Resistance solder unit control

Details Resistance solder unit control Resistance solder unit control

1974-01-14

1976-06-08

Skudy, R.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219 85, 219116, H05B 102

Patent

active

039625621

ABSTRACT:
A control for a resistance solder unit for maintaining solder probe temperature within an acceptable range is provided using a redundant interlocking switching circuit. A pair of dual, single pole, single throw, variable time delay electronic relays, and a pair of dual, single pole, single throw electrical relays may be interconnected into the supply line for the AC to DC soldering transformer to control the time and duration of current to a resistance soldering probe. Included may be an autotransformer-coupled feedback from the resistance solder ground return of the soldering probe. Typically, visual and audible signals provide probe power status.

REFERENCES:
patent: 3514569 (1970-05-01), Pfgelzer et al.
patent: 3912897 (1975-10-01), Willersdorf

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