Systems and methods for obtaining large creepage isolation on printed circuit boards
US9049783B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Mar 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electrical circuit with large creepage isolation distances is provided. In some embodiments, the electrical circuit is capable of increasing creepage isolation distances by many multiples over traditional electrical circuits. In one embodiment, an electrical circuit comprises a ground circuit optically coupled to a floating circuit, and an isolated circuit optically coupled to the floating circuit. The circuits can be optically coupled with opto-isolators, for example. The isolated circuit can have a creepage isolation distance at least twice as large as a traditional circuit. In some embodiments, “n” number of floating circuits can be optically coupled between the ground circuit and the isolated circuit to increase the total creepage isolation distance by a factor of “n”. Methods of use are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.