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:
Apr. 05, 2016
Filed:
Nov. 07, 2013
Fairchild Korea Semiconductor Ltd., Bucheon, KR;
Abstract
A bidirectional interface circuit includes a first current mirror circuit that copies a first reference current to generate a first current sunk from a first output terminal, a second current mirror circuit that copies a second reference current to generate a second current sunk from a second output terminal, an interception switch that is connected between the first output terminal and the second output terminal, a first comparator that outputs an upper state signal based on a comparison result of a voltage of the first output terminal and a first threshold voltage, a third current mirror circuit that copies one of a third reference current and a fourth reference current to supply a third current flowing to a third output terminal, and a second comparator that outputs a lower state signal based on a comparison result of a voltage of the second output terminal and a second threshold voltage.