Precision linear variable current control
作者： Gary L. Cook , Leonard S. Smith
DOI:
关键词:
摘要: A power supply for a consumable electrode arc welding system includes transformer adapted to be coupled an AC source and having rectified secondary through series inductor the electrode. The current is chopped by MOSFET switch array controlled relatively high frequency pulse width modulator selectively variable pulsed unidirectional flow gun. bridge rectifier connected across auxiliary winding of provide voltage modulator.
lens.org 参考文章(17)
John A. Overman, Welding system with electronic control ,(1986)
Malcolm T. Gilliland, Electronic arc welding station with input voltage compensation ,(1989)
James Christopher Needham, Short-circuit MIG welding ,(1984)
Malcolm T. Gilliland, Welding power supply with short circuit protection ,(1990)
Malcolm T. Gilliland, Distributed station welding system ,(1985)
Richard A. Eldridge, High frequency arc stabilizer ,(1986)
Yukio Kajino, Shinichiro Hashimoto, Toru Goto, Dc arc welding apparatus by high-frequency pulse current ,(1974)
Waichi Nishikawa, Hideyuki Yamamoto, Moritoshi Nagasaka, Pulse arc welding method and device in which pulse current and background current have a constant current characteristic ,(1981)
Takaaki Ogasawara, Hitoshi Kawano, Sadao Nakanishi, Yoshihiro Nakajima, Akihiko Ihochi, Tokuji Maruyama, Method and device for controlling welding power supply to avoid spattering of the weld material ,(1984)
Donald P. Viri, Ronald R. Rothermel, Andrew G. Kimbrough, Gas metal arc welding system ,(1980)