Electrical switching arrangement used in TIG welding has a control device connecting a shutdown signal depending on the parameters of the welding process according to the triggering signal to stop charging of the ignition capacitor

摘要

Electrical switching arrangement has a control device (15) connecting a shutdown signal depending on the parameters of the welding process according to the triggering signal to stop charging of the ignition capacitor (8). Preferred Features: A charging current source (7) regulates the charging current using automatic shutdown when an upper threshold value of the electrical voltage is reached. The charging current source is used as a constant current source or a pulsed current source. The control device is formed as a programmable, digital microelectronic device.