Enablement of a test mode in an electronic module with limited p

Details Enablement of a test mode in an electronic module with limited p Enablement of a test mode in an electronic module with limited p

1990-07-13

1992-06-30

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 731, 324158T, G01R 3128

Patent

active

051266598

ABSTRACT:
A method for establishing a test mode in an electronic module (10) having an internal fault detector (26) that limits the current in an output transistor (Q1) when an abnormal signal level appears at an output pin (16). An abnormal signal level is intentionally established on the output pin to enable the fault detector, and such enablement is sensed to trigger the test mode within the module. Apparatus for implementing this method in a voltage regulator is also disclosed.

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patent: 4752729 (1988-06-01), Jackson et al.
patent: 4809125 (1989-02-01), Matsko et al.
patent: 4912709 (1990-03-01), Teske et al.

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