燃油系统电磁阀用开关电源的设计  

Design about Switching Power Supply for Electromagnetic Valve of Fuel System

作　　者：何佳[1] 张煜盛 

机构地区：[1]华中科技大学,湖北武汉430074

出　　处：《山东内燃机》2005年第3期15-17,22,共4页Shandong Internal Combustion Engine

摘　　要：针对电压型开关电源在燃油系统电磁阀使用中存在的问题,本文设计了新型电流型开关电源。本文比较了电流型控制器与电压型控制器的技术特点,介绍了电流型PWM控制器UC3844的工作原理及其在燃油系统电磁阀用开关电源中的应用。To prevent from the errors on the voltage - mode switching power supply for electromagnetic valve of fuel system, a new current - mode switching power supply is designed. Tne paper contrasts the technical characteristics of current - mode controller with those of the voltage - mode controller, introduces working principle of the current- mode PWM controller UC3844 and describes its application in electromagnetic valve power supply.

关 键 词：电流型PWM 电压型PWM 燃油系统 电磁阀 开关电源 

分 类 号：TK423.9[动力工程及工程热物理—动力机械及工程]