Power management circuit for a portable electronic device including usb functionality and method for doing the same
作者： Vincenzo Polisi , Patrizia Milazzo , Giuseppe Platania , Alexandre Balmefrezol
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摘要: A Power Management Circuit for a portable electronic device comprising an internal battery to be charged either through first interface or AC_DC conversion circuit. The circuit comprises buck/boost converter having Switched Mode Supply (SMPS) mode which can controlled in buck boost mode, said controller being associated with external coil the purpose of embodying charging (USB). further second also mode. Bypass circuits are used performing, under control circuit, bypass voltage generated by controllers when (SIM/MMC).
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