of increasing the number of layers to achieve desired L and C values, the patent modifies the electrical parameters by introducing noise circulating capacitance between existing coil electrodes. This approach achieves the required noise reduction performance while maintaining a simpler multilayer structure.
3Reliability
If larger electrode patterns are used to achieve large L and C values, then noise suppression performance is improved, but the area occupied by the component increases
Solution Approach 1:
The patent achieves improved noise suppression performance by changing the electrical parameters through noise circulating capacitance introduction rather than by enlarging electrode patterns. This allows maintaining compact electrode dimensions while achieving the required noise reduction effects.
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 configuration effectively reduces noise passing through signal wiring while maintaining a compact size, achieving a large noise suppression effect with controlled noise reflection and attenuation characteristics.
Implementation Method 1
a noise circulating capacitance is formed between coil electrodes coupled to the second lead-out electrode
Data Source
AI summary
An LC composite electronic component, having a large noise suppression effect without increasing in size, includes a multilayer structure in which first and second capacitor units (10), (20) and first and second coil units (30), (40) are stacked and incorporates four LC resonance circuits. A noise circulating capacitance (C21) is formed between a coil electrode (31a) and a resonance adjusting electrode (51a), and a noise circulating capacitance (C22) is formed between a coil electrode (31c) and a resonance adjusting electrode (51b). A noise circulating capacitance (C23) is formed between a coil electrode (42a) and a resonance adjusting electrode (53a), and a noise circulating capacitance (C24) is formed between a coil electrode (42c) and a resonance adjusting electrode (53b). A noise circulating capacitance (C25) is formed between lead-out electrodes (32a), (41b), and a noise circulating capacitance (C26) is formed between lead-out electrodes (32d), (41d).