B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/102, 327/90
B23K 11/24 (2006.01) B23K 11/25 (2006.01)
Patent
CA 1316575
Abstract of the Disclosure A control apparatus for a single-phase full-wave resistance welder in which anti-parallel connected thyristors are connected in series with a primary winding of a welding transformer and which controls a firing phase .theta.n of the thyristors to adjust a welding current, includes storage means for calculating and storing a square sum SK in such a manner that a sinu- soidal value VK = K0sin.theta.K having a given peak value is divided at predetermined phase intervals (1°) within a predetermined phase range (180°), and the square sum SK = V12 + V22 + V32 +... VK2 of the sinusoidal value VK with respect to each phase .theta.K is calculated in units of divided phases .theta.K (.theta.K = 1°, 2°, 3°,.., 180°) in advance, and Vx calculating means for reading out square sums Sn and Sm of the firing phase .theta.n and energization end phase .theta.m from the storage means and calculating a normalized effective value Vx of an effective voltage applied to the welding transformer.
597473
Kabushiki Kaisha Toshiba
Marks & Clerk
LandOfFree
Control apparatus of resistance welders and control method... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control apparatus of resistance welders and control method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus of resistance welders and control method... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1201712