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公开(公告)号：US20230223204A1
公开(公告)日：2023-07-13
申请号：US17572053
申请日：2022-01-10
申请人： Apple Inc.
发明人： Gang Ning , Jiaqing Xi , Felix Ren
CPC分类号： H01G9/0425 , H01G9/008 , H01G9/15
摘要： Many electronic devices may employ electrolytic polymer capacitors in their power supplies for noise filtering, decoupling/bypassing, frequency conversion and DC-DC and AC-DC conversion. However, some polymer capacitors exhibit an anomalous charging current phenomenon, which may prevent proper charging and cause failure in power circuits of the electronic devices. Disclosed herein are polymer capacitors that have a wide band gap material layer between an insulator/dielectric and a polymer cathode, a charge depletion region in the insulator/dielectric, or both, that may mitigate the anomalous charging current.
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公开(公告)号：US11705288B1
公开(公告)日：2023-07-18
申请号：US17572053
申请日：2022-01-10
申请人： Apple Inc.
发明人： Gang Ning , Jiaqing Xi , Felix Ren
CPC分类号： H01G9/07 , H01G9/0425 , H01G9/15
摘要： Many electronic devices may employ electrolytic polymer capacitors in their power supplies for noise filtering, decoupling/bypassing, frequency conversion and DC-DC and AC-DC conversion. However, some polymer capacitors exhibit an anomalous charging current phenomenon, which may prevent proper charging and cause failure in power circuits of the electronic devices. Disclosed herein are polymer capacitors that have a wide band gap material layer between an insulator/dielectric and a polymer cathode, a charge depletion region in the insulator/dielectric, or both, that may mitigate the anomalous charging current.
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