Methods and apparatus for a current sensor having fault detection and self test functionality

US9383425B2 · kind B2 · utility

Assignee

• Allegro MicroSystems, LLC · US

Inventors

• Shaun D. Milano · Dunbarton, US
• Thomas Kerdraon · Lenzkirch, DE
• Georges El Bacha · Manchester, US
• Michael J. Gaboury · Burnsville, US
• Michael C. Doogue · Bedford, US

Key dates

• Filing date: Dec 28, 2012
• Grant date: Jul 5, 2016
• Expiry date: Apr 10, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02H1/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Methods and apparatus for an integrated circuit having a magnetic sensing element, a fault detection module including circuitry to detect a fault condition and to self-test operation of the circuitry to detect the fault. The integrated circuit includes a fault pin to indicate the fault condition.