Title:
METHODS AND APPARATUS FOR SENSOR DIAGNOSTICS
Document Type and Number:
WIPO Patent Application WO/2015/100214
Kind Code:
A3
Abstract:
Methods and apparatus to provide an integrated circuit having a magnetic sensing element having differential first and second outputs and an input, the input to receive current and first and second switches coupled to a respective one of the differential first and second outputs. A first voltage source is coupled between the first and second switches, the first and second switches having a first state in which the first voltage source is coupled across the differential first and second outputs, and an IC output can output a voltage corresponding to the first voltage source when the first and second switches are in the first state for monitoring operation of a signal path from the magnetic sensing element to the IC output.
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Inventors:
MILANO SHAUN D (US)
EL BACHA GEORGES (US)
DOOGUE MICHAEL C (US)
HAAS DAVID J (US)
DELMAIN GREGORY (US)
TAYLOR WILLIAM P (US)
GABOURY MICHAEL (US)
EL BACHA GEORGES (US)
DOOGUE MICHAEL C (US)
HAAS DAVID J (US)
DELMAIN GREGORY (US)
TAYLOR WILLIAM P (US)
GABOURY MICHAEL (US)
Application Number:
PCT/US2014/071825
Publication Date:
November 19, 2015
Filing Date:
December 22, 2014
Export Citation:
Assignee:
ALLEGRO MICROSYSTEMS LLC (US)
International Classes:
G01R33/09; G01R31/28; G01R31/3187; G01R33/00; G01R33/02; G01R33/07; G01R35/00
Domestic Patent References:
| WO2012164915A2 | 2012-12-06 |
Foreign References:
| JPH0626968A | 1994-02-04 | |||
| US20050038623A1 | 2005-02-17 | |||
| US20100211347A1 | 2010-08-19 | |||
| US20030164711A1 | 2003-09-04 | |||
| EP1032846A1 | 2000-09-06 |
Attorney, Agent or Firm:
DURKEE, Paul, D. et al. (Crowley Mofford & Durkee, LLP,Suite 301A,354A Turnpike Stree, Canton Massachusetts, US)
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