Method and apparatus for controlling heat energy of a bonding tr

Details Method and apparatus for controlling heat energy of a bonding tr Method and apparatus for controlling heat energy of a bonding tr

1978-09-28

1981-02-03

Shaw, C. C.

Electric heating

Heating devices

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

H05B 102

Patent

active

042490685

ABSTRACT:
The present invention provides a method and apparatus for controlling the amount of heat energy supplied by a bonding transformer to coil windings to heat the windings to a predetermined temperature level for fusing the windings into an integral mass. This is accomplished by continuously monitoring the current level in the secondary windings of the bonding transformer and comparing the signal produced with a signal preset in a comparator, which preset signal corresponds to the heat energy required by the coil windings to heat them to the predetermined temperature level. The comparator then operates to deactivate the bonding transformer when the monitored signal corresponds to the predetermined temperature level desired in the coil windings.

REFERENCES:
patent: 2489867 (1949-04-01), D'Orio
patent: 3746825 (1973-07-01), Pfaffmann
patent: 3778581 (1973-12-01), Denny
patent: 3932725 (1976-01-01), Ganowski
patent: 4001539 (1977-01-01), Franchi et al.
patent: 4079225 (1978-03-01), Warner

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