| 基于单片机的全数字化送丝机电源 |
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| 引用本文： | 定明芳.基于单片机的全数字化送丝机电源[J].工业控制计算机,2011,24(12):95-97. |
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| 作者姓名： | 定明芳 |
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| 作者单位： | 温州科技职业学院,浙江温州,325006 |
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| 摘 要： | 研究了基于平均PID控制的气体保护焊机用全数字化送丝机电源.送丝机电源主电路采用可控硅单相全波整流电路,结构简单,成本低,运行可靠.设计了基于STC12C5616AD单片机的送丝机电源全数字化控制系统,其中硬件电路包括同步信号产生电路,单片机最小系统,光电隔离驱动电路等；软件程序包括同步信号判断程序,平均PID程序,定...
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| 关 键 词： | 数字化送丝机电源 STC12C5616AD单片机 同步信号产生电路 电枢电压负反馈 |
Digital Power Supply for Wire Feeder Based on Average PID Controlling Method |
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| Abstract: | A digital control system based on STC12C5616AD microcontroller is designed in power supply for wire feeder,hardware circuit include Sync signal producing circuit,microcontroller minimize system and photoelectric isolating drive circuit,software program include synchronous signal judgment program,average PID program,timer interruption program,etc.Synchronized signal judgment is finished in the down capture interruption program,the timer interrupt program output SCR trigger pulse according to the result of PID operation and sync signal.The theory of armature voltage negative feedback with armature current positive feedback is deduced,which can realize smooth wire feeding. |
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| Keywords: | digital power supply for wire feeder STC12C5616AD sync signal producing circuit armature voltage negative feedback |
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