The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2008
Filed:
Mar. 14, 2007
Romi O. Mayder, San Jose, CA (US);
Romi O. Mayder, San Jose, CA (US);
Silicon Test System, Inc., San Jose, CA (US);
Abstract
An electronic switching apparatus for use in automated test equipment. The electronic switching apparatus includes a transconducting device having source and drain regions where at least one of the source and drain regions is configured to be coupled to a voltage source. A voltage comparison means is coupled to the transconducting device for determining a relative magnitude of voltage applied to the source and drain regions and a multiplexer has an input coupled to the voltage comparison means for selecting a higher of the relative magnitudes of voltage. A gate adder having an input is coupled to an output of the multiplexer and an output is coupled to a gate of the transconducting device. The gate adder is configured to add a fixed voltage to the higher of the relative magnitudes of voltage. A bulk adder having an input is coupled to an output of the multiplexer and an output is coupled to a bulk of the transconducting device. The bulk adder is configured to subtract a fixed voltage from the higher of the relative magnitudes of voltage.