摘要
介绍了智能功率集成芯片L292的结构、功能和实际应用控制电路;针对埋弧焊送丝系统的要求,采用MOSFET与L292集成电路组成的四象限H桥PWM控制直流电机伺服电路,采用电弧电压负反馈闭环控制,减少了送丝机电惯性与速度滞后现象,提高了埋弧焊送丝系统的稳定性,从而改善了焊接质量。
This paper introduces the structure,function and practical application of control circuit of smart power IC L292.In accordance with the requests of submerged-arc welding wire-feed system,using the four-quadrant H Bridge PWM control DC motor servo circuit composed by MOSFET and L292 integrated circuit and are voltage negative feedback loop control to reduce the phenomena of electrical inertia and rate lag of wire feeder,raise the stability of submerged-arc welding wire-feed system ,thus improving the quality of welding.
出处
《电焊机》
2007年第11期53-55,共3页
Electric Welding Machine
