PCB MLCC-INDUCED ACOUSTIC NOISE REDUCTION

Capacitors are commonly used in design and manufacturing of PCBs, which may exhibit a vibration effect, such as a piezoelectric effect. This vibration may induce acoustic noise. PCB capacitor-induced acoustic noise mitigation may include receiving an AC input that is converted and applied to a volta...

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Main Authors Rao, Samantha, Alva, Samarth, Kapila, Smit, Singh, Navneet
Format Patent
LanguageEnglish
Published 24.08.2023
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
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Abstract Capacitors are commonly used in design and manufacturing of PCBs, which may exhibit a vibration effect, such as a piezoelectric effect. This vibration may induce acoustic noise. PCB capacitor-induced acoustic noise mitigation may include receiving an AC input that is converted and applied to a voltage rail, which may be used by first capacitor set. An additional capacitor set may receive and invert the voltage rail signal and oscillate (e.g., vibrate) out of phase with the first capacitor set, such that the second capacitor set mitigates or cancels the acoustic noise generated by the first capacitor set.
AbstractList Capacitors are commonly used in design and manufacturing of PCBs, which may exhibit a vibration effect, such as a piezoelectric effect. This vibration may induce acoustic noise. PCB capacitor-induced acoustic noise mitigation may include receiving an AC input that is converted and applied to a voltage rail, which may be used by first capacitor set. An additional capacitor set may receive and invert the voltage rail signal and oscillate (e.g., vibrate) out of phase with the first capacitor set, such that the second capacitor set mitigates or cancels the acoustic noise generated by the first capacitor set.
Author Singh, Navneet
Rao, Samantha
Kapila, Smit
Alva, Samarth
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Snippet Capacitors are commonly used in design and manufacturing of PCBs, which may exhibit a vibration effect, such as a piezoelectric effect. This vibration may...
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SubjectTerms CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
Title PCB MLCC-INDUCED ACOUSTIC NOISE REDUCTION
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