DRIVING CIRCUIT, ANGULAR VELOCITY DETECTOR, INERTIA MEASUREMENT DEVICE, MOBILE BODY POSITIONING DEVICE, PORTABLE ELECTRONIC APPARATUS, ELECTRONIC DEVICE, AND MOBILE BODY

摘要

PROBLEM TO BE SOLVED: To provide a driving circuit that can reduce a leakage signal generated on the basis of the driving vibration of an angular velocity detection element.;SOLUTION: The driving circuit, which is for driving an angular velocity detection element, includes: a driving signal generation circuit for generating a driving signal which drives the angular velocity detection element; and a bias signal generating circuit for generating a bias signal to be applied to the angular velocity detection element. The detection electrode of the angular velocity detection element outputs a leakage signal generated on the basis of the driving vibration of the angular velocity detection element and a Coriolis signal generated on the basis of the angular velocity applied to the angular velocity detection element. In the bias signal, the voltage value when the leakage signal is the largest is smaller than the voltage value when the Coriolis signal is the largest.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2019,JPO&INPIT