Patent ID: 8547120
Filing Date: 2013-10-01
Classification: G01R

Abstract:
1. A test system for testing a DUT, said system comprising: a first apparatus including: a first hard current-limiter adapted to be operated in series relationship between said first pulsed signal source and said DUT, said first hard current-limiter operating to limit current to no more than a first current limit; and a first voltage sensor adapted to sense a voltage across said DUT in response to said first pulsed signal source; and a second apparatus including: a second hard current-limiter adapted to be operated in series relationship between said second pulsed signal source and said DUT, said second hard current-limiter operating to limit current to no more than a second current limit; and a second voltage sensor adapted to sense a voltage across said DUT in response to said second pulsed signal source; and a current measurement circuit, at least one of said first and second apparatuses being adjustable to provide a virtual ground to said DUT by adjusting a respective pulse source, wherein the voltage and current necessary to achieve the virtual value is measured.