Patent ID: 11906610
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A method for providing offset calibration and detecting fault conditions using a controller component the method comprising:
monitoring, by a first diagnostic circuit of the controller component, a first branch of a resistance-based bridge circuit; and
monitoring, by a second diagnostic circuit of the controller component, a second branch of the resistance-based bridge circuit,
wherein each of the first diagnostic circuit and the second diagnostic circuit comprises two transistors,
wherein the first diagnostic circuit and the second diagnostic circuit are electronically coupled to a signal conditioning circuit of the controller component, and the signal conditioning circuit is configured to condition an output of the resistance-based bridge circuit; and
wherein the controller component comprises a level-shifter element configured to translate an electrical signal/output from an analog supply domain to a digital supply domain; and
wherein the controller is configured to detect a fault condition and an open connection condition by monitoring output of the first and second diagnostic circuit, wherein each of the first and second diagnostic circuit is configured to pull low, buffer, and invert output voltage to provide active low-fault detection.