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    • 11. 发明申请
    • VACUUM PLASMA GENERATOR
    • 真空等离子发生器
    • WO2006099759A3
    • 2008-04-10
    • PCT/CH2006000124
    • 2006-03-01
    • OERLIKON TRADING AGTUYMER GERHARDRAMM JUERGENLENDI DANIEL
    • TUYMER GERHARDRAMM JUERGENLENDI DANIEL
    • H01J37/32H01J37/34
    • H01J37/32174H01J37/32091H02M7/10
    • The invention relates to a vacuum plasma generator for providing a plasma discharge (10) for treating work pieces (5) by way of a pulsed plasma process in a vacuum chamber (2). Said vacuum plasma generator comprises a generator output (9, 9') having an AC mains supply (6a), an AC/DC mains rectifier system (6) for rectifying the AC mains voltage to a DC voltage, a filter capacitor (6b), a first stage as clocked DC/DC voltage converter (7) with means for adjusting the DC output voltage which produces an intermediate circuit voltage (Uz), comprising a controlled power switch (7a) which feeds the primary winding of a transformer (14) and the secondary winding of which is connected to a rectifier (15) and a downstream intermediate capacitor (12) and configures a floating transformer secondary circuit (23). Said secondary circuit is connected to a downstream second stage which is a pulse output stage (8) and is connected to the generator output (9, 9'). The DC/DC voltage converter (7) has at least two floating transformer secondary circuits (23) and comprises a switch-over device (20) with a switch controller (22) for optionally switching the floating transformer secondary circuits (23) in parallel or in series.
    • 用于工件(5)用的脉冲等离子体工艺在真空室(2),用于供应等离子放电(10)的真空等离子体发生器被实现,其包括加工:发电机输出(9,9“)与AC电源(6a)中,功率整流器装置(6),用于 其中,中间电路电压(UZ) - 是输出电压,其特征在于所述的受控电源开关(7A) - 执行AC线路电压的成细的直流电压,平滑电容器(图6b),第一级主频DC / DC - 电压转换器(7),用于调节DC 一个变压器(14)的初级绕组馈送,而次级绕组连接到其被连接到下游的第二级,包括一个脉冲的整流器(15)和下游DC链路电容器(12)和浮置互感器二次回路(23) - 在输出级(8)的 形式和这些到发生器输出 (9,9“)连接,其中,所述DC - DC电压转换器(7)包括至少两个浮动互感器二次回路(23),并且包括用于任选地平行或浮动变压器次级电路的串联连接的开关控制器(22)的开关装置(20),(23 )。