【摘要】 研制了以单片机AT89C51为控制核心的FB-ZVZCS精密逆变电阻焊机,配合UC3846为控制核心的电源,可以完成覆盖焊接全部功能。通过单片机系统的程序设计可以完成点焊循环工作过程,单片机还能对焊接参数进行优化匹配,使焊接电源具有优良的特性。该电焊电源是一种最有效的电阻点焊接控制设备,通过快速参数组合可以达到最佳的焊接效果。更多还原

【Abstract】 A zero-voltage and zero-current switching(ZVZCS) inverter resistance welding machine is developed,which realizes ZVS for the leading leg and ZCS for the lagging leg.IGBT is adopted for the switching device,the LPC936 signal-chip microcomputer as core of controlling system is used.The conclusion is showed that the power supply is controlled simply,the control precision is high and the control performance is excellent furthermore all sorts of protecting steps are very effective.更多还原