Self-starting test station

Details Self-starting test station Self-starting test station

1989-05-31

1990-08-28

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

364707, 356319, H02J 100, H02J 700

Patent

active

049528173

ABSTRACT:
A test system in a standalone chassis without a power cord. The testing subsystem (e.g. a spectrophotometer) is microprocessor-controlled, and the microprocessor is disconnected from the battery during normal operation. An ancillary integrated circuit controls the power supply to the microprocessor, and periodically powers up a proximity sensor subsystem (e.g. a photodiode/LED pair), without powering up the microprocessor. The ancillary circuit powers up the microprocessor IF the proximity sensor subsystem, after being activated, indicates that a sample has been inserted by a user. The microprocessor can then operate the testing subsystem, and provide output data to a display driver accordingly.

REFERENCES:
patent: 4409665 (1983-10-01), Tubbs
patent: 4698748 (1987-10-01), Juzwik et al.
patent: 4867563 (1989-09-01), Wurm et al.

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