A new double single-ended forward arc welding power inverter with IGBT as power device and current PWM controller is introduced in this paper.

提出了一种新型的双重单端正激式弧焊逆变电源，采用IGBT为开关器件，引入了电流型脉宽调制控制器。

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It is clear that the traditional single-ended forward converter is difficult to adapt to the trend, so, it is necessary to find a novel topology.

很显然，传统的单端正激变换器很难适应这一发展趋势，因此，必须找到一种新型的拓扑结构。

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But, despite its merits, the traditional single-ended forward converter has some shortcomings, such as simple circuit, low parts count, low output ripple, etc, it also has some shortcomings.

尽管传统的单端正激变换器有诸多优点，如电路结构简单、元件数量少、输出纹波小等，但是也有其缺点。

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Regehr isn't a prolific scorer, topping 20 points just three times in his career, but the Kings know about his toughness firsthand: Regehr ended Los Angeles forward Justin Williams' season in March 2011, separating his right shoulder with a hard, clean hit along the boards.

WSJ: LA Kings acquire D Robyn Regehr from Buffalo

The Dragons went back to basics, and a series of short-range forward drives ended with a try for the outstanding Owen, the lock reaching over the top of a pile-up on the Exiles' line.

BBC: Dragons 17-45 London Irish

Veteran forward Jochen Hecht ended a 32-game goal drought, dating to Dec. 30, 2011.

WSJ: Pominville leads Sabres in 4-3 SO win over Devils