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    • 2. 发明专利
    • Power source for electric arc welding
    • 电弧焊电源
    • JP2011167064A
    • 2011-08-25
    • JP2011083892
    • 2011-04-05
    • Lincoln Global Incリンカーン グローバル インコーポレーテッド
    • DANIEL JOSEPH AKOOKEN TODD ERIFUENGU RUO
    • H02M3/28H02M9/00
    • B23K9/1006B23K9/09
    • PROBLEM TO BE SOLVED: To provide a three stage power source for an electric arc welding process, the power source operating efficiently, having good welding performance and being more powerful. SOLUTION: The three stage power source for an electric arc welding process includes: a first stage having an AC input and a first DC output signal; a second stage in the form of an unregulated DC to DC converter having an input connected to the first DC output signal, a network of switches switched at a high frequency with a given duty cycle to convert the input into a first internal high frequency AC signal, an isolation transformer with a primary winding driven by the first internal high frequency AC signal and a secondary winding for creating a second internal high frequency AC signal and a rectifier to convert the second internal high frequency AC signal into a second DC output signal with a magnitude related to the duty cycle of the switches; and a third stage to convert the second DC output signal to a welding output for welding in the electric arc welding process. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供用于电弧焊接工艺的三级电源,电源高效运行,具有良好的焊接性能并且更强大。 解决方案:用于电弧焊接工艺的三级电源包括:具有AC输入和第一DC输出信号的第一级; 具有连接到第一DC输出信号的输入的未调节的DC-DC转换器形式的第二级,以给定占空比高频切换的开关网络,以将输入转换成第一内部高频AC信号 ,具有由第一内部高频AC信号驱动的初级绕组的隔离变压器和用于产生第二内部高频AC信号的次级绕组和用于将第二内部高频AC信号转换成具有第二内部高频AC信号的第二DC输出信号的整流器, 与开关的占空比相关的幅度; 以及在电弧焊接工艺中将第二直流输出信号转换为用于焊接的焊接输出的第三阶段。 版权所有(C)2011,JPO&INPIT