Abstract
Multilayer ceramic capacitors (MLCCs) are commonly used on printed circuit board (PCB) power distribution networks (PDN) for decoupling purposes. However, an MLCC can act as a source to excite PCB vibrations due to noise ripples on the power rail. In this letter, four types of equivalent source configurations are studied and compared to represent the excitation of an MLCC on a PCB driven by power rail noise. The corresponding source values are extracted at test-vehicle PCB resonance frequencies. The investigation of the four equivalent source types involves a comparison between simulated and measured PCB vibration velocity responses triggered by MLCC deformation across an audible frequency band. The advantages of each equivalent source are discussed for specific application scenarios.
Recommended Citation
Y. Ding et al., "Equivalent Source Investigation For PCB Vibration Excited By A Multilayer Ceramic Capacitor," IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers, Jan 2024.
The definitive version is available at https://doi.org/10.1109/TEMC.2024.3374254
Department(s)
Electrical and Computer Engineering
Publication Status
Early Access
Keywords and Phrases
Electromagnetic compatibility; Equivalent source type; Force; Frequency measurement; multilayer ceramic capacitor (MLCC); printed circuit board (PCB) vibration; Resonant frequency; source extraction methodology; Velocity measurement; Vibration measurement; Vibrations
International Standard Serial Number (ISSN)
1558-187X; 0018-9375
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jan 2024
