带隔离电源的电磁阀驱动电路的设计及分析  

Design and Analysis of Solenoid Valve Drive Circuit with Isolated Power Supply

作　　者：李加杰[1] 李俊[1] 高振宇[1] 

机构地区：[1]南京工业大学自动化与电气工程学院,江苏南京210000

出　　处：《仪表技术与传感器》2013年第10期103-104,107,共3页Instrument Technique and Sensor

摘　　要：提出了一种新型电磁阀驱动电路,以减小其在运行时对供电电源造成的影响。新设计的电路在电源和驱动方式上作了改进,通过采用新的隔离电源方案能有效减少干扰,提高供电质量;采用PWM驱动方式能减少功率损耗,实现精确控制。文中分析了电路的工作原理,并由实验测出了输出波形。该电路在实验室测试中运行稳定,即将在挖掘机控制器上使用。A new type of electromagnetic valve drive technology was proposed in order to reduce the influence of the power supply. Power supply and drive method of the new circuit were improved. New isolated power program can effectively reduce inter- ference and improve the quality of power supply. PWM drive method can reduce the loss of power and achieve precise control. The working principle of the circuit was analyzed, and the output waveform was displayed. The circuit in laboratory tests runs stable, and will be used in the excavator controller.

关 键 词：电磁阀 隔离电源 驱动电路 PWM 

分 类 号：TM921.5[电气工程—电力电子与电力传动]