DC25_SLIDES_Drive_RippleCurrentAnIncreasinglyRelevant_Mao.pdf

1、Information Classification:GeneralWelcome to ConferenceJanuary 2830,2025Santa Clara Convention Center1ExpoJanuary 2930,2025 Information Classification:GeneralRipple Current:An Increasingly Relevant Test to Complement Design ConsiderationsVincent Mao,(Kyocera-AVX Components)Vincent Mao(Kyocera-AVX Co

2、mponents),Joe Hock(Kyocera-AVX Components),Caleb Winfrey(Kyocera-AVX Components)2Information Classification:GeneralImageSPEAKERSVincent MaoSr.Test Engineer,Kyocera-AVX ComponentsVincent.maokyocera-|www.kyocera-Vince is a senior test engineer at Kyocera-AVX Components and has been developing the ripp

3、le current test methodology over the past four years.He also runs both electrical and physical ESR characterization for capacitor products.Vinces test experience in the signal integrity space includes working with both IC server and memory technology at Intel as well as memory testing at Micron.He h

4、olds a doctorate from Duke University in nanotechnology research.3Information Classification:General What is Ripple Current?Test Capability Test Apparatus Voltage vs.Current-Limited Regions Factor Affecting Temperature Rise Capacitor Types(DUTS)Test Procedure Results Future ModificationsOverview4Inf

5、ormation Classification:General Capacitors block DC current and pass AC current DC current=0,no heat is generated in the capacitor AC current generates heat o Real component of impedance results in heat Impedance matching is required to maximize power delivery at target frequency Low frequencies=hig

6、h impedance o Voltage rating limits max power at these levelsRipple Current =(2+()2,=12 50.0010.010.11101001000100000.1110100100010000Z21()Frequency(MHz)06035U111JAT2AZ21-P1FrXCXLInformation Classification:General Impedance depends on frequency and capacitance Low frequency is voltage-limitedoInvers