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:
Aug. 26, 2014
Filed:
Apr. 24, 2012
Peter Gerard Steeneken, Valkenswaard, NL;
Maarten Jacobus Swanenberg, Berg en Dal, NL;
Henk Boezen, Nijmegen, NL;
Gerhard Koops, Aalst, BE;
Frans Bontekoe, Nijmegen, NL;
Reinout Woltjer, Eindhoven, NL;
Peter Gerard Steeneken, Valkenswaard, NL;
Maarten Jacobus Swanenberg, Berg en Dal, NL;
Henk Boezen, Nijmegen, NL;
Gerhard Koops, Aalst, BE;
Frans Bontekoe, Nijmegen, NL;
Reinout Woltjer, Eindhoven, NL;
NXP B.V., Eindhoven, NL;
Abstract
One or more embodiments provide circuitry for isolation and communication of signals between circuits operating in different voltage domains using capacitive coupling. The embodiments utilize capacitive structures having increased breakdown voltage in comparison to previous parallel plate implementations. The capacitive isolation is provided by parallel plate capacitive structures, each implemented to have parallel plates of different horizontal sizes. Due to the difference in horizontal size, edges of the parallel plates, where electric fields are the strongest, are laterally offset from the region where the parallel plates overlap. As a result, breakdown voltage between the parallel plates is increased.