Electrical short locator

Details Electrical short locator Electrical short locator

G - Physics

01

R

324/58.4

G01R 31/02 (2006.01) G01R 31/28 (2006.01)

Patent

CA 1156722

ABSTRACT OF THE DISCLOSURE A test apparatus for locating electrical shorts that is especially suited for use while an electrical circuit is being fabricated or assembled. A ring counter derives input pulses from a squarewave oscillator. The outputs of the counter are fed through transistors to an array of light emitting diodes. Each diode is connected to an electrical conductor, such as a bus bar, that is to be tested. In the absence of a short between two electrical conductors the diodes are sequentially illuminated. When a short occurs, a comparator/multivibrator circuit triggers an alarm and stops the oscillator and the sequential ener- gization of the diodes. The two diodes that remain illu- minated identify the electrical conductors that are shorted.

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