Title:
APPARATUS AND METHOD FOR IN SITU CURRENT MEASUREMENT IN A CONDUCTOR
Document Type and Number:
WIPO Patent Application WO/2014/124038
Kind Code:
A1
Abstract:
Conductor apparatus (100) includes a bus bar conductive structure (110) and a magnetometer (120). The conductive structure conducts current along a longitudinal direction (102) and has an outer periphery extending between first and second longitudinal ends (111, 112). The magnetometer includes an array of at least two magnetic sensors located on a single integrated circuit at least partially within the outer periphery of the conductive structure. The individual magnetic sensors have an associated sensing direction transverse to the longitudinal direction of the conductive structure. A sensor interface circuit coupled to the magnetic sensors generates at least one output signal or value representing longitudinal current flow in the conductive structure based at least partially on at least one signal from the magnetic sensors. Multiple wires (122) are electrically connected to the sensor interface circuit and extend outside the outer periphery of the conductive structure.
Inventors:
IVANOV MIKHAIL VALERYEVICH (DE)
CHENNUPATI SIVA RAGHURAM PRASAD (DE)
SCHAFFER VIOLA (DE)
CHENNUPATI SIVA RAGHURAM PRASAD (DE)
SCHAFFER VIOLA (DE)
Application Number:
PCT/US2014/014923
Publication Date:
August 14, 2014
Filing Date:
February 05, 2014
Export Citation:
Assignee:
TEXAS INSTRUMENTS INC (US)
TEXAS INSTRUMENTS DEUTSCHLAND (DE)
TEXAS INSTRUMENTS JAPAN (JP)
TEXAS INSTRUMENTS DEUTSCHLAND (DE)
TEXAS INSTRUMENTS JAPAN (JP)
International Classes:
G01R19/00
Foreign References:
| EA008209B1 | 2007-04-27 | |||
| US20040232913A1 | 2004-11-25 | |||
| US6731105B1 | 2004-05-04 | |||
| US7834620B2 | 2010-11-16 | |||
| US20060061350A1 | 2006-03-23 |
Other References:
See also references of EP 2989473A4
Attorney, Agent or Firm:
FRANZ, Warren L. et al. (P.O. Box 655474Mail Station 399, Dallas TX, US)
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