Patent ID: 7411428

Claim:
A multisense-adaptive reading circuit associated to a sense module, the reading circuit comprising: at least a first and a second current source coupled to a first and a second terminal of said module, said first and second terminals being coupled respectively to a first and a second resistive element; a tracker to track current information output from said first and second current sources; a reading mode detector to detect a common mode voltage value and based on said value, to determine a reading mode being used among possible reading modes to self-adapt said reading circuit to said reading mode being used, by providing enabling signals to said first and second current sources and to said tracker, wherein: said reading mode detector includes a first and a second comparator with a first and a second threshold respectively, said second threshold being lower than said first threshold in order to determine said reading mode being used starting from said detected value of said common mode voltage according to conditions: a. CS−<Vs 2 : first reading mode on a sense element associated to a low side transistor of said module; b. Vs 2 <CS−<Vs 1 : second reading mode on an inductance of said module; and c. Cs−>Vs 1 : third reading mode on a sense element associated to a high side transistor of said module, wherein CS− is said common mode voltage value, Vs 1 is said first threshold, and Vs 2 is said second threshold.