Microchip Technology Inc.

Space Systems/loral, LLC

Mathieu Sureau

Pierre R Irissou

David Truong

Naveen Cannankurichi

Jebas Paul Daniel T

Sunny Joel

Subhasis Sasmal

Pablito B Yra

Stephane Le Goff

Russell Stevens

A system and method for monitoring analog front-end (AFE) circuitry of an inductive position sensor. A redundant AFE channel is provided and alternatively utilized with a sine AFE channel or a cosine AFE channel of the AFE circuitry to obtain a voltage difference that may result in a detection angle error at the electronic control unit (ECU) of the inductive position sensor.

System and method for monitoring analog front-end (AFE) circuitry of an inductive position sensor

A load current is limited to a safe level with a current protection logic circuit within a first selected interval after detection of a fault condition. The current protection logic circuit returns the load current to a normal level within a second selected interval after correction of the fault condition, wherein said safe level is less than one half of the normal level. The current protection logic circuit is a feature of a high side driver comprising at least two source drivers, each source driver being configured to switch an electrical load to a common power supply, and comprising a respective current protection logic circuit.

Source driver current fold-back protection

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San Francisco, CA, United States of America

Mathieu Sureau