Calibrating a tester using ESD protection circuitry

Details Calibrating a tester using ESD protection circuitry Calibrating a tester using ESD protection circuitry

2007-04-02

2009-02-10

Tang, Minh N (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

C324S763010, C324S765010

Reexamination Certificate

active

07489125

ABSTRACT:
An apparatus includes a circuit element that requires calibration, a calibration circuit for use in calibrating the circuit element, and a damping diode electrically connectable in a first path that includes the calibration circuit and electrically connectable in a second path that excludes the calibration circuit. The first path is for electrically connecting the calibration circuit and the circuit element, and the second path is for use in protecting the apparatus from electrostatic discharge. A switching circuit is used to switch the clamping diode between the first path and the second path.

REFERENCES:
patent: 6331783 (2001-12-01), Hauptman
patent: 7333311 (2008-02-01), Kerley et al.

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