Method and apparatus for providing thermodynamic protection of a

Details Method and apparatus for providing thermodynamic protection of a Method and apparatus for providing thermodynamic protection of a

1990-06-26

1991-04-02

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

324158T, 324158SC, 361 79, 364483, G08B 2100

Patent

active

050050087

ABSTRACT:
An apparatus for preventing damage to the output stage of a driver circuit for use in an overdrive/functional tester, while the output stage is providing logic high or logic low signals, is shown to include a first sensor for sensing the current in the output stage, a second sensor for sensing the voltage in the output stage, a multiplier for multiplying the sensed current with the sensed voltage to determine the power dissipated in the output stage, a filter to account for thermal/time characteristics in the determined power dissipated and a comparator for comparing the filtered power with a power reference value and for generating an indication signal reflective of such comparison.

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patent: 4937697 (1990-06-01), Edwards
IBM Tech Discl. Bulltn, "Peak Power Detection Ckt", Higuchi et al.; vol. 17, #12, 5/75, pp. 3724-3725.

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