公开(公告)号：US09664749B2

公开(公告)日：2017-05-30

申请号：US14662786

申请日：2015-03-19

Applicant: SAGATEK CO., LTD.

Inventor： Kuei-Ann Wen ,  Chia-Feng Chang

IPC: G01R33/02 ,  G01R33/028 ,  G01R33/038

CPC classification number: G01R33/028 ,  G01R33/0286 ,  G01R33/038

Abstract: Disclosed is a resonant magnetic field sensor, comprising a detector structure including a mass block and displacement detection electrodes; capacitance to voltage converter and amplifier to convert detection signals of the detection electrodes into voltage signals, as output signals of the magnetic field sensor; and a vibration driving circuit to provide the output signals to the mass block in the form of a current, to drive the mass block to vibrate. The vibration driving circuit may be a comparator.