关于HPB与NVDC架构

刚接触充电类的IC，网上看到充电IC有HPB与NVDC架构，搜索不到详细资料，可以请TI专业技术人员帮忙科普一下这两种架构图以及各自优缺点吗？

Star Xu：

HPB： hybrid power boost mode by allowing battery discharge energy to system
when system power demand is temporarily higher than adapter maximum power level so the adapter does not
crash.
NVDC ：Narrow VDC architecture (NVDC) with BATFET separating system from battery. The
minimum system voltage is set by MinSystemVoltage(). Even with a deeply depleted battery, the system is
regulated above the minimum system voltage.