Current sensor operating according to the compensation theorem
US5565765A · kind A · utility
9Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Jun 26, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/185
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current sensor operating according to the compensation thereon which is particularly suited for acquiring high currents has a secondary winding of the current transformer is divided into at least two sub-windings that are supplied by different amplifiers in an amplifier arrangement. This results in symmetrical loading of the supply voltage so that twice as high a compensation current is enabled given the same internal resistance of the sub-windings and same resistance of the terminating resistor as in known current sensors of this type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.