发明名称 Sensor system with a full bridge configuration of four resistive sensing elements
摘要 It is described a sensor system (100, 200, 300) comprising (a) a first sensor path (110) comprising a first sensing element (111) and a second sensing element (112) being connected in series between a first supply terminal (st1) and a second supply terminal (st2) and an intermediate node (in, in1) being provided in between the first supply terminal (st1) and the second supply terminal (st2), (b) a second sensor path (120) comprising (b1) a third sensing element (123) and a fourth sensing element (124) being connected in series between the first supply terminal (st1) and the second supply terminal (st2), wherein the third sensing element (123) is subdivided into a first third subcomponent (R3a) and a second third subcomponent (R3b) and the fourth sensing element (124) is subdivided into a first fourth subcomponent (R4a) and a second fourth subcomponent (R4b), (b2) a first reference node (rn1) being provided in between the first supply terminal (st1) and the second supply terminal (st2), and (b3) a second reference node (rn2) being provided in between the first supply terminal (st1) and the second supply terminal (st2) and being different from the first reference node (rn1), and (c) a processing unit (150, 250, 350) receiving an input signal (vinp) from the intermediate node (in, in1), a first reference signal (vrefp) from the first reference node (rn1), and a second reference signal (vrefh) from the second reference node (rn2) and being configured for providing a sensor output signal (dout) based on the input signal (vinp), the first reference signal (vrefp) and the second reference signal (vrefn).
申请公布号 EP2955492(A1) 申请公布日期 2015.12.16
申请号 EP20140172427 申请日期 2014.06.13
申请人 NXP B.V. 发明人 SCHAPENDONK, EDWIN;VAN DER ZEE, PIETER;SEBASTIANO, FABIO;VAN VELDHOVEN, ROBERT
分类号 G01D18/00 主分类号 G01D18/00
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