工业控制计算机GPIO输出电路的设计与优化  

Design and Optimization of 8-channel GPIO Output Circuit

作　　者：程传阳 王振发 

机构地区：[1]研祥智能科技股份有限公司,广东深圳518107 [2]国家特种计算机工程技术研究中心,广东深圳518107

出　　处：《工业控制计算机》2022年第2期33-34,共2页Industrial Control Computer

摘　　要：现今,工业控制计算机8路GPIO输出电路每路的驱动电流只有10mA左右,不能满足某些工控场所所需的大电流驱动的要求。研究了一种功率驱动电路来实现GPIO输出高驱动电流,比一般GPIO输出端提供的驱动电流大100倍左右,安全、可靠、稳定,适用性相对较强,行业认可度也将更高。Nowadays,the driving current of each of the 8 GPIO output circuits is only about 10 mA.It does not meet the high-current drive requirements required by some industrial control sites.This paper studies a power drive circuit to achieve high GPIO output drive current.It is about 100 times larger than the driving current provided by the general GPIO output terminal,and it is safe,reliable and stable.The applicability is relatively wide,and the industry recognition will be higher.

关 键 词：输出电路 功率 驱动 电流 

分 类 号：TP33[自动化与计算机技术—计算机系统结构]