一种单IO口控制的继电器驱动芯片设计思路  

Design of Relay Driver IC with Single IO Port

作　　者：王甲 傅代军 阮颐 宋文博 

机构地区：[1]上海贝岭股份有限公司,上海200233 [2]西安旌旗电子股份有限公司,西安710077

出　　处：《集成电路应用》2017年第5期27-29,共3页Application of IC

摘　　要：在电表设计中,一般来说MCU需要提供2个IO口与继电器驱动电路或继电器控制芯片连接,才能完成继电器拉合动作。这里提出了一种单IO口控制的电表继电器驱动芯片设计思路,主要针对解决在电表设计中MCU的IO资源有限,达到节省MCU的IO口资源的目的,使电能表MCU选型更为便捷,电能表的设计更为简化。Generally speaking, two IO ports of MCU are necessarily connected to relay driver circuit or relay controller to realize the on and off mode of relay in the design of electricity meter. Aiming at the limited IO resources of MCU, we present a design of relay driver IC with single I/O port to save the IO resource of MCU, which leads to a wide choice of MCUs and simplified design of electricity meter.

关 键 词：IO口 继电器驱动 继电器控制 电能表 

分 类 号：TN402[电子电信—微电子学与固体电子学]