Physical quantity detection circuit, physical quantity detection device, inertial measurement device, mobile body positioning device, portable electronic device, electronic device, mobile body

摘要

An object of the present invention is to provide a physical quantity detection circuit capable of determining an abnormality of a physical quantity detection element even when not stationary. According to a plurality of detection signals output from a plurality of physical quantity detection elements for detecting physical quantities with respect to a plurality of different axes, according to the magnitude and direction of the physical quantity detected with respect to the plurality of axes A physical quantity signal generation circuit for generating a plurality of physical quantity signals, and combining the two physical quantity vectors of the plurality of physical quantity vectors as the plurality of physical quantity vectors in the coordinate system based on the plurality of axes. Based on the combined vector generation circuit that generates at least one vector, and based on the combined vector, it is determined whether the plurality of physical quantity detection elements are normal or at least one of the plurality of physical quantity detection elements is abnormal. And an abnormality determination circuit. [Selected figure] Figure 4