TY - GEN
T1 - Vibration reduction of mlccs using vibration-canceling effects of poling process
AU - Kim, Dongjoon
AU - Ko, Byung Han
AU - Park, No Cheol
AU - Park, Young Pil
N1 - Publisher Copyright:
© Copyright 2016 by ASME.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016
Y1 - 2016
N2 - MLCC vibrates due to its piezoelectric characteristics and it makes circuit board vibrate and lead to acoustic noise. In order to reduce vibration, piezoelectric coefficient should be reduced. In this study, poling process was used to decrease piezoelectric coefficient. Due to the electrostriction coefficient, response at fundamental frequency can be cancelled by applying voltage to opposite direction. Through the experiment, vibration-cancelling voltage increases as the poling voltage increases. Also, vibration-cancelling voltage increase inversely proportion to MLCC's capacitance. By applying proper DC bias after poling process, vibration can be reduced.
AB - MLCC vibrates due to its piezoelectric characteristics and it makes circuit board vibrate and lead to acoustic noise. In order to reduce vibration, piezoelectric coefficient should be reduced. In this study, poling process was used to decrease piezoelectric coefficient. Due to the electrostriction coefficient, response at fundamental frequency can be cancelled by applying voltage to opposite direction. Through the experiment, vibration-cancelling voltage increases as the poling voltage increases. Also, vibration-cancelling voltage increase inversely proportion to MLCC's capacitance. By applying proper DC bias after poling process, vibration can be reduced.
UR - http://www.scopus.com/inward/record.url?scp=84991765450&partnerID=8YFLogxK
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U2 - 10.1115/ISPS2016-9596
DO - 10.1115/ISPS2016-9596
M3 - Conference contribution
AN - SCOPUS:84991765450
T3 - ASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016
BT - ASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016
PB - American Society of Mechanical Engineers
T2 - ASME 2016 Conference on Information Storage and Processing Systems, ISPS 2016
Y2 - 20 June 2016 through 21 June 2016
ER -