智能电表主控芯片中的电源设计

Design of Power Supply in Main Control Chip of Intelligent Meter

对于智能电表的设计而言,由于其使用场景的特殊性,主控芯片的供电可以是电池或变压器等。因此对于电能表主控芯片的设计来说,其内部的电源设计就变得尤为重要。重点论述电能表主控芯片中电源管理的设计,包含POR、BOR和电源切换开关的设计等。

Due to the particularity of application,the power supply of MCU in the design of smart meter could be battery or transformer,etc.Therefore the internal power design of master MCU of electric energy meter is especially important.The paper will focus on the design of power management of master MCU in electric energy meter,which includes POR,BOR and power switch,etc.