Electric field grading protection design surrounding a galvanic or capacitive isolator
AssigneeAnalog Devices International Unlimited Company
InventorsSombel Diaham, Paul Lambkin, Bernard Patrick Stenson, Patrick M. McGuinness, Laurence B. O'Sullivan, Stephen O'Brien
Life of this patent
Estimating the term…
Abstract
Micro-isolators exhibiting enhanced isolation breakdown voltage are described. The micro-isolators may include an electrically floating ring surrounding one of the isolator elements of the micro-isolator. The isolator elements may be capacitor plates or coils. The electrically floating ring surrounding one of the isolator elements may reduce the electric field at the outer edge of the isolator element, thereby enhancing the isolation breakdown voltage.
Claims21
A micro-isolator with enhanced isolation breakdown voltage, comprising:
- a first isolator element in a first plane;
- a second isolator element in a second plane;
- a first dielectric material, comprising a polymer, disposed between the first and second isolator elements;
- and
- an electrically floating ring disposed in the first plane and surrounding the first isolator element.
A micro-isolator with enhanced isolation breakdown voltage, comprising:
- first and second isolator elements disposed in respective planes;
- a dielectric material, comprising a polymer, disposed between the first and second isolator elements;
- and
- an electrically floating ring in-plane with and surrounding the first isolator element.
16-20. (canceled)
A micro-isolator with enhanced isolation breakdown voltage, comprising:
- a first plane comprising a first isolator element;
- a second plane comprising a second isolator element;
- a first dielectric material, comprising a polymer, disposed between the first and second isolator elements;
- and
- an electrically floating ring disposed in the first plane and surrounding the first isolator element.
Dependencies are inferred from the claim text.