Enhanced cost effective method for high current measurements
US6940266B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Dec 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/203
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electrical connection between a power source and a threaded aperture in a power device is made by means of a terminal lug and a bolt. In order to measure the current, a second electrical path is made in parallel with the bolted connection, and current in the second path is sensed. The bolt may carry the main current, or an insulating spacer may be used which prevents significant current flow in the bolt. In one embodiment, the parallel current path extends through a conductor arrangement including additional lugs through which the bolt passes, and in another arrangement the parallel path extends through traces of a printed circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.