Method of manufacturing printed wiring boards for motors

Details Method of manufacturing printed wiring boards for motors Method of manufacturing printed wiring boards for motors

1992-04-16

1993-11-23

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Electrical device making

29846, 324545, 324546, H05K 340

Patent

active

052632407

ABSTRACT:
Circuit ends of a cancel loop circuit and a frequency generator circuit are connected with circuit lands in such a manner that the two circuits are not allowed to electrically communicate with each other. The cancel loop circuit and the frequency generator circuit are subjected to an electrical conductivity test to detect any short circuit therebetween. After successful testing, the lands located adjacent each other at one side of the circuits are connected with each other, thereby electrically communicating the cancel loop circuit and the frequency generator circuit to obtain a completed coil circuit.

REFERENCES:
patent: 4975607 (1990-12-01), Hara et al.
patent: 5072185 (1991-12-01), Rockwell
patent: 5126613 (1992-06-01), Choi

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