Gte Automatic Electric Incorporated

Gte Automatic Electric Labs Inc.

Hendrik W Van Husen

Robert Shawn Thompson

William J Daley

A test circuit which detects Hall effect device operate and release time failures. This circuit includes a magnetic field circuit, a comparison circuit, a storage circuit and a visual indication circuit. The magnetic field circuit causes a Hall effect device under test to periodically switch states. The operate and release times of such switching is compared to predetermined thresholds by the comparison circuit. Switching times within the allowable thresholds cause the storage circuit to operate the visual indication circuit.

Hall effect device test circuit

A Hall effect device test circuit which detects Hall effect device operate and release point failures. A magnetic field circuit, an analog-to-digital conversion circuit, a storage circuit, a comparison circuit and a visual indicator circuit are included. The magnetic field circuit causes the Hall effect device under test to switch between its operate and release states. The analog-to-digital conversion circuit provides a digital value, representative of the intensity of the magnetic field existing at the time of switching. These digital values are then stored in the storage circuit. The comparison circuit compares the stored switching values to predetermined thresholds and causes an appropriate visual pass/fail visual signal to be provided.

A Hall effect device test circuit which detects Hall effect device operate and release point failures. A magnetic field circuit, a voltage switching circuit, a comparison circuit, a retriggerable monostable multivibrator circuit and a visual indicator circuit are included. The comparison circuit compares the Hall effect device switching voltage to a predetermined threshold and controls the multivibrator circuit which causes a visual pass/fail signal to be provided.

A power supply packaging arrangement which utilizes transformer as the main structural component. Side panels of the package are connected to the transformer. These panels support the transformer, additional power supply circuitry and the top, front and rear sides of the package.

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Glen Ellyn, IL, United States of America

Hendrik W Van Husen