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基于DSC的数字化CO2逆变焊机设计

Welding Technology(2013)

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Abstract
针对CO2逆变焊机,为了降低IGBT开关损耗和实现焊接电源动特性高精度控制,本设计主电路采用全桥软开关逆变结构,控制电路以数字信号控制器DSC为核心,采用中断方式获得控制时序,经CMOS电平转换器得到IGBT驱动信号,实现全数字化PWM脉宽调制,控制波形稳定.
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