Circuit probing system

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor

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324158F, G01R 1512, G01R 3102

Patent

active

050235451

ABSTRACT:
A probing system for determining a voltage at a node during normal operation of a circuit. An input driver drives the circuit normally. A normal output on an output line associated with the node, is recorded. A probe is brought in contact with the node. Various node voltages are applied to the probe and thus to the node, until the output on the output line matches the recorded output. The probe voltage that creates the match is the voltage at the node, during normal operation of circuit.

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patent: 4791357 (1988-12-01), Hyduke
patent: 4796259 (1989-01-01), Troy
Marques, "Probing Chip Nodes with Minimum Disturbance"; Electronics, Aug. 28, 1980; p. 179.

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